BOLD MAGENTA part numbers are new for 2023 PISTON & PISTON KITS PARTS-UNLIMITED.COM ATV/UTV | 2023 HIGH-PERFORMANCE PISTONS continued on next page. 867 PART # SUG. RETAIL 0910-5126 $367.70 RACER ELITE™ 4-STROKE CR SERIES PISTON FOR HONDA TRX450R/ER 06-14 • R&D developed to provide dyno-proven power gains • Asymmetric skirt design for improved wear and even loading on major thrust skirt • Precision-fit ring; custom-lapped compression ring for improved power • 100% billet machined for superior strength-to-weight ratio and optimized fit • High compression (14:1) for maximum torque and throttle response • Dome design improves flame travel to maximize air/fuel burn efficiency • DLC-coated piston pin reduces friction and improves scuff resistance • Enhanced pin oiling for improved lubrication and reduced friction • Pressure seal groove reduces ring lifting and power loss • For standard 96mm bore • ArmorGlide® skirt coating reduces friction for quieter operation, improved scuff resistance • Piston includes rings, pin, and circlips 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 877 CIRCLIPS • Two high-strength, easy-to-install circlips furnished with every piston • Order additional inventory from the chart below • See price list on page 877 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 877 REPLACEMENT RING SETS • Each ring set is for one piston • See Wiseco ring buyer’s guide for details • See price list on page 877 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 pages 876-877 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 876-877 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
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