Dorman 904-134 Fuel Injector O-Ring Kit

Reliable Fuel Injector O-Ring Kit for Chevrolet and GMC Trucks

The Dorman 904-134 Fuel Injector O-Ring Kit provides essential sealing components designed specifically for select Chevrolet and GMC heavy-duty trucks. This kit includes all necessary o-rings, washers, and clips to maintain proper fuel injector performance and prevent leaks.

• Includes 16 durable rubber o-rings for secure sealing
• Comes with 8 washers and 8 clips for complete installation
• Compatible with Chevrolet Express 2500, Express 3500, Silverado 2500 HD, Silverado 3500, and GMC Sierra 2500 HD, Sierra 3500 models
• Part number 904-134 ensures correct fitment and quality
• Designed for air and fuel delivery service applications

Durable Rubber Material and Complete Package Contents

The Dorman 904-134 Fuel Injector O-Ring Kit features high-quality rubber o-rings engineered to withstand fuel system pressures and temperature variations common in heavy-duty trucks. The kit includes 16 o-rings, 8 washers, and 8 clips, providing a comprehensive set of components needed for fuel injector servicing. These parts help maintain a tight seal around the fuel injectors, preventing fuel leaks and ensuring optimal engine performance.

Compatible Chevrolet and GMC Models

This fuel injector o-ring kit is compatible with a range of Chevrolet and GMC trucks, including the Chevrolet Express 2500 and 3500, Silverado 2500 HD and 3500 series, as well as the GMC Savana 2500 and 3500 and Sierra 2500 HD and 3500 models. Using the correct Dorman 904-134 kit ensures proper fitment and reliable sealing for these specific vehicles.

Common Applications and Issues Addressed

• Prevents fuel injector leaks caused by worn or damaged o-rings
• Eliminates fuel odor and potential fire hazards from injector seal failure
• Restores proper fuel pressure and injector function
• Helps resolve rough idling or engine misfires related to injector leaks
• Supports routine maintenance and fuel system servicing

Installation Notes and Tips

• Ensure the engine is cool before beginning installation to avoid injury
• Clean the fuel injector and surrounding area thoroughly before replacing o-rings
• Lubricate new rubber o-rings with clean engine oil or fuel to ease installation and prevent damage
• Replace washers and clips as included to maintain secure injector mounting
• Verify proper seating of all components to avoid leaks after installation

Quality Assurance and Warranty Information

Dorman manufactures the 904-134 Fuel Injector O-Ring Kit to meet or exceed OEM specifications for durability and fitment. The rubber material is selected for resistance to fuel and heat exposure typical in heavy-duty truck applications. While specific warranty details may vary, Dorman products generally include limited warranties covering defects in material and workmanship to provide confidence in product reliability.