How a Semi Works: The tractor’s fifth wheel locks onto the trailer’s kingpin. The trailer’s weight is shared between the Tractor rear axles and the Trailer axles. Engine power moves both as one unit.

This design allows:

• Very heavy loads.
• Easy trailer swapping.
• Efficient long-distance hauling.

Most Semi Trucks use diesel engines because diesel engines provide:

• High torque at low RPM.
• Better fuel efficiency under heavy load.
• Long engine life (often 1 million+ miles).

Perfect for hauling 80,000 lbs. (36,000 kg) or more.

Dura-Lite makes heavy-duty radiators specifically for semi trucks and commercial vehicles – these are direct replacements for OEM radiators on big rigs.

Dura-Lite radiators for semi trucks are stocked and shipped from multiple Distribution Warehouses in both the United States and Canada, which helps improve availability and delivery times.

Our heavy-duty truck radiators for semi trucks are often eligible for same-day shipping if the order is placed before the daily cut-off time and the part is in stock at one of our Distribution Warehouses.

Find out more...