Dorman 300-912 Secondary Air Injection Pump Pulley - Right

Overview of Dorman Secondary Air Injection Pump Pulley

The Dorman 300-912 Secondary Air Injection Pump Pulley is designed to restore proper function to the air injection system on select Chevrolet and GMC vehicles. Constructed from durable steel with a black finish, this pulley is engineered for reliable performance in emission control applications.

• Made from sturdy steel material for durability
• Black color with a 6-groove design for serpentine belt compatibility
• 1.28-inch width for precise fitment
• Single mounting hole for secure installation
• Standard replacement grade for emission control systems
• Includes one smog pump pulley per package

Detailed Product Description

The Dorman 300-912 Secondary Air Injection Pump Pulley is a direct replacement part designed specifically for the secondary air injection system on various Chevrolet and GMC models, including the Astro, Blazer, C1500, K1500, Yukon, and more. Its steel construction ensures long-lasting strength and resistance to wear, while the black finish provides corrosion resistance. The pulley features six grooves to accommodate serpentine belts, ensuring smooth and efficient power transfer to the secondary air injection pump. With a width of 1.28 inches and a single mounting hole, this pulley fits securely and maintains proper alignment within the engine bay.

Compatible Vehicles and Applications

This secondary air injection pump pulley is compatible with a range of Chevrolet and GMC vehicles, including:

• Chevrolet Astro, Blazer, C1500, C1500 Suburban, C2500, C2500 Suburban, C3500, Jimmy, K1500, K1500 Suburban, K2500, K2500 Suburban, K3500, Safari, Yukon
• GMC G10, G20, G30, P30, P3500, R20, R20 Suburban, R30, R2500, R2500 Suburban, R3500, V20 Suburban, V30, V1500 Suburban, V3500

Common Issues Addressed by This Pulley

• Worn or damaged pulley causing belt slippage
• Noise or vibration from the secondary air injection pump area
• Failure of the air injection system to operate correctly
• Misalignment leading to premature belt wear
• Corrosion or structural damage to the original pulley

Installation Notes and Tips

The Dorman 300-912 pulley is a standard replacement part and does not include installation hardware or instructions. It is recommended to inspect the serpentine belt and related components during installation and replace if necessary. Proper torque specifications should be followed to ensure secure mounting. Professional installation is advised if unfamiliar with secondary air injection system components.

Quality Assurance and Warranty

This Dorman secondary air injection pump pulley meets standard replacement grade requirements for emission control parts. Manufactured with quality steel and precision engineering, it is designed to provide reliable service. Warranty coverage details should be confirmed with the product documentation or supplier.