4093766 6BT Engine Fuel Injection Pump
High-performance diesel fuel injection pump designed for reliable
operation and optimal fuel delivery.
Product Specifications
| Product Name | Fuel Injection Pump |
| Part Number | 4093766 |
| Brand Name | JIAJUE |
| Condition | Brand New |
| Availability | Rich Stock |
| Approximate Weight | 11KG |
| Size (for 1pc) | 40cm x 40cm x 40cm |
| Delivery Methods | DHL FedEx TNT UPS |
| Warranty | 3 months |
| Shipment | Dispatched within 24-48 hours |
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Frequently Asked Questions
- How do I install my Fuel Injection Pump after purchasing it?
Please refer to the "Step-by-Step Installation Guide" on our
product details page, which contains detailed installation
instructions for the 387-9427 injection pump. - What precautions should I take before installing my Fuel Injection
Pump?
System flushing is crucial! Before installing the new pump, the
entire fuel system (tank, lines, and rail) must be cleaned to
remove metal debris from the old failed pump. - Does this pump include the Solenoid Valve?
Yes, our 319-0677 comes fully assembled with a pre-tested solenoid. - Is my machine compatible with this part number of Fuel Injection
Pump?
If you're not sure if this fits your machine, please send us your
Engine Serial Number (ESN) for free verification. - How long will it take to receive my package after I make the
payment?
This depends on your country and region, and the customs clearance
time in your country. Please contact us with your address and
postal code so we can check shipping costs and estimate delivery
time for you.
Step-by-Step Installation Guide
Pro-Tip: Since the pump works within the HEUI system, ensure your engine
oil is fresh and of the correct viscosity (e.g., 15W-40). Dirty oil
will cause the pump to fail prematurely as it relies on oil
pressure to actuate.
1. System Decontamination (System Flush)
Before removing the old pump, drain and flush the fuel tank and
fuel lines. Metal shavings from a failed pump can circulate and
instantly destroy your new unit.
2. Inspect the Transfer Pump & Filters
Replace both the primary and secondary fuel filters. Ensure you use
high-efficiency (2-micron) filters. Inspect the fuel transfer pump
for wear; if it's weak, the high-pressure pump won't receive enough
fuel.
3. Oil Quality Check
Change the engine oil and oil filter. HEUI pumps use engine oil to
create high-pressure fuel injection. Dirty or incorrect viscosity
oil (e.g., using 10W-30 instead of 15W-40 in high temps) will cause
immediate performance issues.
4. Lubrication on Install
Apply clean engine oil to the O-rings and the pump drive gear.
Warning: Never dry-start. Fill the pump with clean diesel through
the inlet before connecting the lines.
5. Torque Sequence
Tighten the mounting bolts in a cross-pattern to the manufacturer's
specified torque (refer to C7/C9 service manual).
Troubleshooting Guide
| Issue | Possible Cause | Solution |
| Engine Won't Start | Air trapped in the fuel lines | Bleed the fuel system thoroughly |
| Low Fuel Pressure | Clogged fuel filters or a leaking SCV (Suction Control Valve) | Replace filters; inspect the SCV for debris |
| Black Smoke / Power Loss | Contaminated fuel causing plunger wear | Drain fuel tank; use high-quality diesel |
| Loud Knocking Noise | Improper timing or loose mounting bolts | Re-calibrate the timing and check bolt torque |
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