COMETIC SKU: 68-9983F

Cometic Evo Big Twin Transmission Gasket 10-Pack - Harley & Indian V-Twin

$98.000,00
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About Cometic

Cometic Gasket manufactures multi-layer steel head gaskets and complete gasket kits in Concord, Ohio. On a built V-twin running higher compression or a big-bore kit, the MLS head gasket is what keeps the top end sealed — which is why Cometic is the default spec on so many engine builds.

When servicing multiple bikes or stocking up for the future, a 10-pack of essential gaskets makes sense. This Cometic Evo Big Twin Transmission Gasket 10-Pack provides reliable seals for your V-twin transmission. These gaskets are built to OEM specifications to handle the demands of high-performance engines.

Why riders pick this

  • Convenient 10-pack for multiple services or spares
  • OEM-equivalent design for reliable performance
  • Direct replacement for V-twin transmissions
  • Engineered for both Evo Big Twin and Twin Cam applications

This Cometic Evo Big Twin transmission gasket is engineered for V-twin motorcycle transmissions, and it comes in a convenient 10-pack. This bulk quantity is ideal for shops or riders who perform frequent maintenance on multiple bikes and want to keep spares on hand. These gaskets are designed to meet OEM replacement specifications, ensuring a reliable seal that can withstand the demands of modern, high-performance engines.

Reliable Sealing for V-Twin Transmissions

  • Bulk 10-pack quantity for shops or multi-bike owners
  • Engineered to OEM-equivalent specifications for direct replacement
  • Designed for durability in V-twin motorcycle transmissions
  • Helps prevent leaks and maintain transmission integrity

Smart Stocking for the Garage

Having a supply of critical gaskets means you're always ready for service without waiting for parts. These Cometic transmission gaskets are a direct replacement for both Evo Big Twin and Twin Cam transmission housings, offering broad compatibility. They are built to ensure your transmission stays sealed, keeping your ride on the road and out of the shop longer. Always confirm fitment with your specific V-twin model before installation.

Specifications

  • Brand: Cometic
  • Manufacturer Part #: C9983F
  • UPC: 191070034849
  • Length: 7.05 in
  • Width: 6 in
  • Height: 0.6 in
  • Weight: 0.05 lbs

Common questions

Will these gaskets fit both Evo Big Twin and Twin Cam transmissions?

Yes, these Cometic transmission gaskets are designed to fit both Evo Big Twin and Twin Cam transmission housings, offering broad compatibility for Harley-Davidson models.

Why is this transmission gasket sold in a 10-pack?

The 10-pack is intended for shops, multi-bike owners, or riders who prefer to keep spare gaskets on hand for future maintenance and service needs.

Are these gaskets OEM Harley-Davidson parts?

Cometic manufactures these gaskets to OEM specifications as a direct replacement for V-twin transmissions, ensuring equivalent fit and performance.

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.
BRANDCometic
TYPEGaskets/Seals
SKU68-9983F
WEIGHT0.05 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
4.36
14 RATINGS
5★ 11
4★ 0
3★ 1
2★ 1
1★ 1
✓ VERIFIED
May 16, 2026

not what I needed. description wasn't very clear but not worth sending back. oh well just have to be more careful next time

— John L
✓ VERIFIED
Mar 8, 2026

Gasket

Working fine was for my brother's bike

— CHARLES S
✓ VERIFIED
Oct 25, 2024

Works Fine at a lower cost

I usually have an OEM from Harley Davidson, I have used this twice on my 04 Electraglide, no leaks or issues. At a much lower price.

— Danny D
✓ VERIFIED
Jun 8, 2024

A mediocre gasket

I didn’t use this gasket after removing the derby and seeing the Harley gasket that I removed. No comparison in quality. I ended up going to the local dealer and bought an O.E. gasket.

— JOHN P
✓ VERIFIED
Jun 6, 2023

A good buy

The gasket fit nicely and no leaks so far . The fitment was spot on .

— John H
✓ VERIFIED
May 4, 2023

There is nothing on them indicating they are actually Cometic gaskets. Are they Substitutes?

— CRAIG B