ACT JP4-HDSS Heavy-Duty Clutch Kit for 2012–2013 Jeep Wrangler JK

JP4-HDSS kit features ACT's highly regarded Heavy Duty pressure plate and most popular street disc delivering generous torque capacity, smooth precise feel, quiet operation and increased toughness to withstand the rigors of spirited street and off-road use. ACT’s exclusive diaphragm design increases clamp load, reduces deflection and maximizes clutch life. All diaphragms endure a four-stage heat-treating process for unparalleled performance. ACT precision pressure plate cover stampings provide rigidity and consistency while precision machined pressure plate castings absorb heat. ACT’s performance street discs boast quality parts throughout with robust center sections, premium organic friction materials for exceptional wear and improved heat capacity which are steel-backed for greater burst strength and durability. HD-O/Perf Street Sprung Light to moderate pedal effort, smooth positive engagement, OE to mild gear rattle, good driveability;Longer friction life, extended by ACT's exclusive diaphragm design, increased durability and heat capacity; Carefully engineered, precisely assembled, accurately balanced, with superior organic friction materials for heat tolerance and reduced fade, premium bearings and hardware; Recommended for street or off-road use; 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability, key areas induction hardened for longer life.

• "Excellence in Performance", backed by the best one-year warranty in the industry!

The ACT JP4-HDSS Heavy-Duty Clutch Kit is engineered for Jeep Wrangler JK applications requiring increased torque capacity, dependable engagement, and long-term durability. This kit combines ACT’s Heavy Duty pressure plate with a performance street sprung disc to provide a smooth, precise pedal feel and positive engagement for spirited street and off-road driving. Its organic friction material supports consistent operation, improved heat capacity, and reduced fade under demanding conditions.

ACT’s exclusive diaphragm design increases clamp load, minimizes deflection, and helps maximize clutch service life. The diaphragm is heat-treated through a four-stage process for consistent performance, while the pressure plate cover and precision-machined casting provide rigidity, balance, and effective heat absorption. The disc features a robust center section, steel-backed friction materials, premium bearings, and durable hardware for improved strength and reliability.

The JP4-HDSS is carefully engineered, precisely assembled, dynamically computer balanced, and 100% clamp-load tested to support smooth high-RPM operation. It is designed for light to moderate pedal effort, quiet operation, OE-to-mild gear rattle, and excellent street driveability. Recommended for street and off-road use, this ACT clutch kit is backed by a one-year warranty. It fits select 2012–2013 Jeep Wrangler models; verify vehicle-specific application details before installation.

What's Included

• Heavy Duty pressure plate
• Performance street sprung clutch disc
• Premium bearings and installation hardware

Product Specifications and Technical Data

• Brand: ACT
• Part Number: JP4-HDSS
• Clutch Type: Heavy-duty performance street sprung clutch kit
• Disc Material: Premium organic friction material
• Pressure Plate Type: Heavy Duty diaphragm design
• Recommended Use: Street and off-road driving
• Pedal Effort: Light to moderate
• Warranty: One-year manufacturer warranty

Features:

• Heavy-duty pressure plate: Increases clamp load and torque capacity for demanding street and off-road use.
• Performance street sprung disc: Delivers smooth, positive engagement with excellent everyday driveability.
• Advanced diaphragm design: Reduces deflection and helps extend clutch life under repeated use.
• Heat-resistant organic friction material: Improves wear resistance, heat capacity, and fade control.

Fitments:
2012 Jeep Wrangler Rubicon
2012 Jeep Wrangler Sahara
2012 Jeep Wrangler Sport
2012 Jeep Wrangler Unlimited Rubicon
2012 Jeep Wrangler Unlimited Sahara
2012 Jeep Wrangler Unlimited Sport
2013 Jeep Wrangler Rubicon
2013 Jeep Wrangler Sahara
2013 Jeep Wrangler Sport
2013 Jeep Wrangler Unlimited Rubicon
2013 Jeep Wrangler Unlimited Sahara
2013 Jeep Wrangler Unlimited Sport
2014 Jeep Wrangler Rubicon
2014 Jeep Wrangler Sahara
2014 Jeep Wrangler Sport
2014 Jeep Wrangler Unlimited Rubicon
2014 Jeep Wrangler Unlimited Sahara
2014 Jeep Wrangler Unlimited Sport
2015 Jeep Wrangler Rubicon
2015 Jeep Wrangler Sahara
2015 Jeep Wrangler Sport
2015 Jeep Wrangler Unlimited Rubicon
2015 Jeep Wrangler Unlimited Sahara
2015 Jeep Wrangler Unlimited Sport
2016 Jeep Wrangler 75th Anniversary
2016 Jeep Wrangler Rubicon
2016 Jeep Wrangler Sahara
2016 Jeep Wrangler Sport
2016 Jeep Wrangler Sport S
2016 Jeep Wrangler Unlimited 75th Anniversary
2016 Jeep Wrangler Unlimited Rubicon
2016 Jeep Wrangler Unlimited Sahara
2016 Jeep Wrangler Unlimited Sport
2016 Jeep Wrangler Unlimited Sport S
2017 Jeep Wrangler Rubicon
2017 Jeep Wrangler Sahara
2017 Jeep Wrangler Sport
2017 Jeep Wrangler Unlimited Rubicon
2017 Jeep Wrangler Unlimited Sahara
2017 Jeep Wrangler Unlimited Sport
2018 Jeep Wrangler JK Rubicon
2018 Jeep Wrangler JK Sahara
2018 Jeep Wrangler JK Sport
2018 Jeep Wrangler JK Sport S
2018 Jeep Wrangler JK Unlimited Rubicon
2018 Jeep Wrangler JK Unlimited Sahara
2018 Jeep Wrangler JK Unlimited Sport
2018 Jeep Wrangler JK Unlimited Sport S

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1