COMETIC SKU: 68-10084-030

Cometic Multi-Layer Steel Head Gasket .030" - Twin Cooled Harley & Indian V-Twin

$59.50
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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.

Keep your V-twin sealed tight with a Cometic Multi-Layer Steel (MLS) head gasket. This .030" thick gasket is specifically engineered for Twin Cooled engine applications, ensuring a reliable seal under the demanding conditions of a performance V-twin.

Why riders pick this

  • Multi-Layer Steel (MLS) construction for extreme durability
  • Specifically designed for Twin Cooled V-twin engines
  • 0.030" thickness for optimal compression
  • Resists blow-out under high combustion pressures
  • Supplied in a convenient 2-pack for V-twin engines

When you're building or servicing a high-performance V-twin, the head gasket is critical for containing combustion pressures and maintaining engine integrity. Cometic MLS gaskets are trusted by builders for their robust construction and consistent sealing capabilities.

Engineered for Twin Cooled Applications

  • Multi-layer steel (MLS) construction for superior sealing and durability
  • Designed specifically for Twin Cooled V-twin engines
  • 0.030" compressed thickness provides precise clearance
  • Sold in a 2-pack to service both cylinders of your V-twin

Reliable Sealing for Performance Builds

Whether you're doing a top-end refresh or pushing the limits with increased compression, a quality head gasket is non-negotiable. These Cometic MLS gaskets are engineered to resist blow-out and provide a consistent seal across repeated heat cycles, making them ideal for performance Harley-Davidson and Indian Motorcycle engines. Always confirm your engine's bore size and cooling system before ordering to ensure a perfect fit.

Specifications

  • Brand: Cometic
  • Manufacturer Part #: C10084-030
  • UPC: 191070031053
  • Quantity: 2 per pack
  • Bore Size: 4.000 in
  • Thickness: 0.030 in MLS
  • Length: 7 in
  • Width: 6 in
  • Weight: 0.1 lbs

Common questions

Do these gaskets require any special sealant during installation?

Cometic MLS gaskets are designed to be installed dry. Always follow the torque specifications and procedures outlined in your engine's service manual.

How many gaskets are included in this pack?

This product includes two head gaskets, which is the correct quantity for one complete V-twin engine.

Will this gasket fit my specific Harley-Davidson or Indian Motorcycle engine?

This gasket is designed for Twin Cooled V-twin engines. Please confirm your engine's cooling system and bore size using our Shop by Bike tool before ordering to ensure correct fitment.

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
SKU68-10084-030
WEIGHT0.1 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