| Engine oil & filter | SAE 0W-20 · ≈7.9 qt with filter · drain plug 30 ft-lb | Then every 10,000 mi / 12 months (Toyota); 5,000 mi in dusty or towing use | Cartridge filter under a plastic cap that's easy to round off. See the aluminum-cap swap above. Replace the cap O-ring with every change.Oil filter cartridge · RockAuto ↗Aluminum oil filter cap 15620-31060 · ToyotaPartsDeal ↗Oil drain plug gasket · RockAuto ↗ |
| Engine air filter | OE-type panel filter | Every 30,000 mi (Toyota); inspect every 5,000 mi on dirt roads | Check that the airbox lid seals and look for dust on the clean side.Air filter · RockAuto ↗OEM air cleaner diagram · ToyotaPartsDeal ↗ |
| Cabin air filter | OE-type | Clean at 15,000 mi, replace every 30,000 mi (Toyota) | Cabin air filter — 200 Series / Sequoia / Tundra (INTAF07010) · CruiserTeq ↗Cabin air filter · RockAuto ↗ |
| Spark plugs | 8 × OE-type iridium (3UR-FE) | Every 120,000 mi (Toyota); replace at purchase if the history is unknown and the truck is near that mileage | Check the spark-plug tube seals for oil while the coils are out.Spark plugs · RockAuto ↗Spark plug tube seal — 2UZ / 3UR · CruiserTeq ↗ |
| Coolant | Toyota Super Long Life Coolant (pink, pre-mixed) or equivalent · ≈17.1 qt system | First at 100,000 mi / 120 months, then every 50,000 mi / 60 months (Toyota) | Look for dried pink crust at the water-pump weep hole and fan bracket. See the water pump repair above.Coolant / antifreeze · RockAuto ↗Water pump · RockAuto ↗ |
| Automatic transmission | Toyota Genuine ATF WS · 8-speed AE80F ≈10.7 qt total fill | Toyota specifies replacement at 60,000 mi only for towing or heavy loads, otherwise inspection only. Most owners drain-and-fill at purchase. | There's no dipstick. The level is set at a specified fluid temperature through the overflow (check) plug. A drain-and-fill replaces only part of the fluid, so repeat it rather than pressure-flushing. 2008–2015 trucks use the 6-speed AB60F: confirm in manual for capacity.ATF WS-type transmission fluid · RockAuto ↗Transmission drain plug gasket (OPG30010) · CruiserTeq ↗OEM transmission case & oil pan diagram · ToyotaPartsDeal ↗ |
| Transfer case | Toyota Genuine Transfer Gear Oil LF, SAE 75W (owner-reported; AMSOIL's lookup lists no transfer-case spec) · confirm in manual for spec and capacity | Replace under Toyota's special operating conditions (dirt roads, towing); otherwise inspect. Change at purchase if there's no record. | Use the transfer-case oil your manual names; it is a light 75W oil, not ordinary 75W-90 gear oil. Toyota's guide lists replacement for dirt-road and towing use.Gear oil · RockAuto ↗OEM transfer case extension housing diagram (plugs & gaskets) · ToyotaPartsDeal ↗ |
| Front & rear differentials | Toyota Genuine Differential Gear Oil LT 75W-85 GL-5 · front ≈4 pt, rear ≈8.9 pt | Front every 15,000 mi and both at 30,000 mi when towing or heavily loaded (Toyota); otherwise inspect | Always crack the fill plug before draining. Fit new plug gaskets.Gear oil · RockAuto ↗Front diff drain plug with copper gasket (OP24014) · CruiserTeq ↗Front diff drain plug gasket (OPG24017) · CruiserTeq ↗ |
| Driveshaft grease points | Lithium chassis grease at every U-joint and slip yoke | Every 15,000 mi, with a propeller-shaft bolt re-torque (Toyota). Also after deep water. | Dry U-joints cause a clunk on stop and take-off. See the U-joint repair above.Greaseable U-joint (UJ35031) · CruiserTeq ↗ |
| KDSS | Sealed hydraulic system: no fluid service | At purchase and after any suspension work | Make sure both KDSS valves are closed (5 mm hex) and check the cylinders and lines for weeping. See the KDSS repair above.OEM front stabilizer / KDSS diagram · ToyotaPartsDeal ↗ |
| Power steering fluid | Dexron III-type ATF | Inspect the level and condition (Toyota); confirm in manual for the exact fluid | Look for wet hoses at the pump.Power steering fluid · RockAuto ↗Japanese aftermarket power steering pump (if leaking) · CruiserTeq ↗ |
| Brake fluid | DOT 3 (FMVSS 116) | Toyota lists inspection only. Flush at purchase if there's no record. | Brake fluid · RockAuto ↗ |
| Drive belt & tensioner | Serpentine belt with automatic tensioner | Inspect at 60,000 mi, then every 15,000 mi (Toyota) | Replace the belt if you're doing the water pump and the fan is already off.Drive belt — 2008–2019 URJ200 (BELTA2033) · CruiserTeq ↗Belt tensioner · RockAuto ↗ |
| 12 V battery | OE-size battery | Load-test at purchase | Weak batteries cause odd electronic faults on these trucks.Battery · RockAuto ↗Slee main battery tray upgrade · CruiserTeq ↗ |