• Demco 9523057 Diode System Combo Kit – Flat Tow Wiring & Accessory Kit
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Demco

Demco 9523057 Diode System Combo Kit – Flat Tow Wiring & Accessory Kit

Demco 9523057 Diode System Combo Kit – Flat Tow Wiring & Accessory Kit

$398.90 USD
MSRP $445.19 USD Our price $398.90 USD
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Why buy from RV Towing Pros

  • Genuine new partsBrand-new Demco, 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 Demco 9523057 Diode System Combo Kit bundles the wiring and tow bar accessories most flat-tow setups need into one package. It combines a diode wiring kit for the towed vehicle's taillights, a 6-way coiled lighting cable, a 7-to-6-way adapter for the motorhome, a three-pin locking kit and a vinyl tow bar storage cover. It's a convenient way to finish a new Demco tow bar setup or replace several worn accessories at once.

The diode kit lets the motorhome's running lights, turn signals and brake lights operate the towed vehicle's own taillights, while the diodes block electrical feedback between the two vehicles. The coiled cable carries the signal between the motorhome and towed vehicle, and the 7-to-6 adapter plugs into a 7-way RV blade socket on the motorhome so the 6-way cable can connect.

Specifications

  • Manufacturer: Demco
  • Part number: 9523057
  • Application: Flat towing a vehicle behind a motorhome
  • Wiring type: Diode system using the towed vehicle's existing taillights
  • Cable: 6-way coiled lighting cable
  • Adapter: 7-way RV blade to 6-way round

What's Included

  • Demco 9523010 towed vehicle taillight diode kit
  • Demco 9523006 6-way coiled lighting cable
  • Demco 9523053 7-to-6-way RV adapter
  • Demco 9523068 three-pin locking kit
  • Demco 9523042 vinyl tow bar storage cover

Wiring needs vary by vehicle. Some vehicles need additional parts such as a bulb socket kit or relay, so check your towed vehicle's wiring before ordering, or contact us so we can help.

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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