DynoJet Polaris RZR XP Turbo UTV Belt Life Extender Kit (28700002)

Upgrade your Polaris RZR XP Turbo with the DynoJet Belt Life Extender Kit, precision-engineered to improve CVT belt tension and eliminate factory inefficiencies. This kit replaces circlips and recessed washers, enhancing belt longevity while providing smoother shifting, better gear engagement, and consistent performance.

Key Benefits

Includes spacer shims of multiple thicknesses for fine-tuned belt tension
Maintains optimal gear ratios and eliminates creeping at idle
Improves drive gear engagement and shifting smoothness
Reduces belt wear, heat, and stress for longer service life
Replaces factory circlip and washer—no more guesswork

Fitment

Compatible with the following Polaris RZR models:

Polaris RZR XP 4 Turbo EPS: 2016, 2017, 2018, 2019
Polaris RZR XP 4 Turbo EPS DYNAMIX Edition: 2018, 2019
Polaris RZR XP 4 Turbo EPS Fox Edition: 2018
Polaris RZR XP 4 Turbo EPS LE: 2019
Polaris RZR XP 4 Turbo S: 2019, 2020
Polaris RZR XP Turbo EPS: 2016, 2017, 2018, 2019
Polaris RZR XP Turbo EPS DYNAMIX Edition: 2018, 2019
Polaris RZR XP Turbo EPS Fox Edition: 2018
Polaris RZR XP Turbo EPS LE: 2019
Polaris RZR XP Turbo S: 2018, 2019, 2020
Polaris RZR XP 4 Turbo: 2019, 2020
Polaris RZR XP 4 Turbo S Velocity: 2020
Polaris RZR XP Turbo: 2020
Polaris RZR XP Turbo S Velocity: 2020

Note: EM Code 6 - Vehicle emissions not applicable.

Customer Reviews

DynoJet Polaris RZR XP Turbo UTV Belt Life Extender Kit
Rated 4.7 out of 5 stars from 14 verified riders

“Fixed the creeping at idle and gave me smoother gear changes. Easy install!” — Cody B.
“Belt lasted over 800 miles in dunes. Huge improvement over stock tension setup.” — Megan H.