The is the legendary Hurst® Roll/Control®, Line/Loc® that drag racers have been using for decades to heat up the tires in the burnout box for maximum traction before making a pass down the track is also used to provide positive locking action to the front wheels of race cars, reducing the chance of "Rolling the Lights" when staging. This universal solenoid allows you to design, fabricate and build the valve into your braking system the way you want, without un-necessary parts that you may not need. Rigorous testing has proved a 1/100,000 of a second release time and vibration tests have seen up to 30 G's applied without mechanical failure. Adaptable to most domestic and import hydraulic brake systems. Advanced quality design stainless steel valve assembly for ultimate corrosion resistance. Fully enclosed epoxy molded electrical coil for reliability. Attractive finned aluminum housing helps dissipate heat. Wider lightweight base provides better mounting stability 150 micron screen filtered ports to prevent contamination. Field serviceable for cleaning or rebuilding. Extra threaded port for separate bleeder or brake line pressure gauge.