Description
If you’re running an Arctic Cat M 8000 and want sharper throttle response with consistent engagement across the RPM band, the SLP Primary Spring 40-75 is a direct bolt-on upgrade that delivers measurable improvements without breaking your setup. This shot-peened chrome-silicone spring resists fatigue and sagging under sustained high-RPM use—critical for sleds that see repeated abuse on the trail or in competition. You’ll notice tighter clutch engagement and more predictable power delivery, especially during aggressive acceleration.
- Chrome-silicone wire construction
- Shot-peened for fatigue resistance
- 40-75 lb. spring rate
- Arctic Cat M 8000 specific
- 2014–2015 model years
- Bolt-on installation
- Improves throttle response
- Optimized peak RPM performance
- MPN: 4075







