Dorman 926-160 Radiator Coolant Hose O-Ring

Durable Radiator Coolant Hose O-Ring for Chevrolet and GMC Trucks

The Dorman 926-160 Radiator Coolant Hose O-Ring is engineered to provide a reliable seal in the cooling systems of select Chevrolet and GMC heavy-duty trucks. Designed with precision and made from FKM material, this o-ring ensures consistent performance under demanding conditions.

• Material: High-quality FKM for heat and chemical resistance
• Inside Diameter: 1.975 inches for precise fitment
• Outside Diameter: 2.395 inches ensuring proper sealing
• Thickness: 0.21 inches for durability and flexibility
• Shape: Round cross-section optimized for radiator hose connections
• Package includes one radiator coolant hose o-ring

Technical Details and Material Benefits

The Dorman 926-160 o-ring is constructed from FKM (fluoroelastomer), a material known for its excellent resistance to high temperatures, oils, and coolant chemicals commonly found in automotive cooling systems. The round shape and specific dimensions—1.975 inches inside diameter, 2.395 inches outside diameter, and 0.21 inches thickness—are designed to fit securely within the radiator coolant hose assembly. This ensures a tight seal that prevents leaks and maintains system pressure in Chevrolet Sierra 2500 HD, Sierra 3500, Silverado 2500 HD, and Silverado 3500 models, including Classic and HD variants.

Compatible Vehicles and Applications

This radiator coolant hose o-ring is compatible with the following makes and models:

• Chevrolet Sierra 2500 HD and Sierra 2500 HD Classic
• Chevrolet Sierra 3500 and Sierra 3500 Classic
• Chevrolet Silverado 2500 HD and Silverado 2500 HD Classic
• Chevrolet Silverado 3500 and Silverado 3500 Classic
• GMC Sierra 2500 HD and Sierra 3500 HD

Common Issues Addressed by This O-Ring

• Prevents coolant leaks at radiator hose connections
• Maintains proper coolant system pressure
• Resists degradation from heat and chemical exposure
• Reduces risk of engine overheating due to coolant loss
• Ensures long-term sealing performance in heavy-duty trucks

Installation Notes and Tips

When installing the Dorman 926-160 radiator coolant hose o-ring, ensure the mating surfaces are clean and free of debris. Lubricate the o-ring lightly with compatible coolant or lubricant to ease installation and prevent damage. Verify the o-ring is seated evenly within the hose connection to avoid leaks. This part is designed for professional installation on Chevrolet and GMC Sierra and Silverado heavy-duty models.

Quality Assurance and Warranty

Dorman manufactures the 926-160 o-ring to meet or exceed OEM specifications for durability and fitment. The use of FKM material provides enhanced resistance to heat and chemical exposure, contributing to reliable long-term performance. This product is backed by Dorman's standard warranty coverage, ensuring quality and customer confidence.