Cummins N14 Engine Parts – Oil System Section

A reliable lubrication system is at the heart of every Cummins N14 engine, ensuring smooth operation, reduced wear, and extended engine life. Diesel Pro Power supplies a full range of premium aftermarket oil system parts designed specifically for the Cummins N14, including Celect, Celect Plus, and STC models. With over 40,000 satisfied customers worldwide, we are the trusted source for operators who demand durability, precision, and fast global delivery.

Cummins N14 Oil Pumps

Oil Pump for N14 Celect & STC Engines (1991–1993)

This heavy-duty oil pump is engineered for earlier Celect and STC N14 engines manufactured between 1991 and 1993. Built for long service life and consistent oil pressure, it provides reliable lubrication even in demanding operating conditions.

Designed to maintain correct oil pressure at idle and full load
Compatible with multiple CPL configurations for N14 engines
Durable construction for extended use in trucking, industrial, and power generation applications

Oil Pump for N14 Celect Plus Engines (1994 and After)

For later N14 Celect Plus engines, this oil pump ensures precise oil delivery across a wide range of operating conditions. Whether your N14 powers a long-haul truck, industrial machine, or generator set, this pump delivers factory-level performance.

Optimized for Celect Plus electronic fuel control engines
Built to handle higher operating pressures in later N14 designs
Manufactured to meet or exceed Cummins specifications

Oil Pump Gaskets & Seals

Cummins Oil Pump Gasket

A properly sealed oil pump ensures the N14 maintains stable oil pressure without leaks. This premium gasket provides a secure seal between pump and block, minimizing downtime and preventing costly oil loss.

Cummins Oil Seal for Fan Hub

Protect your lubrication system with a quality oil seal designed for the N14’s fan hub assembly. Prevents oil leaks at critical rotating points, ensuring reliable cooling and lubrication.

Oil Filtration Components

Cummins Spin-On Oil Filter

Heavy-duty spin-on design for fast, reliable installation
Dimensions: 4.65" diameter x 11.69" height
Thread size: 2 1/4" – 12 UN
Provides superior filtration to protect bearings, pistons, and turbochargers

Oil Filter Removal Wrench

A robust wrench designed for Detroit Diesel, Caterpillar, and Cummins engines, fitting filters from 4-21/32" to 5-5/32". Essential for quick and safe oil filter replacement during maintenance.

Oil Cooling Components

Cummins Oil Cooler

A key part of the N14 lubrication system, the oil cooler reduces oil temperature to maintain viscosity and prevent overheating. Lower operating temperatures help extend engine and oil life.

Seals for Oil Cooler

Sold in pairs, these seals ensure the oil cooler remains leak-free, preventing cross-contamination and pressure loss.

Cummins Thermostat for Oil Cooler

Temperature rating: 225°F
Ensures oil remains within proper operating range
Improves thermal efficiency in both hot and cold conditions

Oil Pressure & Monitoring

Fuel & Oil Pressure Switch – 5 PSI Make/Break

This precision switch helps monitor critical oil pressure. At 5 PSI, it triggers a make/break signal to protect the engine from low oil pressure damage.

Why Buy Cummins N14 Oil System Parts from Diesel Pro Power

Operators around the globe rely on Diesel Pro Power as their one-stop source for Cummins N14 lubrication system parts. Here’s why:

Global Customer Base – More than 40,000 customers across 180+ countries.
Premium Aftermarket Quality – Every pump, gasket, seal, cooler, and filter is built to meet or exceed Cummins OEM standards.
Comprehensive Catalog – Our Cummins N14 catalog is organized by system, making it easy to find the exact part you need.
Fast Worldwide Shipping – Downtime is expensive; we ship quickly and reliably worldwide.
Expert Technical Support – Our team knows the N14 engine inside and out, offering guidance on CPL matching, fitment, and installation.

Optimized Performance with Diesel Pro Power

A properly maintained oil system ensures your N14 engine delivers its legendary reliability. Whether you’re operating a fleet of trucks, powering heavy machinery, or running industrial generators, Diesel Pro Power provides the pumps, filters, gaskets, seals, and coolers you need for long-lasting performance.

Cummins Oil Cooler

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