Western Star Bodybuilder Book: Revision 3.2a 1A Electrical Harness Information P. 1A-6 b Cab Overhead Harness Front Wall / Sleeper Mod 287 T.o.C. Chassis Main CIC Harness Chassis Optional Main Cab Harness Mod 44Y Mod 320 EOF Lighting Mod 30J Frontwall Harness Mod 321 Sleeper Cab Harness Engine Harness Mod 287 Axle Wiring Mod 286 Mod 87S Aft Chassis Harness Mod 28A Main Chassis Harness Mod 288 Floor Harness Mod 287 Hood Harness Mod 28C 4700 ENH Day Cab Hood Harness Mod 28C 4700 ENH Sleeper Cab Models: 4700 ENH Models: 4700 ENH