BOLD MAGENTA part numbers are new for 2027 ENGINE PARTS-UNLIMITED.COM SNOW | 2027 ENGINE 497 PISTON KITS continued on next page. 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 •Kits are standard except where noted 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 2-STROKE KITS •Offered in standard graded sizes as well as oversizes 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 1 Premium Plus series. FITS MODEL BORE SIZE (MM) PISTON SIZE (MM) OVERSIZE (MM) COMPRESSION HEIGHT (MM) STROKE (MM) PART # REPLACEMENT RING SET ARCTIC CAT 440 Bear Cat 93-98, 440 Bear Cat I/II 99-00, El Tigre 4000 76, Jag 4000 81-85, 440 Jag/Jag Deluxe/Super Jag 87-99, Jag AFS 89-93, 440 Panther 80-84/89-01, Trail Cat 4000 80-81, 440 Z 95-98 65 64.89 STD 32.2 65 - 0912-0723 600 Sno Pro 09-16, ZR 6000 R SX 15-16, ZR 6000 Sno Pro 14-16 73.8 73.68 STD 38 70 0910-6293 - 600 EXT Triple 96-97, EXT Triple Touring 97-98, Powder Extreme 98, 600 Triple Touring 99-00, 600 ZRT 96-00 66.5 66.37 STD 28.5 57 0910-6287 0912-0729 67 66.87 0.5 - - - 0912-0729 67.5 67.37 1 - - - 0912-0730 800 Mountain Cat EFI 01-04, 800 Mountain Cat LE 01, 800 Pantera EFI 02-04, 800 Pantera EFI ESR 02-03, 800 ZL 01, 800 ZL EFI ESR/EFI SS 02-03, 800 ZR 01, 800 ZR EFI Sno Pro 03 81 80.86 STD 33.1 76 0910-6296 - 86 85.86 5 - - - 0912-0880 800 Pantera 98-99, 800 ZRT 95-01 72 71.86 STD 32 65 - 0912-0881 CF8 10-11, F8 10-13, 800 M8000 10-17, 800 XF8000 12-16, 800 ZR 8000 14-17 85 84.87 STD 38 70 0910-66661 0912-0882 85 84.87 STD 38 70 - 0912-0882 CF8/Sno Pro/Sno Pro LE 09, CFR8/LE 09, 800 Crossfire EFI/Sno Pro EFI 07-08, F8 EFI/EFI LXR/Sno Pro EFI 07-09, M8/Sno Pro/Sno Pro LE 09, M8 EFI 07-08 85 84.87 STD 38 70 - 0912-0882 800 C-TEC 18-19, M 8000 Mountain Cat/Sno Pro 18-19, XF 8000 Cross Country/High Country 18-19, ZR 8000 Sno Pro 18-19 85 84.86 STD 38 70 - 0912-0882 800 C-TEC 20-24, M 8000 Hardcore/Hardcore Alpha One 20-24, M 8000 Mountain Cat Alpha One 20-24, Riot/Riot X 8000 ES 20-23, ZR 8000/Sno Pro 20-21 85 84.86 STD 38 70 - 0912-0882 900 King Cat 04-05, 900 King Cat EFI 05-06, 900 Mountain Cat 03-04, 900 Mountain Cat EFI 04-06, 900 ZR 03-05, 900 ZR EFI/EFI Sno Pro 04-06, 900 ZR Sno Pro 03-05 85 84.86 STD 38 70 - 0912-0882 Pantera 1000 00-01,Thunder Cat 98-01,Thunder Cat MC 98-00,Thunder Cat THC 00 81 80.86 STD 32.2 64.6 0910-6303 85 84.86 4 - - - 0912-0882 LYNX 453 engine type 98-06, Racing 400 98-04, Rave 440 05-06 65 64.87 STD 32.4 65.8 - 0912-0723 593 H.O. engine type 03-12, 600 Adventure 06-08, 600 Commander E-TEC 12-13, 600 Enduro H.O. SDI 03-05, 600 Grand Touring SDI 09-10, 600 Ranger E-TEC 09-11, 600 Rave 06-08, 600 Rave E-TEC 09-12, 600 Rave RE 07-08, 600 SC SDI 09-10, 600 SP 03-05, 600 Sport Touring 03-05, 600 XTrim 06-08, 600 XTrim Commander 09-11, 600 XTrim E-TEC 12-13, 600 Yeti SDI 06-08 72 71.86 STD 33 73 - 0912-0881 0910-6293
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