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for Big Twin 1939-1953

S&S Pinion Gears

for Big Twin 1939-1953

Pinion gears in proven S&S quality. The color code is identical to the factory codes so they can be used as stock replacement. If the color code is unknown we recommend to order a gear in the middle size range. These sizes fit 9 out of 10 engines and provide adequate clearance under most circumstances. As a rule of thumb it is preferable to allow slightly more gear lash than too little.

  • fits Big Twin 1939-1953
  • replaces OEM 24010-39

Cam gear noise

While some positive backlash is necessary to prevent gear tooth overloads, excess backlash (“clicking“) may sound annoying but won´t hurt anything. To correct noisy gears use either a larger cam gear or pinion gear. Tight fitting pinion and cam gears will cause very noticeable whining as a result of running with zero backlash which is a serious problem. In this case a smaller cam gear or pinion gear is required.
Item №
Version
net price*
unit
Availability in warehouse Germany
for Big Twin 1939-1953
61-600
black; Ø 36.78 mm
$243.43
each
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for Big Twin 1939-1953
61-601
blue; Ø 36.77 mm
$243.43
each
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for Big Twin 1939-1953
61-603
green; Ø 36.75 mm
$243.43
each
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* The price includes German VAT (19% or reduced rate of 7% for Books).