BCBC VCTA-1007H Engine Variable Valve Timing (VVT) Sprocket

Engine VVT Sprocket Overview

This engine variable valve timing sprocket is a stock replacement component for compatible GM applications. Part number VCTA-1007H is built from hardened steel and finished with anti-rust protection for dependable service in the valve train.

Key Features

• Hardened steel construction for strength in timing system service.
• Anti-rust finish helps protect the sprocket surface.
• Standard replacement grade for direct service use.
• 44-tooth design with a 1.55 in. inside diameter.
• Fits a wide range of Chevrolet, GMC, Cadillac, and Hummer applications.

Detailed Description

VCTA-1007H is a variable valve timing sprocket actuator used to adjust cam timing based on engine demand. In compatible Chevrolet Silverado 1500, GMC Sierra 1500, and Chevrolet Tahoe applications, it helps the engine respond with the timing control needed for power delivery and efficiency. Melling builds this camshaft sprocket actuator from durable steel and supplies it as a precision-engineered replacement for consistent installation and operation. This part cross-references Dorman - OE Solutions 918-186 and Standard Ignition VVT590 for the same application.

What It Is Used For

• Restoring cam timing control when the original actuator is worn or sticking.
• Addressing timing-related drivability concerns in VVT-equipped engines.
• Replacing a damaged sprocket actuator in the valve train.
• Supporting proper engine power delivery and fuel economy control.
• Correcting noise or performance issues tied to timing system wear.

Installation Notes and Tips

Confirm engine code and fitment before ordering, since this part is application-specific. The fitment notes indicate the oil control valve must be ordered separately as needed for many applications. Verify the timing components, cam phaser, and related hardware condition during service, and follow the manufacturer service procedure for installation.

Quality Assurance

Melling manufactures this sprocket actuator as a precision-engineered replacement part for dependable operation. Part number VCTA-1007H is built to standard replacement specifications for the listed applications.