Description
Product Overview
The ACDelco transmission seal is a performance‑grade rubber component designed specifically for GM automatic transmissions. Manufactured to original equipment specifications, it features a machined exterior for a perfect seal and durability under high pressure. Dimensions are 1.6 x 1.6 x 0.6 inches, weighing only 0.16 ounces, making it easy to handle and install. This vehicle‑specific fit part carries the OEM part number 08656613 and is produced in the United States.
Usage
This seal is intended for use in cars, trucks, and SUVs equipped with GM automatic transmissions. It is ideal for routine maintenance, transmission rebuilds, or replacement of worn seals to prevent fluid leaks. Whether you are a professional technician or a DIY owner, the seal’s straightforward installation process fits a wide range of GM models.

Why Choose Us
ACDelco is a trusted brand backed by extensive testing and engineering for GM vehicles. Our seals are crafted from premium rubber, offering superior resistance to heat and chemicals. Each unit undergoes strict quality control to ensure it meets OEM fit, form, and function, providing confidence in long‑term reliability and performance.
Key Features
- Exact GM vehicle‑specific fit eliminates guesswork during installation
- High‑grade rubber material resists wear, heat, and transmission fluids
- Machined exterior delivers a tight, leak‑free seal
- OEM part number 08656613 guarantees compatibility with factory specifications
- Made in the USA with rigorous quality assurance processes
FAQ
Is this seal compatible with all GM automatic transmissions?
The seal is designed for specific GM models listed under the OEM part number 08656613. Verify your vehicle’s transmission type to ensure compatibility.
Can I install the seal myself?
Yes, the seal is user‑friendly and includes clear instructions. Basic hand tools are sufficient for a proper installation.
What warranty does ACDelco provide?
ACDelco offers a limited warranty covering manufacturing defects, ensuring you receive a reliable product.
How does this seal differ from generic aftermarket options?
Our seal meets exact OEM specifications, uses premium rubber, and undergoes strict testing, delivering superior fit and durability compared to generic alternatives.
What is the recommended torque for installing this seal?
Follow the vehicle service manual for torque specifications; typically, a light press fit is sufficient without excessive force.







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