Genuine Bosch CP9L4 Fuel Injection Pump – Cummins QSK38 37.7L

OEM QUALITY WITHOUT THE CUMMINS BOX.

Don't let the lack of red paint fool you. Bosch is the OEM manufacturer of this fuel pump for Cummins. This is a brand-new, Genuine Bosch CP9L4 banked-piston high-pressure fuel injection pump—the same OEM-level product you would find supplied through Cummins, just in a Bosch box.

If you're replacing the high-pressure fuel pump on a Cummins QSK38 37.7L, this isn't an aftermarket copy or questionable remanufactured unit. It's a brand-new Genuine Bosch pump manufactured by an Original Equipment supplier.

The CP9L4 meters and supplies the high-pressure fuel required by the QSK38 common rail injection system. Consistent fuel pressure and precise delivery are critical for proper starting, efficient combustion, power, emissions performance, and overall engine reliability.

Why Buy the Genuine Bosch Pump?

• OEM Manufacturer – Bosch is an Original Equipment supplier of this pump for Cummins.
• Same Pump, Different Box – This is the same OEM-level product you would find supplied in a Cummins box, supplied here as a Genuine Bosch component.
• Brand New – Not Remanufactured – Genuine new Bosch production.
• NO CORE DUE – No core charge, no old pump to return, and no waiting for a core to be inspected or credited.
• Direct Cummins QSK38 Application – Designed for Cummins QSK38 37.7L engines. Always verify your existing part number before ordering.
• OEM Equivalence Confirmation Available – Documentation confirming product equivalence is available upon request.

Built for Engines That Need to Stay Online

The Cummins QSK38 isn't powering your grocery getter. These engines are found in applications where downtime gets expensive fast.

Whether you're keeping fracking and oilfield equipment, power generation, locomotives, mining equipment, or other heavy industrial machinery operating, Momentum Worx understands that getting the right part—and getting it quickly—matters.

That's why we're supplying brand-new Genuine Bosch QSK fuel system components with no core due.

Application

Cummins QSK38 – 37.7L

Pump Specifications

Manufacturer: Bosch
Condition: Brand New
Pump Type: CP9L4 Banked Piston High-Pressure Fuel Injection Pump
Type Formula: CR/CP9L4/R755/10-2378915S
Bosch No.: BOS91461
Gross Weight: 172.05 lb
Core Due: NONE

Cross Reference / Interchange Numbers

Replaces or crosses to the following part numbers:

• 0 986 437 916
• 0986437916
• 2870939
• 2870939NX
• 2881171
• 2881171NX
• 2888748
• 2888748NX
• 2888797
• 2888797NX
• 2888797PX
• 2888797RX
• 4306516
• 4306516NX
• 4306516RX
• 4927606
• 4927606NX
• 4964217
• 4964217NX
• 4998821
• 4998821NX
• 5471752
• 5471859
• F 00B C00 018
• F 00B C00 052
• F 00B C00 124
• F 00B C00 125
• F 00B L0P 035
• F00BC00018
• F00BC00052
• F00BC00124
• F00BC00125
• F00BL0P035

Bottom line: If you're comparing this Bosch CP9L4 to a pump in a Cummins box, you're not stepping down to an aftermarket replacement. You're buying Genuine Bosch OEM-level quality—brand new, with no core due and a full two-year warranty.