GM Oil Pressure Sensor Replacement for Buick Regal Chevrolet with OE Numbers 12573107 12567323

This oil pressure sensor serves as a critical monitoring component for specific General Motors engines, particularly the 3.8-litre V6 units found in Buick Regal and various Chevrolet models. It is manufactured as a direct replacement part, matching the original equipment specifications for fit, electrical connection, and function. The sensor's primary role is to measure the engine's oil pressure, providing essential data to the vehicle's onboard computer (ECU) and illuminating the dashboard warning light if pressure falls outside the safe operating range. Correct operation of this sensor is vital for engine health, as low oil pressure can lead to increased wear and potential damage. This unit is supplied individually, ready for installation by a qualified technician using the correct OE part number for verification.

Features and Construction

This replacement sensor is built to meet the specifications required for reliable performance in the demanding environment of a modern engine bay. Its design prioritises a precise electrical signal output and a secure physical seal against the engine block.

Material and Build

The sensor is constructed from materials engineered to withstand high temperatures, vibration, and exposure to engine oil. The housing typically combines robust plastics and metals to protect the internal pressure-sensing element. The electrical connector is designed to match the original vehicle's wiring harness, ensuring a secure, weather-resistant connection that transmits an accurate signal to the instrument cluster and engine control unit without interference.

Size and Practical Fit

The sensor's physical dimensions and thread specifications are manufactured to match the original GM component it replaces. This ensures it screws correctly into the designated port on the engine block, typically on the oil filter housing or main gallery, and creates a proper seal to prevent oil leaks. The key practical detail is the list of compatible OE part numbers—12573107, 12567323, 12562230, 12614969, 12616646—which must be cross-referenced with the vehicle's original part to confirm a correct fit before purchase and installation.

Uses and Placement

This sensor has a dedicated function within the vehicle's lubrication and monitoring systems. Its correct operation directly informs both the driver and the vehicle's computer about a fundamental aspect of engine condition.

Event or Professional Use

For professional mechanics and enthusiasts performing engine repairs or maintenance, this sensor is a standard service item. It is commonly replaced during major services, engine rebuilds, or when diagnosing an illuminated oil pressure warning light or an inaccurate gauge reading. Verifying the correct OE part number against the vehicle's VIN or the old sensor is a necessary step in the professional installation process to ensure system compatibility and accurate post-repair diagnostics.

Everyday Home Use

For the vehicle owner, a functioning oil pressure sensor provides peace of mind during daily driving. The dashboard warning light is a primary alert system for low oil pressure, which can be caused by issues like low oil level, a failing oil pump, or a blockage. Replacing a faulty sensor restores this vital alert function, helping to prevent engine damage. It is a component that, while not replaced frequently, is essential for long-term engine reliability when wear or failure occurs.

Benefits and Buying Value

The value of this component lies in its role in preserving engine health and its design as a direct, no-modification-required replacement for the original factory part.

Reuse and Low Maintenance

The sensor itself is not a maintainable item; it is a sealed unit replaced upon failure. Its value in reuse comes from enabling the continued reliable operation of the engine it monitors. By providing accurate data, it allows the engine management system to operate optimally and alerts the driver to problems, supporting proactive maintenance that can extend engine life. A correctly functioning sensor eliminates false warning lights and inaccurate gauge readings that can lead to unnecessary concern or missed genuine faults.

Why Choose This Product

This sensor is specified for its direct compatibility with listed GM OE part numbers and applicable vehicle models like the Buick Regal. Choosing a part that matches these original specifications ensures correct thread fit, proper sealing to prevent oil leaks, and accurate electrical signal output for the dashboard and ECU. This avoids the potential issues of generic sensors that may require adaptors, produce incorrect readings, or not fit correctly, which could lead to further mechanical problems or diagnostic headaches.