BH4Q85R8 Injection Pump
BH4Q85R8 Injection Pump. Aftermarket injection pump supplied by Vidishi Auto. Compatible with listed vehicles. MOQ 1 piece. WhatsApp bulk pricing.
$124.00
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Product Specifications
Product Details
BH4Q85R8 — Overview
The BH4Q85R8 is an aftermarket injection pump supplied under the Vidishi Auto brand, built as a direct-fit replacement for the reference reference BH4Q85R8. It is a drop-in unit for the applications listed in the fitment section.
We stock this unit for wholesale, fleet and retail repair supply, with batch traceability on every order.
Fitment — BH4Q85R8
Compatible with the following listed applications. Always confirm the BH4Q85R8 by matching the OE number on the part label and the engine code on the vehicle data plate.
- Yangdong Y490D / YSD490D 4-cylinder diesel
- Yuchai 4108 series 4-cylinder diesel
- agricultural tractors and machinery
- diesel generator sets
- construction equipment and light commercial trucks
Engine codes: Yangdong Y490D / YSD490D, Yuchai 4108 series, 4-cylinder inline diesel · Model years: confirm by engine model (mechanical inline pump).
Specifications
| Part number | BH4Q85R8 |
| Product type | Injection Pump |
| Condition | New |
| Brand | Vidishi Auto |
| MOQ | 1 piece |
| Model years | confirm by engine model (mechanical inline pump) |
| Fuel Type | Diesel |
| Fitment Type | direct-fit, bench-calibrated |
| Configuration | 4-cylinder inline mechanical pump |
| Governor | mechanical / electric actuator with speed governor |
| Max Rpm | 3200 rpm |
| Housing | cast iron |
| Net Weight | approx 8.5 kg |
Values shown are the published specifications for this BH4Q85R8. Confirm critical values against the OE part before bulk order.
Common Failure Symptoms
Before replacing, confirm the fault. Signs that point to a failing BH4Q85R8 injection pump include:
- Hunting or irregular idle from governor wear
- Power surging or droop under load
- Hard cold starting and white smoke on crank
- Low delivery volume and loss of power from worn plungers
- Delivery-valve leakage causing uneven running and after-run
These symptoms can also arise from related components, so verify the fuel pressure and electrical supply before fitting a new unit.
Installation Notes
Set static spill timing: rotate to TDC compression on cylinder 1 and align the pump drive-gear timing marks to the flywheel pointer. Prime with clean diesel until air clears at the high-pressure unions, torque the delivery-valve holders evenly, and top the governor oil to spec before first crank.
Cross Reference — BH4Q85R8
The BH4Q85R8 injection pump is interchangeable with, and replaces, the following reference numbers:
- BH4Q85R8
- 4QD002
- YSD4BD
- 4QD431
- 4QD420
- 4QD605
- 4Q09
- 4Q425
- 4QD4
Reference: this is a compatible replacement part supplied under the Vidishi Auto brand. It is not a genuine OEM product and is not sold as, or endorsed by, the original manufacturer. Trademarks are the property of their respective owners and are used only to describe compatibility.
Product Gallery
Frequently Asked Questions
Is the BH4Q85R8 a genuine OEM part?
It is an aftermarket replacement injection pump supplied under the Vidishi Auto brand, built to the Kangda BH4Q85R8 / 4QD002 specification. It is not sold as a genuine part of any engine maker.
Which engines use the BH4Q85R8?
It fits Yangdong Y490D / YSD490D and Yuchai 4108 class four-cylinder diesels used on tractors, generator sets and light commercial vehicles.
How many cylinders is this pump?
It is a four-cylinder inline diesel injection pump with a mechanical governor, rated to about 3200 rpm.
What does the BH4Q85R8 replace?
It replaces the pump codes BH4Q85R8 / 4QD002 and the related YSD4BD, 4QD431 and 4QD420 numbers. Match by the code on your old pump.
What are the signs this pump is worn?
Hunting idle, power surging under load, hard cold starting with white smoke, and low delivery volume from plunger or delivery-valve wear.
How do I confirm the right pump before ordering?
Send a clear photo of the nameplate and the engine model from your old pump and we will confirm the correct variant and timing data.
Wholesale & Bulk Supply
We supply the BH4Q85R8 to wholesale distributors, fleet operators and repair shops. MOQ starts at 1 piece; container and mixed orders are available.
As an aftermarket injection pump supplier we support OEM-coded ordering, part-number matching and drop-shipment. Contact our team on WhatsApp for lead times and tiered pricing.
Applications & Search Terms
Buyers and workshops searching this unit typically use terms such as fuel pump, fuel pump replacement cost, fuel pump relay, fuel pump replacement, fuel pump symptoms, fuel pump control module, fuel pump fuse, fuel pump assembly.
Across catalogues the same unit also appears under these part numbers and search terms:
fuel pump cost replacement, fuel pump removal tool, fuel pump repair, fuel pumps, fuel pump module, fuel pump relay replacement, injection pump, fuel pump driver module, fuel pump lock ring tool, fuel pump of car, fuel pump cost, fuel pump for car, fuel pump fusible, fuel pump tester, fuel pump problems, fuel pump regulator, fuel pump relay locati0n
Typical applications include the listed vehicles model years confirm by engine model (mechanical inline pump).
Quality & Warranty
Every injection pump is inspected before dispatch and covered by a 12-month functional warranty against manufacturing defects. Each unit is batch-traceable by part number BH4Q85R8.
Shipping & Handling
We ship injection pump worldwide by air, sea and courier. MOQ 1 piece. Standard protective packaging; fuel-system parts are drained and sealed for transport. Ask for the current lead time and freight quote on WhatsApp.
Ready to order the BH4Q85R8?
Send the part number BH4Q85R8 and your quantity for a quotation. Our team replies on WhatsApp within one business day.
Fitment Support
Not 100% sure the BH4Q85R8 fits? Send the VIN or the OE number from your old part and we will confirm the correct injection pump before you order. Technical support is free.
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