Description
Precise Manufacturing = Peak Performance
Peak power, peak efficiency. For screamin' hi-performance on the track or on the trail. Ultimax XS is designed for high horsepower sleds delivering superior performance and longer belt life. XS features a specially formulated rubber compound found in no other snowmobile belt. One Year Warranty. Proudly made in the USA.
* Please Note: The belt dimensions provided are for reference only. These dimensions should not be used to determine product functionality. Ultimax belts are built to exacting specifications and inspected with calibrated equipment at specified tensions to assure strict dimensional compliance. Belt dimensions can vary from one manufacturer to another based on proprietary design information.
Peak power, peak efficiency. For screamin' hi-performance on the track or on the trail. Ultimax XS is designed for high horsepower sleds delivering superior performance and longer belt life. XS features a specially formulated rubber compound found in no other snowmobile belt. One Year Warranty. Proudly made in the USA.
* Please Note: The belt dimensions provided are for reference only. These dimensions should not be used to determine product functionality. Ultimax belts are built to exacting specifications and inspected with calibrated equipment at specified tensions to assure strict dimensional compliance. Belt dimensions can vary from one manufacturer to another based on proprietary design information.
Ultimax - XS Drive Belt (XS821)
fits the following vehicles:
fits the following vehicles:
Boondocker DS 850 E-TEC 2.5 154
2022
Boondocker DS 850 E-TEC 3.0 165
2022
Brutal Re 900 ACE Turbo R 2.5 154
2025
Rave GLS 850 E-TEC Turbo R 1.5 137
2025
Rave RE 600R E-TEC 1.5 137
2025
Rave RE 850 E-TEC 1.25 137
2024
Shredder DS 850 E-TEC 2.5 154
2023
Shredder DS 850 E-TEC Turbo R 2.5 154
2023
Shredder RE 850 E-TEC 3.0 165
2023
Shredder RE 850 E-TEC Turbo R 3.0 165
2023
Xterrain Brutal 850 E-TEC 2.4 154
2024
Xterrain Brutal 850 E-TEC 2.5 154
2023
Xterrain RE 850 E-TEC 1.6 146
2025
Xterrain RE 850 E-TEC Turbo R 1.6 146
2025
Xterrain RE 850 E-TEC Turbo R 2.0 146
2025
Backcountry 600 Sport REV-G4 EFI 1.6 146
2024
Backcountry 600 Sport REV-G4 EFI 2.0 146
2024
Backcountry 600R e-tec REV-G4 1.6 146
2023
Backcountry 600R e-tec REV-G4 2.0 146
2023
Backcountry 850 X e-tec REV-G4 1.6 146
2023
Backcountry 850 X e-tec REV-G4 2.0 146
2023
Backcountry 850 X-RS Turbo R e-tec REV-G5 1.5 146
2025
Backcountry 850 X-RS Turbo R e-tec REV-G5 2.0 146
2025
Backcountry 850 X-RS e-tec REV-G4 1.6 146
2023
Backcountry 850 X-RS e-tec REV-G4 2.0 146
2023
Backcountry 850 X-RS e-tec REV-G4 2.0 154
2023
Backcountry 850 X-RS e-tec REV-G4 2.5 154
2023
Backcountry 850 e-tec REV-G4 1.6 146
2023
Backcountry 850 e-tec REV-G4 2.0 146
2023
Expedition 1200 4-tec ES/R 156
2010
Expedition 1200 SE 4-tec ES/R 156
2010
Freeride 800 e-tec REV-XM RS R 137
2014
Freeride 850 Turbo R e-tec Hill Climb Edition REV-G5 2.5 154
2023
Freeride 850 Turbo R e-tec Hill Climb Edition REV-G5 3.0 154
2023
Freeride 850 Turbo R e-tec REV-G5 2.5 165
2023
Freeride 850 e-tec Hill Climb Edition REV-G5 2.5 154
2023
Freeride 850 e-tec Hill Climb Edition REV-G5 3.0 154
2023
Freeride 850 e-tec REV-G4 R 2.5 137
2020
Freeride 850 e-tec REV-G5 2.5 165
2023
GTX 600 LE e-tec REV-XR ES/R L/C 137
2009
Grand Touring 900 LE ACE REV-XR ES/R 137
2014
Grand Touring 900 LE ACE XS137
2015
Grand Touring 900 SE ACE REV-XS ES/R 137
2018
Grand Touring 900 Turbo R LE ACE REV-G4 ES/R 137
2022
Grand Touring LE 900 ACE REV-G4 1.25 137
2023
Grand Touring LE 900 ACE Turbo R REV-G4 1.25 137
2023
Grand Touring LE 900 ACE Turbo REV-G4 1.25 137
2023
MXZ 1200 Adrenaline
2010
MXZ 1200 Renegade 4-tec REV-XR R 137
2009
MXZ 1200 TNT 4-tec REV-XS ES/R 120
2016
MXZ 1200 X Renegade 4-tec REV-XR R 137
2009
MXZ 600 50th Anniversary e-tec REV-XP R 120
2009
MXZ 600 Adrenaline e-tec REV-XP R 120
2010
MXZ 600 Adrenaline e-tec REV-XP R L/C 120
2009
MXZ 600 Blizzard e-tec REV-G4 ES/R 129
2019
MXZ 600 R e-tec REV-G4 ES/R 129
2018
MXZ 600 Renegade e-tec REV-XP R 137
2009
MXZ 600 Sport ACE REV-XP R 120
2011
MXZ 600 X Renegade e-tec REV-XP R 137
2009
MXZ 600 X e-tec REV-XP ES/R 120
2012
MXZ 600 X-RS IRON DOG e-tec REV-XS ES/R 129
2020
MXZ 600 X-RS Racing Carb REV-XP R
2013
MXZ 600 X-RS Racing Carb REV-XP R 120
2012
MXZ 600 X-RS e-tec REV-XRS ES/R 120
2013
MXZ 600HOE X-RS Euro
2015
MXZ 600R Blizzard e-tec REV-G4 1.25 129
2023
MXZ 600R X e-tec REV-G5 1.5 129
2024
MXZ 600R X-RS Comp. Package e-tec REV-G5 R 1.25 137
2024
MXZ 600R X-RS Comp. Package e-tec REV-G5 R 1.6 137
2025
MXZ 600R X-RS e-tec REV-G4 1.5 129
2023
MXZ 600RS X-RS e-tec REV-G5 1,75 137
2024
MXZ 800 Renegade REV-XP R 137
2009
MXZ 800 TNT REV-XP R 120
2011
MXZ 800 TNT e-tec REV-XS R 120
2014
MXZ 800 X REV-XP R 120
2009
MXZ 800 X Renegade REV-XP R 137
2009
MXZ 800 X e-tec REV-XP ES/R 120
2012
MXZ 800 X e-tec REV-XP R 120
2011
MXZ 800 X e-tec REV-XS ES/R 129
2016
MXZ 800 X-RS REV-XP R 120
2010
MXZ 800 X-RS e-tec REV-XRS R 120
2013
MXZ 800 X-RS e-tec REV-XS RS ES/R 129
2017
MXZ 800 X-RS e-tec REV-XS RS R 129
2016
MXZ 850 Blizzard e-tec REV-G5 1.25 129
2023
MXZ 850 X e-tec REV-G5 1.5 129
2024
MXZ 850 X-RS Turbo R Comp. Package e-tec REV-G5 1.25 137
2025
MXZ 850 X-RS Turbo R Comp. Package e-tec REV-G5 1.5 137
2024
MXZ 850 X-RS e-tec Smart Shox REV-G5 1.5 129
2023
MXZ 850 X-RS with SAS e-tec REV-G4 ES/R 129
2022
Mach Z 900 Ace Turbo R REV-G4 ES/R 137
2022
RENEGADE 600 X IRON DOG e-tec REV-XS ES/R 137
2021
Renegade 600 Backcountry X e-tec REV-XP ES/R 137
2012
Renegade 600 Backcountry X e-tec REV-XP R 137
2011
Renegade 600 Backcountry X e-tec REV-XS ES/R EURO
2015
Renegade 600 Backcountry e-tec REV-XS R 137
2013
Renegade 600 X e-tec REV-XP ES/R 137
2012
Renegade 600 X-RS Comp. Package e-tec REV-G4 ES/R 137
2022
Renegade 600R Adrenaline Enduro e-tec REV-G5 1.25 137
2025
Renegade 600R Adrenaline e-tec REV-G4 1.25 137
2023
Renegade 600R Enduro e-tec REV-G4 1.25 137
2023
Renegade 600R X e-tec REV-G4 1.25 137
2023
Renegade 600R X e-tec REV-G4 1.5 137
2023
Renegade 600R X-RS Comp. Package e-tec REV-G4 R 1.25 137
2023
Renegade 800 Backcountry REV-XP R 137
2011
Renegade 800 Backcountry X REV-XP R 137
2010
Renegade 800 Backcountry X e-tec REV-XS ES/R 137
2015
Renegade 800 Special REV-XP R 137
2011
Renegade 800 X REV-XP R 137
2010
Renegade 800 X e-tec REV-XP ES/R 137
2012
Renegade 800 X e-tec REV-XP R 137
2011
Renegade 800R Backcountry
2010
Renegade 850 Adrenaline Enduro e-tec REV-G5 1.25 137
2025
Renegade 850 Adrenaline e-tec REV-G5 1.25 137
2023
Renegade 850 Backcountry X e-tec REV-G4 R 146
2018
Renegade 850 Backcountry e-tec REV-G4 R 146
2018
Renegade 850 Enduro e-tec REV-G4 1.25 137
2023
Renegade 850 X e-tec REV-G5 1.25 137
2023
Renegade 850 X e-tec REV-G5 1.5 137
2023
Renegade 850 X-RS e-tec REV-G5 1.25 137
2023
Renegade 850 X-RS e-tec REV-G5 1.5 137
2023
Renegade 850 X-RS e-tec REV-XS ES/R 137
2019
Renegade 850 X-RS e-tec Smart Shox REV-G5 1.5 137
2023
Renegade 850 X-RS with SAS e-tec REV-G4 ES/R 137
2022
Renegade 900 Adrenaline ACE REV-G4 1.25 137
2023
Renegade 900 Adrenaline ACE Turbo R REV-G4 1.25 137
2023
Renegade 900 Adrenaline ACE Turbo R REV-G4 ES/R 137
2022
Renegade 900 Adrenaline ACE Turbo REV-G4 1.25 137
2023
Renegade 900 Adrenaline Enduro ACE REV-G5 1.25 137
2024
Renegade 900 Enduro ACE REV-G4 1.25 137
2023
Renegade 900 Enduro ACE Turbo R REV-G4 1.25 137
2023
Renegade 900 Enduro ACE Turbo R REV-G4 ES/R 137
2022
Renegade 900 Enduro ACE Turbo REV-G4 1.25 137
2023
Renegade 900 X ACE Turbo R REV-G4 1.25 137
2023
Renegade 900 X ACE Turbo R REV-G4 1.5 137
2023
Renegade 900 X ACE Turbo R REV-G5 1.25 137
2025
Renegade 900 X ACE Turbo R REV-G5 1.5 137
2025
Renegade 900 X ACE Turbo REV-G5 1.25 137
2025
Renegade 900 X ACE Turbo REV-G5 1.5 137
2025
Renegade 900 X-RS ACE Turbo R REV-G4 1.25 137
2023
Renegade 900 X-RS ACE Turbo R REV-G4 1.5 137
2023
Renegade 900 X-RS ACE Turbo R Smart Shox REV-G4 1.5 137
2023
Renegade 900 X-RS with SAS ACE Turbo REV-G4 ES/R 137
2022
Skandic 600 Tundra LT ACE REV-XU ES/R 154
2013
Skandic 600 WT ACE REV-XU ES/R 154
2020
Skandic 900 SE ACE Turbo REV-G4 20 1.5 154
2024
Skandic 900 SE ACE Turbo REV-G4 20 1.8 154
2024
Skandic 900 SE ACE Turbo REV-G4 24 1.5 154
2024
Summit 500SS Everest Carb REV-XP R 146
2009
Summit 800 50th Anniv. REV-XP R L/C 154
2009
Summit 800 Everest e-tec 146 REV-XP R
2011
Summit 800 Everest e-tec REV-XP R 154
2011
Summit 800 Freeride e-tec REV-XP R 154
2011
Summit 800 Hillclimb Edition REV-XP R 154
2009
Summit 800 R Everest
2008
Summit 800 SP REV-XP R 154
2011
Summit 800 SP T-3 e-tec REV-XM R 154
2016
Summit 800 SP T-3 e-tec REV-XM R 163
2016
Summit 800 SP T-3 e-tec REV-XM R 174
2016
Summit 800 SP e-tec REV-XM R 174
2017
Summit 800 SP e-tec REV-XP R 146
2012
Summit 800 SP e-tec REV-XP R 154
2012
Summit 800 SP e-tec REV-XP R 163
2012
Summit 800 Sport carb REV-XP R 154
2016
Summit 800 X T-3 e-tec REV-XM R 154
2016
Summit 800 X e-tec REV-XM R 174
2017
Summit 800 X-RS Hillclimb Edition REV-XP R 154
2010
Summit 850 Edge e-tec REV-G4 R 2.5 154
2022
Summit 850 Edge e-tec REV-G4 R 3.0 154
2022
Summit 850 Edge e-tec REV-G4 R 3.0 165
2022
Summit 850 Edge e-tec REV-G4 R 3.0 175
2022
Summit 850 Edge e-tec REV-G5 2.5 154
2023
Summit 850 Edge e-tec REV-G5 3.0 154
2023
Summit 850 Edge e-tec REV-G5 3.0 165
2023
Summit 850 Edge e-tec REV-G5 3.0 175
2023
Summit 850 Expert Turbo R e-tec REV-G5 3.0 154
2023
Summit 850 Expert Turbo R e-tec REV-G5 3.0 165
2023
Summit 850 Expert Turbo R e-tec REV-G5 3.0 175
2023
Summit 850 Expert Turbo e-tec REV-G5 2.5 154
2023
Summit 850 Expert e-tec REV-G5 2.5 154
2023
Summit 850 Expert e-tec REV-G5 3.0 154
2023
Summit 850 Expert e-tec REV-G5 3.0 165
2023
Summit 850 High Climb Edition e-tec REV-G5 3,0 154
2024
Summit 850 High Climb Edition e-tec Turbo R REV-G5 2.5 154
2025
Summit 850 SP e-tec REV-G4 R 146
2018
Summit 850 SP e-tec REV-G4 R 154
2017
Summit 850 SP e-tec REV-G4 R 165
2017
Summit 850 SP e-tec REV-G5 2.5 146
2023
Summit 850 SP e-tec REV-G5 2.5 154
2023
Summit 850 SP e-tec REV-G5 2.5 165
2023
Summit 850 SP e-tec REV-G5 3.0 154
2023
Summit 850 SP e-tec REV-G5 3.0 165
2023
Summit 850 X Expert Turbo R e-tec REV-G5 3.0 175
2024
Summit 850 X Expert e-tec REV-G4 R 3.0 175
2021
Summit 850 X Expert e-tec REV-G5 2.5 154
2025
Summit 850 X Expert e-tec REV-G5 2.5 165
2025
Summit 850 X e-tec REV-G4 R 154
2017
Summit 850 X e-tec REV-G4 R 165
2017
Tundra 600 Sport ACE REV-XU ES/R 137
2018
Tundra Xtreme 600HOE XP Euro
2014