COMETIC SKU: 68-9161

Cometic Twin Cam EST Gasket Kit - Harley Dyna Twin Cam

$645.000,00
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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.

The Cometic Twin Cam EST Gasket Kit provides a complete sealing solution for a full engine overhaul on Harley-Davidson Twin Cam models. This comprehensive kit includes MLS head gaskets, steel Viton-coated base gaskets, blue Viton valve stem seals, and all necessary AFM material components. It's engineered to restore your engine's integrity and performance.

Why riders pick this

  • Complete engine overhaul kit for Twin Cam EST
  • Includes MLS head gaskets and Viton-coated base gaskets
  • All gaskets, seals, washers, and O-rings provided
  • Blue Viton valve stem seals for optimal oil control
  • Ensures a leak-free and reliable engine rebuild

When rebuilding a Twin Cam engine, every gasket and seal matters. The Cometic Twin Cam EST Gasket Kit is meticulously assembled to supply every single component required for a complete engine overhaul on specific Harley-Davidson Twin Cam models. This means no more hunting for individual parts; you get a unified solution designed for optimal sealing. The kit incorporates advanced sealing technologies like MLS (Multi-Layer Steel) head gaskets for superior combustion chamber sealing and Viton-coated base gaskets for robust cylinder sealing, ensuring your rebuilt engine performs reliably.

All-Inclusive Engine Sealing

  • Complete kit with every gasket, seal, washer, and O-ring for an overhaul
  • Features high-performance MLS head gaskets
  • Includes durable steel Viton-coated base gaskets
  • Comes with blue Viton valve stem seals for precise oil control
  • Utilizes premium AFM material components throughout

Dependable Performance Post-Rebuild

A successful engine overhaul hinges on the quality of its sealing components. The Cometic Twin Cam EST Gasket Kit delivers that quality, providing peace of mind that your Harley Dyna's engine will be sealed tight and ready for the road. From the top end to the bottom, this kit ensures every critical junction is protected against leaks, contributing to sustained performance and reliability. Invest in Cometic for a rebuild that stands the test of time and the miles.

Specifications

  • Brand: Cometic
  • Manufacturer Part #: C9161
  • Length: 22.8 in
  • Width: 13.1 in
  • Height: 1.9 in
  • Weight: 0.05 lbs

Common questions

What exactly is included in this Cometic Twin Cam EST gasket kit?

This kit is a complete engine overhaul package, providing every gasket, seal, washer, and O-ring needed, including MLS head gaskets, steel Viton-coated base gaskets, and blue Viton valve stem seals.

Will this kit fit my specific Twin Cam year and model?

This kit is specifically for Twin Cam EST models. It's crucial to verify your engine variant matches this designation before ordering, as other Twin Cam generations may require different part numbers for proper fitment.

Do I need to purchase any additional seals or gaskets beyond this kit for a complete overhaul?

No, this Cometic kit is designed as a complete engine overhaul solution, meaning it includes all the gaskets and seals necessary for a comprehensive rebuild.

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
SKU68-9161
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