Mahle 54509 Engine Cylinder Head Gasket

Brand Mahle 54509
Additional Package Contents Head Gasket
Cylinder Bore Diameter 3.52
Cylinder Bore Diameter 89.28
Cylinder Head Gasket Material Graphite
Gasket Sealant Included No
Item Grade OEM Standard
Material Composite
Thickness 0.07
Thickness 1.75
Fits Subaru · 5 vehicles

OEM standard. Engine cylinder head gasket built to match original equipment expectations.

Graphite sealing surface. Helps deliver reliable sealing performance under demanding conditions.

Composite construction. Combines materials for dependable sealing and durability.

Cross-references FEL-PRO 9618 PT, Rol HG34350 and Subaru 11044 AA120 for the same application. See all 3.

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Mahle 54509 Cylinder Head Gasket Overview

The Mahle 54509 engine cylinder head gasket is an OEM-standard sealing component for the 1993-1997 Subaru Impreza. Built with composite construction and a graphite cylinder head gasket material, it is specified for dependable sealing between the cylinder head and engine block in the Subaru Impreza application.

Mahle gaskets are used by OEMs and technicians worldwide for engine sealing applications. This Mahle 54509 head gasket is a direct-fit style replacement for Subaru Impreza models in the confirmed year range and is built to match the sealing demands of the original application.

Key Features

  • Engine cylinder head gasket for Subaru Impreza applications
  • Mahle 54509 part number for catalog and service reference
  • Composite gasket construction with graphite head gasket material
  • OEM Standard item grade for factory-style service replacement
  • 0.07 in. / 1.75 mm thickness
  • 3.52 in. / 89.28 mm cylinder bore diameter
  • No gasket sealant included

Detailed Product Description

The Mahle 54509 is an engine cylinder head gasket engineered for 1993-1997 Subaru Impreza models. Its composite design and graphite sealing material support the combustion sealing and coolant/oil separation required in a cylinder head service repair. The 54509 is a practical choice when replacing a worn or damaged head gasket on a Subaru Impreza, especially when restoring proper compression and sealing integrity.

This part cross-references FEL-PRO 9618 PT and Subaru 11044 AA120 for the same application. If you are searching for a Subaru Impreza head gasket, Subaru Impreza cylinder head gasket, or Mahle 54509 replacement, this part matches the confirmed fitment range and service type.

What This Part Helps Address

  • Combustion leakage at the cylinder head sealing surface
  • Coolant loss caused by a compromised head gasket
  • Oil and coolant mixing from a failed sealing interface
  • Compression loss affecting engine performance
  • Sealing issues during Subaru Impreza engine repair

Installation Notes and Tips

Fits 1993-1997 Subaru Impreza, N/A. Use graphite cylinder head bolts when installing Engine Cylinder Head Gasket. Clean and inspect the head and block surfaces before installation, and verify that all mating surfaces are flat and free of debris. Follow the vehicle service procedure for torque sequence and torque specification during reassembly.

Quality Assurance

Mahle supplies sealing products used in OEM and technician service environments, and this gasket is built to OEM Standard expectations for the listed application. Confirm engine code, head condition, and related sealing components before installation to complete the repair correctly.

This part fits 5 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1997SubaruImpreza1.8LH4N/AUse graphite cylinder head bolts when installing Engine Cylinder Head Gasket.
1996SubaruImpreza1.8LH4N/AUse graphite cylinder head bolts when installing Engine Cylinder Head Gasket.
1995SubaruImpreza1.8LH4N/AUse graphite cylinder head bolts when installing Engine Cylinder Head Gasket.
1994SubaruImpreza1.8LH4N/AUse graphite cylinder head bolts when installing Engine Cylinder Head Gasket.
1993SubaruImpreza1.8LH4N/AUse graphite cylinder head bolts when installing Engine Cylinder Head Gasket.
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
FEL-PRO — 9618 PTRol — HG34350Subaru — 11044 AA120