BOLD MAGENTA part numbers are new for 2024 PISTON & PISTON KITS PARTS-UNLIMITED.COM OFFROAD | 2024 1333 HIGH PERFORMANCE PISTONS continued on next page. HIGH-PERFORMANCE PISTONS (CONT) FITS MODEL BORE (MM) X STROKE (MM) DISPL. (CC) BORE SIZE (MM) OVER SIZES (MM) PK KIT PART # PISTON PART # REPL. RING SET PART # REPL. CIRCLIPS PART # REPL. WRIST PIN PART # TOP-END BEARING PART # HUSQVARNA 4-STROKE (CONT) FE350 20-24 88 350 88.0 - - - - CW18 - - 13.5:1 compression x ArmorGlide skirt coated 57.5 FE350 20-24 88 350 88.0 - - 0910-2894 - CW18 - - 14.5:1 High Compression x ArmorGlide skirt coated 57.5 FC 450 14-15, FS450 15 95 449 95.0 - 0903-1142 - - - - - 13.5:1 High Compression x ArmorGlide skirt coated 63.4 FC 450 14-22, FS450 15-22, FX450 17-22 95 449 95.0 - - 0910-6542 - - - - 12.75:1 High Compression x ArmorGlide skirt coated 63.4 FE450 14-16 95 449 95.0 - 0903-1145 0910-3927 - - 0913-0012 - 11.8:1 Stock Compression x 63.4 FE450 14-19 95 449 95.0 - - 0910-3927 - - 0913-0012 - 11.8:1 Stock Compression x 63.4 FE 501 14-19 95 510 95.0 STD - 0910-3919 - - - - 12.5:1 High Compression x ArmorGlide skirt coated 72 KAWASAKI 2-STROKE KDX50 03-06 41 49 41.0 STD - 0910-0339 1614CD CW12 0913-0014 B1000 x 41.5 0.5 - 0910-0340 - 37.8 42.0 1.0 - 0910-0341 - 43.0 2.0 - 0910-0343 1693CD KX60 83-05 43 60 43.0 STD 0903-0920 648M04300 1693CD CW12 - 0924-0125 *Electrofusion Bore - x 43.5 0.5 - 648M04350 - Cylinder sleeving or replating 41.6 44.0 1.0 - - - required for oversizes 45.0 2.0 - 0910-0344 - KX65 00-24 44.5 64 44.5 STD 0903-0304 752M04450 - CW12 - 0924-0125 *Electrofusion Bore - Cylinder sleeving x 45.0 0.5 0903-0538 0910-1235 - or replating required for oversizes 41.6 46.5 2.00 0903-0514 752M04650 - KX65 00-24 44.5 64 44.5 STD - 0910-0761 - CW12 - 0924-0125 *Electrofusion Bore x 46.5 2.00 Racer’s Choice Single Ring. Electra Coated 41.6 KX80 79-83, KDX80 80-82 48 82 48.0 STD - - - CW14 S-288 B1006 *Electrofusion Bore - Cylinder sleeving or x 48.5 0.5 - - 1909CD replating required for oversizes 45.8 49.0 1.0 - - 1929CD KX80 84-85 48 82 48.0 STD - 514M04800 - CW14 S-5172 B1006 x 48.5 0.5 - - 1909CD 45.8 49.0 1.0 - - 1929CD KDX80 83-88 48 82 48.0 STD - 514M04800 - CW14 S-5172 B1006 *Electrofusion Bore - Cylinder sleeving or x 48.5 0.5 - - 1909CD replating required for oversizes 45.8 49.0 1.0 - - 1929CD KX80 86-87 48 82 48.0 STD - 539M04800 - CW14 S-5172 B1006 *Electrofusion Bore - Cylinder sleeving or x 48.5 0.5 - - 1909CD replating required for oversizes 45.8 49.0 1.0 - 539M04900 1929CD KX80 88-00 47 79.5 47.0 STD - - 1850CD CW14 S-517 B1006 Pro-Lite x *International Bore - not available in the U.S. 45.8 KX80 88-90 48 82 48.0 STD 0903-0261 644M04800 - CW14 S-517 B1006 Pro-Lite x 48.5 0.5 - 644M04850 1909CD *Electrofusion Bore - Cylinder sleeving or 45.8 49.0 1.0 - 644M04900 1929CD replating required for oversizes 50.0 2.00 - - 1969CD KX80 91-97 48 82 48.0 STD - 644M04800 - CW14 S-517 B1006 Pro-Lite x 48.5 0.5 0903-0243 644M04850 1909CD *Electrofusion Bore - Cylinder sleeving or 45.8 49 1.0 0903-0222 644M04900 1929CD replating required for oversizes 50.0 2.00 - - 1969CD KX80 98-00 48 82 48.0 STD 0903-0289 644M04800 - CW14 S-517 B1006 Pro-Lite x 48.5 0.5 - 644M04850 1909CD *Electrofusion Bore - Cylinder sleeving or 45.8 49.0 1.0 0903-0260 644M04900 1929CD replating required for oversizes 50.0 2.0 - - 1969CD KX85 01 48.5 84.9 48.5 STD - 782M04850 1909CD CW14 S-517 B1006 Pro-Lite x 49.0 0.5 - 0910-1237 1929CD *Electrofusion Bore - Cylinder sleeving or 45.8 49.5 1.0 - 0910-1238 1949CD replating required for oversizes 50.5 2.00 - 782M05050 1988CD KX85 01-13 48.5 84.9 48.5 STD 0903-0930 0910-0762 1909CS CW14 S-517 B1006 Racer’s Choice Single Ring. x Pro-Lite; Electra coated 45.8 CSA Ring is titanium nitride coated; ArmorGlide skirt coated 2 Piston pin not included.
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