Fits 2016-Up models with the BOSS secondary clutch. This includes 2016-23 XP 1000, RZR 900, RZR S/Trail 1000, and Generals. **Does NOT fit 2024 RZR XP 1000*
Part number: 108-1038
- 2 washers stacked in the helix allow for less spring bind and smoother shifting
- Less harmonic noise from the spring
- Increases spring rate by 10-15lbs peak on average, this can help eliminate slipping if more spring tension was needed


