BOLD MAGENTA part numbers are new for 2026 ENGINE PARTS-UNLIMITED.COM SNOW | 2026 ENGINE 541 PISTON KITS continued on next page. 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 El Tigre 5000 87-88, El Tigre 6000 L/C 78-79, 440 Pantera 85-90, 440 Z L/C 76-80 68 67.89 STD 28.3 60 - 0912-0731 500 El Tigre 6000 L/C 80-81/84-85 70 69.89 STD 32.3 65 0910-6283 - 600 H.O. E-TEC engine type 08, 600 Rave RS 08 72 71.86 STD 32.9 73 0910-6335 600 Mountain Cat EFI/EFI LE/VEV 01-04, 600 Pantera EFI 04-05, 600 Pantera EFI ESR 02-03, 600 Power Special EFI LE/LE/2K 00, 600 Powder Special EFI 00, 600 ZL EFI/EFI SS 00-03, 600 ZR EFI/EFI CC/LE/Reverse/VEV/2K 00-02 78 77.88 STD 30.2 62.7 0910-6291 - 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 700 Mountain Cat 91-93, 700 Mountain Cat EFI 91-96, 700 Powder Special 99-00, 700 Wild Cat 91-96, 700 ZL 00, 700 ZR 99-00/94-96 81 80.86 STD 34 68 0910-6295 - 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 0910-6299 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 0910-6300 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 Thunder Cat 900 93-97 76.5 76.37 STD 32.4 65 0910-6302 - 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 M 9000 King Cat 17-19, XF 9000 Cross Country/Crosstrek/H igh Country 17-19, ZR 900 Thunder Cat 17-22 80 79.93 STD 27.5 66.2 - 0912-0851 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 engine type 00-07, 600 Adventure 06, 600 Enduro RER 02,600 Enduro SP 00-02, 600 Grand Touring 01-02, 600 Ranger 04-06, 600 Ranger LCE 03, 600 Rave 06, 600 ST 07-07, 600 Super Touring/5900 ST 01-03 76 75.87 STD 30.2 65.8 0910-6333 - 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 0910-6336 0912-0881 670 engine type 94-00, 670 Grand Touring 97, 700 Grand Touring 00, 670 Grand Touring Royal 98-99, 670 Rave 94-97, 670 Rave Big Pipe 98-99, 670 Rave Special 00 78 77.88 STD 32.9 70 0910-6338 - 800R engine type 08-13, 800R Boondocker 11, 800R Boondocker E-TEC 12-13, 800R Rave 08-11, 800R Rave E-TEC 12-13, 800R Xtrim 08-10, GLS 3300 13 82 81.86 STD 38.1 75.7 0910-6674 - 85 84.86 3 - - - 0912-0882 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 0910-6283
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