Mahle 54393 Engine Cylinder Head Gasket

Mahle 54393 Engine Cylinder Head Gasket

Mahle 54393 is an OEM-standard engine cylinder head gasket built with graphite sealing material and composite construction for a precise seal between the cylinder head and engine block. It is a direct-fit service part for select Nissan, INFINITI, and Mercury applications, including Nissan Frontier, Xterra, Quest, Pathfinder, and INFINITI QX4.

Key Features

• Engine cylinder head gasket for sealing the combustion chamber and coolant/oil passages
• Composite construction with graphite cylinder head gasket material
• OEM-standard item grade for service replacement use
• Thickness: 0.05 in. / 1.32 mm
• Cylinder bore diameter: 3.71 in. / 94.23 mm
• Sealant not included
• Additional package contents: head gasket

Detailed Description

Mahle 54393 is engineered as an OE-style cylinder head gasket for engines that require a 94.23 mm bore diameter and 1.32 mm thickness. The graphite sealing surface helps maintain compression and fluid separation under normal engine operating conditions, while the composite gasket body supports consistent sealing across the head-to-block interface. This part number is used in applications such as 1999-2004 Nissan Frontier, 2000-2004 Nissan Xterra, 1999-2002 Nissan Quest, 1996-2000 Nissan Pathfinder, and 1997-2000 INFINITI QX4. This part cross-references Beck/Arnley 035-1956 and FEL-PRO 26219 PT for the same application. Mahle 54393 is a practical choice when servicing engines that need a replacement head gasket with OE-standard dimensions and material construction.

Common Repair Uses

• Restores sealing after a blown head gasket diagnosis
• Addresses coolant loss caused by head-to-block sealing failure
• Helps correct compression loss from gasket leakage
• Supports repair of oil and coolant mixing at the cylinder head interface
• Used during cylinder head service on Nissan Frontier, Xterra, Quest, Pathfinder, and INFINITI QX4 engines

Installation Notes and Tips

Clean and inspect the cylinder head and engine block mating surfaces before installation. Use graphite cylinder head bolts when installing this engine cylinder head gasket, as noted in the fitment data. Verify bore size, thickness, and engine application before assembly, and follow the vehicle manufacturer’s torque sequence and torque specifications during reassembly.

Quality Assurance

Mahle gaskets are supplied as OE-standard sealing components and are trusted by OEMs and technicians worldwide for engine sealing applications. Mahle 54393 is built to meet the dimensional and material requirements expected for professional cylinder head gasket service.