COMETIC SKU: 68-9942F5

Cometic Primary Spacer Gasket - Harley-Davidson Panhead, Shovelhead, Evolution Big Twin

$12.92
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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 primary spacer gasket is engineered for Harley-Davidson Panhead, Shovelhead, and Evolution Big Twin engines, providing a critical seal for your primary case. This direct replacement gasket helps prevent oil weeping and leakage, ensuring a cleaner, more reliable ride.

Why riders pick this

  • Seals primary case on Panhead, Shovelhead, Evolution Big Twin
  • OEM-equivalent design for precise fit and reliable sealing
  • Low-profile spacer construction
  • Direct replacement for factory gaskets
  • Prevents primary oil weeping and leaks

Maintaining a leak-free primary is essential for the performance and aesthetics of your V-twin. This Cometic gasket is designed with OEM-equivalent specifications to fit perfectly and provide a durable seal against the elements and internal pressures. It's a key component for any rider performing routine maintenance or building a custom V-twin.

Robust Sealing for Your Big Twin Primary

  • Specifically designed for Panhead, Shovelhead, and Evolution Big Twin engines
  • OEM-equivalent gasket design ensures precise fitment
  • Low-profile spacer construction for a secure seal
  • Helps prevent primary oil leaks and weeping

Secure Your Primary Case

Whether you're working on a classic Panhead or a later Evolution Big Twin, a reliable primary gasket is non-negotiable. This Cometic gasket stands up to the demands of V-twin engines, protecting your internal components from contamination and keeping your bike looking clean. It’s a smart choice for ensuring the integrity of your primary drive on Harley-Davidson Touring, Softail, or Dyna models.

Specifications

  • Brand: Cometic
  • Manufacturer Part #: C9942F5
  • Weight: 0.01 lbs

Common questions

What engine platforms does this Cometic primary gasket fit?

This gasket is designed for Harley-Davidson and Indian Motorcycle V-twin engines including Panhead, Shovelhead, and Evolution Big Twin platforms.

Is this a direct replacement for the original primary gasket?

Yes, this Cometic gasket is engineered as a direct OEM-equivalent replacement for the factory primary case gasket on compatible models.

Do I need to use special sealant with this gasket?

It depends on your engine manufacturer's assembly instructions. Many primary gaskets can be installed dry, but some applications may benefit from a light bead of gasket maker. Always consult your service manual.

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
SKU68-9942F5
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