Parts for your 1991 Toyota Hilux surf-Timing belt kit

1991 Toyota Hilux Surf timing-belt-kit — what it is, which engines use it, and when to replace

Referencing Toyota factory literature and major parts catalogues, a timing-belt-kit is relevant on most 1991 Toyota Hilux Surf variants. The 2.4L turbo-diesel 2L‑TE, the 2.8L diesel 3L, and the 3.0L petrol V6 3VZ‑E all run a toothed timing belt (Toyota Repair Manuals for 2L/3L Diesel and 3VZ‑E, Toyota EPC, Gates and Aisin AU/NZ application guides). The 2.4L petrol 22R‑E, however, uses a timing chain, so a timing-belt-kit isn’t applicable to that specific engine. Where a chain is fitted (22R‑E), it runs in an oil bath with guides and a hydraulic/mechanical tensioner rather than a service-interval rubber belt—so the maintenance path is different and a timing-belt-kit isn’t used.

For Hilux Surf models that are belt-driven, the timing-belt-kit keeps the camshaft(s) and crankshaft perfectly in sync, so the valves and pistons play nicely together. It’s the heart of the engine’s rhythm: if the belt slips or snaps, the engine will stop on the spot, and on some variants there’s a real risk of internal damage—so this is a do-it-on-time job, not a wait-and-see.

In Aussie and Kiwi conditions, a sensible change interval is every 90,000–100,000 kilometres or 5 years (whichever comes first). Toyota schedules for the era generally land in that window—many owners opt for the shorter end if the vehicle tows, works hard off‑road, or sees lots of heat cycles. Oil leaks, belt glazing or cracking, chirps from the front of the engine, or a wandering idle after cold start are all nudges to bring the job forward.

A quality timing-belt-kit typically includes the belt, idler(s), tensioner (mechanical or hydraulic as per engine), and front cam/crank seals, many owners sensibly add a water pump at the same time to avoid doubling up on labour.

• What’s usually included: timing belt, tensioner, idler(s), cam and crank seals, and often the water pump and thermostat.
• Smart add-ons during the job: drive/accessory belts, fresh coolant, and a new radiator cap if the water pump is replaced.

Good practice under the bonnet: confirm timing marks with paint and the service manual, torque the tensioner hardware properly, rotate the engine by hand to re-check timing after tensioning, and always keep oil and coolant off the new belt. Once done, jot the mileage/date under the bonnet so the next service is a breeze.

• How often should the 1991 Hilux Surf timing belt be replaced?
  Most owners in Australia and New Zealand stick to every 90,000–100,000 km or 5 years. If it tows, works off‑road, or sees high heat, lean towards the earlier end. Always check the schedule for your specific engine (2L‑TE, 3L, or 3VZ‑E).
• Which 1991 Hilux Surf engines have a chain instead of a belt?
  The 2.4L petrol 22R‑E uses a timing chain, so a timing-belt-kit doesn’t apply. The 2L‑TE, 3L, and 3VZ‑E use belts and do require periodic replacement.
• What happens if the belt fails?
  The engine will stop immediately. On some variants, internal damage is possible, so it’s treated as critical maintenance. Replacing the belt, tensioner, idlers, and seals on time is far cheaper than a top-end rebuild.