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SKU:
NLT2S00836
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High-Pressure Fuel Injection Pump 5398557 for Cummins ISB 6.7L Diesel
$567.39
In Stock
$567.39
Sale price
$567.39
Regular price
This high-pressure diesel injection pump is intended for Cummins ISB 6.7L engines using the matching 5398557 fuel-system configuration. It supplies pressurized fuel to the common-rail injection system.
Estimated delivery between
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- Cummins ISB 6.7L diesel engines — match original pump 5398557
- Cab-and-chassis truck installations from 2010 onward — verify engine serial and emissions configuration
Product Overview
High-pressure pumps can develop internal wear or fail to meet commanded rail pressure. Hard starting, stalling or low power can also be caused by filters, supply pumps, sensors or injector leakage, so fuel-pressure diagnosis comes first.
Cummins engines use multiple high-pressure pump designs. Compare the pump body, gear or drive arrangement, fuel ports, emissions generation and the engine serial number.
Key Features & Performance
- Diesel common-rail high-pressure pump
- Reference 5398557
- Engine-serial-specific fuel injection system
Replaces / Cross-References
- 5398557
What Is Included
One replacement component or assembly, unless the supplier package specifies otherwise.
Fitment Notes
The part number should be matched to the pump removed from the engine or the engine serial catalog. Fuel-system cleanliness is essential during installation.
Common Reasons for Replacement
- Insufficient rail pressure from failed pump
- Hard starts after high-pressure diagnosis
- Metal contamination or confirmed pump wear
Frequently Asked Questions
Is this an OEM part? No. Unless specifically identified otherwise, this is an aftermarket replacement or accessory. Brand names and part numbers identify the intended application, not manufacturer authorization.
How do I confirm fitment? The part number should be matched to the pump removed from the engine or the engine serial catalog. Fuel-system cleanliness is essential during installation.
Part Summary
keywords: High-Pressure Fuel Injection Pump 5398557 for Cummins ISB 6.7L Diesel, 5398557, Cummins ISB 6.7L diesel engines, Cab-and-chassis truck installations from 2010 onward, Insufficient rail pressure from failed pump, Hard starts after high-pressure diagnosis
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.