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Ca-terpillar 557-7637 C9 HEUI Fuel Injector for Perkins 1506 Diesel Engines
Basic Properties
Trading Properties
| OEM Part No.: | 557-7637 | Reman Interchange: | 459-8473 / T400726 / T434154 / T434154R |
|---|---|---|---|
| Injector Type: | H1315B HEUI Hydraulic Electronic Unit Injector | Engine Fitment: | Selected Ca-terpillar C9 Diesel Engines |
| Ready To Install**: | Direct-fit After Compatibility And Calibration Confirmation | Full After-Sales Support: | 6–12-month Warranty, Technical Support And Replacement Service For Confirmed Manufacturing Defects |
| Highlight | Caterpillar HEUI fuel injector,Perkins 1506 diesel injector,Caterpillar fuel injection system |
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Ca-terpillar 557-7637 C9 HEUI Fuel Injector for Perkins 1506 Diesel Engines
Product Description
The 557-7637 is a HEUI hydraulic electronic unit injector designed for selected Ca-terpillar C9 and Perkins 1506-series diesel engines. It provides accurate fuel metering, stable atomization and wear-resistant performance, helping restore engine power, improve fuel efficiency and maintain smooth operation. It is commonly used in selected generator sets, industrial engines and heavy-equipment applications. Exact equipment fitment must be confirmed using the original injector number, engine serial number and calibration.
Available from MOQ 1 pc, with fast worldwide shipping and a 6–12-month warranty, it provides a reliable and cost-effective replacement option for compatible OEM applications.
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 | Which engines? | Selected Ca-terpillar C9 and Perkins 1506-series engines. |
| 2 | New or reman? | New and remanufactured options are available. |
| 3 | OE interchange? | 459-8473, T400726 and T434154. |
| 4 | Warranty? | 6–12 months for confirmed quality issues. |
| 5 | Worldwide shipping? | Yes, by DHL, FedEx, UPS, air or sea freight. |
| 6 | Plug-and-play? | Direct-fit after confirming the ESN and calibration. |
| Part No. | Interchange No. | Engine Fitment | Typical Applications | Notes |
|---|---|---|---|---|
| 387-9434 | 293-4071, 328-2573; Reman: 10R-7221, 20R-8063 | Ca-terpillar C9 | D6R, D6T and D7R tractors; 511 and 2290 track feller bunchers | H1315B HEUI; 1.7 SF calibration family. |
| 387-9435 | Reman: 20R-8427 | Ca-terpillar C9 | Selected C9 truck-engine applications | H1315B HEUI; 2.54 SF calibration family. |
| 387-9436 | Reman: 20R-8068 | Ca-terpillar C9 | C9 generator sets and marine engines | H1315B HEUI; 2.2 SF calibration family. |
| 387-9438 | 293-4067, 328-2577; Reman: 10R-4764, 20R-8060 | Ca-terpillar C9 | Selected C9 truck-engine applications | H1315B HEUI; 1.96 SF calibration family. |
| 459-8473 | T400726, T434154, 557-7637 | Ca-terpillar C9 and selected Perkins 1506-series engines | Generator sets, industrial engines and selected heavy equipment | Cross-reference is application-specific; verify the ESN and calibration. |
| 553-2592 | 387-9433, 557-7633, 572-0119; Reman: 10R-7222, 20R-1917, 20R-8968 | Ca-terpillar C9 | 330D/336D excavators, 140M/160M graders, 814F II/815F II/816F II equipment and 637G scrapers | H1315B HEUI; verify the injector calibration. |
| 557-7633 | 387-9433, 553-2592; Reman: 20R-8968 | Ca-terpillar C9 | 330D/336D/340D excavators, 973C loader, 140M/160M graders, compactors, scrapers and industrial equipment | Current H1315B injector family; 1.96 SF calibration. |
| 557-7637 | 459-8473, T400726, T434154 | Ca-terpillar C9 and selected Perkins 1506-series engines | Generator sets, industrial engines and selected excavator applications | Official equipment fitment is not listed; confirm the ESN and original number. |
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