RZR PRO XP (2021+) Performance HD Primary and Secondary Bundle

Mother Clutcher complete HD P90XT primary and upgraded secondary clutch combo kit for 2021 and newer RZR PRO XP.  KIT INCLUDES : Upgraded HD P90XT primary clutch, which comes balanced with pre-installed weights and spring so it's ready to bolt up and use! Puller tool for old primary clutch removal Mounting bolt for the new Secondary clutch comes balanced with helix pre-installed, and a stiffer than-stock spring for increased belt grip. Comes ready to install! Shims (the ones included need some or all to be added on top of the secondary clutch for proper belt alignment with the new P90XT primary).   FITMENT: 2021+ RZR PRO XP MODELS (2 AND 4 SEATER) 2025+ RZR PRO-S  MODELS (2 AND 4 SEATER)   If you have a 2016-2020 RZR Turbo of any kind please see our other listings as this secondary fits 2021 and newer models only. Replaces OEM part numbers: bare moveable bottom sheave 1323812, top half ( HD stat asm )1327102 also replaces 1327121 and older 1323810, complete bottom half (moveable sheave+helix, rollers and pins)is 1323829 spec that also updates and replaces older 1323811, helix 1323830 replaces and updates older 1323772, spring 7045664 and it also replaces 7045644   UPGRADED PRIMARY CLUTCH FEATURES: This primary P90XT clutch comes with the same heavy-duty proven design that came stock on the 2016-2020 RZR Turbo. It does away with the failure-prone casting flaws that are known to cause the P90X clutch (that came stock on the Pro XP models) to explode at high RPMs. Another huge improvement with this P90XT-type clutch is its ability to hold more belt grip without slipping at higher RPMs, which keeps the power on the ground. This also greatly prolongs the life of the belt by keeping the friction and temperature down. By keeping the RPMs down, it avoids hitting the rev limiter at full throttle which eliminates the chance of your engine light coming on and forcing it into limp mode. The only downfall to these and all the P90XT clutches is not a performance issue, but a sound issue. They tick at idle and it is very noticeable if you start it up with the plastic cover off. The reason they tick is due to the design, the spider moves freely in the main basket instead of having buttons which causes them to tick at idle. However, the sound fades away once you give it a little throttle. UPGRADED SECONDARY CLUTCH FEATURES: The secondary clutch is made as an OE-style Polaris (aka driven) clutch.  The 2021-2022 OEM bottom half of the secondary clutch had a helix issue which was fixed with a superseded new part number in 2023. This clutch has the updated 2023+ helix. Lastly, we pre-installed a stiffer than stock spring for increased belt grip (more on spring below). STIFFER SECONDARY SPRINGS IMPORTANCE FOR IMPROVED BELT GRIP:  The stock Polaris Pro XP secondary came with a relatively weak spring considering the amount of horsepower they produce which often leads to problems with belt glazing and eventually RPM surging and belt slipping which ruins belts repeatedly and hurts performance.  Our secondary comes with a stiffer spring pre-installed, which provides the much-needed increased belt grip which fights against belt slip both while under a load such as mud or hills and in full-throttle situations. This also helps run larger tires without slipping/smoking your belts. CONDITION: New and ready to install WARRANTY: All clutches are backed by Harvey's ATV Parts 1-year warranty.  SHIPPING: Package will be sent via USPS Priority or UPS Ground and will be shipped with a tracking number added to the checkout details within 1 business day after payment is received.