COMETIC SKU: 68-9942F1

Cometic Panhead/Shovelhead/Evo Big Twin Primary Gasket - Spacer Gasket BIG Twin… — Harley-Davidson (1955-1999)

$2.94
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NOT SURE ABOUT FITMENT?

Cometic primary gasket for Panhead, Shovelhead, and Evolution big twin engines. Engineered to seal the primary cover without leaks under high RPM and pressure cycles common in V-twin performance builds.

Features

  • For Panhead, Shovelhead, and Evo big twin engines
  • OEM-quality gasket material
  • Direct-fit replacement

Specifications

  • Brand: Cometic
  • Manufacturer Part #: C9942F1
  • Weight: 4.45 lbs

Fitment

Fits Harley-Davidson and Indian Motorcycle big twin models with Panhead, Shovelhead, or Evolution engines that use a primary cover gasket.

Frequently Asked Questions

Will this fit my Sportster?

No — this gasket is for big twin engines only. Sportster models use a different primary gasket.

What's the difference between this and the factory gasket?

Cometic gaskets are engineered for consistent sealing across temperature and pressure cycles, reducing weeping common with aged OEM gaskets.

Do I need to replace the gasket every time I open the primary?

Not always — if the gasket is undamaged and seals properly when reinstalled, it may be reusable. Inspect for tears or permanent compression before deciding.

BRANDCometic
TYPEGaskets/Seals
SKU68-9942F1
WEIGHT4.45 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