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2013 Moto En

674 Wiseco Pistons Model Years Bore Bore Top End MTV # Wiseco MTV # Repl. MTV # Repl. MTV # Stroke Size Kit No. Piston Ring Set bearing Pin & (mm) (mm) Part No. Part No. Clips Honda Motorcycle 4-Stroke (cont.) XL250 1979-83 74 74 4171M07400 316-0180 2913XC 316-2907 S376 316-3116 XR250 thru 1983 x 74.5 4171M07450 316-0181 2933XC 316-2961 10:1 Compression 57.8 75 4171M07500 316-0182 2953XC 316-2906 CW19 316-1911 Cylinder boring required for oversizes 75.5 4171M07550 316-0183 2973XC 316-2967 76 4171M07600 316-0184 2992XC 316-2909 XR250 1984-85 75 75 4329M07500 316-0185 2953XG 316-2992 S523 316-3164 x 75.5 4329M07550 316-0186 2973XG 316-2993 10.5:1 Compression 56.5 76 4329M07600 316-0187 2992XG 379-5533 CW17 316-1904 Cylinder boring required for oversizes XL250 Radial Head 1984-87 75 75 4329M07500 316-0185 2953XG 316-2992 S523 316-3164 x 75.5 4329M07550 316-0186 2973XG 316-2993 10.5:1 Compression 56.5 76 4329M07600 316-0187 2992XG 379-5533 CW17 316-1904 Cylinder boring required for oversizes XR250 1986-04 73 73 PK1219 316-1430 4466M07300 316-0304 2874XC 316-3001 S533 316-3149 XRL250 1991-96 x 73.5 PK1220 316-1431 4466M07350 316-0305 2894XC 316-3002 (73- 59.5 74 PK1221 316-1432 4466M07400 316-0306 2913XC 316-2907 75.5mm) 75.5 4466M07550 316-0307 2973XC 316-2967 S523 316-3164 77 PK1223 316-1434 4466M07700 316-0308 3032XC 316-3003 (77- 10.5:1 Compression 78 PK1224 316-1435 4466M07800 316-0309 3071XC 316-2912 78mm) Cylinder boring required for oversizes CW17 316-1904 CRF250X 2004-09/2012-13 78 78 PK1236 316-1447 4829M07800 379-5421 7800YB 379-5435 S686 316-3133 x 12.9:1 Stock Compression 52.2 CW16 316-1903 ArmorGlide skirt coated CRF250X 2004-09/2012-13 78 78 PK1240 316-1451 4852M07800 379-5475 7800YB 379-5435 S686 316-3133 x 13.5:1 High-Compression 52.2 CW16 316-1903 ArmorGlide skirt coated CRF250R 2004-07 78 78 PK1236 316-1447 4829M07800 379-5421 7800YB 379-5435 S686 316-3133 x 12.9:1 Stock Compression 52.2 CW16 316-1903 ArmorGlide skirt coated CRF250R 2004-07 78 78 PK1240 316-1451 4852M07800 379-5475 7800YB 379-5435 S686 316-3133 x 13.5:1 High-Compression 52.2 CW16 316-1903 ArmorGlide skirt coated CRF250R RACERS CHOICE SERIES 2004-07 78 78 RC840M07800 316-3839 7800YBA 316-3862 S686 316-3133 12.8:1 High Compression x Boxed Forging 52.2 CW16 316-1903 Shot peened Titanium Nitride coated rings ArmorGlide skirt coated CRF250R 2008-09 78 78 PK1858 316-0104 4949M07800 316-8187 7800YB 379-5435 S686 316-3133 13.1:1 Stock Copmpression x ArmorGlide skirt coated 52.2 CW16 316-1903 CRF250R 2008-09 78 78 PK1859 316-0432 4972M07800 316-8188 7800YB 379-5435 S686 316-3133 13.6:1 High-Compression x ArmorGlide skirt coated 52.2 CW16 316-1903 CRF250R RACERS CHOICE SERIES 2008-09 78 78 RC854M07800 316-3842 7800YBA 316-3862 S686 316-3133 14:1 High Compression x Boxed Forging 52.2 CW16 316-1903 Shot peened Titanium Nitride coated rings ArmorGlide skirt coated CRF250R 2004-09 78 82 CK220 316-0447 4984M08200 316-8189 3228ZG 316-2519 S677 316-3199 13.5:1 Compression x 276CC Big Bore Kit 52.2 CW16 316-1903 ArmorGlide skirt coated *Kit included pistons, rings, piston pins, retainer clips, gasket, and cylinder CRF250R 2010-13 76.8 76.8 PK1874 316-0248 40003M07680 379-5538 7680MC 316-2525 S686 316-3133 13.2:1 Stock Copmpression x ArmorGlide skirt coated 53.8 CW16 316-1903 CRF250R 2010-13 76.8 76.8 PK1875 316-0249 40004M07680 379-5539 7680MC 316-2525 S686 316-3133 14.2:1 High-Compression x ArmorGlide skirt coated 53.8 CW16 316-1903 CRF250R 2010-13 76.8 79 40011M07900 379-5682 7900YBX 316-2527 S686 316-3133 x 13.5:1 High Compression 53.8 CW16 316-1903 264cc BIG BORE ArmorGlide skirt coated CRF250R RACERS CHOICE SERIES 2010-12 76.8 76.8 RC878M07680 316-3844 7680MCA 316-3860 S686 316-3133 14.5:1 High Compression x Boxed Forging 53.8 CW16 316-1903 Shot peened Titanium Nitride coated rings ArmorGlide skirt coated All Wiseco piston kits are supplied with piston, ring and circlips. Wrist pins are included where noted. Top End bearings MUST be purchased separately.


2013 Moto En
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