The search results show three main accessory types: a three-point tractor quick hitch for Category 1/2 implements, receiver anti-theft locks for 2" and 2-1/2" receivers, and hitch stabilizer inserts designed to reduce wobble in 1-1/4" and 2" receivers.
The items cover a range of hitch sizes: tractor three-point Category 1 (with some compatibility to Category 2) and receiver sizes including 1-1/4", 2", and 2-1/2".
Receiver locks include anti-theft cores and designs that prevent the coupler latch from moving, plus weather protections such as O-rings, a watertight cap, and seals to keep moisture and residue away from the keyhole.
Stabilizer insert packages include the plastic insert plus mounting hardware such as a nut, a threaded hitch bolt, and a cotter pin; the item is sold as a single package quantity.
Receiver locks use a tubular key that you push to lock or unlock; you should hear a click, then pull the lock head to confirm it is engaged.
Some documentation notes that stabilizer inserts are not compatible with older racks that used a smooth hitch pin; they are designed to fit specified receiver sizes (for example, 1-1/4" and 2") and current rack models.
The tractor quick hitch attaches directly to the tractor's three-point system and is described as requiring no drilling, cutting, or welding for installation.
