COMETIC SKU: 68-10039

Cometic Twin Cam Rocker Box Assembly Gasket 10-Pack - Harley Twin Cam

$19.97
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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.

Ensure a leak-free top end on your Twin Cam engine with the Cometic Rocker Box Assembly Gasket 10-Pack. These gaskets are manufactured to OEM specifications, providing a reliable seal for your rocker box. Ideal for workshops or riders who prefer to have spares on hand, this pack offers excellent value and consistent quality.

Why riders pick this

  • 10-pack quantity for convenience
  • OEM-equivalent gasket design
  • Specifically for Twin Cam rocker box assembly
  • Ensures reliable, leak-free sealing
  • Durable materials for long service life

The Cometic rocker box assembly gasket 10-pack is a crucial component for maintaining the integrity of your Twin Cam V-twin engine. Each gasket is an OEM-equivalent replacement, designed to provide a perfect seal for the rocker box assembly. This bulk pack is particularly useful for shops that frequently service Twin Cam models or for individual riders who perform their own maintenance and want a ready supply of quality replacement parts for their Harley-Davidson or Indian Motorcycle.

Precision Sealing for Your Top End

  • Convenient 10-pack quantity for shops and multi-bike owners
  • OEM-equivalent design ensures precise fitment and reliable sealing
  • Specifically engineered for Twin Cam rocker box assemblies
  • Helps prevent oil leaks and maintain engine cleanliness
  • Manufactured from durable materials for long-lasting performance

Maintain Your Twin Cam with Confidence

Replacing rocker box gaskets is a common maintenance task, and having these Cometic gaskets on hand ensures you're always prepared. They are engineered to the same exacting standards as the original equipment, guaranteeing a secure seal and optimal engine performance. Trust Cometic for the dependable parts your Twin Cam needs to run smoothly, ride after ride.

Specifications

  • Brand: Cometic
  • Manufacturer Part #: C10039
  • OEM Part #: 26500002
  • Quantity: 10 per pack
  • Weight: 0.09 lbs

Common questions

Is this an OEM gasket or an aftermarket replacement?

This is a high-quality aftermarket gasket manufactured by Cometic to OEM specifications, serving as a direct replacement for Harley OEM part #26500002.

Why is this rocker box gasket sold in a 10-pack?

The 10-pack quantity is designed to cater to professional shops, owners of multiple bikes, or riders who prefer to keep spares on hand for routine maintenance or future repairs.

Will this gasket fit all Twin Cam engines, regardless of year?

This rocker box gasket is designed for standard Twin Cam assemblies. To confirm compatibility, please verify your specific year and model using our Shop by Bike tool before placing your order.

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
SKU68-10039
WEIGHT0.09 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
4.71
7 RATINGS
5★ 6
4★ 0
3★ 1
2★ 0
1★ 0
✓ VERIFIED
Nov 13, 2023

Decent product

I’m not overly impressed with their rocker gaskets, installed them and they seeped oil, went with oem pieces on the rockers and the seep stopped, everything else worked as expected

— MIKE G
✓ VERIFIED
Jul 27, 2023

Awesome

It has already been installed and everything fantastic just like it should and would recommend it to anyone

— Jimmy G
✓ VERIFIED
Jan 23, 2023

I replaced the top end gaskets and seals due to the Lower O rings on the jugs were leaking . I went by the instructions to the T and torqued as specified . All went well and test drove the bike and it leaks even worse now . I think if you had a larger diameter O ring it would take care of this issue . This is a new 103 bore kit installed on the bike . The machined seat on the case would take a larger diameter O ring for sure . Am i the only one with this issue . The bike needs to be torn down again .

— Anonymous
✓ VERIFIED
Apr 4, 2022

Everything you need for your build. Quality is there as well.

— Anonymous
✓ VERIFIED
Oct 7, 2021

Good gaskets set with all complete items needed

— Anonymous
✓ VERIFIED
Jun 9, 2020

Always like cosmetic gaskets

— Anonymous