Mahle HS54661H Engine Cylinder Head Gasket Set

Brand Mahle HS54661H
Additional Package Contents Contains miscellaneous gaskets and seals
Cylinder Head Bolts Included No
Cylinder Head Gasket Material Multi-layered steel
Exhaust Manifold Gasket Material Multi-layered steel
Intake Manifold Gasket Material Molded rubber
Item Grade Oem standard
Torque To Yield Yes
Fits Cadillac · 2 vehicles

OEM standard. Built for service replacement with factory-style sealing performance.

Multi-layer steel. Head and exhaust manifold gaskets handle heat and pressure effectively.

Torque-to-yield fitment. Matches applications that require torque-to-yield fastener procedures.

Cross-references FEL-PRO HS 26376 PT-8 for the same application. See all 1.

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Engine Cylinder Head Gasket Set for 2008 Cadillac

Restore sealing performance with this Mahle engine cylinder head gasket set, part number HS54661H. It is built to OEM standard and uses multi-layer steel for the cylinder head and exhaust manifold gaskets, with a molded rubber intake manifold gasket for a precise seal.

Key Features

  • Multi-layer steel cylinder head gasket construction
  • Multi-layer steel exhaust manifold gasket material
  • Molded rubber intake manifold gasket material
  • OEM standard grade for service replacement use
  • Torque-to-yield application
  • Contains miscellaneous gaskets and seals

Detailed Description

Mahle HS54661H is an engine cylinder head gasket set engineered for sealing service on select 2008 Cadillac CTS and 2008 Cadillac STS applications. The multi-layer steel head gasket and exhaust manifold gasket support durable sealing under heat and pressure, while the molded rubber intake manifold gasket helps maintain a consistent seal at the intake side. This part number, HS54661H, is a direct fit solution for repair work where cylinder head sealing components need to be replaced together.

This part cross-references FEL-PRO HS 26376 PT-8 for the same application.

What It Is Used For

  • Replacing worn or damaged cylinder head sealing components
  • Addressing coolant or combustion sealing concerns at the head gasket interface
  • Servicing intake and exhaust manifold sealing surfaces during engine repair
  • Supporting repairs where torque-to-yield fastener replacement is recommended

Installation Notes and Tips

Fitment is listed for 2008 Cadillac CTS and 2008 Cadillac STS. Cylinder head bolts are not included, and the fitment notes recommend cylinder head bolt replacement. Fuel injection O-rings are also not included. Follow the vehicle service procedure for surface preparation, torque sequence, and torque-to-yield fastener requirements before installation.

Quality Assurance

Mahle gaskets are trusted by OEMs and technicians worldwide for sealing applications. HS54661H is built to OEM standard specifications for service replacement use.

This part fits 2 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2008CadillacCTS3.6LV6Cylinder Head Bolts Not Included; Fuel Injection O-Rings Not Included; Cylinder Head Bolt Replacement Recommended; Fuel Injection O-Rings Not Included
2008CadillacSTS3.6LV6Cylinder Head Bolts Not Included; Fuel Injection O-Rings Not Included; Cylinder Head Bolt Replacement Recommended; Fuel Injection O-Rings Not Included
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
FEL-PRO — HS 26376 PT-8