5.9L Cummins Common Rail Fan Clutch 1989-2012

Overview

This is an engine cooling fan clutch for the Ram, Dodge 5.9L Cummins Common Rail diesel (1989-2012). Built to OEM specification and engineered as a direct-fit replacement for a professional-grade 5.9L Cummins Common Rail repair or service. Every order ships fast and is backed by our support team.

What It Does & How It Helps

The fan clutch decides how hard the engine fan pulls air through the radiator, charge-air cooler and condenser. A diesel makes far more heat under load than a gas engine, and towing or grades are exactly when a tired clutch gives up: the viscous fluid leaks down or the bearing wears, the fan freewheels, and coolant and intake temperatures climb the moment road speed drops. The opposite failure is a clutch locked permanently engaged, which roars constantly, robs power and hurts fuel economy. A correct replacement restores full commanded airflow at temperature and lets the fan disengage again when it should.

Fitment

Fits Ram, Dodge trucks equipped with the 5.9L Cummins Common Rail diesel engine, 1989-2012. Please confirm your engine and year before ordering to ensure correct fitment.

Specifications

• OEM Part Number: 4429639 3910739 BD35-12DU8A
• Engine: 5.9L Cummins Common Rail
• Year Range: 1989-2012

Quality & Service

Fast shipping on in-stock orders. Free shipping on orders over $70 to the lower 48 states. Backed by Core Diesel Parts — your source for 5.9L Cummins Common Rail diesel parts.