fits  L77-89 Big Twin (NU) (average size)

Gear size over .105″ pins: 1.4729-1.4737″. Cam gear over .105″ pins: 2.7354-2.7364″. Made from the finest American aerospace quality tool steel. Precision machined to exact tolerances with no compromises. Note: Cam gear fitment is essential to quiet valve train operation. Too loose of a fit will result in a clicking noise, sometimes confused with lifter noise. A too tight fit will produce a whining sound and premature wear. Sizes are as follows: 961307 Orange (biggest). Repl. 24040-78. 961308 White. Repl. 24041-78. 961309 Yellow. Repl. 24042-78. 961310 Red (average). Repl. 24043-78. 961311 Blue (average). Repl. 24044-78. 961312 Green. Repl. 24045-78. 961313 Black (smallest). Repl. 24046-78.

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Home > Parts > Engine > Lower End > Pinion Gears > JIMS, pinion gear L77-89. Red

fits  L77-89 Big Twin (NU) (average size)

Note: All S&S pinion shaft gears are designed to be used with a 73-99 B.T. style 24T driven gear (OEM 26345-73 / MCS 531209 S&S). Color coding sequence is identical to stock H-D coding. When in doubt use a gear from the middle to the small side of the range. A combination of smaller gears should provide adequate gear clearance under most circumstances. Both excessive and zero gear lash combinations cause engine noise, but no gear lash causes binding and premature wear. Sizes are as follows: 909084 Orange (biggest). Repl. 24040-78. 909085 White. Repl. 24041-78. 909090 Yellow. Repl. 24042-78. 909095 Red (average). Repl. 24043-78. 909100 Blue (average). Repl. 24044-78. 909105 Green. Repl. 24045-78. 909106 Black (smallest). Repl. 24046-78.

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Home > Parts > Engine > Lower End > Pinion Gears > S&S, pinion gear L77-89. Red