Cummins N14 Engine Parts – Injector Section

The Cummins N14 is a legendary heavy-duty diesel engine known for its strength, dependability, and long service life. One of the most important systems that keeps the N14 operating efficiently is its fuel injection system. Injectors are responsible for atomizing fuel, ensuring proper combustion, and maintaining the power and fuel economy operators expect from this engine.

At Diesel Pro Power, we carry high-quality rebuilt injectors, injector repair kits, and tappet assemblies designed specifically for the Cummins N14. All injectors are carefully remanufactured to OEM standards, tested for performance, and available for worldwide shipping.

Rebuilt Injectors for Cummins N14 Engines

Every Cummins N14 engine requires six injectors, and using the correct injector for your CPL (Control Parts List) is critical to proper performance. Below is a breakdown of the injector options we carry for this model.

Cummins N14 Celect Injector – Rebuilt

• Designed for Celect electronic engines only

• Electronically controlled injectors that work in conjunction with the ECM

• Provide precise timing, smooth idle, and fuel efficiency

• Recommended for operators running Celect models in marine, industrial, or power generation applications

Cummins N14 Injector – Rebuilt (CPL 2398)

• Built specifically for CPL 2398 applications

• Rebuilt to OEM specifications for dependable performance

• Ensures correct fuel delivery and spray pattern for this calibration

• Ideal for fleets or equipment that must adhere to CPL-specific requirements

Cummins N14 Injector – Rebuilt (Multiple CPL Coverage)

• Compatible with the following CPLs: 1809, 1844, 1852, 1896, 1987, 2026, 2306, 2388, 2492, 4260, 4376

• A versatile injector covering a wide range of N14 configurations

• Ensures correct fuel delivery for each calibration listed above

• Tested for opening pressure, leakage, and spray atomization to guarantee performance

Cummins N14 Injector – Rebuilt (CPL 1833, 2590)

• Designed for CPL 1833 and CPL 2590 engines

• Maintains consistent combustion across all six cylinders

• Recommended for operators who want OEM-level reliability at a cost-effective price point

• Precision-tested to ensure durability in marine and industrial duty cycles

Cummins N14 Injector Repair Kit

For operators looking to extend the life of their current injectors, the Cummins N14 Injector Repair Kit offers an affordable solution. Instead of full replacement, this kit provides the necessary components to restore injector function.

Benefits of using repair kits:

• Cost-effective option for maintaining injectors in good condition

• Helps fix minor wear issues like leaking or poor spray patterns

• Quick turnaround for mechanics and operators

• Compatible with standard N14 injectors, ensuring wide usability

Cummins N14 Tappet Assembly

The tappet assembly, also known as a cam follower, plays a critical role in the injector system by transferring motion from the camshaft to the injector plunger. Over time, tappets can wear, leading to poor injector performance or premature damage to related components.

Key advantages of replacing tappet assemblies:

• Maintains smooth injector actuation

• Prevents camshaft wear and injector misfiring

• Ensures reliable timing and consistent fuel delivery

• Recommended during injector overhauls or top-end service

Choosing the Right Injector for Your Cummins N14

Because the N14 was built in multiple variations, it’s important to select injectors based on your engine CPL number. The CPL defines the calibration and compatibility for each engine.

• Celect Injectors – Required for electronically controlled Celect and Celect Plus engines

• CPL-Specific Injectors – Guarantee proper fit, timing, and spray pattern for each configuration

• Repair Kits and Tappets – Support long-term injector health and fuel system performance

When in doubt, verify your CPL before ordering to ensure compatibility.

Why Choose Diesel Pro Power

• Trusted by 40,000+ satisfied customers worldwide

• Fast global shipping ensures you get parts wherever you operate

• Expert support to help match the correct injector to your CPL

• Rebuilt injectors tested for OEM-level performance and durability