The answer to IVA compliance for Girling style master cylinders.

Nylon screw-on cap fits 1.75" diameter x 8 TPI pitch buttress thread.

Internal float with level switch.

For dual circuit systems use two, wired in parallel.

For IVA you’ll require warning light on dash and a remote means of testing it.

This can be the handbrake switch or just a small push button switch next to the light. 

The cap fits on a thread of approx 44mm and the depth of the sensor bowl is 50mm

NOTE: The float and switch assembly can be easily separated from the threaded ring.

With a little ingenuity it can be bonded into your own non-IVA cap. We recommend using a two-part epoxy adhesive.

IVA BRAKE FLUID RESERVOIR CAP WITH PLUG AND FLY LEADS #FLCAP2