Seal the exhaust pipe flange joint and keep gases flowing through the intended path with the AP Exhaust Exhaust Pipe Flange Gasket 9099. This flange gasket fits between two bolted exhaust pipe flanges, filling the mating surface so combustion gases stay inside the system instead of escaping at the connection. It's a direct-fit replacement across a wide range of applications, including the 2015-2018 Chevrolet City Express [L4-2.0L], 2003-2008 Infiniti G35 [V6-3.5L], 2014-2018 Jeep Cherokee [V6-3.2L], and many Nissan models such as the 1994-2023 Nissan Altima [L4-2.4L/L4-2.5L/V6-3.5L] and 1998-2018 Nissan Frontier — see the Buyer's Guide tab for the full list of 101 applications.
Signs this gasket may need replacing include a hissing or ticking exhaust leak at the pipe flange, a stronger exhaust smell, or louder exhaust noise. If a failed flange gasket is the cause, this replaces it. Package quantity is one; applications use one per joint.
What does this gasket do?
It seals the bolted joint between two exhaust pipe flanges, keeping combustion gases inside the exhaust system instead of leaking at the connection.
Will this fit my vehicle?
It's a direct-fit replacement for 101 listed applications, including the Chevrolet City Express, Infiniti G35, Jeep Cherokee, and many Nissan models. Check the Buyer's Guide tab to confirm your exact vehicle and engine.
How many bolt holes does it have?
It has 2 bolt holes with a 4-1/8 in bolt-to-bolt length, and a 2-1/2 in inside diameter to match the flange joint it seals.
How many do I need?
The package contains one gasket, and the listed applications use one per exhaust flange joint. Confirm the number of joints on your vehicle before ordering.
What are the signs this gasket has failed?
A hissing or ticking exhaust leak at the pipe flange, a stronger exhaust odor, or louder exhaust noise. Diagnose the source before replacing, since other parts can cause similar symptoms.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
