BOLD MAGENTA part numbers are new for 2023 PARTS-UNLIMITED.COM 2023 | ATV/UTV PISTON & PISTON KITS 874 HIGH-PERFORMANCE PISTONS (CONT) 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 # YAMAHA (2-STROKE) (CONT) YFZ350 Banshee 87-07 (Liquid Cooled Twin) 64 x 54 64.0 STD 346 Stock 513M06400 0903-0752 2520CD CW16 S-486 B1005 Pro-Lite 64.25 0.25 350 0910-2794 0903-0917 - 64.5 0.50 352 513M06450 0903-0753 2539CD 64.75 0.75 355 513M06475 0903-0630 2549CD 65.0 1.00 358 513M06500 0903-0618 2559CD 65.25 1.25 361 513M06525 0903-0636 2569CD 65.5 1.50 364 513M06550 0903-0754 2579CD 66.0 2.00 370 513M06600 0903-0620 2598CD 66.25 2.25 372 513M06625 0903-0755 2608CD 66.5 2.50 375 0910-3956 0903-0637 2618CD YFZ350 Banshee 87-06 (Liquid Cooled Twin) 64 x 54 64.0 STD 346 Stock 795M06400 0903-0467 2520CD CW16 S-486 B1005 Long connecting rod (+5mm) 64.5 0.50 352 795M06450 0903-0465 2539CD Piston. Use with Wiseco 65.0 1.00 358 795M06500 0903-0466 2559CD PART #WPC114. (Racer’s Choice) 65.5 1.50 364 795M06550 0903-0468 2579CD 66.0 2.00 370 795M06600 - 2598CD YFZ350 Banshee 87-06 (Liquid Cooled Twin) 64 x 54 64.0 STD 346 Stock 795M06400 - 2520CD CW16 S-486 - Long connecting rod (+5mm) 64.5 0.50 352 795M06450 - 2539CD Stroker (+4mm) piston. Use w/ 65.0 1.00 358 795M06500 - 2559CD Wiseco crank PART #WPC129 65.5 1.50 364 795M06550 - 2579CD (Racer’s Choice) 66.0 2.00 370 795M06600 - 2598CD YAMAHA (4-STROKE) YFM80 Badger 85-01/ YFM80 Raptor 02-06 47 x 45.6 47.0 STD 79 11:1 0910-0389 0903-0660 0912-0112 CW13 - - YFM80 Moto 4 85-93, 47.5 0.50 81 0910-0390 0903-0661 0912-0113 YFM80/G Grizzly 05 48.0 1.00 83 0910-0391 0903-0662 0912-0114 50.0 3.00 90 - 0903-0663 - YFM125R Raptor 11-13 54 x 54 54.0 STD 124 11:1 0910-4155 - - CW16 - - 54.5 0.50 0910-4156 - - 55.0 1.00 0910-4157 - - YFM125R Raptor 11-13 54 x 54 54.0 STD 124 13:1 0910-4158 - - CW16 - - 54.5 0.50 0910-4159 - - 55.0 1.00 0910-4160 - - YFM/YTM 200 84-85 67 x 55.7 67.0 STD 196.3 10.25:1 4292M06700 - 2638XC CW16 S-256 - Moto-4/YFM/DXT 87-88 67.5 0.50 4292M06750 - 2658XC YTM/YFM 225 84-88 70 x 58 70.0 STD 223.6 10.25:1 4312M07000 - 2756XC CW16 S-259 - Moto-4 87-88 70.5 0.50 4312M07050 - - 71.0 1.00 4312M07100 - 2795XC YFM250 Timberwolf 90-00 71 x 58 71.0 STD 229.6 8.7:1 4675M07100 0903-0322 - CW16 - - YFB250 Bear Tracker 00-04, Bruin 05-06, Big Bear 250 07-09 71.5 0.50 4675M07150 0903-0350 - 72.0 1.00 4675M07200 0903-0319 - YFM250R Raptor 07-13 74 x 58 74.0 STD 249 10.5:1 0910-2854 - - CW17 - - ArmorGlide skirt coated YFM250R Raptor 07-13 74 x 58 74.0 STD 249 13:1 0910-4164 - - CW17 - - ArmorGlide skirt coated 76.0 2.00 0910-4165 - - YFM250R Raptor 07-13 74 x 58 81.0 7.00 299 11:1 0910-2855 - 3189XG CW17 - - ArmorGlide skirt coated; Big bore sleeve required YFM350X Warrior 87-04, YFM350 Raptor 05-13 83 x 64.5 83.0 STD 349 10.25:1 4419M08300 0903-0360 3268XC CW19 S-376 - YFM350 Big Bear 89-99, 350 Grizzly 07-14 83.5 0.50 4419M08350 0903-0373 3287XC BW350 Big Wheel 99, YFM350 Moto 4 99 84.0 1.00 4419M08400 0903-0366 3307XC ArmorGlide skirt coated YFM350X Warrior 87-04, YFM350 Raptor 05-13 83 x 64.5 83.0 STD 349 11:1 0910-4174 - 3268XC CW19 S-376 - YFM350 Big Bear 89-99, 350 Grizzly 07-14 83.5 0.50 0910-4175 - 3287XC BW350 Big Wheel 99, YFM350 Moto 4 99 84.0 1.00 0910-4176 - 3307XC ArmorGlide skirt coated YFM350X Warrior 87-04, YFM350 Raptor 05-13 83 x 64.5 83.0 STD 349 12:1 0910-3939 - 3268XC CW19 S-376 - YFM350 Big Bear 89-99, 350 Grizzly 07-14 83.5 0.50 0910-3940 - 3287XC BW350 Big Wheel 99, YFM350 Moto 4 99 84.0 1.00 0910-3941 - 3307XC ArmorGlide skirt coated
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