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Est. 1957
GReddy

GReddy Union Fitting 1/8PF-M12 P1.25

$18.94

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GReddy Union Fitting 1/8PF-M12 P1.25. Connects different size fittings in your custom plumbing.

Key Features

  • Includes one GReddy Union Fitting with 1/8 PF and M12 P1.25 threads.
  • Constructed from brass for good corrosion resistance.
  • Connects 1/8 PF parallel pipe threads to M12 P1.25 metric threads.
  • Useful for custom plumbing in engine bays for sensors or fluid lines.
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About this part

Product Details

This GReddy union fitting gives you one piece to connect a 1/8 PF (parallel thread) fitting to an M12 P1.25 (metric thread) fitting. It’s a straightforward adapter for custom plumbing setups where you need to join components with different thread types.

This fitting is made from durable brass, which is a common material for fuel and oil line fittings because it resists corrosion and is easy to work with. The M12 P1.25 side is a metric thread, often found on sensors or small oil feed lines, while the 1/8 PF side is a parallel pipe thread, commonly used for pressure sensors or gauges. Having this adapter on hand can save you time when fabricating custom lines for oil pressure, boost gauges, or other fluid transfer systems.

Specifications

Brand
GReddy
Manufacturer Part #
11900575

Frequently Asked Questions

GReddy Union Fitting 1/8PF-M12 P1.25

$18.94