PPE Diesel 128060020 Heavy Duty PTO Side Covers GM Allison 1000 And 2000 Series Black PPE Diesel

2001-2016 Kit - comes with 2 covers, 12 Bolts, and 2 cover gaskets.

2017-2019 Kit - comes with 1 cover, 6 Bolts, and 1 cover gasket.

Made from cast aluminum, these covers add strength to center of the transmission case eliminating trans oil seepage at the mating surface.

Cooling fins double the surface area (60.74 sq. in.) when compared to stock (30.62 sq. in.), which increases heat dissipation from the transmission fluid.