BOLD MAGENTA part numbers are new for 2026 PISTON & PISTON KITS PARTS-UNLIMITED.COM OFFROAD | 2026 PISTON & PISTON KITS 1437 PISTON KITS continued on next page. 2 Dual ring. 3 Two ring design. 4 Double bridge forging. 5 Gas ported. 6 3D crown. FITS MODEL BORE SIZE (MM) PISTON SIZE (MM) OVERSIZE (MM) PISTON KIT PART # REPLACEMENT RING SET PART # KAWASAKI (CONT) KDX220R 97-05 69 68.94 STD 0910-55092, 11 - KDX250 80-82 70 69.94 STD 0910-55752, 11 - KX250 78-86 70 69.94 STD 0910-55752, 11 - KX250 87-89 67.4 67.34 STD 0910-55442, 11 - 67.41 67.35 0.01 0910-55452, 11 - KX250 90-91 67.41 67.35 0.01 0910-55332, 11 - KX250 92-01 66.4 66.34 STD 0910-47402, 11 - 66.41 66.35 0.01 0910-47412, 11 - 66.42 66.36 0.02 0910-47422, 11 - 67 66.94 0.6 0910-47392, 11 - KX250 02-04 66.4 66.34 STD 0910-48092, 11 - KX250 05-07 66.41 66.35 0.01 0910-55662, 11 - KX250 19 77 76.96 STD 0910-61653, 4, 6 - 77.01 76.97 0.01 0910-61663, 4, 6 - KX250F 04-05 77.01 76.97 0.01 0910-4936 0912-0755 KX250F 06-09 77 76.96 STD 0910-49533 0912-0755 77.01 76.97 0.01 0910-49543 0912-0755 77.02 76.98 0.02 0910-49553 0912-0755 KX250F 11-14 77 76.96 STD 0910-49893, 4 0912-0755 77.02 76.98 0.02 0910-49913, 4 0912-0755 KX250F 17-18 77 76.96 STD 0910-61653, 4, 6 0912-0755 77.01 76.97 0.01 0910-61663, 4, 6 0912-0755 KLX400R 03-04 90 89.94 STD 0910-4927 - 90.01 89.95 0.01 0910-4928 - KX450F 13-14 96 95.96 STD 0910-6130 0912-0861 KX450F 15 96.03 95.98 STD 0910-61633 0912-0861 KX450F 16-18 96 95.95 STD 0910-68407 - 96.03 95.98 STD 0910-61643 0912-0861 KX450 19-23 96 95.96 STD 0910-61683, 5 0912-0861 96.01 95.97 0.01 0910-61693, 5 0912-0861 KX450SR 22-23 96 95.96 STD 0910-61683, 5 0912-0861 96.01 95.97 0.01 0910-61693, 5 0912-0861 KX450XC 21-23 96 95.96 STD 0910-61683, 5 0912-0861 96.01 95.97 0.01 0910-61693, 5 0912-0861 KX500 88-04 86 85.93 STD 0910-48892 - KTM 50 SX 09-25 39.5 39.46 STD 0910-4899 - 39.51 39.47 0.01 0910-4900 - 39.52 39.48 0.02 0910-4901 - 65 SX 09-25 45.02 44.96 STD 0910-4890 - 45.03 44.97 0.01 0910-4891 - 45.04 44.98 0.02 0910-4892 - 85 SX 03-25 47 46.95 STD 0910-4847 - 47 46.95 STD 0910-66232 - 47.01 46.96 0.01 0910-4848 - 47.01 46.96 1 0910-66242 - 47.02 46.97 0.02 0910-4849 - 47.02 46.97 2 0910-66252 - 85 SX Big Bore 03-25 52 51.95 STD 0910-6846 - 85 XC 08-09 47 46.95 STD 0910-4847 - 47 46.95 STD 0910-66232 - 47.01 46.96 0.01 0910-4848 - 47.01 46.96 1 0910-66242 - 47.02 46.97 0.02 0910-4849 - 47.02 46.97 2 0910-66252 - 105 SX 04-11 52 51.95 STD 0910-6846 - 125 EXC 01-16 54 53.95 STD 0910-48692 - 54 53.95 STD 0910-4884 - 54.01 53.96 0.01 0910-4885 - 54.01 53.96 0.01 0910-48702 - 54.02 53.97 0.02 0910-48712 - 125 SX 01-06 54 53.95 STD 0910-4766 - 54.02 53.97 0.02 0910-4768 - 125 SX 07-25 54 53.95 STD 0910-4884 - 54 53.95 STD 0910-48692 - 54.01 53.96 0.01 0910-4885 - 54.01 53.96 0.01 0910-48702 - 54.02 53.97 0.02 0910-48712 - PISTON KITS (CONT) 7 PRO series. 11 Intake window.
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