Standard Ignition VVT579 Engine Variable Valve Timing (VVT) Sprocket - Intake (Right)

Overview of Standard Ignition VVT579 Engine Variable Valve Timing Sprocket

The Standard Ignition VVT579 is a precision-engineered engine variable valve timing (VVT) sprocket designed specifically for Subaru Forester, Legacy, and Outback models. Manufactured from durable metal, this crankshaft gear ensures reliable performance and accurate timing for your vehicle's valve train system.

• Engine variable valve timing sprocket for Subaru Forester, Legacy, and Outback
• Constructed from high-quality metal gear material
• Crankshaft gear type with 36 teeth and 5 timing marks
• Inside diameter of 2.91 inches (73.914 mm) and outside diameter of 3.68 inches (93.472 mm)
• Includes a keyway notch and single mounting hole for secure installation
• Thickness and tooth width both measure 0.16 inches (4.064 mm)
• Part number VVT579 for precise fitment and identification

Detailed Product Description

The Standard Ignition VVT579 sprocket is engineered to maintain optimal engine timing by controlling the variable valve timing mechanism on compatible Subaru models. This crankshaft gear features a single row with 36 teeth and five timing marks, allowing for precise synchronization of the camshaft and crankshaft. The sprocket’s metal construction provides durability and resistance to wear under high engine stress. Its inside diameter of 2.91 inches (73.914 mm) and outside diameter of 3.68 inches (93.472 mm) ensure a proper fit within the valve train assembly. The included keyway notch and single mounting hole facilitate secure and accurate installation without the need for additional hardware.

Common Applications and Issues Addressed

• Restores proper variable valve timing function in Subaru Forester, Legacy, and Outback engines
• Resolves timing chain slack or misalignment problems
• Eliminates engine performance issues related to faulty VVT sprockets
• Prevents irregular engine idling and rough acceleration caused by timing errors
• Supports maintenance and repair of the valve train components to extend engine life

Installation Notes and Tips

• Compatible specifically with Subaru Forester, Legacy, and Outback models; verify vehicle year and engine type before installation
• Installation requires removal of the timing chain cover and proper alignment of timing marks
• Use appropriate tools to avoid damage to the sprocket or crankshaft during installation
• Ensure the keyway notch aligns correctly with the crankshaft key for secure fitment
• Torque mounting bolt to manufacturer specifications to prevent loosening

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. The VVT579 sprocket undergoes rigorous quality control to maintain precise dimensions and material integrity. While specific warranty details may vary, Standard Ignition typically offers limited warranties covering defects in material and workmanship. Consult product documentation or authorized sources for exact warranty terms.