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Is this the "J8" master/booster?
This is the Mopar J8 Master Cylinder and Brake Booster JK. Thank you for the question.
Which reservoir fits this combo?
68048758AA Reservoir. Thanks for your inquiry.
I have 2015 rubicon unlimited with power stop truck and trow brake upgrade. Pedals feel soft. Will this help that?
Yes, it will.
Is this compatible with a 2011 JK ?
No, this is not compatible with the earlier models 2007-2014
I have a 2016 Jeep JK 6 Speed Manual looking for the right kit. You have anything that will help me there?
This kit is the same as P5160051 which can be used on manual transmissions but will require the clutch master cylinder to be relocated or replaced with an aftermarket option. The size of the new master cylinder included in these kits will collide with the clutch master cylinder on the manual transmissions.
I want to install a heavy duty brake kit on my very heavy 2018 JKU Rubicon with auto transmission. Do you recommend a kit with larger diameter piston calipers? And for a good pedal feel, does the 2018 JKU Rubicon need a larger master cylinder, larger reservoir and larger booster, or are the stock parts adequate to drive the lager calipers?
If you have a Rubicon then you have the maximum size brake rotors and pads available for Jeep, this larger booster and master cylinder would definitely increase the performance and stopping power.
I currently have a 6 speed Manual 2012 JKU with Powerstop Front & Rear Z36 Pad & Rotor Kit and want to upgrade to a larger Master Cylinder & Booster. What part# will fit the 6-speed manual?
Jeep does not offer a larger kit like this for the earlier JK's, but there was both a standard brake system and HD brake system. The booster that is used in the heavy duty brake system is 68091279AC. like used on the Rubicon.
I have installed dynatrac big brakes and looking to upgrade the booster and MC. I have a 2012 Jeep jk w/6 speed manual transmission. What booster and MC do I need for these larger brakes
For larger master cylinder (68048757AA), booster (68048755AA) and reservoir (68048758AA) please contact our sales, service team so we can special order them for you. These are parts that are original for the J8 Wrangler, and are also used in big brake kit P5160051 (for the JK Wranglers).
Is THIS the MC/Booster combo kit for $274 you recommend to use with the TERAFLEX Big-Brake-Kit upgrade for 2018 Wrangler JK? (Great brakes, but I STILL have a soft pedal)
No, you are looking for Teraflex 4303450. Click Here
Do you carry a Brake master cylinder and booster for a 2013 jk with Dana 60 axles?
The kit for the JK that is offered for 2013 is #P5160051AD. Not listed specifically for the Dana 60 axles, but offered as an upgrade to OE brakes.