Description
Product Overview
The Dorman Fuel Injector O‑Ring Kit (model 904‑312) delivers a precise, round rubber seal designed to match original equipment specifications. Each kit includes one high‑grade rubber O‑ring, ready for paint if needed, and conforms to OEM part numbers 4429356, 4728041, and 4798375. With dimensions of 3.75 x 3.35 x 1.35 inches and a lightweight 1.44‑ounce construction, the kit offers durability without adding bulk.
Usage
Ideal for professional repair shops and DIY vehicle owners, this kit restores proper fuel injector sealing during routine service or after damage. It fits a wide range of models listed in Dorman’s garage tool, ensuring a leak‑free fuel system for both gasoline and diesel applications. 
Why Choose Us
Backed by over a century of automotive expertise, Dorman guarantees strict manufacturing tolerances and reliable performance. Our U.S. product experts verify fitment, and the kit’s ready‑to‑paint exterior allows seamless integration with OEM aesthetics. Customer reviews average 4.4 stars, reflecting consistent satisfaction.
Key Features
- Exact 904‑312 fit replaces OEM O‑rings without modification
- Durable rubber construction resists fuel degradation
- Round design ensures uniform pressure distribution
- Ready‑to‑paint exterior for seamless OEM appearance
- Backed by Dorman’s extensive automotive experience and support
FAQ
What vehicles are compatible with this O‑ring kit?
The kit matches OEM part numbers 4429356, 4728041, and 4798375. Use Dorman’s garage tool to confirm fit for your specific make and model.
Can I paint the O‑ring after installation?
Yes, the exterior is designed to be ready for paint, allowing you to match the surrounding components for a factory‑like finish.
Is professional installation required?
No, the kit is user‑friendly for both seasoned technicians and DIY enthusiasts. Follow the included instructions for a quick, leak‑free seal.
How does the rubber material perform under high temperatures?
The high‑grade rubber is formulated to resist fuel exposure and maintain elasticity under typical engine temperatures, ensuring long‑lasting sealing.
What is the warranty on this product?
Dorman offers a limited warranty covering manufacturing defects, reflecting confidence in the kit’s quality and durability.
Fuel Injector O-Ring Kit Dorman Rubber Seal Replacement
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