Parts for your 2020 Honda Odyssey-Manifold gasket

2020 Honda Odyssey manifold gasket: what it does and when to replace it

Based on Honda’s Service Information for the 2018–2020 Odyssey (J35-series 3.5‑litre V6) and the Honda genuine parts catalogues for this model, the vehicle is fitted with both intake manifold gaskets and exhaust manifold gaskets. The service procedures for “Intake Manifold Removal/Installation” and “Exhaust Manifold Removal/Installation” specify replacing these gaskets, confirming they’re standard equipment on this model.

The manifold gaskets do the quiet but critical sealing work. Up top, the intake manifold gasket keeps unmetered air from sneaking past the manifold-to-head interface, so the engine’s air–fuel mix stays spot on and the idle remains smooth. Downstream, the exhaust manifold gaskets seal hot gases as they leave the cylinder head and head toward the catalytic converters, preventing ticking noises, fumes under the bonnet, and skewed oxygen-sensor readings.

For everyday servicing, manifold gaskets aren’t a regular wear item to replace on a schedule. Instead, they’re replaced when the manifold is removed, or when symptoms point to a leak. Honda’s workshop procedures call for new gaskets on reassembly, and a clean, flat mating surface with the correct torque sequence. Intake gaskets are typically moulded rubber or composite