BOLD MAGENTA part numbers are new for 2026 PARTS-UNLIMITED.COM 2026 | SNOW ENGINE ENGINE 542 PISTON KITS (CONT) FITS MODEL BORE SIZE (MM) PISTON SIZE (MM) OVERSIZE (MM) COMPRESSION HEIGHT MM) STROKE (MM) PART # REPLACEMENT RING SET LYNX (CONT) 800R engine type 13-14, 800R BoonDocker/Rave E-TEC 13-14, 800 Rave GLS E-TEC 13, 800 Xtrim Commander/ER E-TEC 13 82 81.86 STD 38 75.7 0910-6346 - 82 81.86 STD 38 75.7 0910-66751 - 82.5 82.36 0.5 - - 0910-6347 - 85 84.86 3 - - - 0912-0882 POLARIS 488 Fuji engine type 86-06, Classic 500 89-06, Classic Touring 500 98-03, Indy 500 EFI 89-06, Indy RMK 96-99, Indy SKS 91-97, Indy Supertrak 91-94, Indy 500 Trail/Trail Deluxe/Trail Touring/Super Sport 86-89 72.5 72.38 0.5 - - 0910-6307 0912-0736 500 Fuji engine type 99-07, Classic 500 02-03, Indy 500 RMK 00-02, Indy 500 XC 99-02, XC SP 500 02-03 70.5 70.37 STD 32.4 60 0910-6308 - T600 Liberty engine type 98-01, Indy 600 Classic 01, Indy 600 XC 98-99, Indy 600 XC Deluxe 00, Indy 600 XC SP 99, RMK 600 98-01 74.5 74.36 STD 34.2 68 0910-6312 - 600 Liberty engine type (carb) 01-13, Classic Touring/Edge Touring 600 02-06, Fusion H.O. IQ/IQ Dragon/IQ Shift/IQ Touring 07-09, Indy 600 Classic 01-02/04-06, Indy 600 Touring 00, Indy 600 XC SP (VES) 00-05, 600 RMK/Pro-X 02-08, RR 600 08-09, Switchback 600 04-13 77.25 77.13 STD 33.4 64 0910-6313 0912-0893 600 IQ engine type 08-20, IQ 600 Racer 08-20 73.8 73.68 STD 29 70 0910-6314 - 73.8 73.68 STD 29 70 0910-66681 - 600 Liberty engine type (CFI) 06-16, IQ 600 H.O. 07-16, LX H.O. 07, LX IQ H.O. 07-16, HO Switchback 600 07-18,Touring H.O. 600 08-16, IQ Dragon 600 06-10, IQ Shift/Touring 600 08-16 77.25 77.11 STD 33.2 64 0910-6315 0912-0893 77.25 77.11 STD 33.2 64 0910-66671 0912-0893 650 Patriot engine type 21-23,Indy Adventure/Adventure X2 650 22-23, Indy SP/VR1/XC/XCR 650 21-23, RMK KHAOS 650 Slash 22-23, RMK Pro 650 22-23, SKS 650 22-23, Switchback Assault/XC 650 21-23 74.8 74.71 STD 39 74 0910-66691 - 800 Fuji engine type 99-03, XCR 800 99-03, XPS series 800 99-03 72 71.87 STD 35 65 0910-6320 0912-0881 800 Liberty engine type 01-05, Classic 800 04, Edge Touring 800 04-05, Indy 800 LE/Snow Check Special 01, Indy 800 XC SP 01-05, Prox 800 03-04 85 84.88 STD 33.5 70 0910-6321 0912-0882 86 85.88 STD - - - 0912-0880 800 CFI engine type 08-23, Dragon 800 RMK 08-13, ES 800 11-14, IQ 800 08-10, RMK 800 08-19, Rush 800 11-20,Titan 800 18-23 85 84.86 STD 31.3 70 0910-6323 0912-0882 85 84.86 STD 31.3 70 0910-66701 0912-0882 86 85.86 STD - - - 0912-0880 850 Axys engine type 19-24,Axys 850 Pro-RMK/S KS 19-24, Indy 850 Adventure/XC 20-24, Indy 850 SC 19-24, RMK KHAOS 850 20-24, Rush 850 Pro-S 19-24, Switchback SC 850 19-24 85 84.85 STD 39.3 74 0910-6324 0912-0882 85 84.85 STD 39.3 74 0910-66711 0912-0882 SKI DOO 453 engine type 99-07, MXZ 440 99-07, MXZ-X 440 02-03, MXZ-X Racing 440 04-07 65 64.87 STD 32.4 65.8 - 0912-0723 593 engine type 99-15, Formula Deluxe 600 Grand Touring GS/GSE/SE/Z 99-02, Grand Touring Sport 10-15, GSX/GTX 500 SS Sport 05-10, IC 600 WT LC 01-04, Legend Sport RER 600 03, MXZ Adrenaline/TNT/Trail 500 SS 04-09, MXZ Adrenaline/Sport/Trail 600 99-04, MXZ-X 600 99-04, SK 600/SUV 01-04, Summit/Sport 600 99-02, Summit Everess SS/Renegade Sport/Sport 600 09-19 76 75.87 STD 30.2 65.8 0910-6333 - 593 H.O. engine type 03-10, Expedition 600 TUV 05-10, Grand Touring 600 03-09, GSX 600 03-09, GTX LTD 600 03-09, IC 600 SUV 08, Legend GR/SE/S port/ Touring Sport SDI/SE 600 04, MXZ Adrenaline/Blizzard/Renegade/X 03-09, MXZ Rev Sport/Rev-X 600 03, MXZ Trail/X600 600 04-06, SK 600 SUV 08, Summit 600 Adrenaline/Adrenaline 144 03-08, Summit Everest 600 H.O. E-TEC 09 72 71.86 STD 33 73 0910-6336 0912-0881 593 H.O. engine type 03-20, Expedition TUV 600 05-10, Grand Touring/G SX/GTX LTD/LTD/SE/ Sport SDI 03-09, Legend GR/SE/Sport SDI/Touring Sport 600 04, MXZ Adrenaline/B lizzard/ Renegade/X 600 03-09, MXZ Rev Sport/Rev-X 03, MXZ Trail/X 600 04-06, SK/SK IC 600 SUV 08, Summit 600 Adrenaline/Adrenaline 144 03-08, Summit Everest 600 H.O. E-TEC 09 72 71.86 STD 33 73 0910-66721 0912-0881 600 H.O. E-TEC engine type 08-19, Expedition 600 12-19, GSX 600 LE/SE H.O.E. XP 09-16, GTX 600 LE H.O. E-TEC 09, Grand Touring 600 LE H.O.E. 10-17, IC 600 12-19, MXZ 600 H.O.E. 08-18, MXZ TNT/XRS 600 H.O.E. 10-17, Renegade 600 H.O.E. 10-17, SE 600 H.O.E. XP 09-16, SK 700 23-29, Summit 600 H.O.E. 12-18, Summit X 600 H.O. E-TEC 09,Tundra Extreme 600 H.O.E. 12-19 72 71.86 STD 32.9 73 0910-6335 0912-0881 MZX E-TEC engine type 18-21, Backcountry 600/600R EFI/E-TEC 19-21, Expedition LE/SE/ Sport 600 20-21, IC 600 Sport EFI/WT EFI 21, MXZ EFI/MXZ E-TEC/MXZ-R/MXZ-RS 600 18-21, Renegade 600/600R EFI/E-TEC 19-21, SK 600 21,Tundra EFI/LT 600 21 72.3 72.17 STD 33 73 0910-6673 - 670 engine type 93-99, Formula Deluxe 670 99, Formula Mach I 670 93-95, Formula SS 670 94-95, Formula Z 670 98-99, Grand Touring SE 670 94-95, Mach I 670 96, MXZ 670 97-98, Summit 670 95-97 78 77.88 STD 32.9 70 0910-6338 - 800R P-TEK engine type 07-11, MXZ 800R 08-11, MXZ Adrenaline 800R 08-10, MXZ Adrenaline/Backcountry/Renegade 800R 08-11, Summit Everest/ Hillclimb/Sport/X 800R 08-11 82 81.86 STD 38.1 75.7 0910-6674 - 82 81.86 STD 38.1 75.7 0910-66751 - 800R E-TEC engine type 12-19, Expedition/Extreme 800R 16-19, Freeride 800R 137/146/154 12-17, MXZ 800R 12-19, Renegade Adrenaline/Backcountry/X 800R 12-18, Summit SP/X 800R 12-17 82 81.86 STD 38 75.7 0910-6346 - 82.5 82.36 0.5 - - 0910-6347 - 85 84.86 3 - - - 0912-0882 809 engine type 97-03, Grand Touring SE 809 99-01, Mach Z LT 809 97-98, Mach Z Sport 809 02, Mach Z Tech Plus 809 01-03, Mach Z Triple 809 99-01 70.5 70.37 STD 32 68 0910-66761 - 850 E-TEC engine type 17-21, Backcountry 850 19-21, Freeride 850 18-21, MXZ 850 E-TEC 17-21, Summit/Expert/Turbo/X 850 17-21 82 81.86 STD 38 80.4 0910-6348 - 82 81.84 STD 38 80.4 0910-63691 - 82 81.84 STD 38 80.4 0910-66771, 2 - YAMAHA Mountain Lite 480 97-99, Phazer 480 84-01,Venture 480 91-98, Venture XL Touring 480 99-00, XL-V 91-93 72 71.88 STD - 59.6 0910-6351 0912-0881 SX-R 500 00-01,Venture 500 99-01,Vmax 500 94-01 68 67.9 STD 36 68 0910-6353 0912-0731 Phazer FX 500 07, Phazer GT 500 07-13, Phazer MTX/RTX 500 07-17, Phazer XTX 500 14-18,Venture Lite/MP 500 07-18 77 76.95 STD 22.8 53.6 0910-6354 - Mountain Max 600 98-99,Vmax 600 94-99 75.3 75.18 0.5 - - - 0912-0909 1 Premium Plus series. 2 Heavy duty.
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