COMETIC SKU: 68-9576

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

$324.000,00
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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.

When it's time to service the top end of your Twin Cam V-twin, ensure a perfect seal with this Cometic rocker box assembly gasket 10-pack. These gaskets are engineered to OEM-replacement specifications, providing a dependable seal under the high heat and pressure of modern performance engines. This generous 10-pack is ideal for busy shops or riders with multiple bikes.

Why riders pick this

  • Seals Twin Cam rocker box assemblies
  • Direct OEM replacement specification
  • Engineered for high heat and pressure
  • Generous 10-pack for shops or spares

Rocker box leaks are a common nuisance on any V-twin, and preventing them starts with a quality gasket. This 10-pack of Cometic rocker box assembly gaskets provides the precision-engineered seals you need for your Twin Cam engine. Each gasket is built to withstand the demanding conditions within your top end, ensuring a tight, leak-free seal that keeps your engine performing at its best.

Engineered for Twin Cam Top End Reliability

  • Direct OEM-replacement specification for Twin Cam rocker box assemblies
  • Engineered to seal under high heat and pressure
  • Prevents oil leaks from the rocker box assembly
  • Convenient 10-pack for shops and frequent maintenance

Essential for Top End Service

Whether you're doing a routine valve adjustment or a full top-end rebuild, having a supply of reliable rocker box assembly gaskets is crucial. This Cometic 10-pack ensures you're always prepared, helping you maintain the integrity and cleanliness of your Twin Cam engine. Don't cut corners on critical sealing surfaces; trust Cometic for your Harley-Davidson or Indian Motorcycle.

Specifications

  • Brand: Cometic
  • Manufacturer Part #: C9576
  • Length: 8 in
  • Width: 8.45 in
  • Height: 0.45 in
  • Weight: 0.835 lbs
  • Quantity: 10 per pack

Common questions

Why are these gaskets sold in 10-packs?

The 10-pack quantity is intended for professional shops, riders with multiple bikes, or those who prefer to keep spares on hand for future service intervals.

Will this gasket fit my Twin Cam Harley-Davidson engine?

Yes, this is a direct OEM-replacement gasket designed for Twin Cam rocker box assemblies on Harley-Davidson V-twin engines.

Is this the same quality as the factory Harley gasket?

Cometic manufactures this gasket to OEM specifications, making it a direct replacement designed to perform comparably to the factory gasket.

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
SKU68-9576
WEIGHT0.84 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
4.77
35 RATINGS
5★ 31
4★ 2
3★ 1
2★ 0
1★ 1
✓ VERIFIED
Nov 8, 2022

Excellent gaskets

— Anonymous
✓ VERIFIED
Jan 13, 2025

JP is my personal go to for parts

Yes, they will fit. I’ve installed on 4 bikes. While down, install Rocker Lockers to eliminate rocker shaft tick. View videos on internet to confirm.

— Robert H
✓ VERIFIED
Sep 23, 2022

only thing that I can say about this product is that it would have been nice to have the gaskets marked with correct postioning. ie this side up or down or towards front or rear of bike. For the first time user this would have been useful. Did not use the air breather assembly gaskets and parts. Bought the new upgraded from HD (easier than trying to scrape off all the gaskets)

— Anonymous
✓ VERIFIED
Nov 23, 2020

All necc. Gaskets included even to rebuild breathers. Been using cometic for 30 yrs. Second to none on quality

— Anonymous
✓ VERIFIED
May 10, 2026

The only gaskets I run on my Harley they work

— MIKAL R
✓ VERIFIED
Apr 28, 2026

Good quality part for a far price

— Christopher E