A forklift radiator is the engine cooling core on IC (internal-combustion) diesel, LPG and gasoline forklifts. It dissipates heat from coolant so the engine holds its operating temperature under load. Radiators come in copper-brass and aluminium-plastic construction and are matched by make, model, core size and inlet-outlet positions. ForkliftIQ supplies replacement radiators compatible with Toyota, Hyster, Yale, Crown, TCM, Komatsu and other major brands.
Replacement forklift radiators for IC engines compatible with Toyota, Hyster, Yale, Crown, TCM, Komatsu and most major brands. ForkliftIQ ships copper-brass and aluminium-plastic cooling cores factory-direct from verified suppliers, with OEM cross-reference support and a fast parts quote.
Radiator types & what they do
The radiator is the heart of a forklift's cooling system on internal-combustion trucks. Hot coolant leaves the engine, flows through the radiator core, and passes its heat to air drawn across the fins by the cooling fan. A stable coolant temperature protects the head gasket, cylinder head and bearings from heat damage during heavy lifting and long duty cycles.
Two core constructions dominate. Copper-brass radiators use soldered copper tubes and brass tanks; they are heavier, more robust and can often be re-cored or repaired, which suits older and heavy-duty diesel forklifts. Aluminium-plastic radiators pair aluminium cores with crimped plastic tanks; they are lighter, lower cost and common on many modern trucks. Electric forklifts do not use engine radiators, though some carry smaller coolers for hydraulics or battery systems.
Signs your forklift radiator needs replacing
Overheating is the clearest warning: a temperature gauge climbing into the red, coolant boiling over, or the engine losing power and going into a protection mode under load. Visible coolant leaks, green or orange staining on the core, and a low coolant reservoir that keeps dropping all point to a failing radiator or its tanks. Bent, clogged or corroded fins reduce airflow and cooling capacity even when there is no visible leak.
Other symptoms include a sweet coolant smell, white exhaust vapour, or frequent top-ups between services. Where a core is only partly blocked, a professional flush may help short-term, but cracked tanks, internal corrosion and split tubes call for replacement. Always let the engine cool before opening a cooling system.
How to identify the right radiator
The fastest path is the OEM radiator part number stamped on the tank or listed in your service manual. If that is missing, send us your forklift make, model, engine and the serial (or VIN) plate photo and we will cross-reference the correct fitment. Measuring the old radiator also lets us match by spec: record the core width, height and thickness, the number of rows or the fin count, the inlet and outlet diameters, and — critically — the positions of the inlet, outlet and mounting brackets. A core that fits the frame but has the ports on the wrong side will not plumb up correctly.
- Core width, height & thickness
- Rows / fin density
- Inlet & outlet diameter
- Inlet-outlet & bracket positions
- Cap type & pressure rating
- Copper-brass vs aluminium-plastic
Compatibility & sourcing
ForkliftIQ cross-references radiators across major brands, so a core built for one OEM unit can often be matched to an equivalent compatible part. Coverage spans Toyota, Hyster, Yale, Crown, TCM, Komatsu, Mitsubishi, Nissan, Caterpillar and common Chinese fleets such as Heli and Hangcha. We list parts as compatible with named brands; they are aftermarket replacements, not OEM-branded unless stated.
Aftermarket vs OEM: genuine OEM radiators carry the manufacturer's exact spec and branding, usually at a premium. Quality aftermarket radiators built to matching core dimensions and material offer strong value for wholesale and dropship buyers, provided the fitment is verified. We dropship worldwide on FOB or CIF terms and confirm core size, port positions and timing on your quote before shipping — rather than publishing dimensions we can't guarantee.
| Attribute | Copper-brass | Aluminium-plastic |
|---|---|---|
| Weight | Heavier | Lighter |
| Repairability | Re-core / solder repair | Usually replace |
| Typical use | Older / heavy-duty IC | Many modern IC trucks |
| Relative cost | Higher | Lower |
Frequently Asked Questions
How do I identify the right forklift radiator?
Match your forklift make, model and engine, then confirm the OEM radiator part number stamped on the tank or listed in the service manual. If it's missing, send us the core dimensions (width, height, thickness), the row/fin count and the inlet-outlet positions and we'll cross-reference the correct fitment.
What's the difference between copper-brass and aluminium-plastic radiators?
Copper-brass cores are heavier, repairable and favoured for older or heavy-duty IC forklifts. Aluminium-plastic radiators are lighter and lower cost, common on many modern trucks. We supply whichever type matches your original fitment or your preference.
Can you cross-reference a radiator by OEM number?
Yes. Give us the OEM radiator part number or the make, model and serial/VIN plate and we'll match an equivalent compatible aftermarket radiator. We list parts as compatible with named brands; they are aftermarket replacements, not OEM-branded unless stated.
How are radiators shipped and how long does it take?
We dropship worldwide on FOB or CIF terms from verified suppliers. In-stock items ship quickly; less common cores follow a roughly 4-6 week lead. We confirm fitment, tank positions and timing on your quote before dispatch.
Need this part fast?
Send the make, model, OEM number or a photo — we quote from a verified supplier network and ship worldwide.
Request Parts Quote →← All forklift parts