COMETIC SKU: 68-9748F

Cometic Evo Big Twin EST Gasket Kit OE# 17041-92-A - Harley Evolution Big Twin

$353.56
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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.

When it's time for a full engine overhaul on your Evo Big Twin, a complete gasket kit is essential. This Cometic Evo Big Twin EST Gasket Kit provides every seal, washer, and O-ring you need to button up your V-twin with confidence. Engineered for reliable performance, it's a critical component for any serious rebuild.

Why riders pick this

  • Complete kit for Evo Big Twin engine overhaul
  • MLS head gaskets for superior sealing
  • Steel Viton-coated base gaskets prevent leaks
  • Blue Viton valve stem seals for oil control
  • Includes every gasket, seal, washer, and O-ring

This Cometic Evo Big Twin EST Gasket Kit is designed for a complete engine overhaul on Harley-Davidson Evolution Big Twin engines. It includes all the necessary gaskets, seals, washers, and O-rings, ensuring you have everything on hand for a thorough rebuild. With advanced sealing materials, this kit helps maintain optimal engine compression and prevents leaks, keeping your V-twin running strong.

Engineered for Lasting Performance

  • Multi-Layer Steel (MLS) head gaskets provide superior sealing under high temperatures and pressures
  • Steel Viton-coated base gaskets offer enhanced durability and leak prevention
  • Blue Viton valve stem seals ensure consistent valve train operation and oil control
  • Advanced AFM material construction for reliable sealing across various engine surfaces
  • Comprehensive kit includes all gaskets, seals, washers, and O-rings for a complete overhaul

Rebuild Your Evo with Confidence

Whether you're refreshing a high-mileage Evo or performing a performance build, this Cometic gasket kit offers the quality and precision required. Its comprehensive nature means less time hunting for individual parts and more time wrenching. Pair this kit with other performance upgrades for a V-twin that delivers power and reliability on every ride.

Specifications

  • Brand: Cometic
  • Manufacturer Part #: C9748F
  • OEM Part #: 17041-92-A
  • Weight: 1.84 lbs

Common questions

What engine models does this gasket kit fit?

This Cometic Evo Big Twin EST Gasket Kit is designed for Harley-Davidson Evolution Big Twin engines, specifically those requiring OE# 17041-92-A.

Are head gaskets included in this kit?

Yes, this is a complete engine overhaul kit that includes Multi-Layer Steel (MLS) head gaskets, along with all other necessary seals and O-rings.

How do these gaskets compare to OEM parts?

Cometic gaskets utilize advanced materials like MLS and Viton, engineered to meet or exceed OEM specifications for durability and sealing performance on your V-twin.

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
SKU68-9748F
WEIGHT1.84 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
4.71
14 RATINGS
5★ 11
4★ 2
3★ 1
2★ 0
1★ 0
✓ VERIFIED
Apr 1, 2024

keeps them lookin shiny

keeps the oil on the right side

— Frank N
✓ VERIFIED
Dec 4, 2023

Easy to install. Good quality and price. Does what it is supposed to do

— Brendan S
✓ VERIFIED
Apr 9, 2019

Very good quality/value for the price, I would buy them again.

— Anonymous
✓ VERIFIED
May 1, 2016

Good gasket, I like these because they are the same thickness as factory, and do not change the end play on the cam and breather

— Anonymous
✓ VERIFIED
Apr 29, 2015

Decent gasket. Sticks out of the nosecone cover a bit at the top as it doesn't follow the nose cone shape precisely. Seals well.

— Anonymous
✓ VERIFIED
Jun 22, 2014

easy to replace just like oem

— Anonymous