BOLD MAGENTA part numbers are new for 2025 BELTS, CHAINS & SPROCKETS PARTS-UNLIMITED.COM ATV/UTV | 2025 747 JT SPROCKETS (CONT) JT SPROCKETS continued on next page. FITS MODEL STOCK GEARING CHAIN SIZE FRONT SIZE PART # NOTES REAR SIZE PART # NOTES POLARIS (CONT) 300 4x4 94-95 13-40 520-84 13 JTF3221-13 2 40 JTR1478-40 Front - 520-64 22 JTF3323-22 Countershaft inner - 520-84 13 JTF3221-13 Countershaft outer - 520-70 11 JTF3222-11 Center inner - - 11 JTF3221-11 Center outer - - 22 JTF3323-22 300 2x4 95-96 12-38 520-86 11 JTF3221-11 30 JTR1478-30 Xpress 96-99 - - 12 JTF3221-12 34 JTR1478-34 13 JTF3221-13 36 JTR1478-36 38 JTR1478-38 40 JTR1478-40 42 JTR1478-42 300 6x6 94 13-40 520-84 13 JTF3221-13 30 JTR1478-30 1 Front - 520-64 22 JTF3323-22 42 JTR1478-42 3 Countershaft inner - 520-88 13 JTF3221-13 Countershaft outer - 520-72 11 JTF3222-11 Center inner - 520-108 11 JTF3221-11 Center outer - - - - Axle to axle 30-30 520-108 - - Trail Boss 2x4 325 00 11-42 520-80 11 JTF3221-11 30 JTR1478-30 Trail Boss 2x4 325 01-02 11-40 520-78 12 JTF3221-12 34 JTR1478-34 13 JTF3221-13 36 JTR1478-36 38 JTR1478-38 40 JTR1478-40 42 JTR1478-42 Trail Blazer 2x4 330 08-10 11-40 520-78 11 JTF3221-11 30 JTR1478-30 Trail Boss 2x4 330 03-10 11-40 520-78 12 JTF3221-12 34 JTR1478-34 13 JTF3221-13 36 JTR1478-36 38 JTR1478-38 40 JTR1478-40 42 JTR1478-42 Trail Boss 350L/Sportsman 4x4 93 12-34 520-64 12 JTF3221-12 2 34 JTR1478-34 3 Front - 520-64 22 JTF3323-22 Countershaft inner - 520-84 12 JTF3221-12 Countershaft outer - 520-70 11 JTF3222-11 Center inner - - 12 JTF3221-12 Center outer - - 22 JTF3323-22 Trail Boss 2x4 350L 90-93 13-34 520-84 11 JTF3221-11 30 JTR1478-30 13-34 520-84 12 JTF3221-12 34 JTR1478-34 13 JTF3221-13 36 JTR1478-36 38 JTR1478-38 40 JTR1478-40 42 JTR1478-42 Trail Boss 4x4 350L 90-91 12-34 520-84 12 JTF3221-12 2 34 JTR1478-34 3 Front - 520-64 22 JTF3323-22 Countershaft inner - 520-84 12 JTF3221-12 Countershaft outer - 520-70 11 JTF3221-11 Center inner - - 12 JTF3221-12 Center outer - - 22 JTF3323-22 4x4 350L 92 12-34 520-84 12 JTF3221-12 2 34 JTR1478-34 3 Front - 520-64 22 JTF3323-22 Countershaft inner - 520-84 12 JTF3221-12 Countershaft outer - 520-70 11 JTF3222-11 Center inner - - 12 JTF3221-12 Center outer - - 22 JTF3323-22 4x4 350L 93 12-34 520-84 12 JTF3221-12 2 34 JTR1478-34 3 Front - 520-64 22 JTF3323-22 Countershaft inner - 520-84 12 JTF3221-12 Countershaft outer - 520-70 11 JTF3222-11 Center inner - - 11 JTF3221-11 Center outer - - 22 JTF3323-22
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