COMETIC SKU: 68-9308F1

Cometic Primary Gasket Single Pack - Harley Panhead, Shovelhead & Evolution Big Twin

$139.000,00
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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.

This Cometic primary gasket is engineered for a precise seal on your Panhead, Shovelhead, or Evolution Big Twin engine. It's a direct replacement for your factory gasket, ensuring reliable performance. Perfect for a single service job on your classic Harley.

Why riders pick this

  • Direct OEM replacement primary gasket
  • Fits Panhead, Shovelhead, and Evolution Big Twin engines
  • Ensures a reliable, leak-free primary cover seal
  • Single gasket per pack for individual service
  • Withstands V-twin engine heat and vibration

When you're getting into the primary of your Harley-Davidson, a fresh gasket is essential for a leak-free seal. This Cometic primary gasket is designed to meet or exceed OEM specifications, providing confidence that your Panhead, Shovelhead, or Evolution Big Twin will be buttoned up correctly. It's a single gasket, perfect for one-time maintenance or repair.

Engineered for a Tight Seal

  • Direct OEM replacement gasket for straightforward installation
  • Designed for Panhead, Shovelhead, and Evolution Big Twin engines
  • Ensures a reliable, leak-free seal for your primary cover
  • Built to withstand the heat and vibration of your V-twin engine

Maintain Peak Performance

Preventing primary fluid leaks is crucial for the longevity of your motorcycle's drivetrain. This Cometic gasket provides the sealing integrity needed to keep your primary cavity clean and lubricated. Whether you're performing routine maintenance or a more involved repair, trust Cometic to deliver quality sealing solutions for your Harley V-twin. Always verify fitment for your specific model before purchasing.

Specifications

  • Brand: Cometic
  • Manufacturer Part #: C9308F1
  • UPC: 19107003097
  • Length: 23 in
  • Width: 12.6 in
  • Height: 0.2 in
  • Weight: 0.2 lbs

Common questions

What Harley-Davidson engines does this gasket fit?

This Cometic primary gasket is specifically designed for Panhead, Shovelhead, and Evolution (Evo) Big Twin engines found in Harley-Davidson models. It will not fit Sportster or Twin Cam engines.

Is this a single gasket or a multi-pack?

This product is a single primary gasket per pack, intended for sealing the primary cover on one motorcycle.

Do I need to use sealant with this gasket?

Always follow your engine's specific service manual for sealant recommendations. While many modern gaskets are designed to seal without additional sealant, some applications may benefit from it.

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
SKU68-9308F1
WEIGHT0.2 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