✓ VERIFIED
Mar 8, 2021
Better gaskets than oem never had a leak on any bike I've put them on!
JAMES GASKETS
SKU: 681-4309
James Gaskets Twin Cam Main Drive Gear End Gasket - Harley Dyna 6-Speed
$29.95
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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.
Maintain the integrity of your Dyna's 6-speed Twin Cam transmission with this main drive gear end gasket from James Gaskets. Engineered for a precise fit, it provides a reliable seal to prevent leaks and ensure optimal performance.
Why riders pick this
- Seals the main drive gear end of Twin Cam transmissions
- Direct replacement for Dyna 6-speed applications
- State-of-the-art gasket materials
- Genuine James Gaskets OEM replacement
- Made in the U.S.A
When you're working on the business end of your Dyna's transmission, a quality gasket is non-negotiable. This James Gaskets main drive gear end gasket is designed as a direct replacement, crafted with state-of-the-art materials to maintain a tight seal. Trust James Gaskets to keep your Twin Cam transmission running clean and dry.
Precision Sealing for Your Drivetrain
- Specifically designed for the main drive gear end of Twin Cam transmissions
- Manufactured with state-of-the-art gasket materials and production methods
- Genuine James Gaskets quality ensures a reliable seal
- Made in the U.S.A. for consistent performance
Essential for Transmission Service
Servicing your main drive gear requires attention to detail, and a fresh gasket is paramount. This James Gaskets component is built to OEM specifications, ensuring a straightforward replacement process. Always clean the mating surfaces thoroughly and follow your service manual's torque specs for a perfect, leak-free installation, especially on high-performance Dyna builds.
Specifications
- Brand: James Gaskets
- Manufacturer Part #: 12077
- Length: 2.25 in
- Width: 4 in
- Height: 0.9 in
- Weight: 0.08 lbs
Common questions
Is this the correct gasket for my Dyna 6-speed transmission?
Yes, this is the main drive gear end gasket specifically for Dyna 6-speed Twin Cam transmissions. Always verify your transmission type before ordering.
Is this an OEM replacement?
Yes, James Gaskets manufactures this to OEM specifications as a direct replacement gasket for your Twin Cam.
Do I need any sealant with this gasket?
Consult your service manual for your specific model. Some applications may recommend a thin bead of sealant, while others rely solely on the gasket.
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 | 681-4309 |
| WEIGHT | 0.08 lb |
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
4.86
28 RATINGS
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✓ VERIFIED
Oct 9, 2023
No surprise
Perfect. Exactly what i expected.
✓ VERIFIED
Jan 18, 2023
Very good kit everything you need for topend build
✓ VERIFIED
Oct 18, 2022
Perfect fit
✓ VERIFIED
Mar 5, 2022
looks like all the gaskets i need to rebuild my top end are in the kit right now im tearing down and prepping
✓ VERIFIED
Feb 1, 2022
First time doing top end rebuild. Pleased with the quality- everything was there so hopefully they do what they are supposed to. Pleased with the purchase.
