Standard Ignition VVT599 Engine Variable Valve Timing (VVT) Sprocket - Intake

Reliable Engine Variable Valve Timing Sprocket for Toyota Vehicles

The Standard Ignition VVT599 engine variable valve timing sprocket is designed to maintain precise timing control in your Toyota 4Runner, FJ Cruiser, Tacoma, or Tundra. Engineered with durable metal construction, this crankshaft gear ensures consistent performance and longevity.

• Engine variable valve timing sprocket for accurate valve timing
• Constructed from durable metal gear material
• Crankshaft gear type with dual gear rows
• Inside diameter of 1.43 inches (36.322 mm) for precise fitment
• Outside diameter of 4.41 inches (112.014 mm) with 36 and 22 teeth gears
• Thickness of 0.2 inches (5.08 mm) and tooth width of 0.2 inches (5.08 mm)
• Includes one mounting hole with a lug hole diameter of 0.49 inches (12.446 mm)
• Features three timing marks for accurate alignment

Detailed Product Description

The Standard Ignition VVT599 sprocket is a critical component in the variable valve timing system of select Toyota models, including the 4Runner, FJ Cruiser, Tacoma, and Tundra. This sprocket is constructed from high-quality metal to withstand the stresses of engine operation. It features two rows of gears with 36 and 22 teeth respectively, designed to mesh precisely with the crankshaft and timing chain. The sprocket’s 1.43-inch inside diameter and 4.41-inch outside diameter ensure a secure fit, while the 0.2-inch thickness and tooth width provide durability and consistent timing performance. Three timing marks on the sprocket assist in proper installation and timing adjustments.

Common Applications and Issues Addressed

• Restores proper variable valve timing function in Toyota 4Runner, FJ Cruiser, Tacoma, and Tundra engines
• Resolves timing chain noise or irregular engine performance caused by worn or damaged sprockets
• Prevents engine misfires and rough idling related to timing component wear
• Supports engine efficiency and emissions control by maintaining accurate valve timing

Installation Notes and Tips

When installing the Standard Ignition VVT599 sprocket, ensure the engine is cool and the timing chain is properly aligned with the sprocket’s timing marks. Use appropriate tools to avoid damaging the sprocket or crankshaft. Verify the inside diameter and mounting hole dimensions match your vehicle’s specifications before installation. This sprocket is not adjustable and does not include installation hardware, so retain original components or source compatible hardware as needed.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The VVT599 sprocket undergoes rigorous quality control to ensure durability and reliable performance in Toyota variable valve timing systems. Please refer to Standard Ignition’s warranty policy for specific coverage details.