COMETIC SKU: 68-9528

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

$44.000,00
Free shipping on orders $99+ · Best value guarantee
From $3.666,66/mo with Affirm. See if you prequalify
OUT OF STOCK
Free Shipping on orders $99+
Best Value Guarantee
30-Day Returnssee policy
Authorized Dealer — sourced direct
NOT SURE ABOUT FITMENT?

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.

Secure critical sealing surfaces on your classic Harley-Davidson Panhead, Shovelhead, or Evo Big Twin with this Cometic seal 5-pack. These OEM-replacement seals are engineered to meet modern compression and performance standards, providing a reliable barrier against leaks.

Why riders pick this

  • OEM-replacement for Panhead, Shovelhead, and Evo Big Twins
  • Engineered to modern performance standards
  • Convenient 5-pack for multiple services or spares
  • Ensures reliable compression and oil containment

Maintaining the integrity of your vintage or Evo Big Twin engine requires quality components, and these Cometic seals deliver. Designed as a direct replacement, they ensure a tight seal where it matters most, preventing leaks and maintaining optimal engine performance. The convenient 5-pack means you'll have spares on hand for future work or for servicing multiple bikes.

Reliable Sealing for Classic V-Twins

  • Direct OEM replacement for Panhead, Shovelhead, and Evo Big Twin engines
  • Engineered to modern compression and performance standards
  • Five-pack quantity ideal for shops or multiple engine builds
  • Constructed for lasting durability and leak prevention

Essential for Rebuilds and Maintenance

Whether you're doing a top-end refresh or a full engine rebuild, having the right seals is crucial. These Cometic seals provide the peace of mind that comes from using high-quality components. They are a smart choice for ensuring your Panhead, Shovelhead, or Evo Big Twin continues to run strong, offering dependable performance for miles to come.

Specifications

  • Brand: Cometic
  • Manufacturer Part #: C9528
  • Quantity: 5 per pack
  • Length: 6.05 in
  • Width: 7 in
  • Height: 0.35 in
  • Weight: 0.02 lbs

Common questions

What engines does this seal fit?

This seal is designed to fit Harley-Davidson Panhead, Shovelhead, and Evo Big Twin platforms. Always confirm your specific engine type before ordering.

Why is this seal sold in a 5-pack?

The five-pack quantity is ideal for professional shops, multi-bike builds, or riders who want to keep spare seals on hand for future engine maintenance or rebuilds.

Is this an OEM-equivalent seal?

Yes, Cometic manufactures this seal to OEM specifications, making it a direct replacement for the original part.

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
SKU68-9528
WEIGHT0.02 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