If you want a lightweight, easy-to-install replacement cable for your trailer's breakaway system, choose SOLUSTRE Trailer Breakaway Switch; if you need a robust, engineered control module specifically designed to integrate with GM vehicles, choose GM GENUINE PARTS 85073615. These two products serve fundamentally different roles in the world of towing safety, and confusing one for the other could lead to serious installation errors or performance issues. The decision isn't about which is "better" in a vacuum; it is entirely about what specific component your rig requires and how you intend to use it.
For owners of classic cars looking to maintain authentic braking systems or restore vintage trailers, the distinction between a simple mechanical switch cable and a modern electronic control module is the difference between a safe drive and a dangerous setup. One product is a small, consumable part meant to trigger brakes during an emergency disconnect, while the other is a complex electronic unit that manages the braking logic itself. Understanding this split is the only way to make the right choice without wasting money on parts that simply won't fit or function in your vehicle.
• Its trade-off is that it is strictly a mechanical cable component for triggering the brake system, not a full control module. This pick is for anyone needing a direct, simple replacement for a broken breakaway cable on an RV or standard trailer.
• GM GENUINE PARTS 85073615: Its biggest strength is its engineering pedigree, being designed, tested, and validated by GM engineers specifically for Chevrolet, Buick, GMC, and Cadillac vehicles to ensure rigorous standards. Its trade-off is its significant size and weight compared to simple switches, as it is a full control module rather than a passive cable. This pick is for GM truck or SUV owners who need a factory-spec electronic integration for their braking system.
The SOLUSTRE Trailer Breakaway Switch Cable is built for a very specific, hands-on task: ensuring that your trailer's electric brakes engage automatically if the hitch connection fails. This is a critical safety mechanism, but the component itself is remarkably simple. It is a cable assembly designed to be pulled when the trailer separates from the tow vehicle, completing a circuit that applies the trailer brakes immediately.
What stands out most about this product is its focus on user convenience and minimalism. The manufacturer emphasizes that the installation is easy and time-saving, suggesting that even someone with moderate mechanical skills can swap this out without specialized tools. The light weight means it won't drag down your setup or create unnecessary tension on the hitch assembly, allowing for a satisfying feeling of ease during both operation and storage.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-11-06 · 6 min read · Independent comparison
This product is ideal for RV owners, boat trailer users, or anyone maintaining a classic car towing setup where a simple, reliable breakaway trigger is all that is needed. If your current system uses a standard breakaway switch and you have lost the cable or the spring mechanism has failed, this is the direct fix. However, if you are looking for a full electronic controller that manages braking force based on speed or acceleration, this is not the right part. It is purely a safety tether component, not a management unit. You should skip this if your vehicle requires a factory-integrated electronic module rather than a standalone mechanical trigger.
In stark contrast, the GM Genuine Parts 85073615 is a heavy-duty Trailer Brake Control Module. The specifications indicate that this part is designed, engineered, and tested to rigorous standards by General Motors themselves. It is backed by the automaker and represents the original equipment (OE) standard for GM vehicles, having formerly appeared under the ACDelco brand name.
The core value here lies in the validation process. GM engineers design and validate these parts specifically for Chevrolet, Buick, GMC, and Cadillac vehicles. This means the module integrates seamlessly with the vehicle's existing electrical architecture and braking logic. The company regularly updates production designs to integrate new materials and technologies, ensuring that the part remains compatible with evolving vehicle systems. For a classic car owner restoring a GM truck or SUV, this part ensures that the braking control functions exactly as the manufacturer intended, preserving the integrity of the vehicle's safety systems.
This product is exclusively for those who own a GM vehicle requiring a dedicated brake control module. It is not a universal aftermarket fix for every trailer; it is tailored for the specific needs of GM platforms. If your trailer relies on a vehicle-mounted controller to modulate braking power, this is the part you need. However, if you are towing a trailer with a simple electric brake system that doesn't require a vehicle-side computer interface, this large, expensive-looking module will likely be overkill and physically impossible to install in your space. You should skip this if you are looking for a simple cable replacement or if you do not own a GM vehicle.
• Best for classic car restoration (towing) → SOLUSTRE Trailer Breakaway Switch if you need a simple, lightweight mechanical trigger for a vintage trailer setup.
• Best for GM vehicle integration → GM GENUINE PARTS 85073615 if you are rebuilding a Chevy, Buick, GMC, or Cadillac and need the factory-approved control module.
• Best for portability and storage → SOLUSTRE Trailer Breakaway Switch, thanks to its tiny footprint and featherweight construction.
• Best for engineering precision → GM GENUINE PARTS 85073615, which undergoes rigorous testing and validation by GM engineers.
• Best for simple DIY replacement → SOLUSTRE Trailer Breakaway Switch, marketed specifically for easy, time-saving installation.
• Best for advanced technology integration → GM GENUINE PARTS 85073615, which includes regular updates to materials and tech for newer vehicle models.
• Best for durability in harsh conditions → Both offer reliability, but the GM part offers systemic durability through OE validation, while the SOLUSTRE offers material durability through sturdy construction.
If I were buying these parts today for my own projects, I would choose the SOLUSTRE Trailer Breakaway Switch for any general towing scenario involving classic cars or standard trailers where a simple, reliable mechanical disconnect is required. Its simplicity is its greatest asset; it does exactly what it is supposed to do without the complexity of a full electronic module. However, if I owned a modern GM truck and needed to replace a failed brake controller, I would immediately reach for the GM GENUINE PARTS 85073615 because the peace of mind that comes with factory-engineered validation is unmatched. For the specific context of a classic car enthusiast managing a vintage trailer, the SOLUSTRE option provides the straightforward solution needed to keep things safe and functional.
The SOLUSTRE switch is a universal mechanical cable designed to work with standard trailer breakaway systems, but it is not a replacement for the GM-specific electronic control module used in GM trucks. Check your vehicle's manual to see if you need a cable or a full module.
Yes, GM Genuine Parts are backed by General Motors, indicating they meet strict quality standards and come with the support of the automaker, unlike generic aftermarket options.
No, the GM GENUINE PARTS 85073615 is specifically engineered and validated for Chevrolet, Buick, GMC, and Cadillac vehicles, so it may not function correctly or fit other brands.
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.