Dorman 918-737 Engine Variable Valve Timing (VVT) Sprocket - Intake

Overview of Dorman Engine Variable Valve Timing Sprocket 918-737

The Dorman 918-737 Engine Variable Valve Timing (VVT) Sprocket is designed for precise engine timing control in select Lexus and Toyota vehicles. Engineered from durable metal with a gray finish, this sprocket supports optimal valve train performance in models like the Lexus GS300 and Toyota Camry.

• Constructed from high-quality metal for durability
• Gray color with a 1.175 inch inside diameter and 3.72 inch outside diameter
• Bolt-on attachment type for secure installation (bolt not included)
• Measures 4.35 inches in diameter and overall length, with a height of 2.345 inches
• Compatible with Lexus Avalon, Camry, GS300, and IS250 models

Detailed Product Description

The Dorman 918-737 VVT sprocket is a critical component in the engine valve train system, responsible for regulating variable valve timing to improve engine efficiency and performance. Its metal construction ensures resistance to wear and heat, while the precise dimensions—1.175 inch inside diameter and 3.72 inch outside diameter—allow for accurate fitment and function. The bolt-on design simplifies installation, although bolts are not included with the part. This sprocket is specifically engineered for compatibility with Lexus and Toyota vehicles, including the Avalon, Camry, GS300, and IS250, ensuring reliable operation within these engine systems.

Common Applications and Issues Addressed

• Restores proper variable valve timing function in Lexus GS300 and Toyota Camry engines
• Replaces worn or damaged VVT sprockets causing engine timing errors
• Helps resolve rough idling or reduced engine performance linked to valve timing issues
• Supports repair of check engine light codes related to VVT system malfunctions
• Improves fuel efficiency and engine responsiveness by maintaining correct valve timing

Installation Notes and Tips

• Ensure engine is cool before beginning installation to avoid injury
• Use appropriate tools for bolt-on attachment; note that bolts are not included
• Verify compatibility with your specific Lexus or Toyota model and engine type
• Follow manufacturer torque specifications when securing the sprocket
• Inspect related valve train components during installation for wear or damage

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 918-737 VVT sprocket undergoes rigorous quality control to ensure durability and reliable performance in compatible Lexus and Toyota vehicles. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Refer to Dorman’s official documentation for exact warranty terms.