Best Tow Hitch Lock for 2-Inch and 2.5-Inch Receivers

#1 · Best Overall

1. Rhino USA 2in Hitch Pin

• Weight: 1.17 lb
• Material: Carbon Steel

Best for: For standard 2-inch receivers.

Why it ranks #1: Its solid-steel locking pin is specified for Class III and IV 2-inch receivers, and the package includes two keys and a dust cover.

Solid carbon steel is the defining feature of this Rhino USA receiver pin, giving owners of Class III and IV 2-by-2-inch hitches a tamper-resistant way to secure a trailer connection. Its standard-size focus makes the intended fit easy to identify, while the included dust cover helps shield the lock opening between uses.

The 2-inch pin is specified for Class III and IV receivers, so it targets common standard receiver setups rather than adjustable channels or couplers. Solid carbon steel provides the stated tamper-resistant construction, and a dust cover helps keep debris away from the lock opening. Two included keys give the owner a spare for routine access. At 1.17 pounds, this is a substantial single pin; buyers should match its receiver size to their hitch before choosing it.

Skip it if you have a 2.5-inch receiver or an adjustable channel mount; TowWorks 79831 lists a 4.5-inch active span for many adjustable hitches.

This suits owners securing a trailer on a standard Class III or IV 2-inch receiver who value a steel locking pin and dust-covered keyway. Its stated fit is limited to 2-by-2-inch receivers, so broader receiver sizes require another option.

Listed on Amazon as: Rhino USA 2in Trailer Hitch Pin – Patented Locking Receiver Pin

#2 · Best Anti-Rattle

2. TowWorks 79631 Hitch Lock

• Material: Steel
• Material Type: Steel

Best for: For rattle-conscious receiver setups.

Why it ranks #2: The 5/8-inch pin has a 3-1/4-inch active span for 2-inch and 2.5-inch receivers, plus six O-rings and a safety cotter pin.

Six included rubber O-rings make the TowWorks 79631 useful for owners seeking to keep a receiver pin still and reduce rattles. Its 5/8-inch pin has a 3-1/4-inch maximum active span and is specified for Class III and IV 2- and 2.5-inch receivers.

The 3-1/4-inch active span supports the listed 2- and 2.5-inch Class III/IV receiver fit, while six O-rings help hold the pin still and keep rattles down. The pin uses hardened steel with internal zinc plating and an external black electrophoresis finish, connecting its surface treatment to rust resistance. A separate spring clip provides an additional safety measure and lets owners change hitches without using the lock, but the listing cautions that the clip must be used.

Skip it if you want a receiver lock without a separate required clip; CZC AUTO model 13 instead describes a keyed pin with an automatic pop-up unlock.

Choose this for a 2- or 2.5-inch Class III/IV receiver where reducing pin movement matters and a spring clip is acceptable. Its setup requires using that clip, so include it in every installation.

Listed on Amazon as: TowWorks 79631 Keyed Unique 5/8" Trailer Hitch Lock with Extra Long 3-1/4" Span, Double Safety Tow Hitch Receiver Locking Pin for Class III IV Hitches with 2" and 2.5" Receivers

#3 · Stainless Steel Pick

3. Master Lock 1469DAT Receiver Lock

• Weight: 14.4 oz
• Material: Stainless Steel
• Material Type: Stainless Steel

Best for: For corrosion-conscious heavy-duty towing.

Why it ranks #3: Its 5/8-inch stainless-steel pin has a 3-1/2-inch shaft and is listed for 2-inch and 2.5-inch hitches.

Stainless steel construction is the key distinction of the Master Lock 1469DAT, offering corrosion resistance for owners of late-model trucks with heavy-duty tow packages. Its extended 3-1/2-inch shaft fits 2- and 2.5-inch hitches, and the swivel head helps provide access around the lock.

The 5/8-inch pin has a 3-1/2-inch shaft, with the extended length specified for 2- and 2.5-inch hitches, making it relevant to owners with either receiver size. Stainless steel resists corrosion, a practical benefit for a receiver lock exposed to the elements. Push-to-lock operation simplifies securing the pin, while the swivel head allows easier access when working around the receiver. The listing specifically notes late-model trucks equipped with heavy-duty tow packages.

Skip it if you need extra-long reach for an adjustable mount; TowWorks 79831 lists a 4.5-inch active span for many channel-style hitches.

This suits late-model truck owners with heavy-duty tow packages who want a corrosion-resistant receiver lock and easy push-to-lock operation. Its listed extended shaft is 3-1/2 inches, so longer-span setups call for another fit.

Listed on Amazon as: Master Lock Silver and Red Receiver Lock, Stainless Steel BarbellTM Hitch Pin Lock, Fits 5/8 in. Receivers, Weather Resistant Automotive Receiver Lock, 1469DAT

#4 · Best 2.5-Inch Fit

4. InfiniteRule 2.5in Receiver Lock

• Weight: 10.2 oz

Best for: For 2.5-inch receiver security.

Why it ranks #4: This stainless-steel lock is specifically designed for standard 2.5-inch receiver hitches and uses a threaded locking mechanism.

A machined, threaded locking mechanism sets this InfiniteRule Security lock apart for standard 2.5-inch receivers. Its stainless steel body and 3/8-inch threaded mechanism are presented as strength and corrosion-resistance features, while the thick cylinder overlaps the pin to make the locking assembly more resistant to tampering.

The lock is specifically made for standard 2.5-inch receiver hitches, including the listed Class III, IV, and V fit, so owners of other receiver sizes should look elsewhere. High-grade stainless steel supports the stated rust resistance, while a machined 3/8-inch threaded mechanism and thick cylinder overlapping the pin are intended to resist damage and tampering. A real key operates the mechanism, and the US-made construction may appeal to buyers seeking domestic manufacture.

Skip it if you need a lock spanning both 2- and 2.5-inch receivers; Master Lock 1469DAT lists an extended shaft for those two sizes.

This fits owners of standard 2.5-inch Class III, IV, or V receivers who prioritize stainless construction and a threaded locking mechanism. Its stated receiver size is specific, so it is not a cross-size option.

Listed on Amazon as: 2.5" Receiver Hitch Lock – Heavy-Duty Stainless Steel Anti-Theft Lock for Trailers, RVs & UTVs – Made in USA

#5 · Longest Listed Span

5. TowWorks 79831 Hitch Lock

• Weight: 0.58 kg
• Material: Steel & Zinc Alloy
• Material Type: Steel & Zinc Alloy

Best for: For adjustable channel mounts.

Why it ranks #5: Its 5/8-inch pin offers a 4-1/2-inch active span for many adjustable hitches and channel mounts; the listing excludes FASTWAY adjustable hitches.

A 4.5-inch maximum active span sets the TowWorks 79831 apart, giving many adjustable hitches and channel mounts room for its 5/8-inch locking pin. The listing names several CURT channel-style models and adjustable pintle hooks, making this a targeted choice for setups that need extra pin reach.

The extra-long 5/8-inch pin provides up to 4.5 inches of active length, which supports many adjustable hitches that need more reach than a standard receiver pin. TowWorks lists specific CURT 45900-series channel mounts and 45907/45908 adjustable pintle hooks as examples, helping buyers check compatibility against their hardware. A spring clip allows quick hitch changes without using the lock, while one-piece hardened steel and a zinc-plated, black e-coated finish address strength and surface protection.

Skip it if you use a FASTWAY adjustable hitch or only need a standard 2-inch receiver pin; CZC AUTO model 13 lists 2- and 2.5-inch receiver fit.

This fits trailer owners using an adjustable channel hitch or pintle setup that needs extra pin reach and appreciates a spring clip for changes. Avoid it for FASTWAY hardware, which the listing explicitly excludes.

Listed on Amazon as: TowWorks 79831 Keyed Unique 5/8" Trailer Hitch Lock with Extra Long 4-1/2" Span, Double Safety Tow Hitch Locking Pin for 3" Receivers and Adjustable Channel Mounts

#6

6. CZC AUTO Hitch Pin Lock

• Weight: 0.32 kg
• Material: Carbon Steel
• Material Type: Carbon Steel

Best for: For rotating-head convenience.

Why it ranks #6: The 5/8-inch pin has a 3-1/2-inch effective length for Class III and IV 2-inch and 2.5-inch receivers, with a rubber key-slot cap.

A 360-degree rotating head makes the CZC AUTO pin easier to handle around the receiver, while its 5/8-inch shaft targets Class III and IV 2- and 2.5-inch hitches. The rubber key-slot cap adds a practical barrier against moisture, dust, and rust at the keyhole.

The 3-1/2-inch effective pin length and 5/8-inch diameter are specified for 2- and 2.5-inch Class III/IV receivers, making the intended size range clear. A rotating head aids handling during locking and unlocking, and the all-weather rubber cap protects the key slot from moisture, dust, and rust. The stated unlock sequence is simple: turn the key and the pin pops up automatically. After locking, the listing advises pulling the head to check engagement.

Skip it if you need a longer 4.5-inch active span for an adjustable mount; TowWorks 79831 lists that reach for many adjustable hitches.

This is a practical match for owners of 2- or 2.5-inch Class III/IV receivers who value a rotating head and protected key slot. Follow its stated pull-check step after locking to verify engagement.

Listed on Amazon as: CZC AUTO Trailer Hitch Pin Lock 5/8" for Class III IV 2" 2-1/2" Receiver

#7

7. JUSTTOP Hitch Pin Lock

• Weight: 14.1 oz

Best for: For 2- and 2.5-inch receivers.

Why it ranks #7: Its 5/8-inch pin and 3-1/2-inch effective length are listed for most Class III and IV 2-inch and 2.5-inch receivers, with four anti-rattle O-rings.

Four anti-rattle rubber O-rings distinguish this JUSTTOP receiver lock, giving owners a way to address movement at the hitch connection. Its 5/8-inch pin has 3-1/2 inches of effective length and is specified for most Class III and IV 2- and 2.5-inch receivers.

The 5/8-inch pin and 3-1/2-inch effective length define the receiver fit, with the listing covering most Class III and IV 2- and 2.5-inch setups. That broad stated size range can suit owners moving between common receiver classes, while four anti-rattle O-rings are intended to reduce looseness at the connection. Black electrophoretic-painted carbon steel supplies the stated rigid, bend-resistant construction, and a tamper-resistant tubular key system addresses locking security.

Skip it if you need a specifically listed 3-inch receiver span; TowWorks 79831 provides a 4.5-inch active length for many adjustable mounts.

This suits owners of common Class III or IV 2- and 2.5-inch receivers who want O-rings to help limit rattling alongside a locking pin. Its fit is stated as covering most compatible receivers, not every configuration.

Listed on Amazon as: 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

#8

8. METOWARE Hitch Lock

• Weight: 10.5 oz

Best for: For single-wall 2-inch receivers.

Why it ranks #8: The 5/8-inch pin is designed for 2-inch receivers with a 2-3/4-inch effective length, but the listing excludes double-walled receiver tubes.

The METOWARE lock’s 2-3/4-inch effective pin length targets a 2-inch-by-2-inch receiver, giving owners of that setup a clearly stated fit. Its high-strength steel construction is intended to secure the trailer and ball mount, but the listing excludes double-walled receiver tubes.

A 5/8-inch pin and 2-3/4-inch effective length are specified for 2-inch-by-2-inch receivers, helping buyers identify the intended receiver format. The stated double-wall exclusion is an important fit boundary to check before installation. High-strength steel provides the listed security construction for a trailer and ball mount, while the compact receiver-specific specification keeps this option focused on standard 2-inch setups rather than adjustable channels or 2.5-inch receivers.

Skip it if you have a double-walled tube or a 2.5-inch receiver; Master Lock 1469DAT lists fit for 2- and 2.5-inch hitches.

This is for owners with a compatible single-wall 2-inch receiver who want a locking pin for the trailer and ball mount. Its explicit double-wall exclusion makes receiver construction a key boundary before purchase.

Listed on Amazon as: METOWARE Trailer Hitch Lock, 5/8" Dia Hitch Pin, Fit 2" Receiver, Black

#9

9. Kohree Hitch Lock Set

• Weight: 2.05 lb

Best for: For Class III and IV receiver owners.

Why it ranks #9: This 5/8-inch receiver-lock set is listed for Class III and IV receivers, but its supplied details do not specify an effective pin length.

A flexible rubber key-slot cap distinguishes the Kohree 5/8-inch hitch lock, covering the keyhole to help keep away dust and moisture. The product is identified for Class III and IV receivers, making it a candidate for owners whose towing setup matches that receiver class.

The 5/8-inch size and Class III/IV designation give buyers a starting point for checking receiver compatibility, while the flexible rubber cap fits tightly over the keyhole to keep away dust and moisture. Its hardened construction and black finish are described as resisting breakage or rusting. Kohree also advises removing the lock after use and storing it indoors to protect longevity, a maintenance step owners should account for in their towing routine.

Skip it if you need a stated 3-1/2-inch effective pin length and four anti-rattle rings; JUSTTOP lists both for its receiver lock.

This suits Class III and IV receiver owners who want a capped keyhole and can remove and store the lock indoors after use. The supplied fit information does not specify receiver widths, so check the listed class against your setup.

Listed on Amazon as: Kohree Trailer Hitch Lock Set, 5/8 Inch, for Class III IV Receivers

#10

10. Master Lock 379ATPY Coupler Lock

• Weight: 16 oz
• Material: Alloy Steel
• Material Type: Alloy Steel

Best for: For visible coupler deterrence.

Why it ranks #10: This is a coupler lock for 1-7/8-inch, 2-inch, and 2-5/16-inch couplers, not a receiver hitch-pin lock for the primary use case.

A bright red finish is the Master Lock coupler lock’s most visible differentiator, helping make a secured trailer connection conspicuous. Unlike a receiver pin, this product is specified for 1-7/8-, 2-, and 2-5/16-inch couplers, so it addresses owners locking the trailer coupler itself.

The three listed coupler sizes cover common 1-7/8-, 2-, and 2-5/16-inch connections, giving owners a way to secure the trailer at the coupler rather than through a receiver. Its advanced locking mechanism is described as resisting picking and prying, while the bright red finish discourages unwanted attention. Simple installation and removal support routine hitching workflows, and stated resistance to rust and corrosion is useful for a lock exposed to outdoor use.

Skip it if you need a locking pin through a receiver; Master Lock 1469DAT is a receiver lock with an extended shaft for 2- and 2.5-inch hitches.

Choose this for a trailer owner who wants a visible lock at a compatible coupler and values straightforward installation and removal. It is a coupler lock, so it is not the right format for securing a receiver pin.

Listed on Amazon as: Master Lock Trailer Lock, Trailer Hitch Lock fits 1-7/8",2" & 2-5/16" Red