Proflow OE, Brake Light Warning Switch, Suits Brake Master Cylinder, Proportioning Valve, Concours Replacement, Ford GTHO, XA/XB GT, Mustang, Holden

Concours-correct brake warning switch built to original factory specification.

Activates brake warning light on circuit pressure drop
Fits master cylinder or proportioning valve depending on application
Correct replacement for Ford GTHO, XA–XF, and 67–72 Mustang
Suits popular GMH platforms including HQ–HZ and LH–LX
Factory-spec fitment for concours restorations and track builds

incl. GST · ships AU-wide

● In stockDispatched in 1–2 business days.

Specifications

On the spec sheet.

Spec sheet coming — contact support for full spec details.

Fitment

Will this fit?

Fitment data still being indexed for this product. Ask BuildBot for a fit-check against your vehicle.

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Why this part

Cheap generic switches rarely match the thread spec or pressure threshold of the original. That means false warnings — or no warning at all. The Proflow OE unit is built to factory tolerances for the listed applications. It seats correctly and reads accurately. At $68.20 it costs less than diagnosing an intermittent fault caused by a mismatched part.

Pairs well with