COMETIC SKU: 68-9205

Cometic Sportster Head & Base Gasket Standard Bore 2-Pack - Harley Evo XL

$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 Sportster head and base gasket set is designed for Evo XL engines with a standard bore, providing a reliable seal for your V-twin's top end. Sold in a convenient 2-pack, it's a direct replacement for the OEM Harley part.

Why riders pick this

  • 2-pack of head and base gasket sets
  • For Harley Evo XL engines with standard bore
  • Direct OEM replacement for #16664-86b
  • Ensures reliable top-end sealing
  • Critical for engine rebuilds and maintenance

When you're building or rebuilding an Evo Sportster engine, a solid top-end seal is critical for performance and longevity. This Cometic head and base gasket set is engineered specifically for standard bore Evo XL motors, ensuring a precise fit and reliable sealing under the demands of V-twin operation. The 2-pack provides enough gaskets for a full engine refresh or a spare set for future maintenance.

Precision Sealing for Evo XL Top Ends

  • Two complete head and base gasket sets included
  • Designed for standard bore Evo XL Sportster engines
  • Direct replacement for OEM Harley part #16664-86b
  • Engineered for reliable sealing under heat and vibration

Build Your Sportster Right

Don't compromise on crucial engine components. These Cometic gaskets are manufactured to exacting standards, providing the confidence that your Sportster's top end will be sealed correctly. Whether you're doing a routine top-end refresh or chasing more power, using quality gaskets is foundational to a successful build. Ensure your Evo XL runs strong and leak-free.

Specifications

  • Brand: Cometic
  • Manufacturer Part #: C9205
  • OEM Reference: 16664-86b
  • Length: 8.5 in
  • Width: 6 in
  • Height: 0.6 in
  • Weight: 0.315 lbs
  • Quantity: 2 per pack

Common questions

What's included in this 2-pack of gaskets?

This 2-pack includes two complete head and base gasket sets, which is enough for one full engine rebuild or to have a spare set on hand for future service.

Will these gaskets fit my Evo XL if it has big bore pistons?

No, this specific part number is designed only for standard bore Evo XL engines. If your engine has big bore pistons, you will need a different gasket set tailored to that bore size.

Are these Cometic gaskets equivalent to the OEM Harley part #16664-86b?

Yes, Cometic manufactures these gaskets as a direct, OEM-equivalent replacement for Harley-Davidson part number 16664-86b, ensuring compatibility and reliable performance.

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
SKU68-9205
WEIGHT0.32 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★ 0
1★ 1
✓ VERIFIED
Apr 17, 2025

Gasket quality

Great gasket kit over delivered in the quality of the gasket set great job

— Randy M
✓ 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.

— Roman B
✓ VERIFIED
Feb 21, 2022

Fits well!

— Anonymous
✓ VERIFIED
Sep 10, 2021

Quality part great service and got it ahead of time great place

— Anonymous
✓ 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.

— Anonymous
✓ 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

— Anonymous