« Back to product
Dagoberto B.
mi wrangler esta con llanta 35 dana 35 adelante y dana 44 atras le sirve a mi jeep?
Sí, este kit le sirve perfectamente a tu Jeep Wrangler JK 2016 con llantas de 35 pulgadas, aunque tus ejes sean diferentes a los que menciona la descripción original (Dana 35 adelante y Dana 44 atrás).
Mejora de Frenado con Llantas 35": Al instalar llantas más grandes de 35 pulgadas, el sistema de frenos de fábrica sufre mayor estrés y el pedal se siente más esponjoso. Este kit incluye un cilindro maestro de 1-1/8 pulgadas y un booster de doble diafragma que incrementan significativamente la presión hidráulica y la fuerza de frenado.
Compatibilidad: Está diseñado específicamente para los modelos Jeep Wrangler JK (2015-2018) con transmisión automática, mejorando la seguridad sin importar si mantienes los ejes de fábrica o realizas modificaciones.
Mejora de Frenado con Llantas 35": Al instalar llantas más grandes de 35 pulgadas, el sistema de frenos de fábrica sufre mayor estrés y el pedal se siente más esponjoso. Este kit incluye un cilindro maestro de 1-1/8 pulgadas y un booster de doble diafragma que incrementan significativamente la presión hidráulica y la fuerza de frenado.
Compatibilidad: Está diseñado específicamente para los modelos Jeep Wrangler JK (2015-2018) con transmisión automática, mejorando la seguridad sin importar si mantienes los ejes de fábrica o realizas modificaciones.
Gene W.
Which part of this kit makes it not compatible with a 2008 jeep jku?
Technically, the Mopar P5160050 Brake Master Cylinder & Booster kit is physically compatible with a 2008 Jeep Wrangler JK/JKU, provided it is an automatic transmission model.
Mopar and many catalog listings officially label this kit for 2015–2018 models because of a mid-generation rolling change in factory part numbers and minor revisions to brake line fittings/electronic sensor connectors across the 2007–2018 JK run. However, the physical bolt pattern on the firewall and the brake pedal pushrod assembly are identical across all 2007–2018 automatic JKs.
If you are running into compatibility roadblocks, it usually comes down to one of these factors:
Transmission Type (The Main Limitation): This kit is designed strictly for automatic transmissions. On a manual 2008 JK, the factory clutch master cylinder draws its fluid directly from a shared port on the stock brake fluid reservoir. The J8 master cylinder reservoir included in this kit does not feature a clutch fluid feed port.
Brake Line Port/Fitting Minor Differences: Early JK models (like 2007–2011) sometimes require slight manipulation or gentle re-bending of the hard brake lines coming out of the ABS module to align cleanly with the larger J8 master cylinder ports, as the physical body is slightly larger.
ESP / Sensor Wiring: Depending on the exact production date of the 2008 model, the electrical connector or check-valve setup on the brake booster vacuum switch can occasionally differ slightly from later model years, requiring minor reuse or adaptation of factory wiring connectors.
Mopar and many catalog listings officially label this kit for 2015–2018 models because of a mid-generation rolling change in factory part numbers and minor revisions to brake line fittings/electronic sensor connectors across the 2007–2018 JK run. However, the physical bolt pattern on the firewall and the brake pedal pushrod assembly are identical across all 2007–2018 automatic JKs.
If you are running into compatibility roadblocks, it usually comes down to one of these factors:
Transmission Type (The Main Limitation): This kit is designed strictly for automatic transmissions. On a manual 2008 JK, the factory clutch master cylinder draws its fluid directly from a shared port on the stock brake fluid reservoir. The J8 master cylinder reservoir included in this kit does not feature a clutch fluid feed port.
Brake Line Port/Fitting Minor Differences: Early JK models (like 2007–2011) sometimes require slight manipulation or gentle re-bending of the hard brake lines coming out of the ABS module to align cleanly with the larger J8 master cylinder ports, as the physical body is slightly larger.
ESP / Sensor Wiring: Depending on the exact production date of the 2008 model, the electrical connector or check-valve setup on the brake booster vacuum switch can occasionally differ slightly from later model years, requiring minor reuse or adaptation of factory wiring connectors.
Jack R.
Does this kit come with the fluid reservior?
No, it does not.
Charlie T.
Is this the "J8" master/booster?
This is the Mopar J8 Master Cylinder and Brake Booster JK. Thank you for the question.
SonicBlue X.
Which reservoir fits this combo?
68048758AA Reservoir. Thanks for your inquiry.
Ismail S.
I have 2015 rubicon unlimited with power stop truck and trow brake upgrade. Pedals feel soft. Will this help that?
Yes, it will.
Anthony R.
Is this compatible with a 2011 JK ?
No, this is not compatible with the earlier models 2007-2014
Colby L.
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.
Mark B.
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.
Eric S.
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.