✓ VERIFIED
Apr 17, 2025
Gasket quality
Great gasket kit over delivered in the quality of the gasket set great job
COMETIC
SKU: 68-9133
Cometic Evo Sportster EST Complete Gasket Kit - Harley Evolution Sportster
$618.000,00
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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.
The Cometic Evo Sportster EST Gasket Kit provides a complete overhaul set of gaskets, seals, washers, and O-rings for your Evolution Sportster V-twin engine. Featuring Extreme Sealing Technology, this kit ensures superior sealing for even the most demanding performance applications. It's the ideal choice for a thorough and reliable engine rebuild.
Why riders pick this
- Complete engine overhaul kit for Evo Sportster
- Features Extreme Sealing Technology (EST)
- Includes MLS head gaskets for superior sealing
- Viton-coated base gaskets and valve stem seals
- All gaskets, seals, washers, and O-rings included
When rebuilding your Evo Sportster, the Cometic Evo Sportster EST Gasket Kit offers unmatched sealing performance and reliability. This comprehensive kit includes everything needed for a complete engine overhaul, from MLS head gaskets to blue Viton valve stem seals. Cometic's Extreme Sealing Technology (EST) ensures that each component is engineered with advanced materials to withstand the rigors of high-performance V-twin engines, preventing leaks and maintaining optimal compression and oil control.
Uncompromising Sealing with EST Technology
- MLS (Multi-Layer Steel) head gaskets provide exceptional cylinder sealing
- Steel Viton-coated base gaskets offer enhanced durability and heat resistance
- Blue Viton valve stem seals ensure superior oil retention
- AFM material components deliver robust sealing properties
- Complete motor kit includes all necessary gaskets and seals for a full overhaul
Build Your V-Twin with Confidence
Using the Cometic Evo Sportster EST Gasket Kit means you're equipping your engine with components designed for precision and longevity. This all-inclusive kit eliminates the guesswork and the need to source individual parts, streamlining your rebuild process. Whether you're refreshing a classic or building a custom powerhouse, trust Cometic to provide the foundation for a leak-free and powerful Evolution Sportster engine.
Specifications
- Brand: Cometic
- Manufacturer Part #: C9133
- OE Part #: 17032-91
- Weight: 1.74 lbs
Common questions
What does EST (Extreme Sealing Technology) mean for my engine?
EST is Cometic's advanced gasket technology, utilizing MLS head gaskets, Viton-coated steel base gaskets, and AFM seals. This combination provides superior sealing capabilities crucial for high-performance V-twin engines.
Is this kit suitable for a full engine rebuild on my Evo Sportster?
Yes, this kit is designed as a complete overhaul set. It includes every gasket, seal, washer, and O-ring needed for a full motor rebuild on Evo Sportster V-twin engines.
How can I confirm this kit fits my specific Sportster model?
This kit is made for Evo Sportster models. To ensure precise compatibility, please utilize our Shop by Bike tool on the website to verify fitment for your exact year and model.
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 | 68-9133 |
| WEIGHT | 1.74 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
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1
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✓ 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
