Water Pump O Ring for 2011-2015 Peterbilt 365 & More - Dorman 904-5129

This engine water pump O-ring is designed to match the fit, function and performance of the factory O-ring to securely seal the water pump to the engine or to the water pump housing on specified vehicles.

• Ideal solution - designed to securely seal the water pump to the engine or to the water pump housing to prevent leaks when a factory O-ring has failed from fatigue
• Direct replacement - engineered to match the fit, function and performance of the original engine water pump O-ring on specified makes, models and years
• Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience
• Durable construction - designed, manufactured and tested to strict specifications for reliable service

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