S&S Cycle 90-99 B.T. Pinion Shaft Gear/Conversion Kit. Black for Harley-Davidson Late 1977-1984 Shovelhead; 1984-1989 Evo Big Twin; Conversion Kit for 1990-1999 Evo Big Twin When Using Custom Pre-1990 Multiple Parts Flywheel Assemblies - 33-4180
Description
Black color coded for smallest size. Stock replacement for all L77-89 B.T. models. Used as conversion kit on 90-99 Evo B.T. with pre-90 pinion shaft. For 1989 and earlier type pinion shafts used on 90-99 Evo B.T. models (engines that use S&S flywheels or other multiple parts flywheel assemblies) S&S offers this conversion package. Kits include a color coded 77-89 pinion gear; 54-89 oil pump drive gear; 54-89 pinion shaft gear spacer and a 54-89 pinion shaft gear nut. Note see: 531306 Black (smallest); 531308 Blue (average); 904148 Red (average); 531309 Yellow (biggest). Note: All kits must be used with a 73-99 B.T. style oil pump driven gear (S&S 531209 / OEM 26345-73). Note: If the stock gear is unmarked and the size is unknown or you are scratch building an engine and without gear; S&S recommend a gear in the middle of the size range. These sizes were used more often and should provide adequate gear clearance under most circumstances. When in doubt; use a gear from the middle to the small side of the range; because a combination of looser fitting smaller gears will give a harmless clicking sound but to tight can cause a wining sound; binding and premature wear. Consult the factory service manual for information on optimum cam gear to pinion gear fit instructions before you order.
Fitment
- L77-84 Shovelhead
- 84-89 Evo Big Twin
- Conversion kit for 90-99 Evo Big Twin when using custom pre-1990 multiple parts flywheel assemblies (NU)
Product Details
- Brand: S&S
- Category: Motor parts > Pinion conversion kits
- Unit: KIT
- Product code: 531306
Part Numbers
MCS Part Number: 531306
Manufacturer Part Number: 33-4180
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