A ABIGAIL Oil Pressure Sensor for GM Trucks & SUVs — D1846A 12677836 Compatible, Green Socket Kit with 1 1/16" Socket

The A ABIGAIL 12677836 oil pressure sensor is a direct-replacement pressure switch that monitors engine oil pressure and sends accurate signals to your vehicle’s gauge or computer.

This sensor kit includes the pressure switch, a protective filter, and a dedicated 1 1/16" socket (fits 3/8" drive or 1 1/8" hex wrench) designed to simplify installation on compatible GM trucks and SUVs. Engineered to meet OEM dimensions and electrical fitment, the D1846A-style sensor replaces several factory part numbers so you can restore reliable oil pressure reporting after a failed switch.

Which vehicles and engines is this sensor compatible with?

This A ABIGAIL sensor fits a wide range of GM models from the late 1990s through the 2000s when equipped with the matching pressure switch location and thread. Common applications include Chevy Silverado, Tahoe, Suburban, Avalanche, Express, Corvette, Impala, Trailblazer and GMC Sierra, Yukon, Savana, Envoy, plus Cadillac CTS and Escalade listed in the compatibility notes.

• Direct compatibility examples: 2003–2008 Chevy Silverado 1500/2500/3500 (4.8L, 5.3L, 6.0L)
• Also fits: 2003–2008 GMC Sierra, Yukon, Savana and Envoy models with matching engines
• Corvette and high-performance models listed: 1997–2008 with specified V8 displacements
• Always cross-check your OEM part number (e.g., 12677836, D1846A) before ordering

How is the kit packaged and what tools come with it?

The package supplies the sensor, a protective mesh filter and a specialized socket to remove and install the pressure switch without cutting connectors or improvising tools. The included socket is sized for a 1 1/16" hex and accepts a 3/8" drive or a 1 1/8" hex wrench for leverage.

• One oil pressure sensor and one protective filter included
• Specialty socket: 1 1/16" hex, fits 3/8" drive or 1 1/8" wrench
• Prewired connector style matches OEM electrical plug for plug-and-play
• Installation reduces risk of connector damage versus improvised sockets

Does this replace OEM part numbers and meet fitment expectations?

The sensor is designed as an OEM-style replacement and lists many interchangeable numbers so it will meet original fit, form and function when matched correctly. It replaces a broad set of part numbers used across Buick, Chevrolet, GMC, Pontiac and Cadillac platforms—but always confirm with your vehicle’s VIN or service manual.

• Interchange list includes: 12556117, 12614969, 12616646, D1846A and others
• Manufactured to match factory electrical and thread specifications
• Built for durability and consistent signal transmission to gauges/modules
• Contact customer service for troubleshooting, replacement, or refund

How do I know when to replace the oil pressure sensor?

Typical signs of a failing pressure switch include intermittent oil pressure warnings, a stuck gauge reading, or diagnostic trouble codes related to oil pressure circuit faults. If the sensor gives inconsistent readings or fluid contamination is suspected, replacing the switch with a known-good unit restores accurate monitoring.

• Watch for erratic gauge behavior or persistent oil pressure warnings
• Check for oil leaks around the sensor mounting thread
• Scan codes for oil-pressure-sensor or circuit fault indicators
• Use the included socket to remove and replace the sensor cleanly

Who is this for: The A ABIGAIL 12677836 oil pressure sensor kit is aimed at DIY mechanics, independent repair shops, and owners of GM trucks and SUVs from the listed model years who need a reliable, OEM-style switch replacement. If you need a plug-and-play pressure sensor with the right socket for proper installation and a filtered inlet, this kit provides the parts and tool to complete the job with minimal fuss. Always verify vehicle compatibility against the listed interchange numbers or your VIN before purchase.