Keep camshaft timing responding to real-time engine demands with the Walker Products Engine Variable Valve Timing (VVT) Solenoid 590-1399. It's a direct-fit replacement for many Chevrolet, GMC and Cadillac models, among them the 2019-2021 Chevrolet Silverado 1500 4.3L / 5.3L / 6.2L and 2019-2021 GMC Sierra 1500 4.3L / 5.3L / 6.2L — see the "Vehicles it fits" section for the full list of applications and engines.
The VVT solenoid regulates the flow of pressurized oil to the cam phaser or VVT sprocket, adjusting valve timing based on engine load and speed to support fuel efficiency, throttle response, and emissions. Over time a solenoid can clog, stick open or closed, or fail electrically — signs it may need replacing include fault codes such as P0010-P0014 or P0020-P0024, rough idle, hesitation, or reduced power. If a failed solenoid is the cause, this unit replaces it.
- Controls camshaft timing: actuates oil flow to the VVT sprocket to adjust valve timing.
- OE-replacement calibration: designed to match the original electrical specs, oil flow rate, and response timing.
- Built for engine environments: heat-resistant plastic housing and precision-machined internal valve.
- Connector detail: single black D-shaped female connector with two male pin terminals, three mounting holes, 70.00 mm housing width, and a 4.00 mm shaft diameter.
No separate seal is included. Country of origin: China.
Frequently Asked Questions
What does the Walker 590-1399 variable valve timing solenoid do?
It regulates the flow of pressurized oil to the cam phaser or VVT sprocket, adjusting valve timing based on engine load and speed to support fuel economy, throttle response, and emissions.
What are the signs this VVT solenoid may need replacing?
Common signs include VVT fault codes such as P0010-P0014 or P0020-P0024, rough idle, hesitation, or reduced power. Diagnose the cause first, since these symptoms can have other sources.
Will this solenoid fit my vehicle?
It's a direct-fit replacement for many Chevrolet, GMC and Cadillac models, including the 2019-2021 Chevrolet Silverado 1500 4.3L / 5.3L / 6.2L. Check the "Vehicles it fits" section for your exact year, model, and engine.
What connector does the 590-1399 use?
It has a single black D-shaped female connector with two male pin terminals and three mounting holes, with a 70.00 mm housing width and a 4.00 mm shaft diameter.
Is a seal included with this solenoid?
No, a separate seal is not included. Consult the vehicle service information for the correct sealing components and installation procedure.
