BOLD MAGENTA part numbers are new for 2025 PARTS-UNLIMITED.COM 2025 | ATV/UTV BELTS, CHAINS & SPROCKETS 746 JT SPROCKETS (CONT) FITS MODEL STOCK GEARING CHAIN SIZE FRONT SIZE PART # NOTES REAR SIZE PART # NOTES POLARIS (CONT) Cyclone 87 13-42 520-74 11 JTF3221-11 30 JTR1478-30 Scrambler 85-86 13-42 520-74 12 JTF3221-12 34 JTR1478-34 Trail Blazer 90 13-42 520-88 13 JTF3221-13 36 JTR1478-36 Trail Blazer 91 13-34 520-84 38 JTR1478-38 Trail Blazer 92 11-34 520-84 40 JTR1478-40 Trail Blazer 93 11-38 520-86 42 JTR1478-42 Trail Blazer 94 11-40 520-86 Trail Blazer 95-99 12-42 520-88 Trail Blazer 00 11-38 520-0 Trail Blazer 01 (built before 7/15/2000) 11-38 520-0 Trail Blazer 01 (built after 7/15/2000) 11-36 520-0 Trail Blazer 02-03 11-36 520-76 250 Big Boss 4x6 89 13-42 520-88 13 JTF3221-13 30 JTR1478-30 1 Axle to axle 30-30 520-108 42 JTR1478-42 250 Big Boss 4x6 90-92 12-42 520-88 12 JTF3221-12 2 30 JTR1478-30 1 Axle to axle 30-30 520-108 42 JTR1478-42 Big Boss 6x6 91-92 12-42 520-88 11 JTF3222-11 2 30 JTR1478-30 1 Front - 520-64 11 JTF3221-11 42 JTR1478-42 3 Countershaft inner - 520-88 12 JTF3221-12 Countershaft outer - 520-72 22 JTF3323-22 Center inner - 520-108 Center outer - - Axle to axle 30-30 520-108 Trail Boss 250 85-89 13-42 520-88 11 JTF3221-11 30 JTR1478-30 Trail Boss 250 90 13-38 520-86 12 JTF3221-12 34 JTR1478-34 Trail Boss 250 91-93 13-34 520-84 13 JTF3221-13 36 JTR1478-36 Trail Boss 250 94 11-40 520-86 38 JTR1478-38 Trail Boss 250 95-99 12-42 520-88 40 JTR1478-40 42 JTR1478-42 Trail Boss 4x4 87-88 12-42 520-74 11 JTF3221-11 42 JTR1478-42 3 Front - 520-64 12 JTF3221-12 2 Countershaft inner - 520-74 22 JTF3323-22 Countershaft outer - 520-64 Center inner - - Trail Boss 4x4 89-92 12-42 520-88 12 JTF3221-12 2 42 JTR1478-42 3 Front - 520-64 22 JTF3323-22 Countershaft inner - 520-88 12 JTF3221-12 Countershaft outer - 520-70 11 JTF3222-11 Center inner - - 11 JTF3221-11 Center outer - - 22 JTF3323-22 Trail Boss 2x4 85 13-38 520-0 11 JTF3221-11 30 JTR1478-30 Trail Boss 2x4 86-87 13-42 520-74 12 JTF3221-12 34 JTR1478-34 Trail Boss 2x4 88-93 13-38 520-86 13 JTF3221-13 36 JTR1478-36 38 JTR1478-38 40 JTR1478-40 42 JTR1478-42 Xplorer 4x4 95-99 13-40 520-84 13 JTF3221-13 2 40 JTR1478-40 3 Front - 520-64 22 JTF3323-22 Countershaft inner - - 13 JTF3221-13 Countershaft outer - 520-70 11 JTF3222-11 Center inner - - 11 JTF3221-11 Center outer - - 22 JTF3323-22 Xplorer 4x4 01-02 12-42 520-80 11 JTF3221-11 30 JTR1478-30 12 JTF3221-12 34 JTR1478-34 13 JTF3221-13 36 JTR1478-36 38 JTR1478-38 40 JTR1478-40 42 JTR1478-42
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