Parts for your 2002 Toyota Echo|yaris-Exhaust gasket

2002 Toyota Echo/Yaris exhaust gasket — what it does, why it matters, and how to look after it

Yes, an exhaust gasket is fitted to the 2002 Toyota Echo/Yaris (XP10, 1NZ‑FE). Toyota’s service literature specifies replacing the exhaust manifold gasket when the manifold is removed and using a compressible pipe “donut” gasket at the spring‑bolt joint ahead of the catalytic converter. The Toyota Electronic Parts Catalog for NCP10/NCP12 lists gasket, exhaust manifold (commonly 17173‑21010) and gasket, exhaust pipe (donut types such as 17451‑21050/17451‑21060), and Australian workshop manuals (e.g., Gregory’s/Toyota Repair Manual, Engine Mechanical—Exhaust Manifold and Exhaust Pipe sections) direct that these gaskets are single‑use sealing components.

The exhaust gasket on a 2002 Echo/Yaris is there to keep the hot gases where they belong—inside the exhaust—so the little 1NZ‑FE runs quietly and efficiently. Up front there’s a multi‑layer steel manifold gasket between the cylinder head and manifold, and further back a crushable donut gasket at the spring‑loaded flange that joins the front pipe/catalyst to the manifold outlet. Some models also use a flat gasket at rear flanges. Together they prevent leaks, keep oxygen out (which would upset fuel trims), and stop fumes sneaking into the cabin.

As part of routine servicing, it’s smart to inspect for soot marks around joints, listen for a ticking “puff” on cold start, and take note of any exhaust smell or drone. There isn’t a set replacement interval