Add to Cart Peterbilt 388 389 DPF Cover Drop Kit By RoadWorks RoadWorks MSRP: Now: $434.99 Was: Peterbilt 388 389 DPF Cover Drop Kit By RoadWorks *Does Not Fit Glider DPF Cover Drop Kit Fits Peterbilt 388 And 389 Models With Kenworth Style DPF Box (2018 & Newer) Lowers the DPF Cover to Accommodate 3" Tall Cab Panels Material: Stainless... MSRP: Now: $434.99 Was: Add to Cart