Product Description
The MB QUART 4 CHANNEL RELAY BANK is available now from Knobtown Cycle, your Kansas City motorcycle parts specialists.
Key Features
- Four 20 A circuits that are Plug-and-Play and controlled by the GMR7V1 Source Unit part # 4405-0978 (sold separately)
- Allows users to easily add, wire, and control any switchable 12 V accessory in their vehicle
- Quickly and easily know which fuse is blown via the glowing LED indicator that will light as long as a load is still connected to the circuit
Product Specifications
- Part Number: 20500559
- Brand: MB QUART
- Weight: 0.80 lbs
Professional Installation Available
Buy online or visit our Kansas City showroom. Contact us for installation service options! Free Ship to Store!
Part Locations
| Location |
Available |
| Wisconsin (WI) |
19 |
| New York (NY) |
8 |
| Texas (TX) |
15 |
| Nevada (NV) |
10 |
| North Carolina (NC) |
13 |
| National Total |
20+ |
Stock levels last updated: January 30, 2026 8:09 PM
Professional Installation Available
Knobtown Cycle offers professional installation services. Contact us via a service request to learn more.
Thank you for Shopping at Knobtown Cycle!
When you shop with us, you’re not just buying motorcycle parts — you’re supporting a small, family-run business rooted right here in the heartland of America. Every order helps us keep riders on the road and fuels our passion for serving the motorcycle community.
From all of us at Knobtown Cycle, thank you for choosing local and riding with us.
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