TOPSHINE Trailer Hitch Lock for 2" Receiver — 5/8" Diameter Pin, Keyed-Alike, Weather-Resistant

TOPSHINE Trailer Hitch Lock is a 5/8" diameter, keyed-alike anti-theft hitch pin designed to secure 2" Class III/IV receivers with a simple 1/4-turn locking action.

When you tow or leave a trailer hitched, a compact, durable lock can prevent opportunistic theft and give you confidence. This TOPSHINE hitch pin lock combines hardened steel construction, a weather-resistant finish, and a rubber-covered keyway so the locking mechanism resists corrosion and stays operational in outdoor conditions. The lock ships keyed alike with four identical keys for convenient access by the vehicle owner and trusted helpers.

How does this hitch lock protect my trailer when parked?

The lock secures the hitch ball mount inside a 2" receiver by replacing the standard pin with a hardened steel lock. Its 5/8" diameter resists bending and cutting attempts typical of quick-theft scenarios, while the coated body slows corrosion that can weaken hardware over time.

• High-strength steel core provides robust physical resistance.
• Powder-coated finish reduces rust and surface wear.
• 1/4-turn lock activation prevents accidental release when hitched.
• Rubber key cap keeps water and dust out of the keyway.

Will this fit my trailer receiver and how do I check compatibility?

The TOPSHINE lock is sized for standard 2" Class III/IV receivers that have a 5/8" hitch pin hole. It provides a usable length of 2-4/5"—measure the interior span of your receiver and the hitch mount thickness to confirm a correct fit. Note: it is not compatible with double-walled receivers.

• Designed for 2" receiver tubes with a 5/8" hole.
• 2-4/5" usable shank length—measure inside clearance before ordering.
• Not suitable for double-walled receiver designs.
• Ideal for Class III and IV towing setups that match these dimensions.

How easy is it to use and maintain the lock in all seasons?

The lock uses a quick 1/4-turn activation so you can secure or release the hitch pin swiftly without tools. A rubber weather cap protects the key cylinder from moisture and grit, while the powder-coated body helps repel surface corrosion—both extend reliable operation through wet or salty conditions.

• Simple 1/4-turn operation for fast locking and unlocking.
• Pull-test recommended after locking to confirm engagement.
• Rubber cap blocks water, preventing frozen or clogged keyways.
• Powder coat finish minimizes rust in roadside and marine climates.

What convenience features come with the keyed-alike option?

TOPSHINE supplies four identical keys so you can keep spares for family members, campers, or emergency use without juggling multiple key patterns. Keyed-alike locks eliminate the need to rekey multiple pins when you manage several trailers or share access with a partner.

• Four matching keys included for immediate spare distribution.
• Avoids the hassle of different keys for each lock on your rig.
• Duplicates can be kept in a vehicle or with trusted helpers.
• Keyed-alike setup simplifies fleet or multi-trailer management.

Who this is for: This TOPSHINE Trailer Hitch Lock suits trailer owners, RVers, and tradespeople who use 2" Class III/IV hitch receivers and want a compact, weather-resistant anti-theft solution. Choose it if you need a rugged 5/8" pin with quick operation, identical spare keys for convenience, and a corrosion-resistant finish for long-term outdoor use. Verify your receiver’s 5/8" hole and 2-4/5" usable length before purchase to ensure a secure fit.