ACDelco GM Genuine Input Shaft Bearing 86506639 Machined Steel

Description

Product Overview

The ACDelco GM Genuine Input Shaft Bearing is a precision‑engineered component designed to transfer torque from your vehicle’s transmission or differential to the wheels. Manufactured by ACDelco for General Motors, this bearing meets original equipment specifications and features a machined steel exterior for superior strength and wear resistance. It weighs 31.3 pounds and measures 24.2 x 6.7 x 6.7 inches, fitting seamlessly into GM transmission assemblies.

Usage

Ideal for Chevrolet, Buick, GMC and Cadillac models, this bearing is used during transmission rebuilds, differential repairs, or routine maintenance. It performs reliably in everyday driving, heavy‑load conditions, and performance applications, ensuring smooth power delivery and reduced vibration. Technicians and DIY enthusiasts alike appreciate its direct OE fit and straightforward installation.

Why Choose Us

Choosing the ACDelco GM Genuine Input Shaft Bearing means selecting a part that has been designed, engineered, and tested to GM’s rigorous standards. Backed by General Motors, it offers OEM quality, consistent performance, and the confidence of a brand trusted by millions of drivers. Continuous updates to materials and design keep the bearing at the forefront of durability and efficiency.

Key Features

• Machined steel construction provides exceptional strength and wear resistance.
• Engineered to GM original equipment specifications for perfect fit.
• Ensures smooth torque transfer, reducing vibration and noise.
• Designed for Chevrolet, Buick, GMC and Cadillac transmission families.
• Supported by GM’s warranty and dedicated customer service team.

FAQ

Is this bearing compatible with all GM models?

It is compatible with Chevrolet, Buick, GMC and Cadillac vehicles that use the GM Original Equipment part number 86506639.

Do I need special tools to install this bearing?

Standard bearing installation tools are sufficient; however, following GM service guidelines ensures optimal results.

What warranty does ACDelco provide?

The bearing is covered by GM’s standard limited warranty, offering protection against manufacturing defects.

Can this bearing be used in performance upgrades?

Yes, its robust machined steel design handles higher torque loads, making it suitable for performance applications.

How does this bearing differ from aftermarket alternatives?

It meets exact GM OE specifications, guaranteeing fit, durability and the backing of GM’s engineering validation, unlike many generic aftermarket parts.