✓ VERIFIED
Oct 1, 2023
Excellent set
Excellent set for the price, easy to install, very durable products. I would recommend this set 10/10
JAMES GASKETS
SKU: 681-4421
James Gaskets Big Twin Screw Fork Drain Gasket Kit - 39mm Harley Dyna & FXR
$9.50
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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.
Keep your front end sealed tight with this James Gaskets Big Twin gasket kit, specifically for screw fork drain maintenance on Dyna and FXR models. This complete seal set is essential for fork oil service and ensures your drainage system is leak-free. It's designed to meet the demands of your Harley's performance.
Why riders pick this
- Complete seal kit for screw fork drains
- Specifically for 39mm fork tubes
- Prevents oil leaks during fork service
- Direct replacement for hassle-free installation
- Maintains optimal fork performance
When you're wrenching on your Harley Dyna or FXR, especially during fork oil service, having the right gaskets is critical. This James Gaskets Big Twin kit provides all the necessary seals for screw-type fork drains on models equipped with 39mm forks. It's engineered to provide a reliable, long-lasting seal, preventing leaks and maintaining optimal fork performance.
Precision Sealing for Your Front End
- Complete gasket set for screw fork drain systems
- Designed for 39mm fork tubes on Big Twin models
- Ensures leak-free fork oil service and maintenance
- Engineered for a precise fit and reliable performance
Maintain Your Ride's Integrity
Replacing worn or damaged fork drain gaskets is a small job that makes a big difference in preventing oil leaks and maintaining your motorcycle's front end. This kit is a direct replacement, simplifying the service process. It's a smart choice for riders looking to keep their Dyna or FXR performing as it should, whether you're doing routine maintenance or a full fork overhaul.
Specifications
- Brand: James Gaskets
- Manufacturer Part #: 45790-80-CS
- Length: 3.65 in
- Width: 4.2 in
- Height: 0.9 in
- Weight: 0.024 lbs
Common questions
Will this gasket kit fit my FXR with 39mm forks?
Yes, this kit is specifically designed for FXR and Dyna models running 39mm fork tubes with screw-drain forks. Confirm your fork diameter before ordering.
Is this kit compatible with 41mm or 43mm forks?
No, this gasket kit is precisely sized for 39mm forks only. It will not fit 41mm or 43mm fork applications.
What parts are included in this gasket kit?
This kit includes a complete gasket set for the screw fork drain system, providing all necessary seals for fork oil service and drainage system replacement.
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 | 681-4421 |
| WEIGHT | 0.02 lb |
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
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14 RATINGS
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✓ VERIFIED
Sep 11, 2023
Good quality
Breaking engine in right now and everything is holding tight. Very pleased
✓ VERIFIED
Aug 28, 2023
Gasket set
Great gasket set, includes everything you need to reseal top end.
✓ VERIFIED
Jul 31, 2021
Quality parts in a timely manner
✓ VERIFIED
Mar 29, 2021
Fit like it should, super quick shipping
✓ VERIFIED
Mar 21, 2021
Gasket set seems to be of good quality. Everything fit just like oem gaskets and seals but made better lol. So far so good, Everything is nice a dry now.
