COMETIC SKU: 68-9183F1

Cometic Evo Big Twin Inspection/Derby Cover Gasket - EA 1/PK — Harley-Davidson (1984-1999)

$28.000,00
Free shipping on orders $99+ · Best value guarantee
From $2.333,33/mo with Affirm. See if you prequalify
OUT OF STOCK
Free Shipping on orders $99+
Best Value Guarantee
30-Day Returnssee policy
Authorized Dealer — sourced direct
NOT SURE ABOUT FITMENT?

Cometic inspection/derby cover gasket for Evo Big Twin V-twin engines, engineered to seal the outer inspection cover without leaking oil. Direct replacement for stock Evo gaskets used on Harley-Davidson and Indian Motorcycle big twins.

Features

  • Designed for Evo Big Twin engines
  • Direct replacement gasket
  • Oil-resistant seal

Specifications

  • Brand: Cometic
  • Manufacturer Part #: C9183F1
  • Weight: 0.3278 lbs
  • Quantity: 1 per pack

Fitment

Fits V-twin motorcycles with Evo Big Twin engines, including Harley-Davidson and Indian Motorcycle models using stock inspection/derby covers.

Frequently Asked Questions

What does this gasket seal?

The inspection/derby cover gasket seals the outer inspection port on the Evo Big Twin engine to prevent oil weeping.

Is this a direct replacement for the OEM gasket?

Yes — this Cometic gasket replaces the stock Evo Big Twin inspection cover gasket with the same fitment and sealing function.

Do I need a new gasket every time I remove the inspection cover?

Best practice is to replace the gasket when you remove the cover. Reusing old gaskets often leads to slow leaks around the cover bolt.

Will this fit my Shovelhead or Twin Cam?

No — this part is specific to Evo Big Twin engines. Shovelhead and Twin Cam engines use different gasket part numbers.

BRANDCometic
TYPEGaskets/Seals
SKU68-9183F1
WEIGHT0.33 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
4.71
14 RATINGS
5★ 11
4★ 2
3★ 1
2★ 0
1★ 0
✓ VERIFIED
Apr 1, 2024

keeps them lookin shiny

keeps the oil on the right side

— Frank N
✓ VERIFIED
Dec 4, 2023

Easy to install. Good quality and price. Does what it is supposed to do

— Brendan S
✓ VERIFIED
Apr 9, 2019

Very good quality/value for the price, I would buy them again.

— Anonymous
✓ VERIFIED
May 1, 2016

Good gasket, I like these because they are the same thickness as factory, and do not change the end play on the cam and breather

— Anonymous
✓ VERIFIED
Apr 29, 2015

Decent gasket. Sticks out of the nosecone cover a bit at the top as it doesn't follow the nose cone shape precisely. Seals well.

— Anonymous
✓ VERIFIED
Jun 22, 2014

easy to replace just like oem

— Anonymous