COMETIC SKU: 68-10181-HB-030-014

Cometic Milwaukee-Eight EST Gasket Kit 4.250" Bore .030" MLS Head Gaskets - Harley Milwaukee-Eight

$246.000,00
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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 you're tearing down a Milwaukee-Eight for performance work or a refresh, a complete, reliable gasket kit is non-negotiable. This Cometic EST gasket kit provides everything needed for a full engine overhaul, ensuring a tight seal for every critical surface.

Why riders pick this

  • Complete engine overhaul kit for Milwaukee-Eight V-twins
  • MLS head gaskets for enhanced sealing and durability
  • Steel Viton-coated base gaskets resist high temperatures
  • Includes blue Viton valve stem seals for oil control
  • AFM material gaskets for robust, leak-free performance
  • Made in the USA for trusted quality

Designed and manufactured in the USA, this Cometic EST gasket kit is built to handle the demands of upgraded Milwaukee-Eight engines. It includes multi-layer steel (MLS) head gaskets, Viton-coated base gaskets, and AFM material, all engineered for precise fitment and lasting durability.

Precision Sealing for Performance Builds

  • Complete kit with all gaskets, seals, washers, and O-rings for a full overhaul
  • MLS (Multi-Layer Steel) head gaskets for superior sealing under high cylinder pressures
  • Steel Viton-coated base gaskets resist heat and chemical degradation
  • Blue Viton valve stem seals maintain consistent valve guide oil control
  • AFM (Advanced Fiber Material) gaskets provide robust sealing for other critical interfaces

Rebuild with Confidence

Whether you're doing a routine top-end refresh or building a high-horsepower M8 monster, this Cometic gasket kit provides the peace of mind that comes from using quality components. Each gasket and seal is crafted to meet the stringent demands of V-twin performance, helping you achieve optimal engine efficiency and longevity. Always confirm bore size and head gasket thickness for your specific build before ordering.

Specifications

  • Brand: Cometic
  • Manufacturer Part #: C10181-HB-030-014
  • Bore Size: 4.250 in
  • Head Gasket Thickness: .030 in MLS
  • Base Gasket Thickness: .014 in
  • Package Dimensions: 8 in L × 8.5 in W × 0.25 in H
  • Weight: 0.5 lbs
  • Country of Origin: United States of America

Common questions

What engine models does this gasket kit fit?

This Cometic EST Gasket Kit is designed for Milwaukee-Eight (M8) engines with a 4.250" bore. Please verify your engine's specifications before ordering.

Is this a complete kit for an engine overhaul?

Yes, this kit includes all the necessary gaskets, seals, washers, and O-rings for a comprehensive engine overhaul, from top to bottom.

Are the head gaskets in this kit Multi-Layer Steel (MLS)?

Yes, this kit features MLS (Multi-Layer Steel) head gaskets, known for their superior sealing capabilities in performance applications.

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
SKU68-10181-HB-030-014
WEIGHT0.5 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
5
19 RATINGS
5★ 19
4★ 0
3★ 0
2★ 0
1★ 0
✓ VERIFIED
Jul 11, 2021

The product was good the shipping sucks. No reason it should take so long to get a small light weight package.

— Anonymous
✓ VERIFIED
Dec 22, 2024

US made seals.

Quality product.<br /><br />Bla, bla, bla, bla, bla, bla, bla, bla, bla, bla

— Dennis G
✓ VERIFIED
Aug 29, 2023

Intake manifold leaks

Great seals worked good on my 1992 Harley Davidson Flhtcu nice a tight no more leaks !! <br />Highly recommended !!

— Paul P
✓ VERIFIED
May 15, 2023

Time for new seals

Got change these out every now and then. Got a rebuild kit for the Mukuni. Might as well change the intake manifold seal while I am doing the rebuild.

— Roxanne D
✓ VERIFIED
Dec 10, 2022

Great product great quality at a great price you can't beat that.

— Anonymous
✓ VERIFIED
Nov 22, 2022

Excellent job

— Anonymous