Mahle F31814 Exhaust Pipe Flange Gasket

Mahle Catalytic Converter Gasket F31814

The Mahle F31814 catalytic converter gasket is an OEM-standard exhaust pipe flange gasket built with steel seal material for reliable sealing at the converter-to-pipe connection. It is a direct-fit style replacement for a range of Nissan and INFINITI applications, including Nissan Pathfinder, Murano, Maxima, and Altima models.

Mahle’s gasket line is known for OE-level sealing performance used by technicians and OEMs worldwide. This catalytic converter gasket is made for exhaust flange service where a tight, stable seal is needed at the rear, inlet, outlet, or front pipe connection depending on the vehicle application.

Key Features

• OEM Standard item grade for exhaust sealing service
• Steel seal material for durable flange sealing
• Gasket Type A construction
• Fits catalytic converter to exhaust pipe applications on select Nissan and INFINITI vehicles
• Cross-reference: Datsun/Nissan 20691-51E01 and FEL-PRO 60905
• Mahle part number F31814 for catalog and service matching

Fitment and Application

• Fits 2017-2025 Nissan Pathfinder, rear; right or left converter to exhaust pipe; catalytic converter gasket.
• Fits 2017-2024 Nissan Murano, rear; right or left converter to exhaust pipe; catalytic converter gasket.
• Fits 2018-2023 Nissan Maxima, inlet; right or left converter to exhaust pipe; catalytic converter gasket.
• Fits 2017-2018 Nissan Altima, inlet; right or left converter to exhaust pipe; catalytic converter gasket.
• Fits 2017 Nissan Maxima, rear; right or left converter to exhaust pipe; catalytic converter gasket.
• Fits 2014-2016 INFINITI QX60, rear; ring type A steel exhaust pipe flange gasket.
• Fits 2007-2016 Nissan Altima, rear; ring type A steel exhaust pipe flange gasket.
• Fits 2016 Nissan Maxima, rear; ring type A steel exhaust pipe flange gasket.
• Fits 2009-2014 Nissan Maxima, rear; ring type A steel exhaust pipe flange gasket.
• Fits 2009-2016 Nissan Murano, rear; ring type A steel exhaust pipe flange gasket.
• Fits 2013-2016 Nissan Pathfinder, rear; ring type A steel exhaust pipe flange gasket.
• Fits 2007-2015 Nissan Altima, outlet; ring type A steel tailpipe to muffler gasket.
• Fits 2013 INFINITI JX35, rear; ring type A steel exhaust pipe flange gasket.
• Fits 2008 Nissan Altima, N/A; ring type A steel pipe to muffler gasket.
• Fits 2007 Nissan Altima, N/A; ring type A steel pipe to main muffler gasket.
• Fits 2004-2007 Nissan Maxima, front rearward; ring type A steel inlet and outlet gasket.
• Fits 2003-2006 Nissan Sentra, N/A; exhaust pipe flange gasket for steel ring type A exhaust manifold to pipe fitment.
• Fits 2003-2004 INFINITI I35, inlet; ring type A steel exhaust pipe flange gasket.
• Fits 2001-2004 Nissan Frontier, N/A; exhaust pipe flange gasket for steel ring type A exhaust manifold to pipe fitment.
• Fits 2000-2004 Nissan Xterra, N/A; exhaust pipe flange gasket for steel ring type A exhaust manifold to pipe fitment.
• Fits 2002-2003 Nissan Maxima, inlet; ring type A steel exhaust pipe flange gasket.
• Fits 2000-2002 INFINITI G20, inlet; manifold to converter; catalytic converter gasket.
• Fits 2002 INFINITI I35, front; ring type A steel exhaust pipe flange gasket.
• Fits 2000-2001 INFINITI I30, front; converter to front pipe; catalytic converter gasket.
• Fits 1999 INFINITI G20, N/A; resonator to muffler; exhaust pipe gasket.
• Fits 1991-1996 INFINITI G20, N/A; resonator to muffler; exhaust pipe gasket.

What This Gasket Helps Address

• Exhaust leaks at the catalytic converter flange
• Noise from a loose or failing exhaust pipe seal
• Loss of sealing between the converter and front or rear pipe
• Corrosion-related gasket deterioration at the flange joint
• Service replacement for worn Nissan Altima, Maxima, Murano, and Pathfinder exhaust connections

Installation Notes and Tips

Match the gasket shape and flange style to the original part before installation. Clean both mating surfaces thoroughly, inspect the flange for warping or damage, and confirm the correct position and application on the vehicle. For best results, replace the gasket any time the converter or exhaust pipe is removed from the joint.

Quality Assurance

Mahle gaskets are built as OE-standard sealing components and are trusted in OEM and technician service environments. The F31814 is cataloged as a direct replacement for select Nissan and INFINITI exhaust sealing applications, including Nissan Pathfinder, Murano, Maxima, and Altima service points.