Cometic Twin Cam EST Gasket Kit - Cooled 103" .040" H/G 3.875" KIT — Harley-Davidson (1999-2017)

Cometic Twin Cam EST gasket kit for 103" cooled engines with .040" head gasket and 3.875" bore. Complete overhaul kit includes MLS head gaskets, steel Viton-coated base gaskets, blue Viton valve stem seals, and AFM material components.

Features

• MLS head gaskets
• Steel Viton-coated base gaskets
• Blue Viton valve stem seals
• AFM material components
• Complete kit with all gaskets, seals, washers, and o-rings

Specifications

• Brand: Cometic
• Manufacturer Part #: C10170
• Engine: Twin Cam EST 103" cooled
• Head Gasket Thickness: .040"
• Bore: 3.875"
• Length: 9 in
• Width: 7.6 in
• Height: 2.1 in
• Weight: 0.915 lbs

Fitment

Fits V-twin motorcycles with Twin Cam EST 103" cooled engines.

Frequently Asked Questions

What's included in this gasket kit?

All gaskets, seals, washers, and o-rings needed for a complete engine overhaul — head gaskets, base gaskets, valve stem seals, and AFM components.

Will this fit my Twin Cam engine?

This kit is for Twin Cam EST 103" cooled engines with 3.875" bore. Verify your engine displacement and cooling type before ordering.

What materials are used in the head gasket?

MLS (multi-layer steel) construction for durability and reliability on high-performance V-twin engines.

Do I need to buy additional gaskets separately?

No — this is a complete kit. All gaskets, seals, washers, and o-rings for a full overhaul are included.