Parts for your 2000 Toyota Bb-Timing belt kit

2000 Toyota bB Timing-Belt-Kit — Is It Used?

For the 2000 Toyota bB (NCP30/NCP31/NCP35), a timing-belt-kit isn’t relevant. This model runs Toyota’s NZ-series petrol engines — the 1.3L 2NZ‑FE and 1.5L 1NZ‑FE — which use a timing chain, not a belt. Technical sources including Toyota’s Engine Mechanical manuals for the 1NZ‑FE/2NZ‑FE and the Toyota Electronic Parts Catalogue confirm a chain-driven valvetrain with a hydraulic tensioner and chain guides, not belt pulleys. Typical EPC listings show timing chain p/n 13506‑21020 and chain tensioner p/n 13540‑21010 for these engines, underscoring that no timing-belt or belt kit applies.

Why no timing-belt-kit? The NZ-series engines were engineered with a duplex timing chain enclosed under a sealed timing cover, lubricated by engine oil and tensioned automatically. Unlike belts, chains aren’t a scheduled replacement item and are intended to last the life of the engine when serviced with clean oil. That’s why there’s no manufacturer interval for a timing-belt change on the 2000 bB — there simply isn’t a belt to replace.

Owners looking after a 2000 Toyota bB should focus on chain health by keeping oil changes regular and high quality. Under local conditions, using the right grade and changing oil and filter on time helps prevent chain stretch and tensioner issues. If the chain ever does wear, signs can include a rattling noise on cold start, cam/crank correlation faults (e.g., P0016), rough idle, or sluggish performance. In that case, a technician may recommend replacing the chain, guides and tensioner as a set — a different job to a belt swap and one that’s best handled with proper timing tools and specs.

• What to service instead of a timing-belt-kit: engine oil and filter (on time, every 10,000 km or as suited to use), the VVT-i oil control valve filter, and the accessory drive belt under the bonnet.
• Technical references: Toyota 1NZ‑FE/2NZ‑FE Engine Mechanical (EM) repair manual sections, Toyota EPC for NCP30/31/35 bB showing timing chain components (e.g., chain 13506‑21020, tensioner 13540‑21010, guides 13559‑21010/13561‑21010).

Popular questions about the 2000 Toyota bB timing-belt-kit

Does a 2000 Toyota bB have a timing belt or a chain?
It has a timing chain. Both the 1NZ‑FE (1.5L) and 2NZ‑FE (1.3L) engines in the bB use a chain with a hydraulic tensioner, so there’s no timing-belt-kit fitted from factory.

When should the timing chain be replaced on a 2000 bB?
There’s no routine replacement interval. The chain is replaced on condition — typically if there’s rattle on start-up, correlation fault codes, poor running, or confirmed stretch. Good oil and filter changes go a long way to keeping it happy for high kilometres.

I found a “timing-belt-kit” online for a 2000 bB — will it fit?
It won’t apply to the NZ-series bB. Some listings are generic or intended for other Toyota models that do use belts. For the 2000 bB (NCP30/31/35), the correct setup is a timing chain system, not a belt kit.