• Roadmaster Towed Vehicle Wiring Kit 153782 Diodes
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Roadmaster

Roadmaster Towed Vehicle Wiring Kit 153782 Diodes

Roadmaster Towed Vehicle Wiring Kit 153782 Diodes

$111.90 USD
MSRP $120.90 USD Our price $111.90 USD
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Why buy from RV Towing Pros

  • Genuine new partsBrand-new Roadmaster, never used or refurbished
  • Fit GuaranteeSend us your vehicle and we’ll confirm fit before you order. How it works
  • Ships in 5–8 business daysIn-stock parts; express available at checkout
  • Secure checkout & 30-day returnsPay with card, Shop Pay, PayPal and more

Questions? Message us — we answer within 1 business day.

Shipping & Returns

In-stock parts: standard shipping 5-8 business days, express available at checkout. Out-of-stock and special-order parts: 3-5 weeks. Returns accepted within 30 days of delivery (20% restocking fee; buyer pays return shipping unless we made an error).

Fit Guarantee: if you sent us your vehicle details before ordering and we confirmed fit, but the part doesn't fit, we cover return shipping and waive the restocking fee.

Questions? Message us — we answer within 1 business day.

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Product Description

The Roadmaster 153782 is a towed-vehicle wiring kit with Smart Diodes, for towed vehicles with incandescent (standard bulb) taillights. It lets the towed vehicle's own taillights show the motorhome's turn, brake and running light signals while flat towing, and the diodes prevent current from feeding back into either vehicle's electrical system.

Many newer vehicles use multiplex (variable-voltage) lighting, where one wire carries more than one signal. With ordinary diodes, those vehicles can show the brake lights whenever the running lights are on. Smart Diodes adjust the voltage so only the intended circuit lights up. Each vehicle needs two Smart Diodes, and this complete kit includes both plus the harness and supplies to run the wiring from the front of the towed vehicle to the taillights.

Vehicles with LED taillights need the LED version of this kit (Roadmaster 153789). If you're not sure which your vehicle has, contact us with the year, make and model.

Specifications

  • Manufacturer: Roadmaster
  • Part number: 153782
  • Type: Towed-vehicle wiring kit with Smart Diodes
  • For: Incandescent bulb taillights
  • Diode rating: 5 amp
  • Warranty: Roadmaster lists a limited 1-year warranty

What's Included

  • 2 Smart Diodes
  • Wiring harness to run from the front of the vehicle to the taillights
  • Split loom, ring terminals and other installation supplies

Helpful Links

Pro tipWiring and battery tips

  • Protect the car’s wiring. Diodes or a separate bulb kit keep the motorhome’s lighting signal from feeding back into the towed vehicle’s electrical system.
  • Watch the battery. Some vehicles drain their battery when flat towed; the owner’s manual will say whether you need a charge line or battery disconnect.

Not sure what fits? Send us your vehicle — we’ll confirm before you order.

Our Fit Guarantee Tell us your vehicle before you order and we’ll confirm the part fits. If we confirmed it and it doesn’t fit, we’ll cover return shipping and waive the restocking fee. Check my fit

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