204-4944: Caterpillar HEUI High Pressure Oil Pump 204-4944 | Actuating Pump for CAT C7/C9 – Fits D6R 973C
Product Details
| **Exact OE Fitment** – Replaces: | 10R-3145 / 10R-8900 / 189-5184 / 204-4944 / 204-4945 / 254-4357; Cross-refers To 319-0678, 319-0676, 254-4358, 304-0677, 295-4777, 228-5898 And 191-3517. | **Precision HEUI Actuation**: | Supplies Stable High Oil Pressure To Drive HEUI Unit Injectors For Precise Injection Timing And Metering. |
|---|---|---|---|
| **Wide C7/C9 Coverage**: | Fits CAT 3126E, C7 And C9 Engines In Excavators (324D–336D), Tractors (D6R, D7R), The 973C Loader And C7/C9 Truck Engines. | 100% Bench Tested: | Every Unit Pressure- And Flow-tested Before Shipment; Sealing Surfaces Protected For Safe Handling. |
| Ready To Install: | OEM-spec Mounting, Hardened Gears And Seals Per OE Design. | Full After-Sales Support: | 3-month Warranty, Worldwide Shipping And Responsive Technical Support. |
| Highlight |
Caterpillar HEUI oil pump 204-4944,CAT C7 C9 actuating pump,D6R 973C high pressure pump |
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Product Description
204-4944: Caterpillar HEUI High Pressure Oil Pump 204-4944 | Actuating Pump for CAT C7/C9 – Fits D6R 973C
This HEUI high-pressure oil pump (actuating pump) is a high-quality aftermarket replacement for Caterpillar C7 and C9 HEUI fuel injection systems, including 3126E-based applications. It replaces OE part number 204-4944, cross-referenced to 191-3517. The pump builds and maintains the high oil pressure required to actuate HEUI unit injectors, delivering precise injection timing and metering for reliable starting, stable idle and full rated power. Hardened pumping gears and precision-machined housing stand up to sustained high-pressure operation, with OEM-spec mounting and sealing surfaces for a leak-free, bolt-on fit. Every unit is bench-tested for pressure and flow before shipment. Fits the Caterpillar D6R track-type tractor, 973C track loader, Challenger tractors and 3126E/C9 truck engines. Export-packed, 12-month warranty and responsive technical support. Aftermarket replacement part — not a genuine Caterpillar product. "Caterpillar" and "CAT" are trademarks of their respective owners, used for reference only.
We are a professional manufacturing factory dedicated to diesel engine spare parts. Our core product line covers diesel fuel injectors, injector nozzles, fuel injection pumps and complete injector repair kits. Backed by steady in-house stock, rigorous quality inspection and direct factory pricing, we partner with global wholesalers, maintenance workshops and machinery enterprises. We deliver premium reliable spare parts, fast lead time and all-round one-stop export service. We warmly welcome your inquiries and long-term business cooperation.
| # | Question | Answer |
|---|---|---|
| 1 | Is this a genuine Caterpillar part? | No, it is an aftermarket replacement. |
| 2 | Which engines does it fit? | CAT C7 & C9 engines (3126E). |
| 3 | Which OE numbers? | 10R-8900, 204-4945, 254-4357… |
| 4 | Is it new or remanufactured? | New or reman; bench-tested before shipping. |
| 5 | Does it need coding after install? | No. This pump needs no coding. |
| 6 | What warranty do you offer? | 12-month warranty on defects. |
表格
| Part No. | OE Cross Reference | Type / Reman | Engine Fitment | Key Applications |
|---|---|---|---|---|
| 10R-3145 | 254-4358 · 254-4357 · 10R-3144 | HEUI HP oil pump · Reman | C7 · C9 | 324D, 325D, 330D, M325D MH |
| 10R-8900 | 319-0678 | HEUI actuator pump | C7 · C9 | E330C, E330D, 336D, E324D, D6R, D7R |
| 189-5184 | —(待确认) | HEUI fuel injection pump | C7 · C9 | E330D |
| 204-4944 | 191-3517 · 204-4944R | HEUI HP oil pump | C7 · C9(3126E) | D6R, 973C, Challenger, 3126E trucks |
| 204-4945 | 319-0676 | HEUI actuator pump | C-9 | 330C(FM/L/MH/LN),TK711–TK732,12H |
| 254-4357 | 304-0677 · 295-4777 · 228-5898 · 10R-8899 | HEUI HP oil pump · Reman 10R-8899 | C7(2004–2009) | 324D, 325D, 330D, 328D LCR, C7 trucks |
Product Highlights
204-4944: Caterpillar HEUI High Pressure Oil Pump 204-4944 | Actuating Pump for CAT C7/C9 – Fits D6R 973C This HEUI high-pressure oil pump (actuating pump) is a high-quality aftermarket replacement for Caterpillar C7 and C9 HEUI fuel injection systems, including 3126E-based applications. It replaces ...
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