C/M Semi-Truck Designs. 2026

C/M Semi-Truck Designs. 2026

NON-FLAT

North American International:

Sleeper Cab or No

Tow rating. 50,000lbs or less

Tow rating. 75,000lbs or less

Tow rating. 100,000lbs maximum

FLAT

Flat-Truck International:

Sleeper Cab or No

Tow rating. 50,000lbs or less

Tow rating. 75,000lbs or less

Tow rating. 100,000lbs maximum 

CYPRESS HEAVIES 2026

Semi-Truck + Trailer. Cargo Bus. Tour & Industrial Bus. School Bus. Retrofit-Kit conversion

SEMI-TRUCK & TRAILER 

Semi-truck engines typically range from 400 to 600 horsepower (hp). These engines are designed for heavy-duty applications and offer significantly more power and torque than typical passenger car engines. 
Here's a more detailed breakdown:

• Average HP:

Most semi-truck engines fall within the 400-600 hp range. 

• Torque:

Along with horsepower, semi-truck engines also generate substantial torque, typically between 1,000 and 2,000 lb-ft. 

• Engine Size:

Semi-truck engines are much larger and heavier than car engines, often being up to six times bigger in both size and weight. 

• Diesel Engines:

Semi-trucks primarily use diesel engines, which are known for their ability to deliver both high horsepower and strong torque, as well as better fuel efficiency. 

• Cummins Engines:

Cummins is a popular engine manufacturer for semi-trucks, offering various models with horsepower ranging from 400 to 600, according to Cummins. 

• Specific Examples:

• The Mack MP8 engine, found in the Mack Anthem, can deliver up to 505 horsepower and 1,860 lb-ft of torque. 

• The Detroit DD16 engine is designed for heavy loads and can produce up to 600 horsepower, according to Demand Detroit. 

• The PACCAR MX-13 engine, used in Kenworth trucks, can produce 405-510 HP and 1,550-1,850 LB-FT of torque. 

• Peterbilt offers trucks with engines like the X15 Performance, which can deliver 485 to 605 hp and 1650 to 2050 lb-ft of peak torque. 

CIG