No hassle
Live in-stock
Save over
60% retail
You have no items in your shopping cart.
June Sale: $77.01
In Stock
May ship from manufacturer
Free Shipping
Part number: C4623-040
Competitor Pricing
Product Details
Cometic C4623-040 Head Gasket
MLS Cylinder Head Gasket

Cometic Head Gaskets are developed with the performance enthusiast in mind. With so many individual requirements for each motor Cometic offers a number of options to suit your specific motor and needs.

The Cometic MLS gasket is comprised of three layers of Stainless Steel. Cometic uses Stainless steel for increased strength, it?s ability to rebound and corrosion resistance. The outer layers of the gasket are embossed and coated on both sides with a flouroelastomer rubber based material (Viton) designed to meet the demands of a variety of harsh sealing environments, load conditions and surface finishes. The Viton coating is heat resistant to 2500C or 4820F.

The center or shim layer of the gasket is comprised of an uncoated Stainless Steel layer, which can be varied to accommodate multiple thickness requirements. The MLS gasket is ideal for both aluminum heads to cast iron blocks and aluminum heads to aluminum blocks.

The composition of MLS will also withstand the shearing forces created by aluminum heads on cast iron blocks. No re-torque is necessary. By design the MLS gasket promotes an even torque load across the sealing surface allowing for measurable reduced bore distortion.

A perforated steel core with an elastomer surface is ideal for head gaskets allowing heat to be drawn evenly across the gasket surface while providing maximum sealing characteristics when exposed to coolants and oils.


Add your review
Had all items i needed.
It was very easy. I am looking forward to seeing it. It's for my granddaughters truck.
Best price I could find, and free shipping. ..I am hoping to get the tank soon
Very nice experience and just product looking for.
Show All Reviews
Subaru B9 Tribeca
2007 Subaru B9 Tribeca ALL / Base / Limited
2006 Subaru B9 Tribeca ALL / Base / Limited
Subaru Legacy
2009 Subaru Legacy 3.0 R / 3.0 R Limited / 3.0 R Premier / ALL
2008 Subaru Legacy 3.0 R Limited / ALL
2007 Subaru Legacy ALL
2006 Subaru Legacy ALL
2005 Subaru Legacy ALL
2004 Subaru Legacy ALL
Subaru Outback
2009 Subaru Outback 3.0 R Limited / 3.0 R Premier
2008 Subaru Outback 3.0 R / R L.L. Bean Edition
2007 Subaru Outback R L.L. Bean Edition
2006 Subaru Outback R / R L.L. Bean Edition / R VDC Limited
2005 Subaru Outback R / R L.L. Bean Edition / VDC Limited
2004 Subaru Outback H6 / H6 35th Anniversary Edition / H6 VDC / L.L. Bean
2003 Subaru Outback H6 / L.L. Bean / VDC
Return Policy
Returns are easy at THMotorsports
Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy