reese hitches
Reese Hitches 78118 Wiring Adapter
- SKU:
- 18715002
- MPN:
- 78118
- Availability:
- Usually ships the same or next business day. In stock at our MI, PA, WA warehouses.
- Shipping:
- Calculated at Checkout
- Stock Update:
- 02/20/2026 06:57:11 PM PST
Bulk discount rates
Below are the available bulk discount rates for each individual item when you purchase a certain amount
| Buy 2 | and pay only $32.75 each 32.75 |
| Buy 3 | and pay only $30.47 each 30.47 |
| Buy 4 | and pay only $29.68 each 29.68 |
| Buy 5 or above | and pay only $27.77 each 27.77 |
- Stock Update:
- 02/20/2026 06:57:11 PM PST
Description
This item is brand-new, factory sealed.
Reese Towpower 78118 Professional Wiring Adapter, 7-Way Blade to 4- or 5-Way Flat, LED Circuit Tester- DIMENSIONS: 6.5 x 2.7 x 2.5
- VEHICLE-TO-TRAILER WIRING: Adapts any popular vehicle wiring system to your trailer, converting an OEM 7-way blade connector to a standard 4- or 5-way flat connector.
- BUILT-IN LED TESTER: Circuit tester instantly checks electrical circuit for connectivity and displays the status using high-visibility cool blue LEDs so you can adapt the trailer to vehicle quickly and confirm the connections are correct.
- DURABLE CONSTRUCTION: The REESE Towpower Professional Writing Adapter is built with long-lasting corrosion-resistant terminals and tin-plated contacts.
- ATTACHED DUST-COVER: Tethered dual-use dust cover keeps terminals clean and protected when not in use towing a trailer.
- Manufacturer: Towpower
- Brand: Reese
- Model: 78118
- Item Weight: 4 ounces
- Product Dimensions: 6.99 x 2.9 x 1.9 inches
- Country of Origin: Taiwan
- Item model number: 78118
- Is Discontinued By Manufacturer: Yes
- Exterior: Smooth
- Manufacturer Part Number: 78118
The REESE Towpower Professional Wiring Adapter is a heavy-duty vehicle-to-trailer device that adapts any popular vehicle wiring system to your trailer by converting an OEM 7-way blade connector to a standard 4- or 5-way flat connector. Boasting a built-in tester that instantly checks electrical circuit for connectivity, this device displays the status using high-visibility red LEDs so you can adapt the trailer to vehicle quickly and confirm the connections are correct. This durable adapter is built with corrosion-resistant terminals and tin-plated contacts for an extra long life. When the device is not in use towing a trailer, an attached dust-cover helps keep the terminals clean and protected.
Warranty Information
