✓ VERIFIED
Apr 17, 2025
Gasket quality
Great gasket kit over delivered in the quality of the gasket set great job
COMETIC
SKU: 68-9688
Cometic EVO Sportster Head/Base Gasket .030 Stock Bore 2-Pack - Harley Sportster
$59.50
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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.
This Cometic head and base gasket set is engineered for EVO Sportster engines with a stock bore, featuring a .030 inch thickness. Sold as a two-pack, these gaskets are a direct OEM replacement, ensuring a precise seal between the cylinder head, base, and engine block.
Why riders pick this
- Two complete head and base gasket sets
- For EVO Sportster engines with stock bore
- .030 inch thickness for a tight seal
- Direct OEM replacement specification
When tackling a top-end refresh or rebuild on your Evolution Sportster, the quality of your head and base gaskets is critical. This Cometic set is specifically designed for stock bore applications, providing a robust and reliable seal to maintain optimal engine compression and prevent oil leaks. The two-pack ensures you have the necessary components for a complete service.
Precision Sealing for EVO Sportster Engines
- Includes two complete head and base gasket sets
- Designed for EVO Sportster engines with stock bore
- Features a .030 inch thickness for optimal compression
- Direct OEM replacement for reliable fit and performance
Maintain Peak V-Twin Performance
Properly sealed cylinder heads and bases are fundamental to your Sportster's performance and longevity. These Cometic gaskets are crafted to meet original Harley-Davidson specifications, ensuring a dependable seal. Always confirm your engine's bore size before purchasing, as these gaskets are intended for stock bore applications and will not fit overbored engines.
Specifications
- Brand: Cometic
- Manufacturer Part #: C9688
- Quantity: 2 per pack
- Length: 7 in
- Width: 6 in
- Height: 0.5 in
- Weight: 0.15 lbs
Common questions
What is included in this two-pack?
This two-pack contains two complete head and base gasket sets, which is sufficient for one full engine rebuild or provides two sets for partial rebuilds or future maintenance.
Will this gasket fit overbored EVO Sportsters?
No, this gasket is specifically designed for stock bore EVO Sportster engines. If your engine has been overbored, you will need a different part number to ensure proper sealing.
Is this a direct OEM replacement for my Harley Sportster?
Yes, Cometic manufactures this gasket set to directly match the original Harley-Davidson specifications for EVO Sportster engines, ensuring a precise and reliable fit.
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.
| BRAND | Cometic |
| TYPE | Gaskets/Seals |
| SKU | 68-9688 |
| WEIGHT | 0.15 lb |
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
4.67
18 RATINGS
5★
16
4★
0
3★
1
2★
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1★
1
✓ VERIFIED
Jun 3, 2023
DONT FOLLOW PRINTED INSTRUCTIONS!
DON’T FOLLOW THE INSTRUCTIONS ON THE BOX!!! It says recommended torque is 42 lb/ft. You know what happened at 32lb/ft? One of bolts broke! And I was lucky there was long enough piece sticking out to remove it without drilling out! Check photos.
✓ VERIFIED
Feb 21, 2022
Fits well!
✓ VERIFIED
Sep 10, 2021
Quality part great service and got it ahead of time great place
✓ VERIFIED
Jun 7, 2021
No leaks!!<br />Ordering was a breeze. Shipping was fast and I live way out in the middle of the Pacific Ocean, Hawaii. Price was much better than competition.
✓ VERIFIED
Nov 1, 2020
Great gaskets. Bike has been running great ever since I installed these last week, about 270 miles on em, no issues
