Soak up engine movement and keep your exhaust sealed with the AP Exhaust Exhaust Pipe / Flex Coupling (MPN 18212). This flexible exhaust coupling drops in as a direct-fit replacement for the 2015-2020 Ford F-150 with the V6-2.7L and V6-3.5L engines, plus the 2018 Ford F-150 with the V6-3.3L. It provides the flexing section of exhaust pipe that allows the system to move with the engine while carrying spent gases downstream.
What it does: A flex coupling lets the exhaust pipe absorb engine rock, thermal expansion, and driveline vibration so the connection stays intact and leak-free.
Signs this part may need replacing include an exhaust leak, a rattling or hissing noise near the flex section, or cracked, torn flex braid. If a failed flex coupling is the cause of your exhaust leak, this replaces it — diagnose the source of the leak before ordering.
What is this part?
It is an AP Exhaust exhaust pipe flex coupling (MPN 18212) — the flexible section of exhaust pipe that lets the system move with the engine while carrying exhaust gases.
What vehicles does it fit?
It is a direct-fit replacement for the 2015-2020 Ford F-150 (V6-2.7L and V6-3.5L) and the 2018 Ford F-150 (V6-3.3L). Confirm fitment for your vehicle in the Buyer's Guide tab.
What does a flex coupling do?
It provides a flexible pipe section that absorbs engine movement, thermal expansion, and vibration, helping keep the exhaust connection sealed and reducing stress on nearby joints.
How many do I need?
The listed applications use one unit per application (Quantity Per Application: 1).
What are signs it may need replacing?
Common signs include an exhaust leak, a rattle or hiss near the flex section, or cracked or torn flex braid. Diagnose the source of the leak before replacing.
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.
