Polaris ACE Heavy-Duty CVT Drive Belt

Match the original belt number first

Choose the OEM number and belt style separately. The Racing Series selection for OEM3211172 is distinct from the regular Worlds Best Belt. The manufacturer lists this OEM number for ACE 900 from 2016 through 2019, ACE 570 for model year 2017 and EBS-equipped ACE 570 from 2015 through 2016. The non-EBS 2015-2016 machines use a different OEM group in the chart below.

One selected belt is supplied. The photo illustrates the belt range, not a multi-belt package or proof of exact dimensions. Follow the break-in instructions for the chosen style and check clutch condition before installation. For existing Mud Monster choices, the manufacturer warns of rapid heat buildup above 35 MPH.

Manufacturer-listed compatibility

OEM Part #: 3211172/ 3211149

Polaris ACE 900 : 2016-2019

OEM Part #: 3211143/ 3211206/ 3211169

Polaris ACE 570 : 2018-2019

Polaris ACE 570 (Non-EBS) : 2015-2016

OEM Part #: 3211172/ 3211149/ 3211148

Polaris ACE 570 : 2017

Polaris ACE 570 (EBS) : 2015-2016

OEM Part #: 3050270

Polaris ACE 150 : 2017-2021