This decision comes down to whether your priority is a complete, ready-to-tow system for light-duty utility or a specialized leveling tool for precision alignment on varied terrain.
• Handnam Trailer Hitch 6: Provides essential adjustability with a 6-inch drop/rise range for a 2.5-inch receiver, ensuring perfect load leveling, though it lacks an integrated wiring harness or the massive towing capacity of a full Class 3 receiver.
• Who should buy the CURT Class 3: Drivers of compatible Mazda vehicles who need a reliable, all-in-one setup for fishing boats, pop-up campers, or ATV trailers without needing extra adapters.
• Who should buy the Handnam Trailer Hitch 6: Users with mismatched receiver heights or those requiring fine-tuned leveling for car detailing equipment or lighter loads where a standard fixed hitch would sit too high or low.
The CURT Class 3 Trailer Hitch is engineered as a comprehensive solution rather than just a metal bar. Its primary design philosophy centers on integration and safety for the specific vehicle platform it targets. If you own a 2017 through 2021 Mazda CX-5 (excluding the Diesel variant), this unit is built to bolt directly into your frame rails. The inclusion of a 4-way flat output wiring harness transforms this from a simple attachment point into a fully functional towing system right out of the box. You do not need to hunt for separate electrical components; the harness integrates seamlessly with your vehicle's electrical system, providing power for taillights, brake lights, and turn signals.
This setup is ideal for the owner who plans to tow moderately heavy items regularly. The structural integrity of the receiver tube ensures that these loads remain stable during transit. However, the design includes specific limitations regarding accessory compatibility. It is explicitly noted that this hitch is not compatible with vertical hanging bike racks. Attempting to mount such accessories could compromise the hitch performance or violate the engineering constraints of the receiver tube, so users must select horizontal carriers or alternative mounting strategies if they wish to transport bicycles.
For those who value long-term reliability and protection against the elements, the CURT Class 3 offers thoughtful design details. The system includes a rubber dust cover to shield the electrical terminals from dirt and moisture when the connector is not in use, which is crucial for maintaining a clean connection over years of service. Additionally, the option to pair this unit with the CURT Easy-Mount bracket allows you to position the 4-way connector conveniently near the hitch itself, reducing the risk of tangled wires or damaged plugs during hookup. Backed by a Limited Lifetime Warranty on the hitch structure and a one-year warranty on parts and finish, this product is built for the driver who needs dependable performance for seasonal hauling and wants peace of mind regarding material defects.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-11-08 · 6 min read · Independent comparison
The Handnam Trailer Hitch 6 serves a different purpose entirely, focusing on the critical mechanical task of leveling and adjustment rather than raw towing capacity or integrated electronics. Designed to fit a 2.5-inch receiver, this unit addresses a common frustration among vehicle owners: the mismatch between the height of the vehicle's receiver and the height of the trailer coupler. Without proper alignment, a trailer will ride nose-high or nose-low, causing poor handling, uneven tire wear, and increased stress on the suspension. This hitch provides a 6-inch drop or rise capability, giving the user significant flexibility to achieve a perfectly level tow regardless of the vehicle's ground clearance or the trailer's height.
This product is particularly valuable for scenarios where precision is paramount, such as car detailing operations or transporting sensitive cargo where even a slight angle could cause shifting or damage. While it does not come with a pre-installed wiring harness like the CURT model, its strength lies in its adaptability. It is a standalone component meant to bridge the gap between a vehicle and a trailer that a standard fixed hitch cannot accommodate. If your vehicle sits lower to the ground or if you frequently switch between different trailers with varying coupler heights, the ability to adjust the vertical position by six inches is a game-changer. It transforms a rigid connection into a dynamic one that can be tuned for optimal aerodynamics and stability.
However, potential buyers must understand the scope of this device. It is an adapter, not a full Class 3 receiver system. It does not inherently increase the towing rating of your vehicle beyond what the manufacturer specifies, nor does it provide electrical connectivity on its own. It is a mechanical solution for a mechanical problem. The unit count indicates it is a single piece of hardware designed to slot into a 2.5-inch receiver, offering immediate usability once installed. For the detailer who moves equipment around or the weekend warrior who tows lightweight but tall trailers, the Handnam Trailer Hitch 6 eliminates the guesswork of finding the right stance for a safe tow. It is the choice for those who already have a receiver or a base hitch but need the specific vertical adjustment to make their setup work correctly.
• Best for Complete Towing Systems → CURT Class 3 (Includes wiring harness and receiver).
• Best for Vertical Leveling → Handnam Trailer Hitch 6 (Offers 6-inch drop/rise adjustment).
• Best for Specific Vehicle Fitment → CURT Class 3 (Engineered exclusively for 2017-2021 CX-5 non-Diesel).
• Best for Receiver Size Variety → Handnam Trailer Hitch 6 (Fits 2.5-inch receivers).
• Best for Precision Alignment → Handnam Trailer Hitch 6 (Ensures trailer is perfectly level).
• Best for Electrical Integration → CURT Class 3 (Plug-and-play 4-way flat output).
• Best for Accessory Flexibility → Handnam Trailer Hitch 6 (Allows height customization for various loads).
In my opinion, the choice depends heavily on whether you are building a towing system from scratch or fixing an existing one. If you are looking for a complete, ready-to-use solution for your Mazda CX-5 to haul boats or campers, the CURT Class 3 is the clear winner because it solves both the mechanical and electrical challenges in one package. However, for the specific use case of car detailing, where precise leveling of equipment trailers is often more critical than raw towing capacity, I would recommend the Handnam Trailer Hitch 6. Its ability to adjust the height by six inches ensures that your detailing rig stays perfectly balanced, preventing strain on the vehicle and protecting the equipment inside.
No, the Handnam unit is described as an adjustable drop/rise hitch for a 2.5-inch receiver and does not list an included wiring harness or electrical components.
No, the product specifications clearly note that this hitch is not compatible with vertical hanging bike racks to ensure proper hitch performance and safety.
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