BOLD MAGENTA part numbers are new for 2024 PARTS-UNLIMITED.COM 2024 | ATV/UTV PISTON & PISTON KITS 1040 FITS MODEL CC SIZE BORE SIZE (MM) KIT TYPE PART # REPLACEMENT RING PART # KAWASAKI KFX400 03-06 (high compression) 435 94 A - 0912-0103 (100mm big bore, 12.7:1 compression) 490 100 A - 0912-0101 POLARIS 250 Trail Boss/Scrambler/Trailblazer (all) 250 72 A - 0912-0022 SUZUKI LT-Z400 00-12 (high compression) 435 94 A - 0912-0103 YAMAHA YFZ350 Banshee 87-06 (all) (68mm big bore) 392 68 A 0910-13321 - 392 68 B 0910-13331 - 1 Cast piston. PRICE LIST PART # SUG. RETAIL 0910-1332 $134.95 0910-1333 134.95 PART # SUG. RETAIL 0912-0022 $33.95 0912-0101 41.95 PART # SUG. RETAIL 0912-0103 $41.95 0912-0158 41.95 FORGED PISTON KITS •Two-stroke pistons are made from 4032 silicium •Four-stroke pistons are made from 2618 silicium – the same material used to produce Formula 1 pistons •Both include 3% copper in materials for better heat resistance •All pistons are forged using a precision heat-treatment process that allows for production tolerances of just .005mm •Most piston kits are available in A or B sizing •Kits include antiwear coated piston, rings, pin and circlips FITS MODEL OEM# DESCRIPTION PART # SUG. RETAIL YAMAHA YFZ350 Banshee 87-06 2GU-11631-00-94 Std. 0910-2729 $96.69 .5mm over 0910-2730 96.69 1mm over 0910-2731 96.69 CAST SERIES PISTONS •Lightweight design incorporates shorter piston skirts with a PTFE coating at critical wear points for quicker revs and less heat •Improved intake skirt with larger inlet ports for increased acceleration and overall performance •Sold each 0910-2729 0910-1332
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