BOLD MAGENTA part numbers are new for 2027 ENGINE PARTS-UNLIMITED.COM SNOW | 2027 ENGINE 491 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 PART # REPL. CIRCLIPS PART # TOP END BEARING PART # POLARIS (POLARIS ENGINE) (CONT) 800 CFI 11-12, Indy 800 RMK 11-12, 800 Rush 11-12, 800 Switchback 11-12 2 85 x 70 794 STD - 0910-4045 3347KD - - - Electra Coated.ArmorGlide skirt coated. Pro-Lite. - 800 CFI/Rush/Switchback 13-17, Indy 800 14-15 2 85 794 STD 0903-1252 0910-4045 3347KD - - - Electra Coated.ArmorGlide skirt coated. x Pro-Lite. 70 Liberty motor: Indy 800 Classic 04, 800 Edge Touring 04-05, 800 LE/S now Check Special 01, 800 Pro X 03-04, 800 RMK 02-05, 800 SKS 03, 800 Switchback 04-05, 800 XC SP 01-05 2 85 x 70 794 STD SK1315 2428M08500 3347KD - - - Electra Coated. Nikasil bore, Pro-Lite. Turbo IQ 06-14/Turbo IQ LXT 12-14, Dragon IQ Cruiser/ IQ FS/FST/IQ Switchback/IQ Touring 06-14 2 85 x 70 749 STD - 0910-4053 - - - - 8.5:1 Compression ratio. ArmorGlide skirt coated. SKI-DOO (ROTAX ENGINE) 253 Engine type: Cheyenne 89-91, Citation 3500 80-84/ LS/LSE 85-91, Escapade 87-89, Skandic 277 83, Tundra 85-88/LT 86-92/3500 79-84,Voyager 89 1 72 x 61 248 STD - - - S-513 CW18 B1003 Fan cooled. 1.50 - 2373M07350 - - Cast iron bore. Pro-Lite, includes wrist pin. 377 Engine type: Citation 4500 79-83, Formula DLX 380 99-01/S 96, 99-00/S Electric 98, GSX 380 (fan) 05-06, GTX 380 (fan) 06, Grand Touring 380F 01-04, Legend 380 (fan) 03-04, MXZ 380 01-06, Nordic 377 81-84, Safari 377 84-94, Skandic 377 83/380 98-00, Touring E 96-00/LT 97, 2 62 x 61 368 STD 0.25 0.50 - - 0910-3982 2308M06250 2441CD - 2461CD - - - - CW18 B1003 Fan cooled. - Cast iron bore. - 440 Engine type: Blizzard 9500 79-82 2 67.5 436 0.50 - 2374M06800 S-513 CW18 B1003 Liquid cooled. x Cast iron bore. 61 453 Engine type: MXZ 440 99-06/Racing LC 04-07 2 65 437 STD 0903-0085 - - - CW18 - Liquid cooled. x Nikasil bore, Pro-Lite. 65.8 454 Engine type: MXZ 440 Cross Country 95-98 2 67.5 437 STD SK1205 - - S-477 CW18 - Liquid cooled. x Cast iron bore. Pro-Lite, includes wrist pin. 61 NOTE: Kit does not include top-end gasket kit. 467 Engine type: Formula GLX 90/MX 85-95/MXZ 93-94/ SS 85/XT 94, SS25SP 84 2 69.5 x 61 466 0.25 - - 2746CD - - - Cast iron bore. 469 0.50 - - 2756CD - - - 475 1.00 - - 2776CD - - - 493 Engine type: Formula DLX 500 01, Grand Touring 500 01-03, Legend 500 02-03, MXZ 500 00-03/Trail 01 2 69.5 x 65.8 506 0.50 - 0910-4025 - - CW18 - Liquid cooled, cylinder reed motor. 514 1.00 - - 2776CS - - - Cast iron bore. Pro-Lite, includes wrist pin. 494 Engine type: Formula DLX 500 LC 98-00, Formula 500 LC 00, Formula Z 500 99, Grand Touring 500 98-99, MXZ 500 98-99/Trail 01, Skandic 500 WT LC 98-99, Summit 500 97-00,Touring 500 LC 00 2 69.5 x 65.8 499 506 512 STD 0.50 1.00 - - - 2381M06950 2381M07000 - - 2756CD 2776CD - - - CW18 - - - - - Cast iron bore. Pro-Lite, includes wrist pin. NOTE: Fits rotary valve motors only. 503 Engine type: Alpine 500 83-90/94, Blizzard 5500 7981/MX 82-84, Cheyenne 89-91, Escapade 87-89, Everest 500/E 80-83, Formula Deluxe 500F 99-01, Formula SL 96-99, Grand Touring Cargo F 01, Grand Touring F 01-02, MXZ 500 (fan) 01-02, Safari 503 93-94/LC 86-94, Skandic 500 87-94, 96-02/Sport 03, Skandic 550 SWT/WT 96-03, Summit 500 (fan) 01-02,Touring 500 (fan) 01,Touring SLE 95-99,Voyager 89 2 72 x 61 497 511 STD 1.50 - - - 2373M07350 - - S-513 - CW18 - B1003 - Cast iron bore. Pro-Lite, includes wrist pin. 536/537 Engine type: Formula Plus 521 86-91 2 72 521 STD - - - S-513 CW18 B1003 Liquid cooled. x 543 1.50 - 2373M07350 - - - - Cast iron bore. Pro-Lite, includes wrist pin. 64 550F Engine type 03-19: Expedition Sport 05-19, Freestyle Backcountry/Park 07-08/Session 07, Grand Touring 03/10-15, GSX/GTX (fan) 05-08, Legend 03-04, MXZ (fan) 03-08, MXZ 550 X 07-08, Skandic SUV/SWT/WT 04-19, Skandic Tundra LT 08, Summit (fan) 03-08, Tundra 09-19 2 76 x 61 561 0.50 - 0910-4033 - - CW20 - Fan cooled.
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