Heavy-duty stainless steel receiver lock for securing ball mounts and hitch-mounted accessories in compatible 2" and 2.5" Class III, IV, and V trailer hitch receivers.
The InfiniteRule 61072-S receiver hitch lock is designed to help secure a ball mount or hitch-mounted accessory in a compatible trailer hitch receiver. It uses a 5/8" stainless steel locking pin with a 3-1/8" usable span, making it suitable for many 2" and 2.5" Class III, IV, and V receiver applications.
This lock is built for towing setups where strength, corrosion resistance, and theft deterrence matter. The machined stainless steel construction helps resist rust, while the threaded locking end and weather-resistant rubber cap help protect the lock from road grime, dirt, and moisture.
Locks compatible ball mounts and hitch accessories into the receiver
Common hitch pin size for many Class III, IV, and V receivers
Machined stainless construction helps resist corrosion and wear
InfiniteRule locks are manufactured domestically in the United States
This receiver lock is designed for compatible 2" and 2.5" receiver applications that use a 5/8" hitch pin and can accept a 3-1/8" span. Do not order by receiver size alone. Before ordering, verify the receiver size, hitch pin hole diameter, required pin span, wall thickness, accessory width, and available clearance around the receiver. Some factory receivers, heavy-duty hitches, oversized collars, or tight bumper/frame areas may require a different span or lock style.
Before Starting: Confirm the trailer hitch receiver and accessory both use a 5/8" hitch pin and that the receiver/accessory combination requires a span that fits this lock. Inspect the hitch pin holes for damage, rust, deformation, or misalignment before use. Basic Use Steps: 1. Insert Accessory: Slide the compatible ball mount or hitch accessory fully into the receiver tube. 2. Align Pin Holes: Align the receiver and accessory hitch pin holes. 3. Insert Locking Pin: Slide the 5/8" locking pin through the aligned holes. 4. Install Lock Head: Thread the locking end onto the pin according to the manufacturer’s instructions. 5. Lock and Check: Lock the assembly and pull gently to confirm it is secure. 6. Install Dust Cap: Seat the rubber cap over the lock cylinder to help protect it from dirt and moisture. 7. Inspect Before Towing: Confirm the ball mount or accessory is fully seated, locked, and compatible with the towing setup before travel. 8. Store Keys Safely: Record/save the key number if available and keep spare keys in a safe location.
Package Contents: • 1 InfiniteRule 61072-S receiver hitch lock • 5/8" stainless steel locking pin with 3-1/8" span • Locking end / lock cylinder assembly • Weather-resistant rubber dust cap • Keys as supplied by manufacturer NOT Included — May Also Need: • Trailer hitch receiver • Ball mount or drawbar • Hitch ball • Receiver reducer sleeve or adapter • Anti-rattle device • Coupler lock or trailer tongue lock • Safety chains, wiring, or towing hardware This listing is for the receiver hitch lock only unless otherwise stated. Confirm your receiver size, pin hole diameter, required span, and hitch accessory fitment before ordering.
To confirm compatibility before ordering, have the following ready: • Receiver size: 2" or 2.5" • Hitch pin hole diameter • Required pin span across the receiver/accessory combination • Accessory type, such as ball mount, bike rack, cargo carrier, or weight distribution shank • Receiver wall thickness and collar style • Clearance around the receiver for the lock head and key access • Whether the vehicle has a factory receiver with unusual width or tight surrounding clearance Why this matters: Receiver locks can share the same 5/8" pin diameter but differ in usable span, lock head clearance, receiver compatibility, and accessory fit.
Match this lock by receiver size, pin diameter, usable span, accessory width, lock-head clearance, and towing setup. Do not select by receiver size alone.
If fitment or locking issues continue, check receiver size, pin hole diameter, usable span, lock head clearance, accessory alignment, thread condition, and key/cylinder operation before replacing additional towing parts.
Always confirm the receiver lock, hitch receiver, ball mount, hitch ball, trailer, and towing vehicle are properly rated and compatible for the towing setup. A receiver lock helps secure the accessory to the receiver, but it does not increase hitch capacity, correct an overloaded trailer, replace safety chains, or fix an improperly matched towing system. Inspect the lock before each trip and do not tow with damaged, mis-sized, loose, or improperly installed towing hardware.