Cometic M8 Molded Rubber Primary Housing Gasket - C10306F1 - Harley Milwaukee-Eight

$30.95
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Specifications

BRANDCometic
TYPEGaskets/Seals
SKU68-10306F1
PART NUMBERC10306F1
CATEGORYGaskets/Seals
MATERIALMolded rubber
TYPEPrimary housing gasket
WEIGHT1.0 lb

Fitment

Fits these motorcycles

Listed per manufacturer fitment data. Not sure? Email us and we confirm before you order.

REVIEWS (15)

This Cometic molded rubber primary housing gasket is a direct replacement for the OEM primary housing gasket. Replacing the primary housing gasket is part of primary service and clutch work, and a proper seal helps keep the primary drive clean and oil where it belongs.

Molded rubber construction is the key feature here. Compared with traditional paper gaskets, molded rubber offers enhanced durability and a more robust seal, which helps prevent common primary oil leaks. Keeping the primary sealed is essential for protecting the integrity of the primary drive over time.

This gasket is designed specifically for engines and suits routine maintenance, clutch upgrades, and addressing an existing leak. It weighs 1 lb and carries Cometic part number C10306F1, making it an easy part to identify when ordering or reordering.

Specifications

  • Brand: Cometic
  • Part Number: C10306F1
  • Category: Gaskets/Seals
  • Material: Molded rubber
  • Type: Primary housing gasket
  • Weight: 1 lbs

Common questions

What material is this primary housing gasket made from?

It is made from molded rubber, which provides enhanced durability and sealing compared with traditional paper gaskets.

Is this a direct replacement gasket?

Yes, it is a direct replacement for the OEM primary housing gasket.

What is the part number for this gasket?

The Cometic part number is C10306F1.

CUSTOMER REVIEWS
4.9
15 CUSTOMER REVIEWS
Jan 16, 2020

Almost identical to OEM. Good fit. I did miss that they are sold as each and not as a pair. Small detail and my fault but it did slow my project down a bit.

— Anonymous
Oct 18, 2021

Great seals and gaskets do the job once when you use quality gaskets

— Anonymous
Sep 26, 2019

Seal good and I haven't had any issues..

— Anonymous
Jun 27, 2025

It worked like it was suppose to, delivery was quick. <br />Pleased.

— Lloyd S
Dec 19, 2023

Just what I needed

Needed these when changing out intake manifold. They worked perfect for my ‘03 sporty.

— Carlos L
Jun 12, 2023

Cometic from here on out

These seals are the only ones I'll use. others came close but, for me, these are best.

— Vincent S