Kooks Chrysler 6.1L & 6.4L Hemi Cometic MLS (Multi-Layer Stainless Steel) Exhaust Gaskets - SS-755872 - KSHSS-755872

The Kooks SS-755872 Multi-Layer Stainless Steel Exhaust Gaskets are the go-to header gasket solution for Chrysler HEMI engine builds. Engineered specifically for the 6.1L, 6.2L, 6.4L, and 2009+ 5.7L HEMI platforms, these Cometic MLS (Multi-Layer Stainless Steel) exhaust gaskets deliver a robust, leak-free seal between your cylinder head and header flanges — whether you're refreshing a worn street build or finalizing a race-ready MOPAR setup. Manufactured in the USA by Kooks Custom Headers, a name synonymous with HEMI performance, part number SS-755872 is the same gasket that ships inside most Kooks header kits.

Key Features & Benefits

• Multi-Layer Stainless Steel (MLS) Construction: The MLS design uses multiple bonded stainless steel layers to conform tightly to head and flange surfaces, resisting blow-out under the extreme heat and pressure cycles common to high-performance HEMI builds.
• T304 Aircraft-Quality Stainless Steel: Kooks uses T304-grade stainless steel in their products, a material chosen for its excellent corrosion resistance and durability in high-heat exhaust environments — keeping your seal intact season after season.
• 1.625-Inch Tube Diameter: The gasket is sized to a 1.625 in. tube diameter, matching the primary tube sizing found on Kooks HEMI header kits for a proper, unrestricted seal.
• Dyno and Race Tested: Kooks designs and tests their products on the dyno and in real racing conditions, meaning this gasket is validated for performance applications — not just street driving.
• Broad HEMI Engine Compatibility: Fits the 6.1L, 6.2L, 6.4L, and 2009+ 5.7L HEMI engines, covering a wide range of Dodge, Chrysler, and Jeep HEMI-powered vehicles in a single part number.
• Made in the USA: Manufactured domestically, consistent with Kooks' commitment to American-made quality from their Statesville, NC facility.
• Ideal Replacement or Upgrade Gasket: Per Kooks, these gaskets are included in most of their header kits. This listing is intended as a standalone purchase for upgrades, replacements, or situations where the original gaskets were damaged or lost during installation.

Specifications

• Part Number: SS-755872
• Brand: Kooks Custom Headers
• Material: Multi-Layer Stainless Steel (MLS)
• Tube Diameter: 1.625 in.
• Country of Origin: United States
• UPC: 0842422177164

Fitment

The Kooks SS-755872 is designed to fit the following Chrysler HEMI engine families:

• Chrysler / Dodge / Jeep 6.1L HEMI engines
• Chrysler / Dodge / Jeep 6.2L HEMI engines
• Chrysler / Dodge / Jeep 6.4L HEMI engines (Apache / 392)
• Chrysler / Dodge / Jeep 5.7L HEMI engines — 2009 and newer only

This includes popular platforms such as the Dodge Charger, Dodge Challenger, Dodge Durango, Dodge Ram, Chrysler 300, and Jeep Grand Cherokee equipped with the above engines. Note: If your vehicle uses a pre-2009 5.7L HEMI, verify compatibility with Kooks before ordering, as fitment is confirmed only for 2009+ 5.7L applications. Always cross-reference your specific header kit part number with Kooks to confirm this gasket is the correct match for your setup.

What's in the Box

This listing covers the Kooks SS-755872 Multi-Layer Stainless Steel exhaust header gasket set for the Chrysler HEMI engine applications listed above. Per Kooks, these gaskets are already included inside most Kooks header kits — this part number should be purchased separately only as a replacement for lost, damaged, or worn gaskets, or as an upgrade over factory exhaust gaskets.

Why Buy from ThreePiece.us

• Free Shipping on Every Order: Every order ships free — no minimum required and no hidden freight charges at checkout.
• Affirm Financing Available: Spread your purchase into manageable payments with Affirm financing, available at checkout.
• HEMI Fitment Expertise: Not sure if SS-755872 is the right gasket for your specific header kit or engine combination? Our team is here to help you confirm fitment before you buy.
• Genuine Kooks Products: We carry Kooks Custom Headers parts direct — the same dyno-tested, race-validated components trusted by MOPAR performance builders nationwide.

Frequently Asked Questions

Q: Do I need to buy these gaskets separately if I'm already purchasing a Kooks header kit?
A: Most likely not. According to Kooks, these gaskets are included in most of their header kits. Kooks states that SS-755872 should only be ordered separately as an upgrade or as a replacement for damaged or lost gaskets. Check your header kit's contents before adding these to your order.

Q: Does this gasket fit the 5.7L HEMI in my older Dodge Ram or Charger?
A: The SS-755872 is confirmed to fit the 5.7L HEMI for 2009 and newer applications. If your vehicle has a pre-2009 5.7L HEMI, this fitment has not been confirmed in the available product data — contact us or Kooks directly to verify before purchasing.

Q: What tube diameter does this gasket accommodate?
A: The Kooks SS-755872 is sized for a 1.625-inch tube diameter, which corresponds to the primary tube sizing used in Kooks' HEMI header kits.

Q: Is this gasket compatible with the 6.2L Hellcat or Trackhawk HEMI?
A: Yes — Kooks lists the 6.2L HEMI as a supported engine for SS-755872 alongside the 6.1L, 6.4L, and 2009+ 5.7L. If you are using a Kooks header kit on a 6.2L-powered vehicle, this is the matching replacement or upgrade gasket.