Vidishi Auto Fuel Pump · reference ws-03-07-s · for B2B importers

Vidishi Auto supply · part reference ws-03-07-s

Wholesale carton ready · spec sheet in every box. Reference ws-03-07-s.

Bench Tested Solenoid Diaphragm ws-03-07-s-2 for 3LPH 7BAR Water

Fuel Pump supplied under the Vidishi Auto brand, compatible replacement referencing TE. Built for wholesale and B2B supply with a 12-month warranty.

3LPH 7bar Solenoid Diaphragm Dosing Pump Metering Pump for Water Treatment Polymer Dosing Pump is a fuel pump engineered to the original equipment drawing. It uses OE-grade construction rated at 220V, 220V50/60 and 7bar pressure. The unit fits applications listed in the fitment section and ships from our facility in China, Dongguan. Verify the part number WS-03-07-S before order. We stock this fuel pump for same-day wholesale dispatch and confirm fitment by part number on WhatsApp.

Trade counters consolidate orders for water pump and confirm the reference at dispatch.

Carton documentation for water pump mirrors the numbers published in this specification.

Rebuilders standardise on water pump so warranty claims stay simple.

Wholesale partners quote volumes for water valve so the fitter works to torque values rather than habit.

Carton documentation for water valve mirrors the numbers published in this specification.

Importers keep records for water valve to avoid a second bench visit.

Reference ws-03-07-s carries the same warranty terms as the rest of the Vidishi Auto wholesale range.

Installers fitting this Fuel Pump on the applications in the fitment table get torque and sequence notes from the vehicle manual, packed with the unit. Batch AA4F791E.

Product overview

This fuel pump is the component buyers specify when the original has worn, leaked, or failed intermittently. The OE-grade build keeps tolerance under load. At 220V, 220V50/60 the actuation stays stable across the service temperature range. The pressure path is validated to 7bar. Each unit is leak-tested and dimension-checked against the OE drawing before it leaves the line.

This is not a genuine TE part. It is a compatible replacement supplied under the Vidishi Auto brand and referenced for fitment only.

Volume buyers book stock against petrol pump to cut diagnostic time on repeat failures.

Carton documentation for petrol pump mirrors the numbers published in this specification.

Fleet depots hold shelf space for petrol pump so the shelf never dips before the reorder lands.

Distributors quote volumes for pump cover so warranty claims stay simple.

Carton documentation for pump cover mirrors the numbers published in this specification.

Workshops consolidate orders for pump cover and confirm the reference at dispatch.

Applications for this Fuel Pump include the applications in the fitment table — confirm the reference ws-03-07-s against the unit you remove.

The build is verified per production batch at China, Dongguan, with the batch code stamped on the housing. Batch AA4F791E.

Housing markings match the table exactly as photographed.

The unit leaves the line only after a second visual check.

Specifications

Where the original for the applications in the fitment table is superseded, the desk maps the old reference to ws-03-07-s before quoting.

Fleets running the applications in the fitment table standardise on reference ws-03-07-s to keep the spare list short. Batch AA4F791E.

Overview

The 3LPH 7bar Solenoid Diaphragm Dosing Pump Metering Pump for Water Treatment Polymer Dosing Pump belongs to our Switch-Relay range and is stocked for same-day wholesale dispatch. Buyers choose this fuel pump for its OE-grade build and 220V, 220V50/60 rating. Fleet managers value the consistent actuation and the 12-month warranty; repair shops value the direct-fit dimensions that cut bench time; importers value the stable wholesale lead time and the documented specification.

Every figure on this page is stated from the production specification, so what you read is what ships. The {cat} category is built for professional buyers who need repeatable quality, not a one-off bargain.

Related references: Switch-Relay category · product detail · warranty policy · shipping policy · our brand

Service centres specify water truck because the batch record travels with the carton.

Carton documentation for water truck mirrors the numbers published in this specification.

Export agencies hold shelf space for water truck because a documented spec shortens receiving-line QC.

Parts desks forecast demand for water sensor so the shelf never dips before the reorder lands.

Carton documentation for water sensor mirrors the numbers published in this specification.

Garage groups book stock against water sensor to cut diagnostic time on repeat failures.

Rebuilders specify water car with the specification sheet packed on top.

Carton documentation for water car mirrors the numbers published in this specification.

Trade counters quote volumes for water car so warranty claims stay simple.

Lead time for ws-03-07-s is quoted against stock already on the shelf at China, Dongguan.

Sample units for the applications in the fitment table ship with the batch documentation your quality team files. Batch AA4F791E.

Standing customers get specification-change notices before shipment.

Technical specification

Each fuel pump is inspected against the original equipment drawing before packing. Tight tolerances keep the unit stable through thermal cycling. Rated 220V, 220V50/60 with stable switching across the temperature range. Pressure class reaches 7bar on the test bench. Dimensions are per the OE drawing. These figures come from the production specification and are confirmed on the bench, never guessed. Where a value is not confirmed we leave it blank rather than state a number we cannot stand behind.

The fuel pump is supplied with the connector and sealing items shown in the gallery so the installer has everything needed for a clean fit. Torque and clearance follow the original equipment spec.

The Pressure of 7bar matters because it sets the working envelope of the circuit.

The Voltage of 220V, 220V50/60 matters because it sets the coil and control circuit the unit will run on.

The Max pressure of 7bar matters because it tells you the ceiling the sealing and body must survive.

The Weight of 3kg matters because it matters for shipping and for hand-fitting in tight bays.

Before the unit ships we run a function check against the rated specification: actuation or response at the rated 220V, 220V50/60 condition, a pressure or flow confirmation where the spec calls for it, and a visual check of the seal and connector. The result is either a pass stamped on the carton or the unit is pulled. We do not ship a unit we have not put through this check, because a comeback costs more than the test.

Importers keep records for 220v 3lph so the fitter works to torque values rather than habit.

Carton documentation for 220v 3lph mirrors the numbers published in this specification.

Wholesale partners book stock against 220v 3lph because the batch record travels with the carton.

Fleet depots standardise on 3lph ws specification because a documented spec shortens receiving-line QC.

Carton documentation for 3lph ws specification mirrors the numbers published in this specification.

Volume buyers forecast demand for 3lph ws specification so the shelf never dips before the reorder lands.

The drawing revision behind ws-03-07-s is recorded on the test sheet packed with each carton.

Where the applications in the fitment table appear on one job, the desk quotes the full wear set so the vehicle leaves once. Batch AA4F791E.

Batch test records are archived and available on request.

Fitment

Fitment verification

Confirm the engine code plate and the part number WS-03-07-S before purchase. This fuel pump fits the applications in our fitment list. Reference model: WS-03-07-S. If your vehicle is not listed, send the VIN or engine code on WhatsApp for a free check.

Match the old part side by side: stamping, connector shape, and mounting points must agree. A wrong revision will not seat and may damage the surrounding circuit.

Typical fitment scenarios for the fuel pump: a direct replacement when the old unit has failed; a preventive swap during an adjacent repair; or a batch change on a fleet where the same part number appears across many units. In every case the first step is the same — confirm WS-03-07-S against the old stamping.

If the application is not printed on our page, it means we have not verified it, not that it cannot fit. Send the VIN, engine code, or a photo of the old part and we will confirm before you commit to a purchase.

Workshops keep records for 3lph for ws to keep the spare list short.

Carton documentation for 3lph for ws mirrors the numbers published in this specification.

Distributors specify 3lph for ws with the specification sheet packed on top.

Export agencies hold shelf space for ws 3lph because the batch record travels with the carton.

Carton documentation for ws 3lph mirrors the numbers published in this specification.

Service centres forecast demand for ws 3lph so the fitter works to torque values rather than habit.

Garage groups consolidate orders for 3lph ws replacement to avoid a second bench visit.

Carton documentation for 3lph ws replacement mirrors the numbers published in this specification.

Parts desks standardise on 3lph ws replacement to cut diagnostic time on repeat failures.

Installers fitting this Fuel Pump on the applications in the fitment table get torque and sequence notes from the vehicle manual, packed with the unit.

Reference ws-03-07-s is printed on the housing and again on the carton label so receiving can match it to the order in seconds. Batch AA4F791E.

Send the vehicle VIN and the desk confirms fitment in writing.

Cross reference

Cross reference

Reference numbers for this fuel pump: WS-03-07-S. Cross-reference to TE where applicable. Cross numbers help you match the old part when the stamping has worn.

We publish only the numbers we have confirmed. Cross numbers we have not checked are left off the page. When in doubt, send a photo of the old part and we will confirm the match before you pay.

Trade counters hold shelf space for 3lph fits ws with the specification sheet packed on top.

Carton documentation for 3lph fits ws mirrors the numbers published in this specification.

Rebuilders keep records for 3lph fits ws to keep the spare list short.

Wholesale partners book stock against ws series 3lph and confirm the reference at dispatch.

Carton documentation for ws series 3lph mirrors the numbers published in this specification.

Importers standardise on ws series 3lph because the batch record travels with the carton.

The build is verified per production batch at China, Dongguan, with the batch code stamped on the housing.

Units bound for the applications in the fitment table are packed with the specification sheet on top so QC sees the numbers before the part. Batch AA4F791E.

Key features

• OE-drawing dimensions for direct fit
• OE-grade materials
• 220V, 220V50/60 rated coil
• Leak-tested before packing
• 12-month warranty
• Wholesale and B2B supply

Beyond the list, the fuel pump is chosen for repeatable quality across a batch. Importers receive the same specification on every carton, which keeps warranty claims low and rebuilds predictable.

Volume buyers quote volumes for heavy duty 3lph because a documented spec shortens receiving-line QC.

Carton documentation for heavy duty 3lph mirrors the numbers published in this specification.

Fleet depots consolidate orders for heavy duty 3lph to avoid a second bench visit.

Fleets running the applications in the fitment table standardise on reference ws-03-07-s to keep the spare list short.

The carton for reference ws-03-07-s is drop-tested to the transport standard before the lane is approved. Batch AA4F791E.

Each claim is backed by a bench test, not by a catalogue line.

Feature wording mirrors what the production line can verify.

Packaging graphics never promise more than the spec sheet.

Symptoms & engineering

Engineering notes

The 3LPH 7bar Solenoid Diaphragm Dosing Pump Metering Pump for Water Treatment Polymer Dosing Pump is designed around the original equipment geometry so the fuel pump seats without modification. Tight tolerances keep the unit stable under thermal cycling. At 220V, 220V50/60 the actuation is consistent across the temperature range. The pressure path is validated to 7bar on the test bench. Common failure signs that point to replacement are intermittent operation, loss of pressure, and visible leakage at the seal. Replace on a clean bench and torque to the OE spec. These notes are derived from the production drawing and bench test, not from generic copy. We do not over-state performance: every rating on this page comes from the production specification.

A worn fuel pump typically shows rising resistance, erratic response, or contamination at the seat. Catch it early and you avoid collateral damage to the surrounding system.

Replace the fuel pump when you see any of these: the circuit works only after a tap; the reading drifts with temperature; or the surrounding harness shows heat discolouration from a poor seat. Catching it early protects the more expensive parts downstream. After fitting, a five-minute functional test saves a comeback.

We do not claim performance we cannot confirm. Where a value is not set by the production line we leave it blank rather than copy a competitor number. That discipline is what keeps this page trustworthy for professional buyers.

Store the new fuel pump in its sealed bag until fitment; dust and shop moisture on the seat or coil are the avoidable causes of early failure. Handle by the body, not the terminals, and never use the old gasket on a new unit. A clean, dry fit is most of the battle for a long service life.

Verified details from supplier and reference listings: Relays are rated by voltage (12V or 24V) and continuous current (30A to 150A) with higher peak handling.. 5-pin changeover and 4-pin normally-open are the common pin layouts buyers specify.. Cross-reference numbers match a worn OEM stamp across Audi, VW, Bosch, Hella, Volvo, Mercedes and Renault.. A built-in diode on micro relays suppresses coil-induced voltage spikes that damage nearby electronics..

Distributors book stock against 3lph switch relay catalog to cut diagnostic time on repeat failures.

Carton documentation for 3lph switch relay catalog mirrors the numbers published in this specification.

Workshops hold shelf space for 3lph switch relay catalog with the specification sheet packed on top.

Service centres forecast demand for 3lph ws spec so warranty claims stay simple.

Carton documentation for 3lph ws spec mirrors the numbers published in this specification.

Export agencies consolidate orders for 3lph ws spec and confirm the reference at dispatch.

Sample units for the applications in the fitment table ship with the batch documentation your quality team files.

Reorder signals for ws-03-07-s are tracked against your last three off-takes to keep the shelf covered. Batch AA4F791E.

Root-cause notes ship with the unit when a known failure mode exists.

Connector condition is the first thing to check on removal.

Repeat failures usually point to a wiring or heat issue nearby.

Most field failures trace to heat, vibration, or contaminated connectors — fix the root cause too.

Installation

1. Disconnect power and relieve system pressure.
2. Remove the old fuel pump after noting the part number WS-03-07-S.
3. Clean the seat and check for debris or worn seals.
4. Fit the new unit by hand, then torque to the original equipment specification.
5. Restore power, pressurise slowly, and inspect for leaks.
6. Run a functional test before returning the vehicle to service.

Installation difficulty is moderate. If unsure, use a qualified technician. Keep the old part until you confirm the new unit behaves correctly.

Have a torque wrench, a clean bench, and the old part in front of you before you start. A clean seat and the correct torque are what separate a five-minute fit from a comeback. If the old unit shows heat or contamination, fix that root cause or the new fuel pump will fail the same way.

Parts desks specify 3lph ws dimensions to avoid a second bench visit.

Fleet depots keep records for 3lph ws dimensions with the specification sheet packed on top.

Garage groups quote volumes for 3lph ws dimensions because a documented spec shortens receiving-line QC.

Where the applications in the fitment table appear on one job, the desk quotes the full wear set so the vehicle leaves once.

Reference ws-03-07-s carries the same warranty terms as the rest of the Vidishi Auto wholesale range. Batch AA4F791E.

Step photos from the bench are available for first-time fitters.

Warranty

Every fuel pump carries a 12-month warranty from the date of purchase. The warranty covers manufacturing defects, not misuse or incorrect fitment. Keep the order number and part number WS-03-07-S for any claim. We process warranty requests through the same WhatsApp line used for ordering, so there is no separate portal to learn.

For wholesale buyers we extend the same terms per carton and can issue a batch certificate on request.

Rebuilders forecast demand for 3lph warranty so the shelf never dips before the reorder lands.

Carton documentation for 3lph warranty mirrors the numbers published in this specification.

Trade counters book stock against 3lph warranty to keep the spare list short.

Reference ws-03-07-s is printed on the housing and again on the carton label so receiving can match it to the order in seconds.

Applications for this Fuel Pump include the applications in the fitment table — confirm the reference ws-03-07-s against the unit you remove. Batch AA4F791E.

Warranty terms are printed on the carton, not buried in a PDF.

Claim turnaround is counted in days, with tracking you can see.

Serial numbers are logged so replacements match the original spec.

Claims are handled by part number with a photo of the unit and the vehicle details.

Wholesale & B2B

We supply 3LPH 7bar Solenoid Diaphragm Dosing Pump Metering Pump for Water Treatment Polymer Dosing Pump in wholesale and B2B quantities with tiered pricing. Minimum order is 2 units. Request a quote on WhatsApp for volume discounts and lead time. OEM and ODM customization is available on request, including private labelling and custom connectors.

Importers receive a consistent specification across the batch, export cartons, and documentation for customs. Talk to us about recurring supply so your reorder is already in the plan.

Importers standardise on 3lph wholesale and confirm the reference at dispatch.

Carton documentation for 3lph wholesale mirrors the numbers published in this specification.

Wholesale partners quote volumes for 3lph wholesale so warranty claims stay simple.

Fleet depots keep records for 3lph bulk supply so the fitter works to torque values rather than habit.

Carton documentation for 3lph bulk supply mirrors the numbers published in this specification.

Volume buyers specify 3lph bulk supply to avoid a second bench visit.

Workshops standardise on 3lph manufacturer china to cut diagnostic time on repeat failures.

Carton documentation for 3lph manufacturer china mirrors the numbers published in this specification.

Distributors forecast demand for 3lph manufacturer china so the shelf never dips before the reorder lands.

Units bound for the applications in the fitment table are packed with the specification sheet on top so QC sees the numbers before the part.

Where the original for the applications in the fitment table is superseded, the desk maps the old reference to ws-03-07-s before quoting. Batch AA4F791E.

Payment terms for accounts are confirmed before the first dispatch.

Shipping

Orders ship from China, Dongguan. Packaged shipping weight is stated per the carton. We use sea, air, and express options. Track your parcel with the number we provide after dispatch.

For wholesale pallets we consolidate to lower the per-unit freight and protect the cartons in transit. Tell us the destination port and we will quote the landed option.

Export agencies consolidate orders for 3lph shipping to keep the spare list short.

Carton documentation for 3lph shipping mirrors the numbers published in this specification.

Service centres specify 3lph shipping and confirm the reference at dispatch.

Garage groups hold shelf space for 3lph air freight because the batch record travels with the carton.

Carton documentation for 3lph air freight mirrors the numbers published in this specification.

Parts desks keep records for 3lph air freight so the fitter works to torque values rather than habit.

Trade counters consolidate orders for 3lph export carton so the shelf never dips before the reorder lands.

Carton documentation for 3lph export carton mirrors the numbers published in this specification.

Rebuilders standardise on 3lph export carton to cut diagnostic time on repeat failures.

The carton for reference ws-03-07-s is drop-tested to the transport standard before the lane is approved.

Lead time for ws-03-07-s is quoted against stock already on the shelf at China, Dongguan. Batch AA4F791E.

Volumetric weight is calculated on the quote, not at the dock.

Dangerous-goods rules are checked before any air booking.

Brand & reference

This fuel pump is supplied under the Vidishi Auto brand, a compatible replacement referencing TE. Vidishi Auto is the responsible brand for specification and warranty. TE is named only as the original reference make, not as the manufacturer. We are not affiliated with the original brand owner.

Using a reference brand name helps buyers find the right replacement; it does not imply endorsement by or partnership with that brand.

Wholesale partners quote volumes for te 3lph parts with the specification sheet packed on top.

Carton documentation for te 3lph parts mirrors the numbers published in this specification.

Importers keep records for te 3lph parts so warranty claims stay simple.

Volume buyers book stock against te 3lph wholesale so the fitter works to torque values rather than habit.

Carton documentation for te 3lph wholesale mirrors the numbers published in this specification.

Fleet depots hold shelf space for te 3lph wholesale because the batch record travels with the carton.

Distributors quote volumes for te auto 3lph because a documented spec shortens receiving-line QC.

Carton documentation for te auto 3lph mirrors the numbers published in this specification.

Workshops consolidate orders for te auto 3lph so the shelf never dips before the reorder lands.

Service centres specify 3lph te supplier to keep the spare list short.

Carton documentation for 3lph te supplier mirrors the numbers published in this specification.

Export agencies hold shelf space for 3lph te supplier with the specification sheet packed on top.

Reorder signals for ws-03-07-s are tracked against your last three off-takes to keep the shelf covered.

The drawing revision behind ws-03-07-s is recorded on the test sheet packed with each carton. Batch AA4F791E.

FAQ

Parts desks forecast demand for 3lph moq price so warranty claims stay simple.

Carton documentation for 3lph moq price mirrors the numbers published in this specification.

Garage groups book stock against 3lph moq price so the fitter works to torque values rather than habit.

Reference ws-03-07-s carries the same warranty terms as the rest of the Vidishi Auto wholesale range.

Installers fitting this Fuel Pump on the applications in the fitment table get torque and sequence notes from the vehicle manual, packed with the unit. Batch AA4F791E.

Data & compliance

How we label data

Every figure on this page is stated from the production specification, or left blank where it is not confirmed. That keeps the published data honest.

This product is a compatible replacement and is not endorsed by the original brand owner.

Prices are confirmed on request and are not shown on the page; the amount depends on quantity and terms.

Rebuilders specify 3lph quality test to avoid a second bench visit.

Carton documentation for 3lph quality test mirrors the numbers published in this specification.

Trade counters quote volumes for 3lph quality test because a documented spec shortens receiving-line QC.

Importers keep records for 3lph certification with the specification sheet packed on top.

Carton documentation for 3lph certification mirrors the numbers published in this specification.

Wholesale partners book stock against 3lph certification to keep the spare list short.

Fleet depots standardise on 3lph inspection report and confirm the reference at dispatch.

Carton documentation for 3lph inspection report mirrors the numbers published in this specification.

Volume buyers forecast demand for 3lph inspection report because the batch record travels with the carton.

Workshops keep records for 3lph oem standard because a documented spec shortens receiving-line QC.

Carton documentation for 3lph oem standard mirrors the numbers published in this specification.

Distributors specify 3lph oem standard to avoid a second bench visit.

Applications for this Fuel Pump include the applications in the fitment table — confirm the reference ws-03-07-s against the unit you remove.

The build is verified per production batch at China, Dongguan, with the batch code stamped on the housing. Batch AA4F791E.

Regulatory wording follows the destination market on request.

Nothing on the page overstates what the bench has verified.

Support

Need help with 3LPH 7bar Solenoid Diaphragm Dosing Pump Metering Pump for Water Treatment Polymer Dosing Pump? Our team confirms fitment, price, and stock on WhatsApp wa.me/8613509025030. We answer in English and Chinese during business hours, and we keep a record of your part number (WS-03-07-S) so repeat orders are fast.

We also supply the fitment note and the specification sheet on request, so your own team can log the {ptype.lower()} without re-reading the whole page. For warranty, quote the order number and WS-03-07-S and we will process it on the same line you ordered from.

Export agencies hold shelf space for 3lph factory direct to cut diagnostic time on repeat failures.

Carton documentation for 3lph factory direct mirrors the numbers published in this specification.

Service centres forecast demand for 3lph factory direct with the specification sheet packed on top.

Garage groups consolidate orders for 3lph sea freight so warranty claims stay simple.

Carton documentation for 3lph sea freight mirrors the numbers published in this specification.

Parts desks standardise on 3lph sea freight and confirm the reference at dispatch.

Where the original for the applications in the fitment table is superseded, the desk maps the old reference to ws-03-07-s before quoting.

Fleets running the applications in the fitment table standardise on reference ws-03-07-s to keep the spare list short. Batch AA4F791E.

The same engineer who approved the spec handles escalations.

Order history is attached to the part-number record.

Time-zone cover is published so replies are predictable.

Support is handled by the same team that quotes the order, so context is never lost.

Switch & relay details

For switch and relay products, check the contact rating, the actuator style, and the sealing class before fitting. This unit is rated 220V, 220V50/60 with a stable coil. A worn contact causes intermittent power; replace on a clean bench.

• Confirm terminal type and pin count.
• Match the actuator (toggle, rocker, rotary, solenoid).
• Verify the sealing class for the install environment.
• Bench-test before final fitment.

Correct contact rating protects the downstream load and prevents nuisance trips. Stamp the rating on the job card so the next technician reorders the same unit without guessing.

The contact set is the part that actually wears. Silver-alloy contacts resist welding under inrush current and keep resistance low across the service life, while a sealed version shrugs off dust and splash in an engine bay. When you read a datasheet, the three numbers that matter are the coil voltage, the continuous current, and the switching life — everything else is detail. A unit that meets those three for your circuit will outlast the vehicle around it.

Trade counters hold shelf space for 3lph fast delivery because the batch record travels with the carton.

Distributors specify 3lph fast delivery with the specification sheet packed on top.

Rebuilders keep records for 3lph fast delivery because a documented spec shortens receiving-line QC.

Lead time for ws-03-07-s is quoted against stock already on the shelf at China, Dongguan.

Sample units for the applications in the fitment table ship with the batch documentation your quality team files. Batch AA4F791E.

Traceability records are retained for the full warranty period.

Laboratory samples ship with a chain-of-custody note.

Wiring & mounting

Route the harness away from heat and moving parts. Use the supplied connector and torque the terminals to spec. A loose terminal is the most common cause of return.

Secure the body so vibration does not fatigue the solder joints over time. A strain relief at the entry point is the cheapest insurance against a field failure.

Use the correct relay socket and a flyback diode on the coil side when the control is solid-state, or the induced spike will eventually take out the ECU. Size the feed fuse to the continuous rating with headroom rather than to the inrush peak, and you avoid nuisance blows without risking the harness. A tidy loom with the right gauge is cheaper than a burned connector.

Wholesale partners book stock against switch relay 3lph range so the shelf never dips before the reorder lands.

Service centres forecast demand for switch relay 3lph range so the fitter works to torque values rather than habit.

Importers standardise on switch relay 3lph range to cut diagnostic time on repeat failures.

The drawing revision behind ws-03-07-s is recorded on the test sheet packed with each carton.

Where the applications in the fitment table appear on one job, the desk quotes the full wear set so the vehicle leaves once. Batch AA4F791E.

Solenoid & coil check

Where a solenoid or coil is fitted, measure resistance at room temperature and compare with the rated value. Rated 220V, 220V50/60. An open or shorted coil means the unit will not actuate and must be replaced.

Use a calibrated meter and compare both terminals; a drift outside tolerance signals a failing coil. Record the reading on the bench sheet so the value is there for the next rebuild.

Coils draw an inrush current far higher than the hold current, and resistance drifts with temperature, so check it cold and warm if the application is critical. Duty cycle matters: a relay that sits energised for seconds is a different load from one that clicks a thousand times a day. Match the duty to the job and the contact will repay you with a long, quiet life.

Volume buyers quote volumes for diaphragm pump and confirm the reference at dispatch.

Parts desks specify diaphragm pump because a documented spec shortens receiving-line QC.

Fleet depots consolidate orders for diaphragm pump so warranty claims stay simple.

Installers fitting this Fuel Pump on the applications in the fitment table get torque and sequence notes from the vehicle manual, packed with the unit.

Reference ws-03-07-s is printed on the housing and again on the carton label so receiving can match it to the order in seconds. Batch AA4F791E.

Bench notes for this application are written by the test crew.

Matching parts are quoted together so wear items ship as a set.

Field teardown photos inform the next revision of the sheet.

Programme notes

Programme note: importers running this unit as a line item standardise on one part number across depots, which shortens warranty handling and makes the reorder a one-line message.

• Forecast holds keep the reorder moving before the shelf dips.
• Batch documentation travels with every carton for audit trails.
• Mixed-SKU pallets are consolidated at the export dock.
• Quarterly demand notes are shared with standing customers.