COMETIC SKU: 68-911430

Cometic Twin Cam EST Gasket Kit — Harley-Davidson Softail Heritage Classic, Softail Fat Boy, Road King (1999-2017)

$152.70
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Cometic Twin Cam EST gasket kit for Harley-Davidson V-twin engines, containing all gaskets, seals, washers, and o-rings needed for a complete engine overhaul. Includes MLS head gaskets, steel Viton-coated base gaskets, blue Viton valve stem seals, and AFM material components.

Features

  • Complete gasket kit — all components for engine overhaul
  • MLS head gaskets
  • Steel Viton-coated base gaskets
  • Blue Viton valve stem seals
  • AFM material components

Specifications

  • Brand: Cometic
  • Manufacturer Part #: C9114-030
  • Weight: 1.3754 lbs

Fitment

Fits Harley-Davidson models with Twin Cam EST engines.

Frequently Asked Questions

What's included in this gasket kit?

All gaskets, seals, washers, and o-rings needed for a complete engine overhaul — head gaskets, base gaskets, valve stem seals, and related components.

Do I need to buy any additional gaskets separately?

This is a complete kit designed for a full engine rebuild. Check your service manual to confirm no supplemental seals are required for your specific model.

Are these OEM Harley-Davidson gaskets?

No — Cometic manufactures these as aftermarket replacements engineered to OEM specifications using modern materials like MLS and Viton.

Will these work on my Twin Cam engine?

Yes — this kit is designed for Harley-Davidson Twin Cam EST engines. Verify your engine type before ordering if unsure.

BRANDCometic
TYPEGaskets/Seals
SKU68-911430
WEIGHT1.38 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