However, the torque rating was higher and boosted the towing capability of this engine as well. When used on the same 20, the payload capacity was slightly lower. This is possible because of its unique high-speed automatic transmission. Payload Capacity They offer a maximum payload capacity of 4050 lbs for 20. For example, a standard 6.7 Cummins engine had an 850 lb-ft torque when used on a 20. They are always known to produce higher torque values when compared to the 6.4 Hemi for the same vehicle models.
Torque Produces a standard torque value of 429 lb-ft when tested on the 20. You should consider going for a Cummins engine if you would be towing more often. They also support an auto-level rear air suspension that helps adapt to changing loads or positions. They have an impressive towing capacity of 19780 lbs on a 20. However, towing a heavy load upwards along an inclined road for a long time would drastically limit the engine’s speed to about 35mph to avoid revving. Towing Capacity The maximum towing capacity was 16,320 lbs for the 20. Their durability makes them the best for towing trucks. More durable and has a maximum mileage of 350000 miles. However, their durability is improved if you avoid towing heavy loads frequently. Cost They are generally more expensive because of the high manufacturing costs Less expensive than the 6.4 Hemi engines Durability They are very durable and are expected to cover up to 250000 miles. Hence, they are best used in trucks that would be used to pull loads frequently. Suitable for use on heavy-duty trucks because it provides higher torque. They offer lower horsepower (370 hp) than the 6.4 Hemi for the same 20 model. It’s preferred for use by owners who are after faster engine and speed. For example, horsepower on a 20 was found to be 410 hp. 6.4 Hemi 6.7 Cummins Horsepower Usually has a higher horsepower compared to the 6.7 Cummins for specific vehicle’s type. You can also check out this comparison to clarify the differences discussed in the table below. The table below summarizes the major differences to consider.