Parts for your 2005 Honda Odyssey-Head gasket

2005 Honda Odyssey head gasket — what it does and when to replace it

Yes, the 2005 Honda Odyssey absolutely uses head gaskets. Technical references include the 2005 Honda Odyssey Factory Service Manual (Engine—Cylinder Head section), Honda’s electronic parts catalogue for the J35A6/J35A7 engines (listing “Gasket, Cylinder Head”), and mainstream service information publishers (e.g., Haynes/Chilton and professional databases) — all of which detail head gasket specifications, torque sequences, and replacement procedures for this model.

On the J35A-series 3.5‑litre V6 fitted to the 2005 Odyssey, the head gasket sits between each cylinder head and the engine block, so there’s one per bank. Its job is to seal combustion pressure while keeping coolant and engine oil in their own passages. That tight seal protects compression, stops fluids mixing, and helps the engine run smoothly and efficiently.

A head gasket isn’t a scheduled service item