The Texas Speed M12 x 1.5 Low Profile Metric Port Plug seals an unused M12 x 1.5 threaded port on a fuel rail, oil cooler adapter, sensor boss or other metric-threaded component. The low profile head keeps the plug close to the surface in tight areas, and a sealing washer is included.
Texas Speed machines its caps and plugs from 6061 aluminum to tight tolerances and finishes them in black anodizing for corrosion resistance. They are compatible with most fuels, solvents and oils, prevent leaks and keep contaminants out of open ports.
Specifications
- Thread size: M12 x 1.5 metric
- Style: Low profile port plug with sealing washer
- Material: 6061 aluminum
- Finish: Black anodized
- Compatibility: Most fuels, solvents and oils
- Quantity: Sold individually
- Part number: TSP-M12x1.5 (Texas Speed 25-M12x1.5, SL814CW-M1215)
FAQ
What is the Texas Speed M12 x 1.5 low profile port plug used for?
It seals an unused M12 x 1.5 metric threaded port, such as a sensor or feed port on a fuel rail, oil adapter or block, with the included washer providing the seal.
What is the plug made of?
Texas Speed machines the M12 x 1.5 plug from 6061 aluminum and black anodizes it, which resists corrosion from fuel, oil and the elements.
Is the plug compatible with fuel and oil?
Yes. Texas Speed states its caps and plugs are compatible with most fuels, solvents and oils, so the plug can be used in fuel system and oil system ports.
Does the plug come with a washer?
Yes. The M12 x 1.5 low profile port plug ships with a sealing washer, so no additional washer is required for installation.
Is this a universal part?
Yes. The plug fits any M12 x 1.5 metric threaded port regardless of vehicle, so it is listed as a universal fitting rather than a vehicle-specific part.

