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James Gaskets Sprocket Shaft Oil Seal - Harley Big Twin & Shovelhead
About James Gaskets
James Gaskets has supplied American V-twin gaskets, seals and O-rings for decades and is one of the most widely stocked names for Harley-Davidson engine, primary and transmission rebuilds. When a service manual calls for a specific gasket, James almost always has an exact-fit answer.
This James Gaskets oil seal is specifically designed to prevent oil leakage from the sprocket shaft on your Big Twin or Shovelhead engine. It's an OEM-specification replacement, built for reliable performance on your Harley-Davidson or Indian Motorcycle.
Why riders pick this
- Engineered to seal the sprocket shaft
- Direct OEM-specification replacement
- Fits Harley Big Twin and Shovelhead engines
- Prevents oil leaks from the primary drive
- Essential for engine maintenance
A leaking sprocket shaft isn't just a mess; it's a sign that your seals need attention. This James Gaskets oil seal provides a direct, high-quality replacement for the factory component, ensuring a tight seal where it matters most. Engineered for the specific demands of Big Twin and Shovelhead platforms, it helps maintain proper oil levels and keeps your primary drive clean.
Reliable Leak Prevention
- Engineered for sprocket shaft sealing
- Direct replacement for OEM oil seals
- Designed for Harley Big Twin and Shovelhead engines
- Helps prevent oil leaks from the primary side
Maintain Your Classic V-Twin
Keeping your classic Harley running strong means addressing potential leaks before they become major issues. This James Gaskets oil seal is a critical component for maintaining the integrity of your engine's lubrication system. Proper installation, following your service manual's guidelines, will ensure this seal performs its best, contributing to the longevity and cleanliness of your V-twin.
Specifications
- Brand: James Gaskets
- Manufacturer Part #: 12026-A
- Length: 3.65 in
- Width: 5.3 in
- Height: 1.15 in
- Weight: 0.226 lbs
Common questions
Will this seal stop my sprocket shaft oil leak?
This oil seal is designed to prevent leakage at the sprocket shaft. If you have an active leak from this area, proper installation of this replacement should resolve it.
Is this a genuine James Gaskets part?
Yes, this is a genuine James Gaskets product, known for manufacturing OEM-spec seals and gaskets for Harley-Davidson and Indian Motorcycle engines.
Do I need any special tools for installation?
Installation typically requires basic mechanical knowledge and tools. Consulting your service manual for the correct seal driver size and technique is recommended for proper installation.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | James Gaskets |
| TYPE | Gaskets/Seals |
| SKU | 681-4501 |
| WEIGHT | 0.23 lb |
Great product! Fast delivery!
Great design! No O ring to forget and good seal on base.
Great! No leaks.
I didn't think the base gaskets would be paper. Everything else was great
purfect