BOLD MAGENTA part numbers are new for 2024 PARTS-UNLIMITED.COM 2024 | ATV/UTV PISTON & PISTON KITS WRIST PINS • Wiseco wrist pins are strong, lightweight and can be used with OEM pistons too •Wiseco 2-stroke pistons include a wrist pin unless indicated •See price list on page 1030 CIRCLIPS • Two high-strength, easy-to-install circlips furnished with every piston •Order additional inventory from the chart below •See price list on page 1030 TOP END BEARINGS •High-quality bearings are manufactured to the highest standards; case-hardened for maximum life and smooth operation at high engine speeds •See price list on page 1030 REPLACEMENT RING SETS •Each ring set is for one piston •See Wiseco ring buyer’s guide for details •See price list on page 1030 NOTE: Wiseco rings fit only Wiseco pistons. HIGH-PERFORMANCE PISTONS •Forged from high-silicon aluminum alloy for maximum strength and dependability •Wiseco offers a complete range of popular piston models and years for both trail and racing applications WISECO FEATURES PRO-LITE PISTONS • Durability, longevity and increased horsepower •Innovative forging design and piston skirt provide maximum horsepower and torque PK PISTON AND GASKET KITS •Contain all the necessary components for overboring or rebuilding your top end • Feature forged pistons, rings, wrist pins, circlips and top-end gasket set •Cylinder sleeves must be purchased separately •See price list on page 1030 4-STROKE RACER’S CHOICE PISTONS •Now you can own the same race parts as all the top race teams •These high-tech piston designs offer maximum compression ratios, ultra-stiff strutted forgings, and titanium nitride-coated rings, which all add up to more power that is sustained longer •When blow-by starts to increase on other pistons and power starts to fade,Wiseco Race Series parts continue sealing and performing NOTE: Service intervals may be increased with Racer’s Choice pistons over conventional Wiseco pistons, and are for expert racers and tuners only. WISECO PISTON PRICING •All Wiseco High-Performance Motorcycle Pistons are priced with rings and circlips; see price list on pages 1029-1030 Formula for computing cubic centimeter displacement D = Bore Size in Inches; S = Stroke in Inches; Number = Number of Cylinders D(2) x .7854 x S x N x 16.387 = CC Displacement FITS MODEL STOCK BORE X STROKE (MM) BORE SIZE (MM) OVERIZE (MM) DISPLACEMENT (CC) COMPRESSION RATIO PISTON PART # PK KIT PART # RING SET PART # CIRCLIP PART # WRIST PIN PART # TOP-END BEARING PART # ARCTIC CAT/TEXTRON 400 DVX 04-08 90 x 62.6 90.0 STD 398 12.2:1 4713M09000 - - CW20 - - Nikasil Bore – cylinder sleeving or replating required for oversizes 400 DVX 04-08 90 x 62.6 90.0 STD 398 13.5:1 4714M09000 - - CW20 - - Nikasil Bore – cylinder sleeving or replating required for oversizes 400 DVX 04-08 94.5 x 62.6 94.5 4.5 440 12.5:1 0910-0768 - - CW20 - - ArmorGlide skirt coated Nikasil Bore – cylinder sleeving or big bore cylinder required 1020
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