Bulldog 580401 5/8" Chrome Dogbone Hitch Lock
Bulldog 580401 5/8" Chrome Dogbone Hitch Lock — Product description
The Bulldog 580401 is a 5/8-inch dogbone-style hitch pin lock that keeps your hitch-mounted gear from walking off. Chrome-plated with a keyed lock cylinder and a dust cap to keep grit out, it drops straight into a Class III, IV, or V receiver.
If you leave a bike rack, cargo carrier, or ball mount in the receiver, you already know the risk. A standard hitch pin pulls right out. The Bulldog 580401 swaps that pin for a locking one, so nobody's lifting your gear out of the receiver in a parking lot.
It's a dogbone-style lock with a 5/8-inch diameter pin, which is the size Class III, IV, and V receivers use. Slide it through, turn the key, and the accessory is locked in. The barrel is chrome-plated, and there's a dust cap that snaps over the keyway to keep road grime and salt out of the cylinder. That little cap matters more than it sounds. It's the difference between a lock that turns smoothly next season and one that's seized up.
Simple piece of gear, but it's the kind of thing you're glad you have when you're parked at the ramp or the trailhead. Comes keyed with the lock, ready to drop in.
Key Features
- 5/8-inch diameter pin fits Class III, IV, and V hitch receivers
- Dogbone-style receiver lock secures ball mounts, bike racks, and cargo carriers
- Keyed lock cylinder replaces a standard hitch pin
- Chrome-plated finish resists corrosion
- Includes a snap-on dust cap to keep the keyway clean
Why Buy from NVN Marine
- Authorized Bulldog reseller, full manufacturer warranty
- NMEA member and ABYC certified, advice from real boat techs
- Same-day shipping before 3 PM ET on in-stock items
- NY headquarters and Fort Lauderdale flagship retail store
Technical specifications
| Title | Bulldog 580401 5/8" Chrome Dogbone Hitch Receiver Lock |
|---|---|
| Brand | Bulldog |
| Manufacturer Part Number | 580401 |
| UPC | 783192025791 |
| Pin Diameter | 5/8 Inch |
| Fits Hitch Class | Class III, IV, V |
| Style | Dogbone |
| Lock Type | Keyed Lock |
| Finish | Chrome |
| Included | Dust Cap |
Frequently asked questions
What size receiver does the 580401 fit?
It has a 5/8-inch diameter pin, which is the size used by Class III, IV, and V hitch receivers.
Does it come with a key?
Yes. It's a keyed lock and ships with the key you need to lock and unlock it.
What does the dust cap do?
It snaps over the keyway to keep road salt and grit out of the lock cylinder, so the mechanism keeps turning smoothly over time.
Does this lock my trailer to the tow ball?
No. This is a receiver pin lock. It secures a hitch-mounted accessory or ball mount into the receiver tube. It is not a coupler lock for the trailer tongue.
