BOLD MAGENTA part numbers are new for 2026 ENGINE PARTS-UNLIMITED.COM SNOW | 2026 ENGINE 547 FITS MODEL PART # POLARIS 800 CFI/HO 08-09 0910-5723 FITS MODEL PART # POLARIS (CONT) 800 CFI/HO 10-12 0910-5722 FITS MODEL PART # POLARIS (CONT) 800 CFI/HO 13-20 0910-5303 DURABILITY PISTON KITS •Custom-designed taller pistons have less piston slap •Rings have been spaced apart for better cooling • Pistons have 0.020” wrist pin offset to take load off the intake side •Forged pistons are more durable and collapse less than factory pistons •Friction-resistant coated pistons •Lubrication holes in the skirt of the piston designed to lengthen piston skirt life FITS MODEL PART # POLARIS F/M/X-Fire 600/700 0926-3040 FITS MODEL PART # POLARIS (CONT) F/M/X-Fire 1000 0926-3041 EXHAUST VALVE SPACERS •Add a lot of mid-range power at an extremely low price •Machined out of aluminum •Come with an install instruction sheet •Sold in pairs 0926-3041 0910-5303 FITS MODEL DESCRIPTION HP INCREASE PART # ARCTIC CAT F/M/X-Fire 800 10-17 Low altitude (0’ to 6,000’) 5-6 mid range hp and 4-5 peak hp 0930-0164 POLARIS 800 CFI HO AXYS Rush/Switchback/RMK 15-17 High altitude (6,000’ to 12,000’) w/ single outlet thermostat housing 8-9 mid range hp and 7-8 peak hp 0930-0172 800 CFI HO AXYS Rush/Switchback/RMK 18-20 Low altitude (0’ to 6,000’) 4-5 mid range hp and peak hp 0930-0171 850 AXYS 19-24 (all) Low altitude (0’ to 6,000’) 4-5 mid range hp and peak hp 0930-0211 Matryx 9R 23-24 Low altitude (0’ to 6,000’) 8-9 mid range hp 0930-0245 High altitude (6,000’ to 12,000’) w/ single outlet thermostat housing 8-9 mid range hp 0930-0244 BILLET HEAD KITS •Increase cooling capacity for lower running temps which helps maintain peak power •High altitude for 6,000 to 12,000 feet or low altitude for 0 to 6,000 feet available 0930-0172 0930-0164 FITS MODEL PART # 800R (0 to 6,000’) 08-16 0930-0052 BILLET HEAD FOR SKI-DOO •A 4 to 5 hp increase on all heads •Billet heads provide three times the cooling over stock •Receive increased fuel and mph efficiency from the newly improved combustion chamber •Feature a black anodized finish for corrosion resistance and require no jetting changes •All inserts and O-rings are included •Gains 6 to 7 hp and even more for motors down on compression •A must-have for motors with over 1,500 miles on stock pistons •Smoother running motor •No EFI controller required • Includes pistons, rings, circlips, wristpins, cylinder bolts, cylinder spacer, longer alignment pins and two base gaskets
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