Mahle 54766 Engine Cylinder Head Gasket - Left
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Mahle

Mahle 54766 Engine Cylinder Head Gasket - Left

Brand Mahle 54766
Position Left
Additional Package Contents None
Cylinder Bore Diameter 3.71
Cylinder Bore Diameter 94.34
Cylinder Head Gasket Material Graphite
Gasket Sealant Included No
Item Grade OEM Standard
Material Composite
Thickness 0.07
Thickness 1.71
Torque To Yield Yes
Fits Cadillac · 18 vehicles

OEM standard. Built as a direct-fit cylinder head gasket for dependable sealing.

Composite and graphite. Material pairing helps deliver a durable, reliable seal.

Trusted by OEMs. MAHLE gaskets are known for world-class sealing performance.

Cross-references FEL-PRO 26380 PT and General Motors 89017450 for the same application. See all 2.

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Mahle 54766 Cylinder Head Gasket

The Mahle 54766 engine cylinder head gasket is an OEM-standard sealing solution for select Cadillac applications. Built with composite construction and graphite cylinder head gasket material, it is specified for left-side use on covered vehicles and supports proper combustion sealing, coolant separation, and oil control.

Key Features

  • Engine cylinder head gasket for select Cadillac STS, SRX, and XLR applications
  • Composite gasket construction with graphite cylinder head gasket material
  • OEM standard item grade for factory-style service replacement
  • 0.07 in. (1.71 mm) thickness
  • 3.71 in. (94.34 mm) cylinder bore diameter
  • Torque-to-yield fastener application
  • No gasket sealant included
  • Mahle 54766 part number for accurate ordering and catalog lookup

Detailed Description

Mahle designs sealing products for OE-level service, and the 54766 cylinder head gasket follows that approach with a composite body and graphite sealing surface. This gasket is engineered for left-side installation on 2004-2009 Cadillac SRX, 2005-2010 Cadillac STS, and 2004-2009 Cadillac XLR applications. It is also cross-referenced to FEL-PRO 26380 PT and General Motors 89017450 for the same application. The Mahle 54766 is a direct-fit sealing component for technicians replacing a cylinder head gasket on these Cadillac engines.

What It Helps Address

  • Coolant leakage at the cylinder head sealing surface
  • Combustion pressure loss from a compromised head gasket
  • Oil seepage between the cylinder head and engine block
  • Overheating concerns caused by sealing failure
  • Compression imbalance on affected Cadillac engines

Installation Notes and Tips

Use this gasket only on the listed left-side Cadillac applications. Follow the service procedure for surface preparation, torque sequence, and torque-to-yield fastener replacement requirements. The product notes specify using graphite cylinder head bolts during installation. Verify cylinder head and block surfaces are clean, flat, and free of old gasket material before assembly. Mahle 54766 should be installed as part of a complete head-gasket service with correct torque procedures.

Quality Assurance

Mahle gaskets are widely used in OEM and professional repair environments for sealing performance and dimensional consistency. The 54766 is an OEM-standard replacement built for the specified Cadillac fitments and backed by Mahle’s sealing product engineering focus.

This part fits 18 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2010CadillacSTS4.6LV8LeftUse graphite cylinder head bolts when installing Engine Cylinder Head Gasket.
2009CadillacSRX4.6LV8LeftUse graphite cylinder head bolts when installing Engine Cylinder Head Gasket.
2009CadillacSTS4.6LV8LeftUse graphite cylinder head bolts when installing Engine Cylinder Head Gasket.
2009CadillacXLR4.6LV8LeftUse graphite cylinder head bolts when installing Engine Cylinder Head Gasket.
2008CadillacSRX4.6LV8LeftUse graphite cylinder head bolts when installing Engine Cylinder Head Gasket.
2008CadillacSTS4.6LV8LeftUse graphite cylinder head bolts when installing Engine Cylinder Head Gasket.
2008CadillacXLR4.6LV8LeftUse graphite cylinder head bolts when installing Engine Cylinder Head Gasket.
2007CadillacSRX4.6LV8LeftUse graphite cylinder head bolts when installing Engine Cylinder Head Gasket.
2007CadillacSTS4.6LV8LeftUse graphite cylinder head bolts when installing Engine Cylinder Head Gasket.
2007CadillacXLR4.6LV8LeftUse graphite cylinder head bolts when installing Engine Cylinder Head Gasket.
2006CadillacSRX4.6LV8LeftUse graphite cylinder head bolts when installing Engine Cylinder Head Gasket.
2006CadillacSTS4.6LV8LeftUse graphite cylinder head bolts when installing Engine Cylinder Head Gasket.
2006CadillacXLR4.6LV8LeftUse graphite cylinder head bolts when installing Engine Cylinder Head Gasket.
2005CadillacSRX4.6LV8LeftUse graphite cylinder head bolts when installing Engine Cylinder Head Gasket.
2005CadillacSTS4.6LV8LeftUse graphite cylinder head bolts when installing Engine Cylinder Head Gasket.
2005CadillacXLR4.6LV8LeftUse graphite cylinder head bolts when installing Engine Cylinder Head Gasket.
2004CadillacSRX4.6LV8LeftUse graphite cylinder head bolts when installing Engine Cylinder Head Gasket.
2004CadillacXLR4.6LV8LeftUse graphite cylinder head bolts when installing Engine Cylinder Head Gasket.
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
FEL-PRO — 26380 PTGeneral Motors — 89017450