The product was good the shipping sucks. No reason it should take so long to get a small light weight package.
Cometic Milwaukee-Eight EST Gasket Kit 4.250" Bore .030" MLS Head Gaskets - Harley Milwaukee-Eight
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.
| BRAND | Cometic |
| TYPE | Gaskets/Seals |
| SKU | 68-10181-HB-030-014 |
| WEIGHT | 0.5 lb |
US made seals.
Quality product.<br /><br />Bla, bla, bla, bla, bla, bla, bla, bla, bla, bla
Intake manifold leaks
Great seals worked good on my 1992 Harley Davidson Flhtcu nice a tight no more leaks !! <br />Highly recommended !!
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.
Great product great quality at a great price you can't beat that.
Excellent job