Wilwood Master Cylinder 1-1/8" Bore Black E-Coat with Adjustable Proportioning Valve

Wilwood has packaged the popular Aluminum Tandem Chamber Master Cylinder with the Combination Proportioning Valve, mounting bracket, fluid tubes and mounting hardware in a kit. Tandem Master Cylinder represents the latest in refinements in brake pressure actuation and fluid control. The combination proportioning valve substantially simplifies wiring and brake proportioning adjustments on vehicles with custom brake systems. The combination block maintains full isolation between front and rear fluid circuits and is specifically designed to accompany the Tandem Chamber Master Cylinder. The combo valve and bracket are black E-coated for a performance look and long lasting durability. Stainless steel fluid tubes are precision bent with preinstalled plated steel tube nuts for a simple bolt-on installation between the Combination Proportioning Valve and the Wilwood Tandem Master Cylinder. Stainless steel button head fasteners thread into the bracket for a simple installation and years of durable, rust-free performance. Simply connect the fluid lines, bleed the system, and you're finished.

Wilwood’s Tandem Aluminum Master Cylinder features a 1-1/8” bore size and a black e-coat finish for a long lasting great look!  The 1-1/8” bore is designed for use primarily with power brake applications, and works well with either vacuum boosters or hydroboost systems.  The stroke is set at 1.10” with a volume ratio of 2:1 between the primary and secondary chambers.  Machined from high-pressure aluminum die castings, each master cylinder weighs only 3lbs, a 75% weight savings over most cast iron OE type master cylinders.  Not only are these great at stopping your rig, they will also help dress up the engine compartment!

This master cylinder kit includes the proportioning valve, and is an adjustable style!  Front reservoir feeds front brakes, rear reservoir feeds rear brakes.

Outlets of the master cylinder are 1/2-20, and include short hardlines that go from those ports to the inlets of the proportioning valve.  

Bottom of Proportioning Valve ports are all 3/8-24 (no adapters included for the proportioning valve ports to change size, those would have to be sourced elsewhere).  Kit includes adapters for the master cylinder to go to 1/2-20 and 9/16-18.  If you are using this kit to replace a single-reservoir style master cylinder that had only one hardline coming out of it, then you will need to source a plug for one of the two proportioning valve outlets (3/8-24).

 

 

• Fits All with 1-1/8" bore master cylinders
• Black E-Coat Finish
• New (Not Rebuilt)!
• Cap Included
• Includes Adjustable Proportioning Valve