COMETIC SKU: 68-9164

Cometic Evo Big Twin EST Gasket Kit — Harley-Davidson Electra Glide Classic, Softail Custom, Softail Heritage Classic (1984-1999)

$1.199.000,00
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Cometic Evo Big Twin EST gasket kit supplies every gasket, seal, washer, and o-ring needed for a complete engine overhaul on Evo Big Twin V-twins. Includes MLS head gaskets, steel Viton-coated base gaskets, blue Viton valve stem seals, and AFM material for reliable sealing across all engine temperatures.

Features

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

Specifications

  • Brand: Cometic
  • Manufacturer Part #: C9164
  • Weight: 1.71 lbs
  • Engine Type: Evo Big Twin

Fitment

Fits Evo Big Twin V-twin engines, including Harley-Davidson and Indian Motorcycle models with Evo Big Twin platforms.

Frequently Asked Questions

What's included in this kit?

Every gasket, seal, washer, and o-ring needed for a complete engine overhaul — head gaskets, base gaskets, valve stem seals, and AFM material.

Will this fit my Milwaukee-Eight engine?

No — this kit is for Evo Big Twin engines only. Milwaukee-Eight engines require a different Cometic gasket kit.

Do I need any additional gaskets beyond this kit?

This is a complete overhaul kit. All major engine seals and gaskets are included.

Are these OEM quality?

Cometic gaskets use modern materials including MLS head gaskets and Viton seals engineered to match or exceed OEM performance.

BRANDCometic
TYPEGaskets/Seals
SKU68-9164
WEIGHT1.71 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