Mahle G31178 EGR Valve Gasket

Mahle G31178 EGR Valve Gasket

Mahle G31178 is a graphite exhaust gas recirculation (EGR) valve gasket built for emission control sealing applications. It is used on a wide range of Honda, Acura, and select import and domestic vehicles, including Honda Civic, Honda Accord, Acura MDX, and Honda Pilot applications.

Key Features

• Graphite gasket material for reliable sealing at EGR connection points
• Designed for exhaust gas recirculation valve and EGR tube sealing applications
• Mahle emission control gasket line trusted by OEMs and technicians
• Direct-fit replacement for many Honda, Acura, Isuzu, Nissan, Chevrolet, GMC, Pontiac, Buick, Cadillac, Saturn, Jeep, and Subaru applications
• Part number G31178 for catalog lookup and cross-reference matching

Product Details

Mahle’s Exhaust Gas Recirculation (EGR) Valve Gasket line focuses on sealing performance where exhaust flow and heat demand a stable gasket material. This G31178 gasket uses graphite, a material commonly selected for EGR service because it maintains sealing integrity in high-temperature emission control locations. It cross-references Beck/Arnley 0391012 and FEL-PRO 70978 for the same application.

Compatible With applications include Fits 2022 Acura MDX, N/A; Fits 2018-2020 Acura MDX, N/A; Fits 2020-2022 Honda HR-V, N/A; Fits 2018-2022 Honda Odyssey, N/A; Fits 2019-2022 Honda Passport, N/A; Fits 2018-2022 Honda Pilot, N/A; and Fits 2018-2022 Honda Ridgeline, N/A. Additional coverage includes many Honda Civic, Honda Accord, and Acura TLX EGR tube gasket applications across multiple model years.

Common Problems This Gasket Addresses

• Exhaust leaks at the EGR valve or EGR tube flange
• Damaged or flattened gasket sealing surfaces
• Carbon seepage around the EGR connection
• Check engine light concerns related to EGR sealing faults
• Noise or odor from a leaking emission control joint

Installation Notes and Tips

Clean both mating surfaces before installation and remove carbon buildup, old gasket material, and corrosion from the flange area. Verify the correct application by year, make, model, and engine-specific EGR location before ordering. For best sealing results, inspect the EGR valve and tube surfaces for warping or pitting, since a new gasket cannot correct damaged mating faces.

Quality Assurance

Mahle gaskets are engineered as world-class sealing products used by OEMs and professional technicians. The graphite construction supports dependable sealing in emission control service, and the G31178 part number helps ensure accurate replacement selection for the listed applications.