The ACT 601060 XACT ProMass flywheel is built for the 2012-2018 Jeep Wrangler JK, delivering confidence-inspiring momentum over obstacles that's excellent for large tires, rock crawling, or towing, with reduced driveline slop compared to a dual-mass flywheel and no gear rattle. Heat-treated forging provides strength and toughness, and induction-hardened ring gear teeth maximize service life. The one-piece construction provides an efficient heat sink for the clutch with less chance of failure, eliminating the troublesome dual-mass design, warped inserts, or loose ring gears seen on factory flywheels. It is forged, CNC-machined, and dynamically computer-balanced for smoothness and reliability, and is recommended for street and off-road use.
WarrantyInstallation Instructions
Specifications:
- Construction: Heat-treated forged steel, one-piece design (replaces dual-mass)
- Ring Gear: Induction-hardened for maximum life
- Balancing: CNC-machined and dynamically computer-balanced
- Driveline: Reduced slop versus dual-mass flywheel, no gear rattle
- Recommended Use: Street and off-road use
- Warranty: 1-year ACT limited warranty
- Part Number: ACT601060
Vehicle Applications:
- 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
FAQ
What does a ProMass flywheel offer over a factory dual-mass flywheel?
ACT's ProMass is a one-piece, heat-treated forged flywheel that replaces the factory dual-mass design, reducing driveline slop and eliminating the warped inserts or loose ring gears that can develop on dual-mass units, while adding no gear rattle.
Is this flywheel good for off-roading and towing?
Yes, ACT recommends the ProMass for both street and off-road use, and it's built to deliver confidence-inspiring momentum over obstacles, which benefits large tires, rock crawling, and towing.
Why is the ring gear induction-hardened?
Induction hardening the ring gear teeth increases wear resistance so the starter ring gear holds up to repeated engagements over the life of the flywheel.
Does this flywheel fit the 2018 Jeep Wrangler JK?
Yes, ACT601060 covers the 2018 Wrangler JK Rubicon, Sahara, Sport, and Sport S trims (2- and 4-door), along with the 2012-2017 Wrangler JK generation trims and the 2016 75th Anniversary editions.
