Product Description
S&S 77-99 Pinion Shaft Gear / Conversion Kit
Stock replacement for all L77-89 Big Twin models. Used as conversion kit on 90-99 Evo Big Twin with pre-90 pinion shaft.
For 1989 and earlier type pinion shafts used on 90-99 Evo Big Twin models (engines that use S&S flywheels or other flywheel assemblies where a conversion is required) S&S offers this conversion package.
Kits include:
- Color coded 77-89 pinion gear
- 54-89 oil pump drive gear
- 54-89 pinion shaft gear spacer
- 54-89 pinion shaft gear nut
Note: All kits must be used with a 73-99 Big Twin style oil pump gear (S&S A209-433614 / OEM 26345-73).
Note Sizing:
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.
Variant: L77-84 Shovelhead - Black (smallest)
SKU: A306-433711
MPN: 33-4180
DPN: 531306
Variant: L77-84 Shovelhead - Blue (average smaller)
SKU: A308-433713
MPN: 33-4181
DPN: 531308
Variant: L77-84 Shovelhead - Red (average bigger)
SKU: A148-806553
MPN: 33-4148
DPN: 904148
Variant: L77-84 Shovelhead - Yellow (biggest)
SKU: A309-433714
MPN: 33-4185
DPN: 531309
Variant: 84-89 Evolution Big Twin - Black (smallest)
SKU: A306-433711
MPN: 33-4180
DPN: 531306
Variant: 84-89 Evolution Big Twin - Blue (average smaller)
SKU: A308-433713
MPN: 33-4181
DPN: 531308
Variant: 84-89 Evolution Big Twin - Red (average bigger)
SKU: A148-806553
MPN: 33-4148
DPN: 904148
Variant: 84-89 Evolution Big Twin - Yellow (biggest)
SKU: A309-433714
MPN: 33-4185
DPN: 531309
Variant: 90-99 Evolution Big Twin (conversion kit for pre-90 pinion shaft) - Black (smallest)
SKU: A306-433711
MPN: 33-4180
DPN: 531306
Variant: 90-99 Evolution Big Twin (conversion kit for pre-90 pinion shaft) - Blue (average smaller)
SKU: A308-433713
MPN: 33-4181
DPN: 531308
Variant: 90-99 Evolution Big Twin (conversion kit for pre-90 pinion shaft) - Red (average bigger)
SKU: A148-806553
MPN: 33-4148
DPN: 904148
Variant: 90-99 Evolution Big Twin (conversion kit for pre-90 pinion shaft) - Yellow (biggest)
SKU: A309-433714
MPN: 33-4185
DPN: 531309
Shipping and Delivery Times
All orders are shipped from our warehouse in Falkenberg, Sweden. We work hard to get them moving quickly!
Stock status explained:
- In stock: Ready to ship to you within the time listed. Packages usually arrive 2–4 business days after dispatch depending on your location.
- Sold Out: Currently out of stock at Customhoj, but we expect to have it back soon! Please feel free to contact us for information on when the product will be available again.
If a product has multiple variants (like sizes or colors), the stock status updates automatically as you select your option.
Our goal is simple, to get your order to you as fast as possible!
30-Day Hassle-Free Returns - No Questions Asked
If you are not entirely satisfied with your order, whether you need to change sizes or something else, we offer a full 30-day return policy from the day you receive your order. Return shipping costs apply.
Please note that the right to return does not apply to products that are personalized, or manufactured upon order. See our return policy for complete details and conditions.
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