Big Rig Defense Aluminum Wheel Wacker. This aluminum tire thumper is built to hold up to daily fleet use better than wooden or plastic versions. At 18" long, it reaches inner duals and tandem tires while staying short enough to stow under a seat or in a

Great savings on Big Rig Defense Aluminum Wheel Wacker. This aluminum tire thumper is built to hold up to daily fleet use better than wooden or plastic versions. At 18" long, it reaches inner duals and tandem tires while staying short enough to stow under a seat or in a . Verified by the community. Valid as of 8/11/2026.