| Engine oil & filter | 1KZ-TE: 7.7 L with filter, SAE 5W-40, API SL/CF · 5VZ-FE V6: 5.2 L with filter · 3RZ-FE 2.7: 5.4 L with filter (Penrite lookup) · petrol oil grade confirm in manual | Every 6,000 mi or 12 months (6 months in severe use) | Roughtrax's UK schedule. Replace the sump-plug washer every time.NTK oil filter, 1KZ Hilux/Prado · HD Automotive ↗Genuine sump plug washer, Prado/Hilux · HD Automotive ↗ |
| Engine air filter | Panel element | Inspect at every oil change; more often on dusty trails | A diesel that breathes dust wears fast. Check the airbox seals too.NTK air filter, Prado 1KZ KZJ95 · HD Automotive ↗ |
| Fuel filter (diesel) | Diesel filter with water separator confirm part by frame number | Every 12,000 mi or 12 months | Drain the water trap whenever the warning light comes on, and after filling from a questionable source. |
| Timing belt, tensioner & water pump | 1KZ-TE: belt, tensioner pulley, hydraulic tensioner, seals · 5VZ-FE: belt 13568-69095 (4Runner part) · 3RZ-FE: chain | 1KZ-TE: 100,000 km or 5–6 years (HD Automotive); Roughtrax says 60,000 mi or 60 months · 5VZ-FE: about 90,000 mi | If there's no receipt, do it now and replace the water pump at the same time.Major front service kit, 1KZ (belt, tensioners, seals, water pump) · HD Automotive ↗Toyota timing belt 13568-69095 (5VZ-FE) · ToyotaPartsDeal (OEM) ↗ |
| Coolant, radiator & hoses | 9.5 L (11 L with rear heater) · Toyota red or blue Long Life Coolant | Every 36,000 mi or 36 months | On a 1KZ-TE, also replace the small turbo coolant hoses and check the viscous fan hub. The automatic's cooler is inside the radiator, so a leak here can contaminate the ATF.Genuine thermostat and gasket, 1KZ/1KD · HD Automotive ↗Koyorad radiator, KZJ95 automatic · HD Automotive ↗ |
| Automatic transmission fluid | 3.0 L per drain-and-fill, 10.1 L dry · Dexron II/III or Toyota T-IV (Roughtrax lists these as guidance only) | Then per the owner's manual confirm in manual | Look for pink, milky fluid (coolant from the radiator cooler) before you do anything else. Do repeated drain-and-fills rather than one flush. |
| Manual gearbox | 2.2 L, SAE 75W-90, API GL-4 or GL-5 | Every 24,000 mi or 24 months | An IH8MUD member cautions that if a GL-5 oil isn't labeled safe for yellow metals, you should use GL-4 in the gearbox. |
| Transfer case | 1.2 L, SAE 75W-90, API GL-4 or GL-5 | Every 24,000 mi or 24 months | Full-time case with a center lock. Check that the lock engages and that its dash light comes on. |
| Front & rear differentials | 75W-90 GL-4/5 · front 1.1 L · rear 2.9 L (open or locker), or 2.6 L of LSD-rated hypoid oil if you have an LSD | Front every 36,000 mi · rear every 18,000 mi | If the rear has run low it can clunk in reverse. Check the inner axle seals while you're there.Rear axle overhaul kit, 9x semi-float (RAKLJ7X9X) · CruiserTeq ↗ |
| Power steering fluid | 0.8 L, Dexron II/III ATF | Refresh if dark | An IH8MUD member notes Toyota sells a pump seal kit (04446-60091) for the diesel's power-steering pump. |
| Brake & clutch fluid | 1.2 L, DOT 3 or DOT 4 (SAE J1703/4) | Brakes every 18,000 mi · clutch every 24,000 mi | Rear discs on every Prado. Front rotors are the 4Runner V6 part 43512-35210.Front brake rotor, 9x Prado (BRR35210) · CruiserTeq ↗Front brake pads, 9x Prado (BR35280) · CruiserTeq ↗ |
| Propshaft grease points | Lithium-base NLGI No. 2 | Every 6,000 mi or 6 months (3,000 mi or 3 months in severe use) | Grease the U-joints and slip yokes.Red-i hi-temp and moly grease kit · CruiserTeq ↗ |
| Lower ball joints & CV boots | Inspect; genuine Toyota 43340-39465 / 43330-39585 if replacing | Inspect at every service (AustralianCar.Reviews) | Replace any joint with play or a torn boot, and replace them anyway if there's no record. Toyota's split CV-boot kit can be fitted without removing the driveshaft.555 lower ball joint, LH (SUS39465L) · CruiserTeq ↗555 lower ball joint, RH (SUS39585R) · CruiserTeq ↗ |