Also listed as AC04121-21752 AC 04121-21752 AC0412121752 AC 0412121752 ALLIS CHALMERS/TUSK04121-21752 ALLIS CHALMERS/TUSK 04121-21752 ALLIS CHALMERS/TUSK0412121752 ALLIS CHALMERS/TUSK 0412121752 AC412121752 ALLIS CHALMERS/TUSK412121752 AC 412121752 AC 4121-21752 ALLIS CHALMERS/TUSK 4121-21752 AC4121-21752 ALLIS CHALMERS/TUSK4121-21752 4121-21752 4121-21752 412121752 0412121752