Multiquip 48401 Main Wiring Harness - OEM Replacement Part for Power Trowels

The main wiring harness serves as the central electrical distribution system for the MD105 power trowel, routing power and control signals between critical components including the machine controller, relay box, hydraulic cooler fans, lighting system, horn/cruise control, and power distribution module. This harness interfaces with the bus bar at the main power post and connects to multiple systems through designated connectors including the DT06-12SA 12-pin connector and various junction points labeled throughout the electrical architecture.

Technical specifications from Multiquip engineering documentation show this harness utilizes 18 AWG RD/BK wire for hydraulic cooler circuits, 14 AWG RD/YL for lighting relay feeds, and 4 AWG conductors for high-current battery connections to left and right hydraulic coolers. The harness integrates with connector part numbers 19044-0160, 34822-0013, and relay box assembly 19069-0241. Critical safety note: the horn circuit routed through this harness must never be disabled or disconnected, as operating the trowel without horn functionality can result in serious machine damage.

This harness is essential for complete electrical system operation and should be inspected regularly for chafing, connector corrosion, or wire damage near high-heat areas like hydraulic components.

Compatible with the following Multiquip models:

• MD105

Genuine Multiquip OEM part, sold by an authorized dealer.