Dial in precise camshaft timing with the Standard Ignition Engine Variable Valve Timing (VVT) Sprocket VVT543. Cataloged for the intake camshaft, left bank, it fits a wide range of GM applications including the 2010-2015 Chevrolet Camaro, 2008-2017 Chevrolet Equinox, 2012-2020 Chevrolet Impala, 2007-2016 GMC Acadia, 2013-2019 Cadillac ATS, and the 2008-2014 and 2016-2022 Buick Enclave — see the Buyer's Guide tab for the full list of 33 applications.
This VVT sprocket (cam phaser) mounts to the intake camshaft and uses pressurized engine oil, directed by the VVT control solenoid, to advance or retard intake valve timing as the engine control module commands.
- Intake position: cataloged for the intake camshaft, left bank.
- Oil-actuated phasing: adjusts intake cam timing relative to the crankshaft to help balance power, economy, and emissions.
- Direct-fit replacement: installs on the listed GM applications.
Signs this sprocket may need replacing include a rattle at startup, rough idle, or camshaft-timing-correlation trouble codes. If a worn or stuck VVT sprocket is the cause, this unit replaces it; diagnose the timing system first, since the VVT solenoid, oil flow, or timing chain can produce similar symptoms.
Manufacturer part number VVT543.
Frequently Asked Questions
What position is this VVT sprocket for?
It is cataloged for the intake camshaft, left bank position, on the listed applications.
What does a VVT sprocket do?
It uses pressurized engine oil, directed by the VVT control solenoid, to advance or retard intake camshaft timing relative to the crankshaft as the ECM commands.
What are the signs it may need replacing?
A rattle at startup, rough idle, or camshaft-timing-correlation trouble codes may point to a worn sprocket. Diagnose the timing system first, as other parts can cause similar symptoms.
Which vehicles does VVT543 fit?
Many GM models, including the Chevrolet Camaro, Equinox, Impala and Traverse, GMC Acadia and Terrain, Cadillac ATS and CTS, and Buick Enclave and LaCrosse — see the Buyer's Guide tab for all 33 applications.
What is the manufacturer part number?
The manufacturer part number is VVT543.
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