Description
Product Overview
The ACDelco Transmission Mount is engineered to meet General Motors’ exacting standards, providing a direct‑fit replacement for the original factory component. Constructed from a brushed metal finish with a machined exterior, the mount combines robust structural integrity with corrosion‑resistant properties. Measuring 8 × 10 × 6 inches and weighing 3.37 lb, it features an engine compartment mounting design that integrates seamlessly with surrounding components. The part number 20840181 aligns with OEM specifications, ensuring a precise match for GM vehicles that require a vehicle‑specific transmission support solution.
Usage

Designed for everyday driving conditions, this transmission mount excels in both city commuting and long‑distance highway travel. It effectively absorbs drivetrain vibrations, reducing cabin noise and enhancing overall ride comfort. Ideal for owners seeking to maintain factory‑level performance after wear or damage, the mount is suited for a range of GM models that specify the 20840181 part. Proper installation in the engine compartment ensures optimal load distribution and longevity.
Why Choose Us
Choosing the ACDelco transmission mount guarantees the quality, reliability, and durability associated with GM original equipment. Each unit undergoes rigorous testing to meet or exceed OEM performance criteria, providing confidence in fit and function. As a GM‑recommended replacement, it offers seamless integration with existing vehicle systems, minimizing the risk of premature wear. Our commitment to precision manufacturing ensures that every mount delivers consistent performance, backed by a strong track record of customer satisfaction reflected in a 4.7‑star rating.
Key Features
- Brushed metal finish for enhanced durability and corrosion resistance
- Engine compartment mounting type for precise, vehicle‑specific fit
- Designed to absorb drivetrain vibrations, improving ride comfort
- OEM‑matched specifications (Part No. 20840181) for GM vehicles
- Lightweight yet robust construction at 3.37 lb for easy handling
FAQ
Is this transmission mount compatible with all GM models?
The mount is vehicle‑specific and matches the GM part number 20840181. Verify your vehicle’s service manual or consult a dealer to confirm compatibility.
Can I install the mount myself?
Installation requires basic mechanical tools and knowledge of engine compartment components. If you are comfortable working under the vehicle and have the proper torque specifications, you can install it yourself; otherwise, professional installation is recommended.
What benefits does the brushed finish provide?
The brushed finish not only gives a sleek appearance but also enhances resistance to corrosion and wear, extending the mount’s service life in harsh environments.
How does this mount improve ride quality?
By securely anchoring the transmission and absorbing vibrations, the mount reduces noise and harshness transmitted to the cabin, resulting in a smoother, more comfortable ride.
What is the warranty coverage for this product?
ACDelco offers a limited warranty that covers defects in material and workmanship. Refer to the warranty card included with the product for specific terms and duration.





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