Dorman 926-424 Engine Coolant Pipe O-Ring Kit

Reliable Engine Coolant Pipe O-Ring Kit for Chevrolet and GMC

The Dorman 926-424 Engine Coolant Pipe O-Ring Kit provides a precise seal for engine coolant pipes in select Chevrolet and GMC trucks and vans. Designed with durable EPDM material, this kit ensures a secure fit and long-lasting performance for your vehicle's cooling system.

• Includes 2 round EPDM O-rings for engine coolant pipes
• Inside diameters of 25 mm and 33 mm for versatile fitment
• Thickness of 2.6 mm for effective sealing
• Outside diameters of 29.6 mm and 37.6 mm to match OEM specifications
• Compatible with multiple Chevrolet and GMC heavy-duty models

Durable EPDM Material and Precise Dimensions

This engine coolant pipe O-ring kit features EPDM (ethylene propylene diene monomer) rubber, known for its resistance to heat, ozone, and coolant chemicals. The kit contains two O-rings with round cross-sections, designed to fit engine coolant pipes with inside diameters of 25 mm and 33 mm. The thickness of 2.6 mm and outside diameters of 29.6 mm and 37.6 mm ensure a tight seal that prevents leaks and maintains system pressure.

Compatible Chevrolet and GMC Models

The Dorman 926-424 O-ring kit is compatible with a range of Chevrolet and GMC vehicles, including Express 2500 and 3500 vans, Savana 2500 and 3500 vans, and heavy-duty Sierra and Silverado trucks such as the Sierra 2500 HD, Sierra 3500 HD, Silverado 2500 HD, and Silverado 3500 HD models. This makes it a suitable replacement part for maintaining the cooling system integrity on these vehicles.

Common Applications and Problem Solving

• Sealing engine coolant pipes to prevent coolant leaks
• Replacing worn or damaged O-rings causing coolant loss
• Maintaining proper coolant system pressure and flow
• Preventing overheating due to coolant system failure
• Ensuring reliable operation of heavy-duty Chevrolet and GMC trucks and vans

Installation Notes and Tips

Before installation, ensure the engine is cool and the cooling system is depressurized. Remove old O-rings carefully to avoid damaging the coolant pipe surfaces. Clean the sealing surfaces thoroughly to remove debris and corrosion. Lubricate the new EPDM O-rings lightly with coolant or a compatible lubricant to ease installation and prevent twisting. Verify the correct O-ring size matches the pipe diameter before final assembly.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 926-424 Engine Coolant Pipe O-Ring Kit undergoes quality checks to ensure durability and reliable sealing performance. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship to provide confidence in your purchase.