The C42 was updated in 2022 with deeper deck edge skirt increased in height by 1/2 in. to 3-7/8 in. in an effort to improve cut quality similar to the DC48, replaceable wear edges now standard, and updated blade drive gearbox assembly and gearbox cover mounting and sealing resulting in improved durability and quieter operation.
Each collection deck has a two-blade design with timed gearboxes turning the blades in a counter-rotating direction (both blades moving toward the center of the deck from the front) or reverse rotation (blades moving forward and circulating material to the back of the deck for collection in the discharge chute) on "R" decks. Collection decks are compatible with Walker Grass Handling (GHS) models S, C, T, and D and are designed specifically to catch grass and debris.