Wilwood Master Cylinder Kit Tandem Aluminum Black With 7/8" Bore 1965-1973

Wilwood:
261-13272-BK
Wilwood Master Cylinder Kit Tandem Aluminum Black With 7/8" Bore 1965-1973 is rated 2.8 out of 5 by 4.
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Highlights

  • Direct Bolt On Upgrade
  • Includes Proportioning Valve
  • Die Cast Aluminum
  • Includes Necessary Hardware
MSRP $392.96
$363.85
You save 7%

Wilwood Black Aluminum Tandem Master Cylinder Kit with a 7/8" Bore Size for all 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972 or 1973 Mustangs.

Save yourself both time and money by purchasing this Wilwood Black Aluminum Tandem Master Cylinder Kit with a 7/8" Bore Size for your 1965-1973 Mustang. You'll get everything you need to upgrade your master cylinder and proportioning valve with a simple & easy installation process that will improve the performance of your classic Mustang drastically.

Kit Includes:
- Aluminum Tandem Chamber Master Cylinder
- Combination Proportioning Valve
- Mounting Bracket
- Fluid Tubes
- Mounting Hardware

Master Cylinder Features:
- Machined from High-Pressure Die Casting Aluminum
- Comes with Correct Pushrod & 7/8" Bore
- Black E-Coat Finish
- Lighter than Stock
- Fluid Outlet Ports on Both Sides of Bore
- Total Piston Stroke is Set to 1.10"
- Volume Ration of 2:1 Between Chambers
- Simple to Bolt On

Wilwood's Tandem Master Cylinder exemplifies the latest advancements in brake pressure & fluid control. This specific master cylinder is machined from high-pressure die casting of a premium aluminum alloy, making it almost 75% lighter than most cast iron OE master cylinders. It incorporates a slotted mounting flange that makes it easy to bolt onto the mount. Wilwood also includes the correct pushrod and 7/8" bore, while finished off with a black e-coating to help prevent any future rusting. This cylinder has a total piston stroke of 1.10" as well as a 2:1 volume ration between the primary and secondary chambers.

Combination Proportioning Valve Features:
- Specifically Designed to Work with This Master Cylinder
- Simplifies Mounting, Plumbing, Wiring & Brake Proportioning Adjustments
- Maintains Full Isolation Between Front & Rear Fluid Circuits
- Black E-Coat Finish

The Combination Proportioning Valve is specifically designed to work in parallel with the Master Cylinder in this kit. Wilwood's valve significantly simplifies your classic Mustang's plumbing, wiring, mounting and brake proportioning adjustments. It will maintain full isolation between the front & rear fluid circuits. The valve's body is coated with a black e-coating, just like the master cylinder.

When you purchase this kit, you'll also receive stainless steel fluid tubes that are precision bent with stainless steel tube nuts that come preinstalled for an easier installation process between he valve and the master cylinder. You'll also receive all of the necessary hardware required including stainless steel button head fastens that will thread into the black e-coated mounting bracket.

Please Note: This Master Cylinder Kit is fully compatible with Mustangs equipped with manual brakes. However, the 7/8" bore size will be too small to be used on power brake systems.

Replacing brakes are a necessity of owning any vehicle. However, while they will always wear out, the brakes on your Mustang don't need to wear out as fast when you install well engineered, high performance braking components, like those that are available from Wilwood. With CJ Pony Parts now offering the latest selection of brakes from Wilwood, you can find these parts at some of the best prices around.

What are you waiting for? Treat yourself by purchasing Wilwood's Black Aluminum Tandem Master Cylinder Kit with a 7/8" Bore Size for your 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972 or 1973 Mustang from CJ Pony Parts today!

Installation Difficulty

Moderate
Moderate

Intermediate skill is required for this installation.

Vehicle Fitment

This product will fit the following Mustang years:

Rated 4 out of 5 by from GOOD Performance upgrade. I had to get a new master cylinder this wilwood unit is a great way to upgrade and to add an adjustable proportional valve as well.
Date published: 2016-05-02
Rated 2 out of 5 by from Proportioning valve poorly located The bracket that mounts the proportioning valve in this kit has very little clearance with the upper clutch rod for my '66 mustang. I am still unsure whether or not I will be able to use it. If you have a manual transmission, don't buy this. Stick with a normal dual bowl cylinder with stock-located distribution block.
Date published: 2017-03-06
Rated 3 out of 5 by from Does not fit 70 Mach Manual Shifter Quality of parts was overall good, but lid arrived with blemishes. It does not fit my 70 Mach with manual trans as proportioning valve falls right where the clutch pedal rod comes through firewall. Might fit automatic cars, but definitely not manual transmission 70 Mustangs.
Date published: 2017-01-28
Rated 2 out of 5 by from Wilwood Tech Support is BAD Bought via CJ. Installed, no problem. New lines, etc. Master Cylinder leaked. Called Wilwood. They said I must had 'damaged it during installation' and needed to return to the to be re-build at $50 plus I pay to ship. Not the right answer for a new product. Haven't determined if this is in the recall lot. But why would then not send me a new Master Cylinder and I return the leaking one or the one in the recall lot and then return the original to them? That's the way most businesses work.
Date published: 2018-02-27
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I converted a 1966 Mustang from drum to disk brakes. The stopping power was very poor so I added a power booster. Big improvement but it's still impossible to lock up the brakes. Only 800-1000 psi at calipers. Why won't a 7/8" bore master cylinder help?

Asked by: JWKi
Generally speaking, if the master cylinder bore is too large, the driver will feel a very hard pedal feel with minimal pedal travel, and will have a difficult time generating the necessary pressure to effectively operate the brake system. If the master cylinder bore size is too small, the driver will be able to generate a lot of pressure, but the pedal may have an excessively long stroke or a very spongy feel. And if the bore size is way too small, the pedal or master cylinder may bottom out before enough volume is pumped to operate the calipers. The best advice would be to consult with the manufacturer of the brake system you will be using and work with them to pick the right size for your application.
Answered by: rk cjpp
Date published: 2019-03-15

I need a master cylinder to operate front disc brakes with out a booster on my 69 mustang

Asked by: Wozza
We offer this one. MC11378M
Answered by: rk cjpp
Date published: 2019-01-02

hi would this master cylinder work with a normal non adjustable proportion valve ?

Asked by: juzssc
You will have to use the adjustable prop valve that comes in the kit.
Answered by: rk cjpp
Date published: 2017-01-11

Hi, will this work if I buy and upgrade to wilwood discs front and rear

Asked by: DaveNz
Yes it will.
Answered by: rk cjpp
Date published: 2017-01-05

Will this work with disc front and drum rear brakes?

Asked by: DaveNz
Yes it will work.
Answered by: rk cjpp
Date published: 2019-06-17

Hi, do you use a power brake booster with this parts ? (the car is a mustang fastback with automatic transmission) my customer would like to have the braking of modern car. I will take wilwood caliper and disc kit conversion with this master cylinder

Asked by: jbc motorsport
This is a manual brake master cylinder it will not work on a power booster.
Answered by: rk cjpp
Date published: 2019-01-25

Is it possible to disassemble the Pushrod? Or is it rigidly mounted?

Asked by: Phil89
The pushrod is multiple pieces and adjustable.
Answered by: Rick CJs
Date published: 2016-10-13

Does the kit include the eyelet. I don't see it listed or included in the pictures

Asked by: Geren
This kit does come with the pushrod eyelet, the image was wrong.
Answered by: rk cjpp
Date published: 2019-01-25
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