Walker Products Engine Oil Pressure Switch - 256-1008

Walker Products Engine Oil Pressure Switch - 256-1008

SKU: WPR-256-1008

Walker Products

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Product details

Part Name Engine Oil Pressure Switch
Brand Walker Products
Part Number 256-1008
UPC 00724620205866

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Fitment is guaranteed:

If your vehicle is listed on the fitment table below, the product will fit your car - we guarantee it. All you need to do is to ensure that the vehicle's Year, Make, Model, Trim, and any other notes specified inside the fitment table are respected.

Included warranty:

This product has life-time limited warranty.

Warranty starts from the date of delivery.
Proof of purchase required for all claims.
Covers manufacturing defects only.
Does not cover normal wear & tear.
Does not cover cosmetic damage or rust damage.

To initiate a claim, simply send an email to support@partspioneer.ca. For more information, read our Warranty Policy.

Choose Walker Products because:

Walker Products Engine Oil Pressure Switches are OE Replacement components engineered to monitor oil pressure and alert the ECU or driver when levels fall below safe limits. These switches serve as critical warning devices that activate dashboard lights or feed signals to engine control systems when oil pressure drops, helping prevent severe internal damage due to lack of lubrication. Common symptoms of failure include oil light flickering, false warnings, or lack of signal under actual low-pressure conditions. Walker switches are manufactured to match OE specifications for pressure thresholds, thread size, terminal type, and electrical response. Each unit is built with high-temperature and oil-resistant materials to ensure consistent performance under prolonged engine exposure. Designed for exact OE fit, these switches thread directly into the factory location—typically the engine block or oil filter housing—and connect to existing wiring with no modifications. Whether used as part of a scheduled service, drivability repair, or engine rebuild, Walker Oil Pressure Switches provide dependable pressure monitoring and help extend engine life by maintaining early warning functionality within the lubrication system.

Characteristics include:

Exact OE Fit: Installs directly in the factory location using original threads and connectors—no modifications required.
Engineered for Harsh Conditions: Built to resist high temperatures, oil exposure, and vibration in demanding engine environments.
Prevents Engine Damage: Helps protect vital components by alerting the driver or system to low oil pressure conditions.
Monitors Oil Pressure Levels: Activates dashboard warning or ECU input when oil pressure falls below safe operating thresholds.
OE Replacement Calibration: Matches original specs for pressure activation point, thread pitch, and electrical response.

Some of the interchangeable part numbers are:

80001 | 33004625 | 33004791 | 33004791AB | PS421 | PS309 | PS309T | S4201 | 12562858 | 12569322 | 12574309 | 12584940 | 12677837 | 12677838 | 24504548 | 24508730 | 88924489 | 12574309 12574309 | 3OPS0008-B-A | 3OPS0030 | 3OPS0031 | 3OPS0031-B-A | 3OPS0072 | 1S6772 | 213-1519 | 213-1543 | 213-1650

Customer Video Reviews

Watch genuine customer videos showing their upgrades and honest results of similar products

Fitment Table

This product is compatible with these vehicles:

Year	Make	Model	Notes
2014	Chevrolet	Express 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2014	GMC	Savana 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2013	Chevrolet	Express 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2013	Chevrolet	Silverado 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2013	GMC	Savana 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2013	GMC	Sierra 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2012	Chevrolet	Express 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2012	Chevrolet	Silverado 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2012	GMC	Savana 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2012	GMC	Sierra 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2011	Chevrolet	Express 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2011	Chevrolet	Silverado 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2011	GMC	Savana 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2011	GMC	Sierra 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2010	Chevrolet	Express 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2010	Chevrolet	Silverado 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2010	GMC	Savana 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2010	GMC	Sierra 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2009	Chevrolet	Express 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2009	Chevrolet	Silverado 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2009	GMC	Savana 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2009	GMC	Sierra 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2008	Chevrolet	Express 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2008	Chevrolet	Silverado 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2008	GMC	Savana 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2008	GMC	Sierra 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2007	Chevrolet	Express 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2007	Chevrolet	Silverado 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2007	Chevrolet	Silverado 1500 Classic	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2007	GMC	Savana 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2007	GMC	Sierra 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2007	GMC	Sierra 1500 Classic	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2006	Chevrolet	Express 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2006	Chevrolet	Silverado 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2006	GMC	Savana 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2006	GMC	Sierra 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2005	Buick	LeSabre	3.8L V engine 6 cylinders 3.80" bore 3.40" stroke
2005	Buick	Park Avenue	3.8L V engine 6 cylinders 3.80" bore 3.40" stroke
2005	Chevrolet	Express 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke with 3 Terminal(s)
2005	Chevrolet	Express 2500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke with 3 Terminal(s)
2005	Chevrolet	Silverado 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2005	GMC	Savana 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke with 3 Terminal(s)
2005	GMC	Savana 2500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke with 3 Terminal(s)
2005	GMC	Sierra 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2005	Pontiac	Bonneville	3.8L V engine 6 cylinders 3.80" bore 3.40" stroke
2004	Buick	LeSabre	3.8L V engine 6 cylinders 3.80" bore 3.40" stroke
2004	Buick	Park Avenue	3.8L V engine 6 cylinders 3.80" bore 3.40" stroke
2004	Chevrolet	Express 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke with 3 Terminal(s)
2004	Chevrolet	Express 2500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke with 3 Terminal(s)
2004	Chevrolet	Silverado 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke with 3 Terminal(s)
2004	GMC	Savana 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke with 3 Terminal(s)
2004	GMC	Savana 2500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke with 3 Terminal(s)
2004	GMC	Sierra 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke with 3 Terminal(s)
2004	Pontiac	Bonneville	3.8L V engine 6 cylinders 3.80" bore 3.40" stroke
2003	Buick	LeSabre	3.8L V engine 6 cylinders 3.80" bore 3.40" stroke
2003	Buick	Park Avenue	3.8L V engine 6 cylinders 3.80" bore 3.40" stroke
2003	Chevrolet	Express 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2003	Chevrolet	Express 2500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2003	Chevrolet	Silverado 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke with 3 Terminal(s)
2003	GMC	Savana 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2003	GMC	Savana 2500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke
2003	GMC	Sierra 1500	4.3L V engine 6 cylinders 4.00" bore 3.48" stroke with 3 Terminal(s)
2003	Pontiac	Bonneville	3.8L V engine 6 cylinders 3.80" bore 3.40" stroke
2002	Buick	LeSabre	3.8L V engine 6 cylinders 3.80" bore 3.40" stroke
2002	Buick	Park Avenue	3.8L V engine 6 cylinders 3.80" bore 3.40" stroke
2002	Pontiac	Bonneville	3.8L V engine 6 cylinders 3.80" bore 3.40" stroke
2001	Buick	LeSabre	3.8L V engine 6 cylinders 3.80" bore 3.40" stroke
2001	Buick	Park Avenue	3.8L V engine 6 cylinders 3.80" bore 3.40" stroke
2001	Pontiac	Bonneville	3.8L V engine 6 cylinders 3.80" bore 3.40" stroke
2000	Buick	LeSabre	3.8L V engine 6 cylinders 3.80" bore 3.40" stroke
2000	Buick	Park Avenue	3.8L V engine 6 cylinders 3.80" bore 3.40" stroke
2000	Pontiac	Bonneville	3.8L V engine 6 cylinders 3.80" bore 3.40" stroke
1999	Buick	Park Avenue	3.8L V engine 6 cylinders 3.80" bore 3.40" stroke
1998	Buick	Park Avenue	3.8L V engine 6 cylinders 3.80" bore 3.40" stroke
1997	Buick	Park Avenue	3.8L V engine 6 cylinders 3.80" bore 3.40" stroke
1996	Dodge	Viper	8.0L V engine 10 cylinders 4.00" bore 3.88" stroke with Light
1995	Dodge	Viper	8.0L V engine 10 cylinders 4.00" bore 3.88" stroke with Light
1994	Dodge	Viper	8.0L V engine 10 cylinders 4.00" bore 3.88" stroke For Light
1993	Dodge	Viper	8.0L V engine 10 cylinders 4.00" bore 3.88" stroke For Light
1992	Dodge	Viper	8.0L V engine 10 cylinders 4.00" bore 3.88" stroke For Light

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