Description
Product Overview
The ACDelco fuel injection O ring is engineered to meet GM original equipment standards, ensuring exact fit, form, and function. Crafted from high‑grade machined material, it offers superior resistance to fuel chemicals and temperature fluctuations. With dimensions of 1.7 x 6.5 x 5.1 inches and a lightweight of just 0.211 ounces, this component integrates seamlessly into the fuel injection system, providing a dependable seal that maintains engine efficiency.
Usage
Designed for use in a wide range of GM models, this O ring is ideal for both professional service centers and home garages. It excels in high‑performance environments, such as racing or heavy‑duty applications, where consistent fuel delivery is critical. Whether you are rebuilding a fuel injector or performing routine maintenance, the ACDelco O ring delivers reliable performance for technicians and DIY enthusiasts alike.

Why Choose Us
Choosing ACDelco means selecting a part that adheres to strict GM OE specifications, guaranteeing compatibility and longevity. Manufactured in Italy, each O ring undergoes rigorous quality checks to ensure dimensional accuracy and material integrity. Backed by GM Genuine Parts reputation, this component offers peace of mind with its proven durability and consistent sealing capability.
Key Features
- Precision machined exterior for enhanced durability
- Exact GM OE fit, form, and function
- Lightweight design reduces overall component weight
- Resistant to fuel chemicals and high temperatures
- Manufactured in Italy to strict quality standards
FAQ
What vehicles is this O ring compatible with?
The ACDelco O ring is designed for GM models that use part number 12673056, fitting a variety of fuel injection systems across the brand’s lineup.
Can I install this O ring myself?
Yes, with basic hand tools and proper cleaning of the sealing surfaces, the O ring can be installed by DIY enthusiasts. Follow the service manual for torque specifications.
What material is the O ring made from?
It is constructed from a high‑grade, fuel‑resistant elastomer that maintains flexibility and sealing performance under extreme temperatures.
Is this part covered by a warranty?
ACDelco provides a limited warranty against manufacturing defects, ensuring replacement or refund if the part fails under normal use.
How does the machined design improve performance?
The machined exterior offers a smoother surface, reducing friction and wear, which translates to a longer service life and more reliable fuel system operation.





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