12677836 Engine Oil Pressure Sensor

Key Features

• Direct replacement for original equipment sensor
• Monitors engine oil pressure and sends data to the instrument cluster gauge or warning light
• Engineered to meet manufacturer specifications for fit, form, and function
• Constructed with an aluminum body
• Thread Specification: M16x1.5 straight pipe thread

Replaces / Cross-Reference Part Numbers

• GM: 12677836
• ACDelco: D1846A

Compatibility & Fitment

Designed for a wide range of General Motors vehicles. Always verify fitment with your vehicle's VIN. Common applications include:

• 2003-2008 Chevrolet Silverado 1500
• 2003-2008 GMC Sierra 1500
• 2006-2008 Chevrolet Impala
• 2003-2007 Chevrolet Tahoe / Suburban
• 2003-2007 Chevrolet Trailblazer

When to Replace

Replacement is necessary when you observe symptoms of a failing sensor, such as:

• Erratic or inaccurate oil pressure gauge readings (stuck at high, low, or zero)
• Oil pressure warning light illuminates intermittently or stays on
• Visible oil leak from the sensor housing

Installation Tips

• Ensure the engine is cool before beginning installation.
• Disconnect the negative battery terminal.
• Clean the area around the old sensor before removal to prevent debris from entering the engine.
• Use the correct size deep socket or oil pressure switch socket for removal and installation.
• Verify if a gasket or thread sealant is required for your specific application.
• Tighten the new sensor to the manufacturer's recommended torque specification to prevent leaks and damage.