Shop Roadmaster 153789 with Smart Diodes for multiplex LED towed vehicles. Includes 27 ft harness and protects vehicle electronics during towing.
Out of stock
Roadmaster 153789 Smart Diode Wiring Kit is designed specifically for towed vehicles equipped with multiplex wiring and LED taillights. The kit includes two Smart Diodes, a 27-foot four-wire harness, connectors, split loom, and mounting hardware to integrate motorhome lighting signals with the vehicle’s factory taillights. Smart Diodes regulate variable-voltage lighting systems while preventing harmful electrical feedback to vehicle electronics. || This kit is ideal for modern vehicles that use multiplex lighting circuits where standard diodes cannot properly distinguish between brake and running light signals. The included Smart Diodes ensure factory taillights illuminate correctly for brake, turn, and running light functions while towing behind a motorhome. || Heavy-duty 85-amp-rated diodes provide durable protection for sensitive computer modules in both the RV and towed vehicle. The system delivers a clean OEM-style appearance by utilizing existing taillights rather than adding external lights.
| Brand | Roadmaster |
|---|---|
| Model | Smart Diode Kit |
| MPN | 153789 |
| Product Type | Towed Vehicle Wiring Kit |
| Material | Copper Wiring |
| Finish Color | Multi Color |
| Dimensions | 27 ft Harness |
| Weight (lb) | Not Published |
| Load Capacity | Not Published |
| Drawer Count | Not Published |
| Drawer Type | Not Published |
| Lock Type | Not Published |
| Mount Type | Hardwired |
| Installation | Vehicle Wiring |
| Compatibility | Multiplex LED Vehicles |
| Use Case | Flat Towing |
| Warranty | Not Published |
| Country of Origin | USA |
| Series | Smart Diode |
| UPC | 758306321830 |
Deliver in 3-5 business days
30 days return policy
Secure Payment at checkout
We are always here.
© 2026 Sports and Wheels
Reviews
There are no reviews yet.