Product Specifications:
The 294000-0039 (OE Cross-Ref: 8-97306044-9 / 370-8363 / 20R-4783) upgraded remanufactured aftermarket fuel injection pump is precision-rebuilt to permanently eliminate severe rail pressure drops and hard-starting failures across your commercial truck and construction machinery fleet. Completely overhauled using industrial-grade thermal-resistant plungers, brand-new internal seals, and an updated Suction Control Valve (SCV), this high-pressure supply pump delivers factory-new durability at a fraction of the cost. Every single unit is strictly Tested on a DCI Bench to verify exact fuel metering and stable high-pressure delivery under extreme load. Engineered as a pre-calibrated assembly, it guarantees a seamless Plug & Play installation where no dealer coding is required, restoring your Isuzu F Series, N Series 4HK1 5.2L, Hitachi Excavator, and Caterpillar C4.4 engines to peak operating efficiency.
📊 Part Number Cross Reference
(Data verified via global catalog search – Extensive Interchangeability)
| Manufacturer Ref (Standard) | Original Equipment (Isuzu / Hitachi / Cat) |
|---|---|
| 294000-0039 / 294000-003# | 8-97306044-9 / 8973060449 / 8-97306044-8 / 8973060448 |
| 294000-0030 / 294000-0031 / 294000-0032 | 8-97306044-0 / 8-97306044-1 / 8-97306044-2 / 8-97306044-3 / 8973060440 / 8973060441 / 8973060442 / 8973060443 |
| 294000-0033 / 294000-0034 / 294000-0035 | 8-97306044-4 / 8-97306044-5 / 8-97306044-6 / 8-97306044-7 / 8973060444 / 8973060445 / 8973060446 / 8973060447 |
| 294000-0036 / 294000-0037 / 294000-0038 | 370-8363 / 3708363 / 20R-4783 / 20R4783 |
🚛 Fits Applications (Engine & Vehicle)
(Verified application list)
| Make | Model / Application | Engine Size | Year | Engine Code & Specs |
|---|---|---|---|---|
| Isuzu | F Series | 5.2 d | Heavy-Duty | 4HK1, 4HK1-TCC, 4HK1-TCS, FRR, FSR, FTR, FVR, FSS (148-175 bhp) |
| N Series | 4HK1, 4HK1-TCC, 4HK1-TCS, NPR, NQR, NRR (148-175 bhp) | |||
| Hitachi | Excavator | Heavy-Duty | Heavy-Duty Common Rail Diesel | |
| Caterpillar | Heavy-Duty Machinery | C4.4 |
👨🔧 Tech Notes & Installation Guide (FAQ)
Q: Why do heavy-duty repair shops order remanufactured 294000-0039 fuel pumps in multi-unit sets alongside replacement injectors?
A: When an aging supply pump fails on a 4HK1 or C4.4 engine, contaminated fuel or fine metallic particles often compromise the entire common rail system across multiple fleet vehicles. Taking advantage of our wholesale tiered pricing to overhaul your fuel system in one scheduled service protects new injectors from secondary contamination and slashes fleet maintenance costs.
Q: Does this remanufactured 294000-0039 (8-97306044-9 / 20R-4783) injection pump require manual dealer ECU coding?
A: No external dealer programming is required. Every remanufactured pump assembly and its new Suction Control Valve are dynamically calibrated on an advanced DCI test bench to match factory flow curves, enabling your truck or excavator ECU to self-adapt for a direct plug-and-play installation.
Q: Expert Mechanic Tip: What mandatory step must be completed before cranking a newly installed 294000-0039 supply pump?
A: Turning over a remanufactured high-pressure pump without internal fuel lubrication or leaving old metallic swarf in the feed pipes will seize the precision plungers within seconds. Before initial ignition, you must thoroughly flush the fuel tank, common rail, and supply lines, fit a brand-new primary filter, and manually prime the pump housing until all air pockets are purged.
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⚖️ Legal Disclaimer
Part numbers, OE numbers, and brand names mentioned above are for reference and identification purposes only. This product is a compatible aftermarket replacement part and is NOT manufactured, sponsored, or affiliated with the original equipment manufacturers.
