Looking for the best Class III IV hitch locks? We’ve tested and reviewed the top 10 options to help you secure your trailer with ease and confidence.
Securing your trailer is a top priority, and the right hitch lock makes all the difference. Class III and IV hitches handle heavy loads, so you need a lock that’s tough, reliable, and easy to use. We’ve tested the best options to keep your trailer safe and your ride smooth.
From anti-theft features to weatherproof designs, these locks are built to last. Discover which one fits your needs and enjoy peace of mind on every journey.
List of Top 10 Class III IV Hitch Locks
| Image | Title | Best For | Price |
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METOWARE Trailer Hitch Lock Hitch Receiver Pin Lock Fits Class III IV V and 2”- 3-1/2″ Receiver with 5/8″ Dia 4” Lock Pin and 8 Anti-Rattle Rubber O-Rings Receiver Hitch Lock (1 Pack) |
This heavy-duty trailer hitch lock is perfect for anyone who needs to securely tow their trailer. It’s built tough to handle big towing jobs with trucks and cars, ensuring your trailer stays put. |
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Orion Motor Tech Locking Hitch Pin, Fits 2″ Receiver with 5/8″ Diameter Hitch Pin Lock, Anti-Theft Steel Hitch Pin Lock with Key for Class III IV Hitches, Anti-Rattle Trailer Hitch Pin with O-Rings |
This Orion Motor Tech Locking Hitch Pin is perfect for anyone who wants to keep their trailer secure and stop theft. It’s also great for those who want to enjoy a quiet, rattle-free ride while towing. |
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JUSTTOP Trailer Hitch Receiver Pin Lock,5/8″ Dia 3-1/2″ Long Pin Trailer Lock for Class III IV 2″ and 2-1/2″ Receiver,Tow Hitch Pin Lock with 4 Anti-Rattle Rubber O-Rings,for Trailer Truck Car Boat |
This trailer hitch lock is perfect for anyone who tows trailers, boats, or RVs. It’s easy to use and keeps your gear safe from theft. |
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METOWARE Trailer Hitch Lock, Locking Hitch Pin-Fits 2″ & 2.5″ Receiver with 5/8″ Dia 3-1/2″ Long Pin,Receiver Lock for Class III IV Hitches, Anti-Theft Trailer Hitch Pin with Anti-Rattle O-Rings,Black |
This METOWARE Trailer Hitch Lock is perfect for anyone towing heavy loads. Whether you’re hauling an RV, boat, or utility trailer, it offers easy, secure locking and fits most trucks. |
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Rhino USA 2” Trailer Hitch Pin – Patented Locking Receiver Pin for Class III/IV Hitches – Weatherproof, Anti-Theft, Debris-Protected – Tow Truck Ready – Black 1PK |
The Rhino USA 2” Trailer Hitch Pin is perfect for anyone who tows trailers, RVs, or other heavy loads. It’s ideal for those who want top security and peace of mind. |
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Premium Trailer Hitch Pin Lock with 5/8” Diameter for Class III/IV 2 Inch Receiver – Anti Theft Hitches Accessories – Anti Rattle Tongue Locking for Truck, Boat, RV Trailers (Black, 3 Inch Length) |
This premium trailer hitch pin lock is perfect for anyone towing trailers, RVs, or boats. It’s ideal for truck, camper, or construction vehicle owners who want reliable security and quiet towing. |
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CZC AUTO Hitch Receiver Pin Lock Trailer Receiver Lock Keyed Alike with 5/8″ Pin for Class III IV 2″ and 2-1/2″ Receiver for Hitch Bike Rack Tray Ball Tow Rope for Trailer Truck Car Boat (2 Pack) |
This hitch receiver pin lock is perfect for anyone who tows trailers, bikes, or cargo with a Class III/IV 2″ or 2-1/2″ receiver. It’s easy to use, durable, and fits most hitch accessories. |
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Rhino USA 2” Trailer Hitch Pin – Patented Locking Receiver Pin for Class III/IV Hitches – Weatherproof, Anti-Theft, Debris-Protected – Tow Truck Ready – Red 1PK |
This Rhino USA Trailer Hitch Pin is perfect for anyone who tows trailers, RVs, or other heavy loads. It’s ideal for those who want top security and durability to protect their equipment. |
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CZC AUTO Trailer Hitch Lock, 5/8 Inch Dia, 4 Inch Super Extra Long Receiver Pin for Class III IV Hitches, for Hitch Bike Rack Tray Ball Tow Rope, for Trailer Truck Car Boat (1 Pack) |
This CZC AUTO Trailer Hitch Lock is perfect for big towing vehicle owners who need a secure and reliable way to lock their Class III or IV hitches. It’s easy to use and built tough for trailers, trucks, or boats. |
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METOWARE Trailer Hitch Lock – 5/8″ Dia Locking Hitch Pin, Anti-Theft Trailer Receiver Lock, Fits 2″ Receiver Tubes, Class III & IV Hitch Receivers, Black (1 Pack) |
This METOWARE Trailer Hitch Lock is perfect for anyone who owns a trailer and wants to keep it safe from theft. It’s easy to use and fits most hitches, making it ideal for daily drivers and weekend adventurers. |
Detailed Reviews
Discover the top 10 Class III IV Hitch Locks in this expert-curated guide. Each lock is thoroughly reviewed for security, durability, and ease of use. Whether you need anti-theft protection or rattle-free towing, we’ve got you covered. Find the perfect hitch lock to keep your trailer safe and secure on every journey.
1. METOWARE Trailer Hitch Lock Hitch Receiver Pin Lock Fits Class III IV V and 2”- 3-1/2″ Receiver with 5/8″ Dia 4” Lock Pin and 8 Anti-Rattle Rubber O-Rings Receiver Hitch Lock (1 Pack)
Secure your trailer with the METOWARE Trailer Hitch Lock. It’s built tough with all-metal construction and a strong 5/8″ diameter pin. This lock fits most hitches and is easy to use.
This lock is durable and can handle heavy loads. It also comes with rubber rings to stop rattling and a cap to keep dirt out.
| Pros | Cons |
|---|---|
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Perfect For:
This heavy-duty trailer hitch lock is perfect for anyone who needs to securely tow their trailer. It’s built tough to handle big towing jobs with trucks and cars, ensuring your trailer stays put.
Ready to Purchase?
2. Orion Motor Tech Locking Hitch Pin, Fits 2″ Receiver with 5/8″ Diameter Hitch Pin Lock, Anti-Theft Steel Hitch Pin Lock with Key for Class III IV Hitches, Anti-Rattle Trailer Hitch Pin with O-Rings
Keep your trailer safe and sound with the Orion Motor Tech Locking Hitch Pin. This heavy-duty lock stops thieves in their tracks. It’s built tough for peace of mind.
This steel hitch pin fits 2-inch receivers perfectly. It’s easy to install and remove with a key.
Enjoy a quiet, smooth ride. The Orion Motor Tech Hitch Pin is built to last. It protects against weather and wear.
| Pros | Cons |
|---|---|
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Perfect For:
This Orion Motor Tech Locking Hitch Pin is perfect for anyone who wants to keep their trailer secure and stop theft. It’s also great for those who want to enjoy a quiet, rattle-free ride while towing.
Ready to Purchase?
3. JUSTTOP Trailer Hitch Receiver Pin Lock,5/8″ Dia 3-1/2″ Long Pin Trailer Lock for Class III IV 2″ and 2-1/2″ Receiver,Tow Hitch Pin Lock with 4 Anti-Rattle Rubber O-Rings,for Trailer Truck Car Boat
The JUSTTOP Trailer Hitch Receiver Pin Lock is a must-have for securing your trailer, boat, or RV. It fits most Class III and IV hitches and comes with anti-rattle rubber O-rings for a smooth, quiet ride.
This lock is built tough with anti-theft features, durable materials, and two keys for convenience. It’s easy to use and keeps your setup safe and stable.
| Pros | Cons |
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Perfect For:
This trailer hitch lock is perfect for anyone who tows trailers, boats, or RVs. It’s easy to use and keeps your gear safe from theft.
Ready to Purchase?
4. METOWARE Trailer Hitch Lock, Locking Hitch Pin-Fits 2″ & 2.5″ Receiver with 5/8″ Dia 3-1/2″ Long Pin,Receiver Lock for Class III IV Hitches, Anti-Theft Trailer Hitch Pin with Anti-Rattle O-Rings,Black
The METOWARE Trailer Hitch Lock keeps your trailer safe and secure. It’s easy to use and fits 2″ and 2.5″ receivers.
This lock works with Class III and IV hitches. It’s made of strong steel and resists rust. The anti-rattle O-rings keep it quiet.
The push-to-lock feature is key-free for quick use. It’s weatherproof and protects against theft. Perfect for boats, RVs, and more.
| Pros | Cons |
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Perfect For:
This METOWARE Trailer Hitch Lock is perfect for anyone towing heavy loads. Whether you’re hauling an RV, boat, or utility trailer, it offers easy, secure locking and fits most trucks.
Ready to Purchase?
5. Rhino USA 2” Trailer Hitch Pin – Patented Locking Receiver Pin for Class III/IV Hitches – Weatherproof, Anti-Theft, Debris-Protected – Tow Truck Ready – Black 1PK
Keep your trailer secure and protected with the Rhino USA Trailer Hitch Pin. This patented locking pin is built tough for ultimate hitch security, ensuring your trailer stays put.
Designed for Class III/IV hitches, this pin features a weatherproof slide cap to keep out dirt and debris. It’s made from solid steel for maximum security and peace of mind.
It’s easy to use. It offers lasting durability. And it comes with a lifetime replacement guarantee.
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Perfect For:
The Rhino USA 2” Trailer Hitch Pin is perfect for anyone who tows trailers, RVs, or other heavy loads. It’s ideal for those who want top security and peace of mind.
Ready to Purchase?
6. Premium Trailer Hitch Pin Lock with 5/8” Diameter for Class III/IV 2 Inch Receiver – Anti Theft Hitches Accessories – Anti Rattle Tongue Locking for Truck, Boat, RV Trailers (Black, 3 Inch Length)
The Premium Trailer Hitch Pin Lock keeps your trailer, RV, or boat safe. Its 5/8″ diameter shackle is made from hardened alloy, making it tough to cut or pry. It’s weather-resistant, so it works well in rain, snow, or saltwater.
This lock stops rattling noise with its rubber rings. It fits Class III/IV 2-inch receivers perfectly. The key-operated design lets you lock and unlock it quickly and easily.
It’s built to last with a chrome galvanized coating. Two dual-bitted keys are included for your convenience. This lock is a must-have for secure towing.
| Pros | Cons |
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Perfect For:
This premium trailer hitch pin lock is perfect for anyone towing trailers, RVs, or boats. It’s ideal for truck, camper, or construction vehicle owners who want reliable security and quiet towing.
Ready to Purchase?
7. CZC AUTO Hitch Receiver Pin Lock Trailer Receiver Lock Keyed Alike with 5/8″ Pin for Class III IV 2″ and 2-1/2″ Receiver for Hitch Bike Rack Tray Ball Tow Rope for Trailer Truck Car Boat (2 Pack)
The CZC AUTO Hitch Receiver Pin Lock is a must-have for securing your trailer or hitch accessories. It fits 2″ and 2-1/2″ receivers, making it perfect for Class III/IV hitches.
This keyed-alike lock comes in a 2-pack with 4 keys. It’s easy to use, weather-resistant, and built with durable materials for long-lasting protection.
| Pros | Cons |
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Perfect For:
This hitch receiver pin lock is perfect for anyone who tows trailers, bikes, or cargo with a Class III/IV 2″ or 2-1/2″ receiver. It’s easy to use, durable, and fits most hitch accessories.
Ready to Purchase?
8. Rhino USA 2” Trailer Hitch Pin – Patented Locking Receiver Pin for Class III/IV Hitches – Weatherproof, Anti-Theft, Debris-Protected – Tow Truck Ready – Red 1PK
Keep your trailer secure with the Rhino USA Trailer Hitch Pin. This patented locking pin offers superior protection against theft. It’s built tough for all your towing needs.
This solid steel pin fits Class III and IV hitches perfectly. Its weatherproof cap keeps out dirt and debris.
Enjoy peace of mind with this durable hitch pin. It’s an American-made product with a lifetime replacement guarantee.
| Pros | Cons |
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Perfect For:
This Rhino USA Trailer Hitch Pin is perfect for anyone who tows trailers, RVs, or other heavy loads. It’s ideal for those who want top security and durability to protect their equipment.
Ready to Purchase?
9. CZC AUTO Trailer Hitch Lock, 5/8 Inch Dia, 4 Inch Super Extra Long Receiver Pin for Class III IV Hitches, for Hitch Bike Rack Tray Ball Tow Rope, for Trailer Truck Car Boat (1 Pack)
The CZC AUTO Trailer Hitch Lock is a 5/8 inch diameter pin with a 4-inch extra-long length, perfect for Class III and IV hitches. It’s designed for big towing vehicles like trucks, trailers, and boats.
This lock is easy to use, comes with 2 keys, and has a watertight dust cap to keep the keyhole clean. It’s made of durable steel with an anti-theft lock core for added security.
| Pros | Cons |
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Perfect For:
This CZC AUTO Trailer Hitch Lock is perfect for big towing vehicle owners who need a secure and reliable way to lock their Class III or IV hitches. It’s easy to use and built tough for trailers, trucks, or boats.
Ready to Purchase?
10. METOWARE Trailer Hitch Lock – 5/8″ Dia Locking Hitch Pin, Anti-Theft Trailer Receiver Lock, Fits 2″ Receiver Tubes, Class III & IV Hitch Receivers, Black (1 Pack)
Keep your trailer secure with the METOWARE Trailer Hitch Lock. Made from high-strength steel, it protects your trailer and hitch from theft.
It fits most hitches, stays durable in all weather, and comes with strong copper keys. Plus, it stops rattling noise for a smoother ride.
| Pros | Cons |
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Perfect For:
This METOWARE Trailer Hitch Lock is perfect for anyone who owns a trailer and wants to keep it safe from theft. It’s easy to use and fits most hitches, making it ideal for daily drivers and weekend adventurers.
Ready to Purchase?
Buying Guide
Choosing the right hitch lock is crucial for trailer security. A good lock offers peace of mind and protects your investment. This guide helps you find the best option for your needs.
Factors to Consider When Buying a Class III/IV Hitch Lock:
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Material Strength:
Look for locks made from hardened steel or alloy. This ensures they can withstand attempts to cut or pry them. A tough material is your first line of defense against theft. -
Receiver Size Compatibility:
Ensure the lock fits your hitch receiver size. Class III and IV hitches typically use 2-inch or 2.5-inch receivers. Check the pin diameter, usually 5/8 inch, to match your hitch. -
Anti-Theft Features:
Consider locks with robust locking mechanisms. Features like key-operated designs and solid construction deter thieves. Some locks also have unique keyways for added security. -
Durability and Weather Resistance:
Your lock will face the elements. Choose one with a weatherproof design and rust-resistant coating. This ensures it performs reliably in rain, snow, or salt. -
Ease of Use:
A good lock should be easy to install and remove. Look for features like push-to-lock mechanisms or simple key operation. Anti-rattle O-rings also contribute to a smoother, quieter ride. -
Brand Reputation and Warranty:
Reputable brands often offer better quality and support. Check for lifetime replacement guarantees or strong warranties. This shows the manufacturer stands behind their product.
Would you like to explore specific brands or features in more detail?