The Texas Speed M14 x 1.5 Low Profile Metric Port Plug seals an unused M14 x 1.5 threaded port on a fuel rail, oil system component, sensor boss or other metric-threaded fitting. The low profile head stays close to the surface where clearance is limited, and a sealing washer is included.
Texas Speed machines its caps and plugs from 6061 aluminum to tight tolerances and black anodizes them for corrosion resistance. The plugs are compatible with most fuels, solvents and oils, prevent leaks and keep debris out of open ports.
Specifications
- Thread size: M14 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-M14x1.5 (Texas Speed 25-M14x1.5, SL814CW-M1415)
FAQ
What is the Texas Speed M14 x 1.5 low profile port plug used for?
It seals an unused M14 x 1.5 metric threaded port, such as a sensor or feed port on a fuel rail, oil component or block, with the included washer providing the seal.
What material is the M14 x 1.5 port plug?
Texas Speed machines the plug from 6061 aluminum and finishes it in black anodizing, which resists corrosion from fuel, oil and road exposure.
Can the plug be used with E85, gasoline and oil?
Yes. Texas Speed states its caps and plugs are compatible with most fuels, solvents and oils, so the plug is suitable for fuel and oil system ports.
Is a sealing washer included?
Yes. The M14 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 M14 x 1.5 metric threaded port regardless of vehicle, so it is listed as a universal fitting rather than a vehicle-specific part.

