New to Powersport Superstore? Try our Year-Make-Model search and find the right parts for your ride by clicking "My Garage" on the upper-right! ➡

Cometic Gasket C9221 EST Complete Gasket Kit - 4-1/8in. Bore with .040in. Head Gasket and .010in. Base

SKU: 4574680

Cometic Gasket C9221 EST Complete Gasket Kit - 4-1/8in. Bore with .040in. Head Gasket and .010in. Base

Cometic Gasket
$174.77
$174.77 $209.95
Sale Sold out
/
Shipping calculated at checkout.
In stock and ready for shipping
This is a pre order item. We will ship it when it comes in stock.
Every gasket in these kits uses the best materials possible for its intended application. Multi-Layer Steel (MLS) head gaskets. Steel Viton-coated base gaskets. Blue Viton valve stem seals. Aluminum Foam Material (AFM) race-style exhaust gaskets. Complete kits include motor gasket kit plus primary, derby and inspection cover gaskets.

Vehicle Fitment:

2006 Harley Davidson FLST Heritage Softail
1999-2006 Harley Davidson FLSTC Heritage Softail Classic
2001-2006 Harley Davidson FLSTCI Heritage Softail Classic
1999-2006 Harley Davidson FLSTF Fat Boy
2001-2006 Harley Davidson FLSTFI Fat Boy
2006 Harley Davidson FLSTI Heritage Softail
2005-2006 Harley Davidson FLSTN Softail Deluxe
2005-2006 Harley Davidson FLSTNI Softail Deluxe
1999-2003 Harley Davidson FLSTS Heritage Springer
2005-2006 Harley Davidson FLSTSC Softail Springer Classic
2005-2006 Harley Davidson FLSTSCI Softail Springer Classic
2001-2003 Harley Davidson FLSTSI Heritage Springer
1999-2005 Harley Davidson FXD Dyna Super Glide
2005 Harley Davidson FXDC Super Glide Custom
2005 Harley Davidson FXDCI Super Glide Custom
2004-2005 Harley Davidson FXDI Dyna Super Glide
1999-2005 Harley Davidson FXDL Dyna Low Rider
2004-2005 Harley Davidson FXDLI Dyna Low Rider
1999-2006 Harley Davidson FXST Softail Standard
1999-2006 Harley Davidson FXSTB Night Train
2001-2006 Harley Davidson FXSTBI Night Train
1999 Harley Davidson FXSTC Softail Custom
2000-2006 Harley Davidson FXSTD Softail Deuce
2001-2006 Harley Davidson FXSTDI Softail Deuce
2001-2006 Harley Davidson FXSTI Softail Standard
1999-2006 Harley Davidson FXSTS Springer Softail
2001-2006 Harley Davidson FXSTSI Springer Softail
Secure, Trusted, and Encrypted

Protected by industry-leading 256-bit SSL encryption and backed by Shopify’s PCI DSS–compliant infrastructure. Every page, click, and transaction is encrypted and monitored for threats — so you can shop with confidence knowing your data stays protected.

Parts for Every Machine

We stock aftermarket parts, gear and accessories for motorcycles, ATVs, UTVs, snowmobiles, personal watercraft, and even performance cars — all backed by expert support and live inventory.

Real-Time Fitment Accuracy

Search by Year, Make, and Model with confidence. Our proprietary vehicle fitment system ensures you’re only shown what fits — no guesswork, no returns — just parts that fit.

Fast, Trackable Shipping

We ship from over 20 U.S. warehouses — often same or next business day. Every order includes tracking and transparent fulfillment updates from start to finish, all processed through a secure, encrypted checkout.

Quick Links

Ride With Us. Stay Connected.

Follow us for real-time fitment updates, gear drops, and pro tips from the garage. No spam, just parts, tech, and news for riders like you.

Your Garage

Add a Vehicle