COMETIC SKU: 68-9848F

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

$353.56
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NOT SURE ABOUT FITMENT?

Cometic Evo Big Twin EST gasket kit includes all gaskets, seals, washers, and o-rings needed for a complete engine overhaul. This kit features MLS head gaskets, steel Viton-coated base gaskets, blue Viton valve stem seals, and AFM material for reliable sealing on high-performance V-Twin engines.

Features

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

Specifications

  • Brand: Cometic
  • Manufacturer Part #: C9848F
  • Length: 13.14 in
  • Width: 22.67 in
  • Height: 1.88 in
  • Weight: 0.2 lbs

Fitment

Fits Evo Big Twin EST engines used in Harley-Davidson and Indian Motorcycle V-Twin models.

Frequently Asked Questions

What's included in this gasket kit?

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

Will this work on my Evo Big Twin?

Yes — this kit is designed specifically for Evo Big Twin EST engines in Harley-Davidson and Indian Motorcycle models.

Why use MLS and Viton seals?

MLS head gaskets handle higher boost and compression. Viton seals resist heat and fuel better than standard rubber, critical for performance engines.

Do I need any other gaskets or seals for a full engine rebuild?

This complete kit includes all gaskets and seals for a top-end or full overhaul — nothing else needed.

BRANDCometic
TYPEGaskets/Seals
SKU68-9848F
WEIGHT0.2 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