Specifications

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UBS Wiring Harness Handbook
Main Harness with 48-inch Drop-Out for Double Trailer Connection
Part # Wire Sizes Length
66080
(1-10 gauge, 6-12 gauge) 35’
66070 (1-10 gauge, 6-12 gauge) 60’
66081 (1-8 gauge, 2-10 gauge, 4-12 gauge) 35’
66071 (1-8 gauge, 2-10 gauge, 4-12 gauge) 60’
Main Harness
Extends from front of trailer (nosebox or
receptacle), and provides sealed plug-in
connection to rear sill harness.
Part # Wire Sizes Length
66710
(1-10 gauge, 6-12 gauge) 35’
66310 (1-10 gauge, 6-12 gauge) 60’
66711 (1-8 gauge, 2-10 gauge, 4-12 gauge) 35’
66311 (1-8 gauge, 2-10 gauge, 4-12 gauge) 60’
Provides sealed plug-in connection to rear
sill harness. Drop out extends to receptacle
at rear of trailer. Blunt-cut, 7-conductor
cable. Only use with LED lighting.
Part # Wire Sizes Length
66701
(1-10 gauge, 6-12 gauge) 60’
66702 (1-8 gauge, 2-10 gauge, 4-12 gauge) 35’
Main Harness with 44-inch ABS Drop Out
Provides sealed plug in connection to rear sill
harness. Drop out extends to ABS universal
connector. Blunt cut, 7-conductor cable
Part # Details Length
66705
ABS Fault Light 12”
ABS Adapter Main Harness
Junction between main harness and rear sill harness. Provides
sealed plug in connection and a drop-out extension for ABS.