5.9L Cummins Common Rail Water Pump 2003-2006

Overview

This is an engine water pump for the Ram, Dodge 5.9L Cummins Common Rail diesel (2003-2006). 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 water pump circulates coolant through the block, heads and radiator to carry heat away from the engine. A worn bearing gets noisy, the shaft seal starts weeping coolant, and a failing impeller lets the engine overheat under load. A new OE-spec water pump, with its gasket or seal, restores full coolant flow and reliable engine cooling — best replaced at the first sign of a leak or bearing noise, before it strands you.

Fitment

Fits Ram, Dodge trucks equipped with the 5.9L Cummins Common Rail diesel engine, 2003-2006. Please confirm your engine and year before ordering to ensure correct fitment.

Specifications

• OEM Part Number: 4429404 3802004 3903749 3913432 3802358 3802970 3286277 3802004 3802970 3802971 3920311 3389145 3960342 4089700 3960309
• Interchange / Cross-Reference: 3903749
• Engine: 5.9L Cummins Common Rail
• Year Range: 2003-2006

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.