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Standard Ignition VVT637 Engine Variable Valve Timing (VVT) Sprocket - Exhaust
Overview of Standard Ignition VVT637 Engine Variable Valve Timing Sprocket
The Standard Ignition VVT637 is an engine variable valve timing sprocket designed to optimize valve timing for improved engine performance. This component is compatible with select Buick and Cadillac models, including the CTS, LaCrosse, Rendezvous, SRX, and STS.
- Engine variable valve timing sprocket for precise valve control
- Compatible with Buick CTS, LaCrosse, Rendezvous and Cadillac SRX, STS
- Part number VVT637 ensures exact fit and function
- Manufactured to meet OEM specifications for reliable operation
- Supports efficient engine timing adjustments for better performance
Detailed Product Description
The Standard Ignition VVT637 sprocket plays a critical role in the variable valve timing system by adjusting the timing of the camshaft relative to the crankshaft. This adjustment allows the engine to optimize valve opening and closing events, improving fuel efficiency, emissions, and overall engine responsiveness. Designed specifically for Buick and Cadillac vehicles such as the CTS, LaCrosse, Rendezvous, SRX, and STS, this sprocket meets strict quality standards to ensure durability and precise operation. Using part number VVT637 guarantees compatibility and proper fitment within the engine's valve train components.
Common Applications and Issues Addressed
- Restores proper variable valve timing function in Buick CTS and LaCrosse engines
- Resolves timing irregularities causing rough idling or reduced power in Cadillac SRX and STS
- Eliminates engine hesitation linked to faulty VVT sprocket in Buick Rendezvous
- Prevents check engine light triggers related to valve timing sensor errors
- Improves fuel economy by maintaining accurate valve timing adjustments
Installation Notes and Tips
- Ensure engine is cool before beginning installation to avoid injury
- Follow manufacturer torque specifications when securing the sprocket
- Verify timing marks alignment during installation to maintain engine timing accuracy
- Inspect related components such as timing chain and tensioners for wear
- Use appropriate tools to prevent damage to the sprocket or surrounding parts
Quality Assurance and Warranty Information
Standard Ignition manufactures the VVT637 sprocket to meet or exceed OEM standards, ensuring reliable performance and longevity. This part undergoes rigorous quality control testing to confirm fit, function, and durability. While specific warranty terms may vary, Standard Ignition typically offers coverage against defects in materials and workmanship, providing confidence in the product's quality for Buick and Cadillac variable valve timing applications.
| Brand | Standard Ignition |
| Part Number | VVT637 |
| Functions | Engine Variable Valve Timing Sprocket |
This part fits 15 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2006 | Buick | LaCrosse | 3.6L | V6 | Exhaust | |
| 2006 | Buick | Rendezvous | 3.6L | V6 | Exhaust | |
| 2006 | Cadillac | CTS | 3.6L | V6 | Exhaust | |
| 2006 | Cadillac | CTS | 2.8L | V6 | Exhaust | |
| 2006 | Cadillac | SRX | 3.6L | V6 | Exhaust | |
| 2006 | Cadillac | STS | 3.6L | V6 | Exhaust | |
| 2005 | Buick | LaCrosse | 3.6L | V6 | Exhaust | |
| 2005 | Buick | Rendezvous | 3.6L | V6 | Exhaust | |
| 2005 | Cadillac | CTS | 3.6L | V6 | Exhaust | |
| 2005 | Cadillac | CTS | 2.8L | V6 | Exhaust | |
| 2005 | Cadillac | SRX | 3.6L | V6 | Exhaust | |
| 2005 | Cadillac | STS | 3.6L | V6 | Exhaust | |
| 2004 | Buick | Rendezvous | 3.6L | V6 | Exhaust | |
| 2004 | Cadillac | CTS | 3.6L | V6 | Exhaust | |
| 2004 | Cadillac | SRX | 3.6L | V6 | Exhaust |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.