Description
Product Overview
The GM Genuine Parts rocker arm is a precision‑engineered component designed to meet original equipment specifications for GM vehicles. Constructed from high‑grade machined steel, it features a waterproof coating that protects against moisture and corrosion. Weighing 3.6 pounds and measuring 23.3 x 7.3 x 4.1 inches, this center‑position arm fits seamlessly into the engine assembly, delivering consistent valve actuation at 12 volts.
Usage
This rocker arm is ideal for both professional mechanics and DIY enthusiasts performing engine repairs or upgrades on GM models. It excels in environments where exposure to water or humidity is common, such as coastal regions or heavy‑rain conditions. Install the arm by locating a certified GM dealer or qualified service center to ensure proper torque settings and alignment.
Why Choose Us
Choosing the GM Genuine Parts rocker arm guarantees OEM quality, exact fit, and rigorous testing. Each unit is backed by GM’s warranty, reflecting confidence in durability and performance. Our parts are sourced directly from the manufacturer, eliminating the risk of counterfeit components and ensuring long‑term engine reliability.
Key Features
- Machined steel construction for superior strength and wear resistance
- Waterproof coating protects against moisture and corrosion
- Exact center fit for easy, tool‑free installation
- 12‑volt design compatible with all GM engine control systems
- OEM part number 12642655 ensures perfect compatibility
FAQ
Is this rocker arm compatible with all GM models?
The arm is designed for GM vehicles that use the original equipment part number 12642655. Verify your vehicle’s specifications or consult a GM dealer for confirmation.
Do I need special tools to install the rocker arm?
Installation requires standard automotive tools and a torque wrench. For best results, have the work performed by a certified GM service center.
What warranty does this product include?
GM Genuine Parts provides a limited warranty covering defects in material and workmanship for the duration specified by the manufacturer.
Can the waterproof feature handle submersion?
The waterproof coating protects against splashes and moisture exposure typical in engine bays, but it is not intended for full submersion.
How does this part improve engine performance?
By ensuring precise valve timing and reducing wear, the machined rocker arm helps maintain optimal engine efficiency and power output.
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