0445120127 Common Rail Injector Replacement for Weichai 612630090012
New 0445120127 common rail injector (Bosch 0 445 120 127 reference, Weichai OE 612630090012, related reference 0445120266) for Weichai WP12 and WP10 heavy-duty diesel — Shacman, Sinotruk HOWO, Foton Auman, Beiben, FAW Jiefang, plus XCMG, SDLG and Shantui machines. A Vidishi Auto compatible replacement, up to 2000 bar class, 12-month warranty. Single package 28 x 15 x 15 cm, 2.5 kg gross. MOQ 24 pcs. Wholesale export supply.
Original price was: $130.00.$90.00Current price is: $90.00.
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Product Specifications
| Weight | 2.5 kg |
|---|---|
| Dimensions | 28 × 15 × 15 cm |
| make | |
| model | |
| engine | |
| position |
Product Details
0445120127 Common Rail Injector by the Numbers
Verified identity and fitment data for the complete diesel common rail injector, supplied for the Weichai WP12 and WP10 heavy-duty range.
Each 0445120127 is a common rail injector and a solenoid injector in the CRIN family; the diesel common rail injector class serves Weichai WP12 and WP10 heavy-duty trucks, and the bosch common rail injector reference 0 445 120 127 is shown for interchange only. This 0445120127 diesel injector carries the Bosch 0 445 120 127 reference on the body, so a bosch 0445120127 injector search lands on the same WP12 and WP10 fitment.
Vehicle Compatibility for 0445120127
This complete injector runs the Weichai WP12 and WP10 heavy-duty diesel engines in Chinese heavy trucks and construction machines. Match the engine nameplate and the number on the old injector before ordering.
| Vehicle | Model | Engine | Injector |
|---|---|---|---|
| Shacman / Shaanxi | F2000 / F3000 / X3000 / Delong | WP12 / WP10 | 0445120127 |
| Sinotruk HOWO | A7 / T7H | WP12 / WP10 | 0445120127 |
| Foton Auman | GTL / ETX | WP12 / WP10 | 0445120127 |
| Beiben / North Benz | V3 / NG80 | WP12 / WP10 | 0445120127 |
| FAW Jiefang | J6P / J6L / J6M / J7 | WP12 / WP10 | 0445120127 |
Weichai WP10 injector10 L heavy-duty diesel
WP12 engine familyShacman, HOWO and Auman
Weichai applicationsTrucks, gensets, machines
Most buyers arrive with a 0445120127 injector number alone, so the whole WP12 and WP10 family sits on this page. A weichai wp12 injector on a Shacman F3000, X3000 or Delong tractor is the same assembly as the unit fitted to a HOWO A7 or an Auman GTL — and that same part number also covers the weichai wp10 injector used across the WP10 fleet. The unit also answers the shacman injector, sinotruk howo injector and foton auman injector requests, and the heavy duty truck injector buyer who needs a euro 3 diesel injector replacement for a 612630090012 build. Construction and power-generation machines on WP10 and WP12 use the same unit: XCMG excavators (XE370, XE490) and loaders, SDLG units (LG956, LG968), Shantui dozers (SD22, SD32), concrete pumps and 200-400 kW gensets on WP10D and WP12D.
Fitment verification
- VIN or chassis number — we decode the build record to confirm the engine family.
- Engine code plate — the plate on the block must read Weichai WP12 or WP10, not another family.
- Photo of the old unit — the number stamped on the injector body, so we match the code and not just the engine.
About the 0445120127 Injector
What the complete CRIN unit is, and how it sits in the Weichai fuel system.
What is a common rail injector?
This is the solenoid unit that meters and atomises fuel from the rail into the combustion bowl. The 0445120127 is a complete unit in the Bosch CRIN family: the whole injector, not just a spray tip.
How does a common rail injector work?
The rail holds fuel at pressure and the ECU fires the solenoid, so the needle lifts for a controlled window. On a Weichai WP12 or WP10 engine the valve opens, the spray forms, and the ECU trims each cylinder individually. A worn 0445120127 diesel injector shows up as a weak cone or a seeping seat long before it stops running.
Complete unit versus parts
The injector is the complete assembly; diesel injector parts and fuel injector parts such as the valve and seat sit inside it. The common rail injection system meters fuel through a diesel fuel injector on each cylinder, and a bosch diesel injector reference (0 445 120 127) is a CRIN unit — the whole assembly, not bare common rail injector parts. A common rail diesel injector of this generation leaves the factory as one sealed unit, and we supply it that way.
Technical Specifications
Verified parameters for this CRIN common rail injector, graded at the Weichai WP12 / WP10 platform level. Items the manufacturer does not publish are flagged, not guessed.
- Confirmed — multi-source verified fact
- Reference — interchange or class-level value; cross-check before relying on it
- Not published — the manufacturer does not publish it, and we never invent a number to fill the gap
| Parameter | Value | Data tier |
|---|---|---|
| Part number | 0445120127 (Bosch 0 445 120 127) | Confirmed |
| Interchange reference | 0445120266 / 612640090001 | Reference |
| Weichai OE number | 612630090012 | Reference |
| Injector family | Bosch CRIN (solenoid) | Confirmed |
| Supplied brand | Vidishi Auto — new compatible replacement, not Bosch-branded | Confirmed |
| Injection system | Common Rail (CR) | Confirmed |
| Max injection pressure | up to 2000 bar (CRIN class rating) | Reference |
| Application engine | Weichai WP12 / WP10 heavy-duty diesel | Confirmed |
| Emission | Not published (build-dependent) | Not published |
| Condition | New | Confirmed |
| Warranty | 12 months against manufacturing defects | Confirmed |
| Single package size | 28 × 15 × 15 cm | Confirmed |
| Packaged shipping weight | 2.5 kg per unit — packaging and transport weight | Confirmed |
| Net weight (single injector) | Not published by the manufacturer | Not published |
| Flow rate (cc/min or mg/stroke) | Not published by the manufacturer | Not published |
| Coil resistance (ohm) | Not published by the manufacturer | Not published |
| Per-unit opening pressure | Not published by the manufacturer | Not published |
| Injector correction code | Not published by the manufacturer | Not published |
As a bosch injector built to the Bosch 0 445 120 127 specification, this 0445120127 fuel injector is a complete common rail unit. The common rail injector specifications list the CRIN family, up to 2000 bar, and the 12-month warranty. We bench-check injector flow rate and injector spray pattern; the interchange references 0445120266 and 612640090001 are shown as Reference. Net weight, flow rate, coil resistance, per-unit opening pressure and the injector correction code are left as Not published because sources conflict or the manufacturer does not release them, so only the packaged shipping weight of 2.5 kg is stated. Pressure is a CRIN class rating, not a per-unit calibration, so we state only what we can verify for this fuel injector. Injector identification: the code 0445120127 is stamped on the body, and that is the same identification a diesel injector rebuilder reads before ordering.
Cross-Reference & Interchanges
Need a 0445120127 cross reference or a 0445120127 equivalent? The Bosch CRIN interchange numbers below are the ones buyers match against. All are reference interchanges only.
For an injector cross reference, the Bosch 0 445 120 127 number is the reference and this 0445120127 bosch replacement is a Vidishi Auto compatible unit. Run a 0445120127 cross reference against the etched code, or look for a 0445120127 equivalent, and both resolve to the same CRIN assembly: the Weichai OE 612630090012 plus the related references 0445120266 and 612640090001. Those numbers are published so a buyer can match the correct replacement; we are an independent supplier, not a Weichai or Bosch distributor.
Key Features
Why the 0445120127 CRIN unit is built for Weichai WP12 / WP10 service.
CRIN high pressure injector
Rated to the CRIN common rail class, up to 2000 bar, for precise metering under full load on 12 L and 10 L heavy-duty diesels.
Complete unit, not a tip
The whole solenoid injector is supplied — a direct replacement for the Weichai WP12 and WP10 engine.
Built for duty cycle
Specified for long-haul and construction duty across Shacman, HOWO, Auman, Beiben and FAW fleets.
New and warranted
Supplied new with a 12-month warranty against manufacturing defects.
Compatible brand
Vidishi Auto compatible replacement — reference interchanges only, not a genuine Bosch part.
Precise metering
Solenoid valve design for stable idle and clean combustion after a bench test.
The diesel injector technology here is CRIN solenoid common rail injector technology, a high pressure diesel injector built for 12 L and 10 L heavy-duty diesels. This bosch cri injector uses a solenoid valve injector for precise metering and is a precision diesel injector supplied new. Each unit is a bosch diesel injector reference built to the Bosch CRIN specification, so the same part works in trucks, gensets and construction machines.
Failure Symptoms
Common rail injector symptoms to watch for on a Weichai WP12 or WP10 engine, and the checks that separate a tired unit from a healthy one.
| Symptom | What it usually means |
|---|---|
| injector leakage | An internal leak loses rail pressure between injections and can coke the tip. |
| injector misfire | A weak or seeping unit drops combustion quality on one cylinder at idle and under load. |
| injector failure | Long service wears the valve seat; the unit loses calibration before it stops. |
| black smoke diesel engine | Poor atomisation from a worn spray raises soot and exhaust opacity under load. |
| hard start injector | Low cranking compression on one cylinder or a leaking seat delays start-up. |
| injector fault code | An ECU cylinder-balance or circuit code points to one unit for a bench test. |
| weak spray pattern | A worn cone shows an uneven, narrow spray rather than a clean fan on the tester. |
Two measurements do most of the work: an injector return flow test against the CRIN spec, and a bench spray and seat-leak check. Bad injector symptoms and diesel injector symptoms rarely point to the injector alone — contamination past the filter, and a high-pressure fuel injection pump shedding debris, repeat the same damage, so fix the root cause as well as the unit. Some ECU generations store an injector coding value that must be written after replacement. If you are chasing a cylinder-balance code rather than a mechanical fault, start from the fault code library before pulling the unit.
How to replace common rail injector on a Weichai WP12 / WP10
A bench-side walk-through of injector installation for the 0445120127, from a single injector replacement to a full bench test.
Confirm the code
Match the etched 0445120127 / 0 445 120 127 and the Weichai engine code plate before removal.
Relieve pressure
Depressurise the common rail and isolate the battery before opening the fuel lines.
Remove and inspect
Unbolt the old unit, fit a fresh copper seal, and check the bore and seat for scoring or debris.
Fit to injector torque
Seat the new 0445120127 to the clamp torque spec with a clean seal; never reuse a washer or over-torque the clamp.
Purge and code
Bleed air from the fuel line and write the injector coding value if the ECU generation requires it.
Bench-test
Run the bench test on spray pattern, seat leak and return flow before refitting.
Use an injector removal tool and an injector tester to confirm spray and seat, and torque to the injector torque spec with a fresh copper washer. A common rail injector replacement on a WP12 or WP10 needs a clean high-pressure line and a new seal every time, and the injector installation is not finished until the correction value is written where the ECU requires it. Part numbers and service notes for the family sit under our installation guides.
Warranty & Support
Every 0445120127 unit is covered against manufacturing defects, handled against the batch number on the box.
The 12-month cover runs from the ship date and is handled against the batch number recorded on the box, so a claim is quick to verify.
Contaminated fuel, water in the system, incorrect fitting, or a root fault elsewhere in the fuel system.
Send the batch number and a bench report to open a claim, and the full procedure sits on the Warranty Policy page.
Each unit is logged by batch so a replacement is matched to the exact consignment it came from.
The bosch injector warranty reference is shown only as the Bosch interchange, not as a brand claim, and the cover is issued by us, not by Bosch or Weichai. We are an independent supplier of compatible replacement parts. Returns and remittance follow our returns policy.
Wholesale & Bulk Supply
As a common rail injector supplier we ship to importers, workshops, fleets and injector rebuilders. Send a wholesale RFQ and we reply with a per-unit or bulk quote, from a trial batch to a diesel injector bulk order.
A workshop can start at 24 pcs, and volume tiers are quoted on the same RFQ so you can test before a container.
Send the quantity and destination port and we return price, MOQ and lead time in one message, within 24 hours.
Sample batches and mixed SKU containers are quoted together, so a fleet can trial one family at a time.
Export documentation, packing list and HS code are provided with every consignment, with a tracking reference.
We are an injector distributor of Vidishi Auto compatible parts; a bosch injector manufacturer reference is shown only as the Bosch interchange. For diesel injector wholesale or a diesel injector bulk order we act as your common rail injector supplier and reply with price, MOQ and lead time in one message. Programmes and pricing tiers are listed under wholesale pricing.
Shipping & Packing
Export packing and freight for single boxes through container volumes, quoted per order.
Express courier or air for single boxes and small batches, sea freight for container volumes, all with tracking.
Each unit ships in a 28 x 15 x 15 cm export box at 2.5 kg gross, foam-lined to protect the tip.
Commercial invoice, packing list, HS code documentation and a tracking reference travel with every consignment.
Every diesel injector export consignment ships in a 28 x 15 x 15 cm box at 2.5 kg gross with full export documents, and order status is visible under track order. Lead time is quoted per order because it moves with quantity and freight mode; see shipping information for freight modes and rules.
Buyer Feedback
Field notes from workshops and fleets running the 0445120127 on Weichai WP12 and WP10 engines.
Matched the old 0 445 120 127 on our Shacman F3000 WP12; smooth idle and clean combustion after a bench test. Compatible part, not an original Bosch unit — exactly what we needed for the price.
Two units replaced tired injectors on HOWO A7 tractors; rail pressure restored and smoke dropped. Each unit passed an injector quality check and a diesel injector test before dispatch.
Frequently Asked
Common questions about the 0445120127 common rail injector and ordering a compatible replacement.
Is 0445120127 genuine Bosch?
Can you run a 0445120127 fitment check before I order?
What is the 0445120127 application — which vehicles fit it?
How does a common rail injector work?
What is the 0445120127 minimum order quantity?
Can a diesel injector be repaired?
What engines use the 0445120127 injector?
Is the 0445120127 a complete injector or a component?
What is the 0445120127 injection pressure?
What are the 0445120127 warranty terms?
How is the 0445120127 shipped?
Why buy a Vidishi Auto compatible 0445120127?
Need Help Matching?
Send the engine nameplate and the old injector photo; we confirm the 0445120127 match before you pay.
Instant fitment check — wa.me/8613509025030
Formal quote — [email protected]
Warranty — cover, claims and exclusions for the 0445120127.
Shipping — packing, freight modes and return rules.
For diesel injector technical support, send the engine nameplate and old injector photo; our injector support team confirms the 0445120127 match on WhatsApp before you pay. Full contact routes sit on the contact page and the FAQ. We are an independent supplier of compatible replacement parts built to the Bosch 0 445 120 127 specification.
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