Dorman 918-182 Engine Variable Valve Timing (VVT) Sprocket - Intake

Overview of Dorman Engine Variable Valve Timing Sprocket 918-182

The Dorman 918-182 engine variable valve timing (VVT) sprocket is designed for precise timing control in select GM vehicles. Engineered from durable steel with a silver finish, this standard replacement sprocket supports optimal valve train performance in Chevrolet, Pontiac, and Saturn models.

• Constructed from high-quality steel for strength and durability
• Silver color finish for corrosion resistance
• Bolt attachment type (bolt not included)
• Diameter and overall length of 4.74 inches
• Overall height of 1.5 inches
• Standard replacement grade for reliable engine timing
• Compatible with Chevrolet Astra, Aveo, Aveo5, Pontiac G3, G3 Wave, and Saturn models

Detailed Product Description

The Dorman 918-182 VVT sprocket is a critical component in the variable valve timing system, which adjusts valve operation to improve engine efficiency and performance. Made from steel, this sprocket offers the necessary strength to withstand engine stresses while maintaining precise timing. Its 4.74-inch diameter and length, combined with a 1.5-inch height, ensure proper fitment and function within the valve train assembly. The bolt attachment type allows for secure installation, although bolts are not included with the part. This standard replacement sprocket is engineered to meet OEM specifications, making it suitable for use in Chevrolet Astra, Aveo, Aveo5, Pontiac G3, G3 Wave, and Saturn vehicles requiring this specific part number.

Common Applications and Issues Addressed

• Restores proper variable valve timing function in Chevrolet Aveo and Pontiac G3 models
• Resolves engine performance issues related to worn or damaged VVT sprockets
• Eliminates timing chain noise caused by faulty sprocket components
• Prevents engine misfires and rough idling due to timing inconsistencies
• Supports maintenance and repair of Saturn models with VVT system concerns

Installation Notes and Tips

• Ensure compatibility with vehicle make and model before installation
• Use appropriate torque specifications for bolt attachment (bolts not included)
• Inspect timing chain and related components for wear during replacement
• Follow manufacturer service manual procedures for VVT sprocket installation
• Verify timing alignment after installation to maintain engine performance

Quality Assurance and Warranty

Dorman manufactures the 918-182 VVT sprocket to meet industry standards for material quality and dimensional accuracy. This part is a standard replacement grade component designed to provide reliable service life. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Refer to Dorman’s warranty policy for complete information.