Dorman 904-135 Fuel Injector O-Ring Kit

Overview of Dorman Fuel Injector O-Ring Kit 904-135

The Dorman 904-135 Fuel Injector O-Ring Kit provides essential sealing components designed for reliable fuel injector performance. This kit is compatible with Chevrolet and GMC heavy-duty trucks, including Express, Savana, Sierra, and Silverado models.

• Includes 16 rubber O-rings and 8 washers for comprehensive injector sealing
• Constructed from durable rubber material to withstand fuel system conditions
• Compatible with Chevrolet Express 2500/3500 and GMC Savana 2500/3500
• Fits heavy-duty trucks such as GMC Sierra 2500 HD/3500 HD and Chevrolet Silverado 2500 HD/3500 HD
• Part number 904-135 ensures correct fitment and quality assurance

Detailed Product Description

The Dorman 904-135 Fuel Injector O-Ring Kit contains 16 high-quality rubber O-rings and 8 washers designed to maintain a secure seal around fuel injectors. Proper sealing is critical to prevent fuel leaks and maintain optimal engine performance. This kit is specifically engineered for use in Chevrolet and GMC heavy-duty trucks, including the Express 2500 and 3500, Savana 2500 and 3500, Sierra 2500 HD and 3500 HD, and Silverado 2500 HD and 3500 HD models. The rubber material used in these O-rings offers resistance to fuel and heat, ensuring durability and longevity under demanding operating conditions.

Common Applications and Issues Addressed

• Prevents fuel injector leaks that can cause poor engine performance
• Eliminates fuel odor and potential fire hazards from leaking injectors
• Helps maintain proper fuel pressure and injector function
• Addresses injector seal wear due to age or contamination
• Supports efficient fuel delivery in Chevrolet and GMC heavy-duty trucks

Installation Notes and Tips

• Ensure the engine is cool before beginning installation to avoid injury
• Clean injector ports thoroughly to remove debris and old sealant
• Lubricate new O-rings lightly with clean engine oil or fuel before installation
• Inspect injectors and surrounding components for damage during replacement
• Follow vehicle manufacturer torque specifications when reinstalling injectors

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The 904-135 Fuel Injector O-Ring Kit undergoes quality control inspections to ensure reliable sealing performance. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Refer to Dorman’s official documentation for complete warranty information.