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Disc Brake Dual Reservoir Master Cylinder Kit
Fits 41-71 MB, GPW, CJ-2A, 3A, 3B, 5, M38, A1

Disc Brake Dual Reservoir Master Cylinder Kit
Fits 41-71 MB, GPW, CJ-2A, 3A, 3B, 5, M38, A1

New Dual Reservoir Master Cylinder Conversion Kit for DISC BRAKES ONLY

This kit is an important safety upgrade from a single reservoir braking system.

The kit includes a dual reservoir master cylinder, mounting brackets, brake light and all required fasteners and instructions.

The proportioning valve has a brake light switch built in the top.

This master cylinder kit is intended to install to your Jeep withouth cutting or grinding. You will need a 3/8" drill bit, a double flare tool, or a buddy with a double flare tool to modify your existing brake lines. You will retain your factory original master cylinder bracket. Its as simple as it gets!!!

FOR VEHICLES WITH FRONT DISC CONVERSION ONLY

FOR FOUR WHEEL DRIVE VEHICLES ONLY.

Helpful Guides and Illustrations:
Dual Reservoir Conversion Kit - Install Guide
Propotioning Valve - Install Instructions

For vehicles with original 9" drum brakes

Fits:
41-45 MB
41-45 GPW
46-49 CJ-2A
49-53 CJ-3A
53-64 CJ-3B
55-66 CJ-5
50-52 M38
52-66 M38A1

Item # Price
376896
$374.00

Availability: In stock

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Questions & Answers

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Questions: Is your MC set up with a 2 lb. residual pressure valve or does it need to be added & purchased separately? Thanks
Question By: J.W. Heater on Apr 30 2018 1:46 AM
It comes with a external prop. valve. Keep scrolling thru the photos, we have an image of it as well.
Answer By: Willys Jeep Parts Tech on Apr 30 2018 5:59 AM
Questions: On the lid gasket/diaphragm does the flat side of the gasket face down (fluid side) or up (lid side)?
Question By: TIM COONS on Feb 26 2018 6:55 AM
It faces down. Thanks
Answer By: Willys Jeep Parts Tech on Feb 26 2018 5:35 AM
Questions: I have a 68 CJ5 with 10" drum brakes front and rear. I have the dual reservoir master cylinder (stock) now. I am adding later model CJ5 disc brake front axle. will this work or does my current master cylinder work by adding the disc/drum proportioning valve? I am not adding power booster.
Question By: Shawn on Nov 29 2017 4:19 AM
You may be able to add the prop valve with your current set up. The 376896 will work for you too. Email mike@kaiserwillys.com and i can try to help as well.
Answer By: Willys Jeep Parts Tech on Nov 29 2017 5:57 AM
Questions: HELLO I HAVE A 1959 CJ3B BUT IT'S NOT A DISC BRAKE. THE BRAKE SYSTEM IS ORIGINAL. WHAT UPGRADE KIT CAN I USE TO IMPROVE
Question By: Alexis Heredia on Apr 24 2017 5:29 PM
805223-CJDUAL is for drum / drum brakes or we have a booster kit part number: 805200
Answer By: Willys Jeep Parts Tech on Apr 24 2017 11:31 AM
Questions: I bought this kit and the plunger part is too long. Is there a shorter one? Or, do I need to cut it down? I screwed it all the way in and the body hits the brake pedal, but still needs to come forward about an inch or two.
Question By: Christopher Shaw on Jan 15 2017 5:33 PM
Please call us toll free - we can walk you thru the install. Your plunger is adjustable and we provide the proper parts.
Answer By: Willys Jeep Parts Tech on Jan 16 2017 5:43 AM
Questions: We bought the disc brake kits for both front and rear of a 61 cj5. got master cyl and porporion valve. doe this need the porp valve with disc on both front and rear?
Question By: daryl bensinger on Dec 29 2016 3:30 PM
Only one prop valve is required. We sell different versions depending if your Disc/Drum or Disc/Disc set up.
Answer By: Willys Jeep Parts Tech on Dec 29 2016 8:06 AM
Questions: I have a 46 CJ2a and want to convert front and back to disc. Item 376896 Dual reservoir master cylinder states only for front disc conversions only. Will this work with front and back disc conversion?? Mike
Question By: Mike Speck on Jul 18 2016 9:29 PM
If you order it together we can make it set up for Disc/Disc brakes. Please call us toll free. We are happy to help out with.
Answer By: Willys Jeep Parts Tech on Jul 19 2016 5:33 AM
Questions: does this kit come with the proportioning valve
Question By: matt on Jul 13 2016 6:34 PM
Yes, you can scroll thru the photos and see it as well and in install instructions.
Answer By: Willys Jeep Parts Tech on Jul 14 2016 5:44 AM
Questions: I have a 1948 CJ 2A Willy's Jeep. I have upgraded to 11 in CJ 5 drum brakes in the front and have the stock 9 in drums in the back. I am using the stock single reservoir master cylinder ... having a little trouble stopping. Will your dual reservoir master cylinder help mean this area?? Thanks for your help.
Question By: kevin on May 31 2016 2:50 AM
Yes, you should be ok with your set up and those brakes you currently have on there.
Answer By: Willys Tech on May 31 2016 5:52 AM
Questions: Will this work if both front and rear axles are converted to disc brakes, or is it only for front disc with rear drum brakes?
Question By: Chris McGinnis on May 29 2016 3:34 PM
This is for a Disc/Drum set up. We can do one at the same price for Disc/Disc set up. Call us toll free.
Answer By: Willys Tech on May 31 2016 5:47 AM
Questions: Does this fit the stock brake switch?
Question By: Anonymous on Apr 18 2012 12:00 AM
Yes you can, you just have to line it in when you make your brake lines.
Answer By: Willys Tech on Apr 19 2012 12:00 AM
Questions: Does this fit in stock location, where single piston cylinder is located?
Question By: Cole on Sep 22 2011 12:00 AM
Yes this fits on the drivers side frame by the brake pedal in the original position.
Answer By: Willys Tech on Sep 22 2011 12:00 AM