Certain engines for the 2021 Chevrolet Silverado 1500 received an increase in their towing capacity for the new model year, namely the GM 2.7L L3B four-cylinder and GM 3.0L LM2 inline-six Duramax diesel. But while GM managed to stretch the tow capacity of these Chevrolet Silverado 1500 engines, when equipped with the GM 6.2L L87 V8, the truck actually lost some of its maximum rating.
The towing capacity of the 2021 Chevrolet Silverado with the range-topping 6.2L L87 V8 engine and 10-speed automatic transmission is 13,300 pounds – down 100 pounds when compared to an identically equipped 2020 Chevrolet Silverado. As a reminder, the 6.2L L87 V8 engine is rated at 420 horsepower and 460 pound-feet of torque in the 2021 Chevrolet Silverado, where it is offered exclusively with a GM 10-speed automatic transmission and four-wheel drive. The engine is available as an option on the Silverado LT Trail Boss, Trail Boss, RST, LTZ and High Country trim levels.
|RPO Code||Engine||2020 Silverado (lbs / kg)||2021 Silverado (lbs / kg)||Difference (2021 vs 2020)|
|LV3||4.3L V6||7,900 / 3,583||7,900 / 3,493||0|
|L3B||2.7L I4 Turbo||7,000 / 3,175||9,600 / 4,354||+2,600 / +1,179|
|L82||5.3L V8 AFM||10,000 / 4,536||10,000 / 4,536||0|
|L84||5.3L V8 DFM||11,600 / 5,216||11,500 / 5,262||-100 / -45|
|LM2||3.0L I6 Turbo-Diesel||9,300 / 4,218||9,500 / 4,309||+200 / +91|
|L87||6.2L V8 DFM||13,400 / 6,033||13,300 / 6,078||-100 / -45|
GM Authority reached out to General Motors for an explanation, and the automaker stated that “when packaging changes and content is added, that sometimes leads to adjustments in specs such as towing capacity.”
The automaker was able to squeeze 2,600 pounds of additional towing capacity out of the four-cylinder 2021 Chevrolet Silverado after additional testing and validation revealed that it “possesses better-than-expected cooling performance.” Meanwhile, the towing capacity for the 3.0L LM2 diesel jumped by 200 pounds due to the Silverado’s better-than-expected rear axle durability.
A number of other changes have also been applied to the 2021 Chevrolet Silverado – the most notable of which is the addition of the new Multi-Flex tailgate. The Chevrolet tailgate is the same as the MultiPro multi-position tailgate offered on the GMC Sierra and allows owners to get even more usability out of their pickup’s bed.