Parts for your 2006 Toyota Vitz|yaris-Exhaust gasket

2006 Toyota Vitz/Yaris Exhaust Gasket — What It Does and When to Replace It

Technical sources confirm the 2006 Toyota Vitz/Yaris does use exhaust gaskets. The Toyota Repair Manual for the XP90 series (Vitz/Yaris 2005–2010) specifies renewing the exhaust manifold gasket when the manifold is removed, and replacing the front pipe “donut” gasket when the spring-bolt joint is disturbed. Toyota’s Electronic Parts Catalogue for KSP90/NCP90/NCP91/NCP93 models also lists a multi‑layer steel manifold gasket and crush‑type exhaust pipe gaskets for these engines (e.g., 1KR‑FE, 2SZ‑FE, 1NZ‑FE), with part numbers varying by engine and market.

On this model, exhaust gaskets sit at key joins to keep the system sealed, quiet and safe. They prevent hot gases and fumes sneaking out near the engine bay and underside, which protects nearby components, avoids that annoying ticking on cold start, and stops false oxygen‑sensor readings that can mess with fuel trim.

• Cylinder head to exhaust manifold: multi‑layer steel gasket.
• Manifold/catalyst outlet to front pipe: spring‑bolt flange with a crush “donut” gasket.
• Mid and rear flanges (where fitted): flat or ring‑type gasket.

Purpose-wise, an exhaust gasket handles heat cycling, vibration and slight movement, maintaining a gas‑tight seal as the system expands and contracts. On the 2006 Vitz/Yaris, it helps keep performance and economy steady by ensuring the upstream O2 sensor sees accurate exhaust flow. A leaky gasket can trigger extra noise, a whiff of exhaust, soot marks at the joint, and sometimes a check‑engine light from lean readings or cat efficiency faults.

For servicing, these gaskets aren’t a timed replacement like oil or filters. Instead, they’re “replace on disturbance” items: any time a joint is undone—manifold off for engine work, or front pipe/muffler removed—the gasket should be replaced. If there’s a leak, don’t ignore it