WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Wilwood adjustable proportioning valves let you dial in front-to-rear brake bias by reducing rear line pressure, which is a must after a disc brake swap or big-brake upgrade so the rear doesn't lock first.
Highlights:
Forged billet body, adjustable from 100-1000 PSI, up to a 57% drop in rear line pressure
Knob style: fine-thread knob for precise setting. Lever style: six click positions for quick changes
Combination valve: one block with the adjustable rear valve, front split outlets and a brake light switch port, keeping front and rear circuits fully separate
Bracket kits: combination valve, black E-coat bracket and pre-bent stainless lines that bolt under a Wilwood aluminum tandem master cylinder (260-9439, 260-13375, 260-8555, 260-8556)
Which one? Install the valve in the rear brake line only. The 1/8 NPT knob valve comes with 3/8-24 inverted flare fittings that fit most domestic 3/16" hard lines. The 3/8-24 IF and M10 versions have the ports machined in, so no adapters are needed. LH bracket = valve on the driver side of the master cylinder, RH = passenger side.
Fitment notes: Universal; works with any tandem master cylinder. The bracket kits fit Wilwood aluminum tandem master cylinders only. For Wilwood compact tandem master cylinders, choose a valve kit on that listing.
Part #: 260-8419, 260-10922, 260-12627, 260-8420, 260-11179, 260-13190, 260-15048
