BOLD MAGENTA part numbers are new for 2026 ENGINE PARTS-UNLIMITED.COM SNOW | 2026 ENGINE 537 HIGH-PERFORMANCE SNOWMOBILE PISTONS continued on next page. HIGH-PERFORMANCE SNOWMOBILE PISTONS (CONT) FITS MODEL NO. OF CYL. BORE X STROKE (MM) DISPL. (CC) SIZE (MM) PISTON/ GASKET KIT PART # PISTON PART # REPL. RING SET PART # REPL. WRIST PIN REPL. CIRCLIPS TOP END BEARING SKI-DOO (ROTAX ENGINE) (CONT) 800R P-TEK Engine Type; dual-ring pistons 2 82 800 STD 0903-1253 0910-4047 - - - - GSX Limited 08, MXZ Adrenaline/Adrenaline XP 08, x MXZ Adrenalin P-TEK 09, MXZ P-TEK 09-11, 75.7 MXZ Renegade/Renegade X 08, MXZ Renegade 800R P-TEK 09, MXZ Renegade X 800R P-TEK 09-11, MXZ X 800R 08-11, Summit 50th Anniversary 09-10, Summit 50th/Summit Everest 08, Summit Everest P-TEK 09-10, Summit Hillclimb 08, Summit Hillclimb Edition 09-10, Summit X 800R P-TEK 09-11, Summit X 800R 08 Liquid-cooled. Electra Coated; ArmorGlide® skirt coated. 800R E-TEC Engine Type 12-18; single ring pistons 2 82 800 STD - 0910-4035 - - - - Freeride 12-18, GSX 12-18 MXZ TNT 12-14, MXZ 12-18, x Renegade 12-18, Summit 12-18, Expedition 16-18 75.7 Liquid-cooled. Electra Coated; ArmorGlide® skirt coated. 800R E-TEC Engine Type 12-18; dual-ring pistons 2 82 800 STD - 0910-4047 - - - - Freeride 12-18, GSX 12-18 MXZ TNT 12-14, MXZ 12-18, x Renegade 12-18, Summit 12-18, Expedition 16-18 75.7 Liquid-cooled. Electra Coated; ArmorGlide® skirt coated. - 850 E-TEC 17-19 2 82 849 STD - 0910-5053 - - CW20 - MXZ 850 17-19, Renegade 85 17-19, x Backcountry 850 19, Freeride 850 18-19 80.4 Summit 850 17-19 Liquid-cooled. Electra Coated; ArmorGlide® skirt coated. 1000 Engine Type 2 88 997 STD 0903-0612 - - - - - MXZ Renegade 1000 07, Mach Z Adrenaline 05-08, x Mach Z LT 1000 08, Mach Z X 07-08, 82 Summit 1000 Highmark 05-08 YAMAHA Exciter 440 75-81 2 68 433 STD - 2284M06800 - - CW18 B1003 Cast iron bore. x 1.00 - 2284M06900 - 59.6 SS440 80-85 2 66 437 STD SK1127 - 2598CD S-477 CW18 B1003 Cast iron bore. Includes wrist pin. x 0.25 - - 2608CD 64 0.50 - - 2618CD 1.00 - - 2638CD 1.50 - - 2658CD SRX440 78-80, SSR440 78-80 2 68.5 439 STD - 2282M06850 2697CSM S-423 CW20 - Liquid cooled. Chrome bore. Sleeving or replating required. x NOTE: Will not fit 81 model. 59.6 XL-V 91-93, Phazer 84-98,Venture 480 91-98, 2 72 485 STD SK1035 2310M07200 2835CD S-257 CW18 B1003 Mountain Lite 97-99 x 491 0.50 SK1036 2310M07250 2854CD Fan cooled. 59.6 499 1.00 - 2310M07300 2874CD Cast iron bore. Pro-Lite, includes wrist pin. 508 1.50 - 2310M07350 2894CD Phazer 99-01,Venture XL Touring 99-00. 2 72 485 STD - 2310M07200 2835CD S-257 CW18 B1003 Pro-Lite, includes wrist pin. x 491 0.50 - 2310M07250 2854CD Fan cooled. Cast iron bore. 59.6 499 1.00 - 2310M07300 2874CD 508 1.50 - 2310M07350 2894CD Vmax 500 94-01,Venture 500 99-01, 2 68 493 STD SK1163 2356M06800 2677CD S-423 CW20 B1031 SX 500 R 00-01. x Nikasil bore. Pro-Lite, includes wrist pin. 68 XL-V 86-90, SRV540 80-91,VK540 88-05 2 73 535 STD - - 2874CD S-512X CW20 B1023 Cast iron bore. Pro-Lite, includes wrist pin. x 543 0.50 SK1045 2305M07350 2894CD 64 551 1.00 - 2305M07400 - Exciter Deluxe 89-90, Exciter EX570 LC 87-90, 2 73 569 STD SK1094 - 2874CD S-423 CW20 B1023 Exciter II 91-93 x 577 0.50 - - 2894CD Cast iron or Nikasil bore. 68 Pro-Lite, includes wrist pin. Sleeving or replating required for oversizes. Vmax 600 94-99,Venture 600 98, 2 74.8 598 STD SK1257 2388M07480 - S-423 CW20 B1023 Mountain Max 600 98-99 x - - Nikasil bore. Pro-Lite, includes wrist pin. 68 Liquid cooled. Sleeving or replating required for oversizes.
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