Harbor Diesel and Equipment, Inc. primarily operates as the Southwestern Distributor of ZF Heavy Duty Off-High way and On-Highway Driveline Products, the Southern Cal ifornia Dealer for Capacity of Texas Trailer Jockeys an d Factory Authorized Full-Service Dealer for Cummins, C aterpillar (Truck and Marine), Detroit Diesel and John Deere Natural Gas On-Highway Engines. Here is the access to 7gb of data soon. Customers infor mation, w9 forms, detailed employee information, detail ed financial and