Trimax MAG200 Trailer Receiver Lock — Resettable Combination, 5/8" Hardened Pin, Weather-Resistant

The TRIMAX MAG200 is a resettable combination trailer receiver lock with a 5/8" pin designed to secure Class III, IV, and V hitches without keys.

Built for owners of trailers, campers, work trucks, and heavy-duty vehicles, the MAG200 combines weather-resistant construction, a robust 5/8" pin, and a user-settable combination so you can protect your tow setup without managing keys. Its protective head cover and non-corrosive materials extend service life in rainy or salty environments while the size and shape fit common receiver types used across towing applications.

How does this lock fit different receiver sizes?

The TRIMAX MAG200 is engineered to work with Class III, IV, and V hitch receivers, covering most consumer and commercial towing applications. Its pin diameter and length are matched to standard receiver holes so installation is straightforward.

• 5/8" hardened steel pin compatible with standard hitch holes
• Designed for Class III, IV, and V receivers common on trailers and tow vehicles
• Low-profile head clears receiver frames for a snug fit
• Works with most ball mount and hitch-mounted accessories

How do I set and change the combination?

Setting a personal code on the MAG200 is simple and requires no special tools. The mechanism is resettable so you can update the combination whenever needed while keeping access keyless.

• Follow the included instructions to enter a temporary code and set your new combination
• No keys to carry or replace — access is through your chosen numeric code
• Resettable design lets you change codes after transfers or security concerns
• Limited lifetime warranty supports long-term use and peace of mind

How well will it stand up to weather and corrosion?

Trimax constructed the MAG200 from rust-resistant materials and added a protective head cover to shield the mechanism. These features reduce moisture and debris intrusion that typically shorten lock life in outdoor use.

• Non-corrosive metal components resist rust in wet and coastal conditions
• Durable weather-resistant head cover keeps dirt and water out of the lock core
• Hardened pin offers mechanical durability against everyday wear
• Suitable for year-round outdoor storage and frequent towing environments

How does it improve trailer security compared with a keyed lock?

By eliminating keys, the MAG200 reduces the risk of lost or duplicated keys while providing a strong physical barrier to hitch theft. The lock's hardened pin and snug receiver fit add a visible deterrent and an effective mechanical obstacle to unauthorized removal.

• Keyless operation prevents accidental lockouts and lost-key scenarios
• Hardened 5/8" pin resists cutting and lever attacks more effectively than thin alternatives
• Visible security device discourages opportunistic theft
• Resettable combination lets owners revoke access instantly by changing codes

Who is this for: The TRIMAX MAG200 is intended for trailer owners, RV and camper users, contractors with hitch-mounted tools, fleet managers, and anyone who needs a durable, weather-resistant, keyless receiver lock that fits Class III–V hitches. It’s a practical choice for people who tow frequently, store equipment outdoors, or want a low-maintenance locking solution with the flexibility to change combinations when needed.