Dorman 926-165 Radiator Coolant Hose O-Ring

Durable Radiator Coolant Hose O-Rings for Ford Super Duty

The Dorman 926-165 Radiator Coolant Hose O-Ring set is designed to provide reliable sealing performance for Ford F-250 Super Duty and F-350 Super Duty models. Manufactured from FKM material, these O-rings ensure resistance to heat and coolant fluids, maintaining system integrity under demanding conditions.

• Constructed from high-quality FKM material for chemical and heat resistance
• Round shape design for optimal sealing in radiator coolant hose connections
• Inside diameters of 0.984 inches and 1.859 inches to fit multiple hose sizes
• Outside diameters of 1.262 inches and 2.137 inches for precise fitment
• Thickness of 0.139 inches ensures durability and leak prevention
• Package includes 5 large O-rings and 1 small O-ring for comprehensive replacement needs

Technical Details and Material Benefits

The Dorman 926-165 O-rings are made from FKM, a fluorocarbon elastomer known for its excellent resistance to high temperatures, oils, and automotive coolants. The round shape and specified dimensions—inside diameters of 0.984 and 1.859 inches, outside diameters of 1.262 and 2.137 inches, and a consistent thickness of 0.139 inches—ensure a secure and leak-free seal in radiator coolant hose assemblies. This set is specifically engineered to meet the sealing requirements of Ford F-250 Super Duty and F-350 Super Duty trucks, providing a reliable solution for maintaining cooling system performance.

Compatible Vehicles and Applications

This radiator coolant hose O-ring set is compatible with the following Ford models:

• Ford F-250 Super Duty
• Ford F-350 Super Duty

It is intended for use in radiator coolant hose connections where maintaining a tight seal is critical to prevent leaks and ensure proper engine cooling.

Common Issues Addressed by This O-Ring Set

• Prevents coolant leaks caused by worn or damaged hose seals
• Reduces risk of overheating due to compromised coolant system integrity
• Eliminates coolant contamination from external debris entering through faulty seals
• Maintains pressure within the radiator hose system for optimal engine performance
• Replaces brittle or cracked O-rings that can cause system failure

Installation Notes and Tips

• Ensure the radiator hose and connection surfaces are clean and free of debris before installation
• Lubricate O-rings lightly with compatible coolant or lubricant to ease installation and prevent damage
• Verify correct O-ring size by matching inside and outside diameters to the hose fittings
• Inspect hoses for wear or damage and replace if necessary to ensure proper sealing
• Follow vehicle manufacturer torque specifications when reassembling hose clamps

Quality Assurance and Warranty

Dorman parts are engineered to meet or exceed OEM specifications for fit, form, and function. The 926-165 Radiator Coolant Hose O-Ring set undergoes rigorous quality control to ensure durability and performance in demanding automotive environments. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship to provide confidence in product reliability.