Mack Super liner Semi Truck. 1990 model heavy hauler super liner semi tractor truck. The engine is a 425 Caterpillar with 200 thousand original miles. The transmission is an 8 speed low low. This truck has a 55 ton fifth wheel and a 3 way PTO with a wet line. This Mack super liner semi truck also has 315 tires all around a Canadian spread and a ride that’s like new.