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Black Friday Doorbuster Tandem Compact Master Cylinder & R/h Prop Valve,mopar 4-bolt,1 1/8",chrome Pro Version [Cn4XMKBc]

$42.99 $137.99 -69%

Brand New Wilwood Compact Tandem Master Cylinder with Chrome Finish, Right-Hand Bracket, Proportioning Valve, and 1-1/8" Bore Size. Compatible With Mopar 4 Bolt Pattern (Part #261-17799-P). Wilwood now makes a performance master cylinder with a flang

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Brand New Wilwood Compact Tandem Master Cylinder with Chrome Finish, Right-Hand Bracket, Proportioning Valve, and 1-1/8" Bore Size. Compatible With Mopar 4 Bolt Pattern (Part #261-17799-P). 

Wilwood now makes a performance master cylinder with a flange specifically for Mopar's unique four bolt pattern. The rectangular mounting flange of our Mopar Compact Tandem master cylinder matches the A-body, B-body and the E-body firewall mounts in the 1960's and 70's. Optional kits are available that include a combination valve with a hydraulic brake light switch, adjustable proportioning valve, bracket, and plumbing.

NOTE: High temperature brake fluid recommended for racing applications.

Fits:
  • Mopar:
    • 1960-1970s A-Body with 4 Bolt Firewall Mount
    • 1960-1970s B-Body with 4 Bolt Firewall Mount
    • 1960-1970s E-Body with 4 Bolt Firewall Mount
Specs:
  • Bore Size: 1-1/8"
  • Area (In²): 0.97
  • Stroke: 1.10
  • Outlets: 2
  • Material: Aluminum
  • Finish: Chrome
  • Res Type: Integral
  • Res Size (Oz): 7.8 / 4.7
  • Res Size(Cu In): 14.0 / 8.5

You can view and download the assembly/instruction booklet here.

What Our Customers Say

January 4, 2026

Absolutely no complaints!

A great product that is very handy.

- Gruffydd G..

January 4, 2026

Absolutely no complaints!

It’s a product that just makes sense.

- Lavinia C..

January 4, 2026

Absolutely no complaints!

Works without a flaw. A great experience.

- Isolde F..

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