✓ VERIFIED
Apr 1, 2024
keeps them lookin shiny
keeps the oil on the right side
COMETIC
SKU: 68-9179F5
Cometic Evo Big Twin/Twin Cam Primary Housing Gasket - Only BIG Twin 5/PK Oe#34… — Harley-Davidson (2007-2011)
$200.71
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Cometic Evo Big Twin/Twin Cam primary housing gasket for Harley-Davidson V-twin engines. This OEM-replacement gasket seals the primary cover to the crankcase and prevents oil leakage at a critical junction.
Features
- OEM-specification gasket design
- For Evo and Twin Cam Big Twin engines
- 5-pack quantity
- Direct replacement for primary housing seal
Specifications
- Brand: Cometic
- Manufacturer Part #: C9179F5
- Length: 23 in
- Width: 13.07 in
- Height: 0.47 in
- Weight: 0.05 lbs
- Quantity: 5 per pack
Fitment
Fits Harley-Davidson Evo Big Twin and Twin Cam Big Twin engines with stock primary housings.
Frequently Asked Questions
Will this fit Sportster models?
No — this gasket is for Big Twin Evo and Twin Cam engines only. Sportster primary housings require a different part number.
Why are these sold in 5-packs?
Five gaskets in a pack is convenient for shops, fleet maintenance, or riders rebuilding multiple engines or keeping spares.
Do I need to replace the primary gasket during routine service?
Replace it whenever you remove the primary cover for maintenance, inspection, or parts replacement to ensure a clean seal.
Is this a Cometic OEM part or aftermarket?
Cometic manufactures gaskets to OEM specifications as approved replacement parts for Harley-Davidson Big Twin engines.
| BRAND | Cometic |
| TYPE | Gaskets/Seals |
| SKU | 68-9179F5 |
| WEIGHT | 0.05 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
Dec 4, 2023
Easy to install. Good quality and price. Does what it is supposed to do
✓ VERIFIED
Apr 9, 2019
Very good quality/value for the price, I would buy them again.
✓ 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
✓ 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.
✓ VERIFIED
Jun 22, 2014
easy to replace just like oem
