BOLD MAGENTA part numbers are new for 2026 PISTON & PISTON KITS PARTS-UNLIMITED.COM ATV/UTV | 2026 PISTON & PISTON KITS 1077 FITS MODEL SIZE PART # HONDA (CONT) TRX450ES 98-04 Std. 0903-1346 0.25 mm over 0903-1347 0.5 mm over 0903-1348 0.75 mm over 0903-1349 1 mm over 0903-1350 TRX500FE/FM Foreman 05-11 Std. 0903-1326 0.25 mm over 0903-1327 0.5 mm over 0903-1328 1 mm over 0903-1330 KAWASAKI KLF220 Bayou 98-02 Std. 0903-1371 0.25 mm over 0903-1372 0.5 mm over 0903-1373 KLF250 Bayou 03-11 Std. 0903-1376 1 mm over 0903-1380 KSF250 Mojave 87-04 Std. 0903-1391 0.25 mm over 0903-1392 KLF300 Bayou 88-04, KEF300 Lakota 95-03 Std. over 0903-1381 0.5 mm over 0903-1383 1 mm over 0903-1385 KVF300 Prairie 99-02 Std. 0903-1386 KFX400 03-05 Std. 0903-1466 KVF650 Brute Force 05-13, Prairie 4x4 650 02-03 Std. 0903-1401 0.25 mm over 0903-1402 0.5 mm over 0903-1403 KVF750 Brute Force 05-11 Std. 0903-1396 0.25 mm over 0903-1397 0.5 mm over 0903-1398 1 mm over 0903-1400 POLARIS Models with 250 engines (all) 85-06 Std. 54-300-10 0.5 mm over 54-300-12 1 mm over 54-300-14 300 Trail Boss/Explorer 96-99 Std. 0903-1027 0.25 mm over 0903-1028 0.5 mm over 0903-1029 0.75 mm over 0903-1030 1 mm over 0903-1031 400 (all w/ oval piston port) 94-96 Std. 54-305-10 0.5 mm over 54-305-12 1 mm over 54-305-14 400 (all 2-stroke) 97-03 Std. 0903-0756 0.5 mm over 0903-0757 Magnum 500 4x4 03 Std. 0903-1406 0.25 mm over 0903-1407 0.5 mm over 0903-1408 0.75 mm over 0903-1409 1 mm over 0903-1410 Scrambler 500 2x4 07-09 Std. 0903-1406 0.25 mm over 0903-1407 0.5 mm over 0903-1408 0.75 mm over 0903-1409 1 mm over 0903-1410 Scrambler 500 4x4 03-12 Std. 0903-1406 0.25 mm over 0903-1407 0.5 mm over 0903-1408 0.75 mm over 0903-1409 1 mm over 0903-1410 Sportsman 500 04-14 Std. 0903-1406 0.25 mm over 0903-1407 0.5 mm over 0903-1408 0.75 mm over 0903-1409 1 mm over 0903-1410 RZR 800 02-10 Std. 0903-1484 Ranger 900/1 000 14-17 Std. 0903-1485 FITS MODEL SIZE PART # SUZUKI LT-Z400 03-10 Std. 0903-1466 YAMAHA YFM80 Grizzly 05-08 Std. 0903-1411 0.25 mm over 0903-1412 0.5 mm over 0903-1413 1 mm over 0903-1415 YRM80 Raptor 02-08 Std. 0903-1411 0.25 mm over 0903-1412 0.5 mm over 0903-1413 1 mm over 0903-1415 YFM80 86-01 Std. 0903-1411 0.25 mm over 0903-1412 0.5 mm over 0903-1413 1 mm over 0903-1415 YFS200 Blaster 88-06 Std. 54-530-10 1 mm over 54-530-14 YFZ350 Banshee 87-06 Std. 54-520-10 0.5 mm over 54-520-12 1 mm over 54-520-14 YFM350 Big Bear 97-99 Std. 0903-1416 0.5 mm over 0903-1418 0.75 mm over 0903-1419 1 mm over 0903-1420 YFM350 Bruin 05-06 Std. 0903-1416 0.5 mm over 0903-1418 0.75 mm over 0903-1419 1 mm over 0903-1420 YFM350 Grizzly 07-14 Std. 0903-1416 0.5 mm over 0903-1418 0.75 mm over 0903-1419 1 mm over 0903-1420 YFM350 Raptor 04-13 Std. 0903-1416 0.5 mm over 0903-1418 0.75 mm over 0903-1419 1 mm over 0903-1420 YFM350X Warrior 87-04 Std. 0903-1416 0.5 mm over 0903-1418 0.75 mm over 0903-1419 1 mm over 0903-1420 YFM660 Grizzly 02-06 Std. 0903-1421 0.5 mm over 0903-1423 1 mm over 0903-1425 YFM660R Raptor 660 01-05 Std. 0903-1421 0.5 mm over 0903-1423 1 mm over 0903-1425 YXR660 Rhino 04-07 Std. 0903-1421 0.5 mm over 0903-1423 1 mm over 0903-1425 YFM700R Raptor 01-05 Std. 0903-1431 TOP-END REBUILD KITS (CONT)
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