Two valve cover gaskets.
The Honda Odyssey uses a V6 engine configuration—most models employ the 3.5-liter V6 from the J-series—so there are two valve covers on the engine, one on each cylinder head. Each cover has its own gasket, meaning a typical valve cover gasket service involves replacing two gaskets. This is standard across generations that use the V6 engine, though there have been different revisions within the J-series family; the two-cover setup remains the baseline.
Engine configuration and gasket count
To understand why the count is two, note that a V6 engine has two banks of cylinders, each covered by its own valve cover. Replacing valve cover gaskets typically requires replacing both seals.
- Two valve covers total: one for each cylinder bank (front and rear or left and right, depending on perspective).
- Each valve cover has its own gasket, so two gaskets are normally replaced as a pair during service.
- Replacement kits for the Odyssey valve covers often include two gaskets plus related seals or hardware, depending on the kit and year.
In short, the Honda Odyssey has two valve cover gaskets in its V6 configuration, regardless of generation. When performing maintenance or gasket replacement, plan to address both seals to ensure proper sealing and to avoid leaks.
Maintenance considerations
Maintenance steps, typical costs, and procedure specifics can vary by model year. Consult your service manual or a parts diagram for your exact VIN to confirm the correct gasket kit contents for your Odyssey.
Summary
Across the Honda Odyssey’s V6 engine lineup, there are two valve cover gaskets—one for each valve cover. This holds true across generations that use the 3.5-liter V6 (J-series), making valve cover gasket replacement a two-gasket job by default.