BOLD MAGENTA part numbers are new for 2025 PARTS-UNLIMITED.COM 2025 | ATV/UTV PISTON & PISTON KITS PISTON & PISTON KITS 1068 PISTON KITS •Forged from aerospace-grade aluminum alloys and heat-treated for strength and durability using Wossner’s state-of-the-art heat treatment process •CNC machined using MAZAK® advanced technology maintaining high precision and accuracy through every machining step •Reduced product distortion and variability • Enhanced piston pin oiling slots, radial boss machining and annular grooves for improved wrist pin lubrication •Piston skirt profile and camming are specifically tailored to each application for reduced friction, smooth operation and reduced noise from rockover •Piston skirts are coated for reduced friction and improved break in performance •Select applications have coating treatments to protect from harsh tuning environments •Piston rings are made from premium alloy steel and feature treatments to improve ring seal and extend wear life • Kits include piston, piston rings, piston pin and retaining clips 4-STROKE KITS •Crown options available for stock and altered compression ratios •Ring land treatments for improved ring seal and oil control, as well as gas porting on featured applications for the strongest compression ring seal FITS MODEL SIZE (MM) PART # REPLACEMENT RING SET CAN-AM Maverick Turbo 1000 17-22 73.94 (Std.) 0910-6646 - HONDA ATC250R 85-86 65.94 (Std.) 0910-55552 - 66.19 (+0.25) 0910-55562 - 66.44 (+0.50) 0910-55572 - 66.69 (+0.75) 0910-55582 - 66.94 (+1.0) 0910-55592 - 67.19 (+1.25) 0910-55602 - 67.44 (+1.5) 0910-55612 - 67.94 (+2.0) 0910-55622 - TRX250R 86 65.94 (Std.) 0910-55552 - 66.19 (+0.25) 0910-55562 - 66.44 (+0.50) 0910-55572 - 66.69 (+0.75) 0910-55582 - 66.94 (+1.0) 0910-55592 - 67.19 (+1.25) 0910-55602 - 67.44 (+1.5) 0910-55612 - 67.94 (+2.0) 0910-55622 - TRX400X/EX 99-14 86.94 (Std.) - 0912-0853 TRX420FE Rancher/FM Rancher ES/ 86.45 (Std.) 0910-6113 - TE Rancher ES/TM Rancher ES 07-24 86.95 (+0.50) 0910-6114 - TRX420FA Rancher 09-24 86.45 (Std.) 0910-6113 - 86.95 (+0.50) 0910-6114 - TRX420FP Rancher AT 09-21 86.45 (Std.) 0910-6113 - 86.95 (+0.50) 0910-6114 - Talon 1000R 19-22 91.95 (Std.) 0910-6649 - KAWASAKI KFX400 03-06 95.44 (+5.50) - 0912-0685 FITS MODEL SIZE (MM) PART # REPLACEMENT RING SET POLARIS Scrambler/Trail Boss/ 71.93 (Std.) 0910-55142 - Trail Blazer 250 85-05 72.43 (+0.50) 0910-55102 - 72.93 (+1.0) 0910-55112 - 73.43 (+1.5) 0910-55122 - 73.93 (+2.0) 0910-55132 - ATV 300 94-00 74.43 (Std.) 0910-55152 - 74.93 (+0.50) 0910-55162 - 75.43 (+1.0) 0910-55172 - 76.43 (+2.0) 0910-55192 - ATV 400 95-03 82.93 (Std.) 0910-55242 - 83.43 (+0.50) 0910-55202 - 83.93 (+1.0) 0910-55212 - 84.43 (+1.5) 0910-55222 - 84.93 (+2.0) 0910-55232 - ATP 500 05 92.45 (+0.50) 0910-6110 - 92.95 (+1.0) - 0912-0856 Magnum 500 03 92.45 (+0.50) 0910-6110 - 92.95 (+1.0) - 0912-0856 Outlaw 500 06-07 99.14 (Std.) 0910-61203 - Predator 500 03-07 99.14 (Std.) 0910-61203 - Ranger 500 04-13 92.45 (+0.50) 0910-6110 - 92.95 (+1.0) - 0912-0856 Scrambler 500 96-12 92.45 (+0.50) 0910-6110 - 92.95 (+1.0) - 0912-0856 Sportsman 500 96-14 92.45 (+0.50) 0910-6110 - 92.95 (+1.0) - 0912-0856 Xplorer 500 97 92.45 (+0.50) 0910-6110 - 92.95 (+1.0) - 0912-0856 Ace 570 15-19 99.42 (+.50) 0910-6111 - 103.92 (+5.0) - 0912-0849 2-STROKE KITS •Offered in standard graded sizes as well as oversized for select applications • Optimized machining for lightness, as well as maintaining strength in key areas such as crown and skirt wall cross sections •External machining optimized to prevent port venting for extreme applications with race porting 2 Dual ring. 3 Pro series.
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