Iseki TX1410 & TX1510 engine oil, fluids and capacities
Iseki TX1410 & TX1510 engine oil and fluids
Which oil goes into a Iseki TX1410 or TX1510, and how much? In this blog you'll find all fluid types and exact capacities from the original Iseki manual — engine oil, transmission oil, front axle, coolant and fuel. This way you always top up with the right type and the right amount.
Suitable for the entire series: TX1410, TX1410F (4WD), TX1510 and TX1510F (4WD).
Fluids and capacities in one overview
| Component | Fluid type | Capacity |
|---|---|---|
| Engine | Diesel engine oil | 3.0 liters |
| Transmission (gearbox) | Hypoid gear oil SAE 80 | 12.3 liters |
| Steering box | Hypoid gear oil SAE 80 / 90 | top up |
| Cone case (4WD only) | Hypoid gear oil | 0.7 liters |
| Front gear case (4WD only) | Gear oil SAE 80 / 90 | 0.25 liters × 2 locations |
| Cooling system (radiator) | Coolant / water | 4.8 liters |
| Fuel tank | Diesel (JIS #2–3) | 12 liters |
Engine oil
The K3A (TX1410) and K3B (TX1510) run on regular diesel engine oil, with a capacity of 3.0 liters. According to the maintenance schedule, you should change the engine oil every 100 operating hours, and at least once a year. Keep the level between the marks on the dipstick: too little oil leads to overheating and wear, too much oil can escape through the breather. When changing the oil, don't forget the copper sealing ring on the drain plug — this should be renewed each time to prevent oil leakage.
Transmission and hydraulic oil
The gearbox has by far the largest capacity, at 12.3 liters . Use hypoid gear oil SAE 80 for this. On these tractors, the transmission shares its oil with the hydraulic system, so a correct level and clean oil are important for a properly functioning lift. Change this oil according to schedule and regularly check for water or dirt contamination.
Front axle and steering box (4WD)
The four-wheel-drive TX1410F and TX1510F have extra lubrication points: the cone case (0.7 liters) and the front gear case (2× 0.25 liters), both using hypoid gear oil. These points are often overlooked in practice. A low level or moisture in the front axle leads to costly drivetrain damage — so check them during every major service. Top up the steering box with hypoid gear oil SAE 80 or 90.
Coolant
The cooling system has a capacity of 4.8 liters. Use a good-quality coolant with antifreeze and corrosion protection, and replace it once a year. Clean coolant prevents corrosion and thereby also indirectly protects the head gasket and the water pump. Check the coolant level before every workday — a habit that prevents overheating. Note: never open the pressure cap right after working, but wait about 10 minutes for the system to cool down; otherwise boiling water can spray out.
Fuel
The TX1410 and TX1510 run on regular diesel (referred to in the manual as JIS #2–3). The tank holds 12 liters. Keep the tank as full as possible — this limits condensation and water forming in the fuel, a common cause of starting problems in older diesels. When refueling, avoid filling it all the way to the brim, and make sure no dirt gets into the tank.
These tractors have the Mitsubishi K3 engine. More about the engine: Mitsubishi K3A–K3F engine: maintenance, oil and filters.
