2021 Parts Unlimited Offroad

ENGINE parts-unlimited.com 2021 PARTS UNLIMITED OFFROAD BOLD MAGENTA part numbers are new for 2021 1033 DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES. SEE PAGE 4 FOR IMPORTANT EMISSION DEFINITIONS AND REGULATORY COMPLIANCE AND WARRANTY INFORMATION. CYLINDERS AND CYLINDER KITS continued on next page. 1 Requires case machining; instructions included. FITS MODEL DESCRIPTION COMPRESSION RATIO BORE (MM) PART # SUG. RETAIL HONDA CRF150R/ RB 07-09 Standard Bore kit 11.7:1 66 0931-0269 $411.95 Standard Bore cylinder (only) - 66 0931-0163 232.95 Standard Bore high-compression kit - 66 0931-0288 431.95 CRF150R/ RB 12-21 Standard Bore kit 11.7:1 66 0931-0486 411.95 Standard Bore cylinder (only) - 66 0931-0163 232.95 +2mm Big Bore, 159cc kit 11.7:1 68 0931-0485 499.95 CRF250R 04-07 Standard Bore cylinder (only) - 78 0931-0128 262.95 Standard Bore kit 12.9:1 78 0931-0270 454.95 Standard Bore high-compression kit 13.4 78 0931-0289 474.95 +3mm Big Bore, 269cc kit 13.0:1 81 0931-0118 1 535.95 +3mm Big Bore gasket kit - - 0934-1521 50.95 CRF250R 08-09 Standard Bore cylinder (only) - 78 0931-0128 262.95 Standard Bore kit 13.0:1 78 0931-0271 454.95 Standard Bore high-compression kit - - 0931-0290 480.95 +3mm Big Bore, 269cc kit 13.0:1 81 0931-0118 535.95 +3mm Big Bore gasket kit - - 0934-1521 50.95 CRF250R 10-13 Standard Bore cylinder (only) - 76.8 0931-0392 262.95 Standard Bore kit 13.2:1 76.8 0931-0338 454.95 +3.2mm Big Bore, 270cc kit 13.2:1 80 0931-0340 555.95 +3.2mm Big Bore gasket kit - - 0934-2383 60.95 FITS MODEL DESCRIPTION COMPRESSION RATIO BORE (MM) PART # SUG. RETAIL HONDA (CONT) CRF250R 14-15 Standard Bore cylinder (only) - 76.8 0931-0392 $262.95 Standard Bore cylinder kit 13.5:1 76.8 0931-0583 454.95 Standard Bore high-compression kit 14.1:1 76.8 0931-0584 484.95 +3.2mm Big Bore, 270cc kit 13.2:1 80 0931-0340 555.95 +3.2mm Big Bore gasket kit - - 0934-2383 60.95 CRF250R 16-17 Standard Bore cylinder (only) - 76.8 0931-0392 262.95 Standard Bore kit 13.5:1 76.8 0931-0674 454.95 Standard Bore high-compression kit 14.3:1 76.8 0931-0707 494.95 +3.2mm Big Bore, 270cc kit 13.2:1 80 0931-0340 555.95 +3.2mm Big Bore gasket kit - - 0934-2383 60.95 CRF250R 18-19 Standard Bore kit 13.9:1 79 0931-0845 464.95 Standard Bore high-compression kit 14.6:1 79 0931-0846 504.95 +3mm Big Bore, 468cc kit 13.9:1 82 0931-0847 559.95 +3mm Big Bore gasket kit - - 0934-6344 60.95 CRF250RX 19 Standard Bore kit 13.9:1 79 0931-0845 464.95 Standard Bore high-compression kit 14.6:1 79 0931-0846 504.95 +3mm Big Bore, 468cc kit 13.9:1 82 0931-0847 559.95 +3mm Big Bore gasket kit - - 0934-6344 60.95 CRF250X 04-17 Standard Bore cylinder (only) - 78 0931-0128 262.95 Standard Bore kit 12.9:1 78 0931-0270 454.95 Standard Bore high-compression kit 13.4 78 0931-0289 474.95 +3mm Big Bore, 269cc kit 13.0:1 81 0931-0118 1 535.95 +3mm Big Bore gasket kit - - 0934-1521 50.95 CYLINDERS AND CYLINDER KITS • Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders • Three kit options to choose from: Standard Bore, Standard Bore High-Compression and Big Bore • Cylinder kits include matched Vertex pistons to ensure longevity, performance and reduced engine noise • Nickel silicon carbide-plated for long life • Kits come complete with gaskets, cylinder, piston, rings, pin and clips • Big bore cylinders do not require machine work (unless noted) • Replacement Vertex piston, rings, clips and pins also available; see pages 1089-1091 • Made in the U.S.A. 0931‑0270