Mahle 55017 Engine Cylinder Head Gasket

Mahle 55017 Cylinder Head Gasket Overview

The Mahle 55017 engine cylinder head gasket is a multi-layered steel sealing solution for Subaru turbo and performance applications. It is built for the 1.58 mm thickness and 99.80 mm cylinder bore diameter specified for the application, with no gasket sealant included.

Mahle gaskets are used by OEMs and technicians worldwide for dependable engine sealing. This part number, 55017, is a direct-fit style option for Subaru WRX STI, WRX, Impreza, Forester, Legacy, Outback, and Saab 9-2X applications listed below.

Key Features

• Multi-layered steel construction for cylinder head sealing
• 1.58 mm thickness / 0.06 in. thickness specification
• 99.80 mm cylinder bore diameter
• No gasket sealant included
• Mahle engine sealing product for Subaru and Saab applications
• Cross-reference: FEL-PRO 26531 PT

Detailed Product Description

Mahle 55017 is an engine cylinder head gasket engineered around a multi-layered steel design to maintain sealing integrity between the cylinder head and engine block. The listed thickness and bore diameter help match the gasket to the intended engine configuration, making it a relevant choice for Subaru WRX STI, Subaru WRX, Subaru Impreza, Subaru Forester, Subaru Legacy, Subaru Outback, and Saab 9-2X fitments shown in the catalog data. The improved design with high-temperature coating noted in the fitment data supports demanding engine environments.

For buyers searching for a Subaru WRX STI head gasket, Subaru Impreza cylinder head gasket, or Mahle 55017 replacement gasket, this part provides a cataloged sealing option for the listed model years. The part number 55017 is also useful when cross-shopping against FEL-PRO 26531 PT for the same application.

What This Part Helps Address

• Coolant or combustion sealing loss at the cylinder head
• Compression leakage between the head and block
• Head gasket replacement during engine repair or rebuild
• Sealing needs on turbocharged Subaru engine applications
• Replacement of a worn or heat-cycled cylinder head gasket

Installation Notes and Tips

Fits 2013-2018 Subaru WRX STI, N/A; 2006-2014 Subaru Impreza, N/A; 2013-2014 Subaru WRX, N/A; 2006-2013 Subaru Forester, N/A; 2007-2012 Subaru Legacy, N/A; 2007-2012 Subaru Outback, N/A; 2006 Saab 9-2X, N/A. Cylinder head bolt replacement is recommended for the listed applications. Verify engine code, bore size, and surface condition before installation, and follow the manufacturer torque sequence and service procedure during assembly.

Quality Assurance

Mahle supplies sealing products used by OEMs and technicians around the world, and this gasket follows the brand’s engine sealing focus for consistent fitment and material selection. The multi-layered steel construction and high-temperature coating note in the fitment data support use in demanding engine service conditions.