BOLD MAGENTA part numbers are new for 2023 PISTON & PISTON KITS PARTS-UNLIMITED.COM ATV/UTV | 2023 HIGH-PERFORMANCE PISTONS continued on next page. 869 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 # HONDA (2-STROKE) (CONT) TRX250R FourTrax 87-89 66 x 72 66.0 STD 246 Stock 562M06600 - 2598CD CW18 S-482 B1003 Pro-Lite 66.25 0.25 - - 2608CD Bridged Intake 66.5 0.50 562M06650 - 2618CD Liquid Cooled 66.75 0.75 - - 2628CD 67.0 1.00 562M06700 - 2638CD 67.25 1.25 - - 2648CD 67.5 1.50 0910-1215 - 2658CD 68.0 2.00 562M06800 - 2677CD Odyssey 350 84 80 x 72 80.0 STD 342 Stock 533M08000 - 3150TD CW18 S-257 B1003 Drop-in for original 80.5 0.50 533M08050 - 3169TD 342cc engine 81.0 1.00 533M08100 - 3189TD 81.5 1.50 - - 3209TD 82.0 2.00 533M08200 - 3228TD Odyssey 350 85 78.5 x 72 80.0 1.50 329 Stock 533M08000 - 3150TD CW18 S-257 B1003 Overbore Kit 80.5 2.00 533M08050 - 3169TD for 329cc engine 81.0 2.50 533M08100 - 3189TD 81.5 3.00 - - 3209TD 82.0 3.50 533M08200 - 3228TD Pilot FL-400R 89-91 80 x 79 81.0 1.00 397 Stock 0910-2804 - 3189TD CW20 S-512X B1023 81.5 1.50 - - 3209TD 82.0 2.00 577M08200 - 3228TD HONDA (4-STROKE) ATC 185/S 80-83 63 x 57.8 65.0 2.00 191.8 10.25:1 4362M06500 0903-0316 2559XC CW15 S-522 - +.080 Overbore 65.5 2.50 4156M06550 0903-0346 2579XC *Cylinder Boring Only 66.0 3.00 4156M06600 0903-0364 2598XC 66.5 3.50 4156M06650 0903-0347 2618XC 67.0 2.00 0910-2827 0903-0501 2638XC ATC200/TRX200 81-85 65 x 57.8 65.0 STD 191.8 10.25:1 4362M06500 0903-0316 2559XC CW15 S-522 - ATC200S 81-86 65.5 0.50 4156M06550 0903-0346 2579XC 66.0 1.00 4156M06600 0903-0364 2598XC 66.5 1.50 4156M06650 0903-0347 2618XC 67.0 2.00 0910-2827 0903-0501 2638XC ATC200/TRX200 81-85 65 x 57.8 65.0 STD 191.8 12.0:1 4289M06500 - 2559XC CW15 S-522 - ATC200S 81-86 65.5 0.50 4289M06550 - 2579XC *Race part only 66.0 1.00 4289M06600 - 2598XC 67.0 2.00 - - 2638XC ATC200X/TRX200SX 86-88 65 x 60 65.0 STD 199 10.25:1 - - 2559XC CW15 S-522 - Fat Cat 200 86-87 65.5 0.50 4394M06550 - 2579XC 66.0 1.00 - - 2598XC TRX250X 87-92 4-Valve 74 x 57.3 74.0 STD 246 12.0:1 4440M07400 0903-0491 2913XC CW17 S-523 - 74.5 0.50 4440M07450 0903-0504 2933XC 75.0 1.00 4440M07500 0903-0505 2953XC 76.0 2.00 0910-2829 - 2992XC TRX250EX 01-08 68.5 x 62.2 68.5 STD 229 10.5:1 0910-0856 0903-0629 - CW15 - - 69.0 0.50 0910-0857 0903-0631 69.5 1.00 0910-0858 0903-0632 TRX250 TE/TM/X Recon 02-20 68.5 x 62.2 68.5 STD 229 10:01 0910-2825 - - CW15 - - ArmorGlide skirt coated 69.0 0.50 0910-2826 - - 69.5 1.00 0910-4153 - - TRX300 2WD/4WD 88-00 74 x 65.5 74.0 STD 282 10.25:1 4629M07400 0903-0318 2913XC CW17 S-523 - 2-Valve 74.5 0.50 4629M07450 0903-0329 2933XC 75.0 1.00 4629M07500 0903-0321 2953XC 75.5 1.50 - 0903-0330 2973XC 76.0 2.00 - 0903-0494 2992XC TRX300EX 92-08 74 x 65.5 74.0 STD 282 11:01 4574M07400 0903-0334 2913XC CW17 S-523 - 4-Valve 74.5 0.50 4574M07450 0903-0348 2933XC 75.0 1.00 4574M07500 0903-0335 2953XC 75.5 1.50 0910-0377 - 2973XC 76.0 2.00 0910-0378 0903-0313 - ATC350X/TRX350 Foreman 85-89 81 x 68 81.0 STD 350.4 10.25:1 4393M08100 0903-0317 3189XG CW21 S-529 - 81.5 0.50 4393M08150 0903-0328 3208XG 82.0 1.00 4393M08200 0903-0323 3228XG ATC350X/TRX350 Foreman 85-89 81 x 68 81.0 STD 350.4 12.0:1 - - 3189XG CW21 S-529 - 81.5 0.50 4396M08150 - 3208XG 82.0 1.00 4396M08200 - 3228XG TRX350 Rancher 00-06 78.5 x 68 78.5 STD 325 8.5:1 0910-0854 0903-0633 - CW17 - - 79.0 0.50 0910-0855 0903-0634 - 79.5 1.00 0910-2850 0903-0635 -
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