COMETIC SKU: 68-9531

Cometic Big Twin Seal 5-Pack - Harley Panhead, Shovelhead & Evo

$15.78
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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.

Upgrade the sealing integrity of your Harley-Davidson Panhead, Shovelhead, or Evo Big Twin with this Cometic seal 5-pack. Engineered to meet modern performance demands, these OEM-equivalent seals ensure reliable compression and oil containment across a range of classic and modern Harley Big Twin platforms.

Why riders pick this

  • OEM-equivalent design for precise fit
  • Fits Panhead, Shovelhead, and Evo Big Twin engines
  • 5-pack quantity for convenience
  • Ensures reliable compression and oil containment

When you're building or maintaining a Panhead, Shovelhead, or Evo Big Twin, the quality of your seals is paramount. This 5-pack from Cometic provides precision-engineered seals that are direct OEM replacements. They are designed to stand up to the rigors of V-twin engines, preventing leaks and ensuring your motor runs as it should.

Engineered for Dependable Performance

  • OEM-equivalent design for a precise fit and function
  • Fits Panhead, Shovelhead, and Evo Big Twin engines
  • Convenient 5-pack for multiple services or future use
  • Delivers reliable compression and oil containment

Ready for Your Next Engine Project

Whether it's a routine service or a complete engine overhaul, these Cometic seals are an essential component. Their robust construction ensures long-lasting performance, giving you confidence in your build. Keep your V-twin running strong and leak-free with these high-quality replacement seals.

Specifications

  • Brand: Cometic
  • Manufacturer Part #: C9531
  • UPC: 191070060558
  • Quantity: 5 per pack
  • Length: 3.2 in
  • Width: 4.45 in
  • Height: 0.3 in
  • Weight: 0.01 lbs

Common questions

Will this seal fit my Panhead or Shovelhead?

Yes, this Cometic seal is engineered as an OEM-equivalent replacement for both Panhead and Shovelhead engines.

How many seals are included in the pack?

There are five seals per pack, which is ideal for shops or riders who are rebuilding multiple engines or want spares.

Is this a direct OEM replacement?

Yes, Cometic manufactures this seal to OEM specifications, making it an equivalent replacement for Panhead, Shovelhead, and Evo Big Twins.

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
SKU68-9531
WEIGHT0.01 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