Top 10 Lunette Ring Lock – Towing Hitch Locks

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1. Trimax


Trimax TLR51 Lunette Tow Ring Lock

Trimax #ad - Includes 2 rugged keys. Made from heavy Duty water resistant metal alloy. Maximum security for unattended Pintle hook trailers. Easy to install. Fits 2-7/8" inside diameter.
BrandTrimax #ad
ManufacturerTrimax #ad
Height3.31 Inches
Length2.09 Inches
Weight2.8 Pounds
Width1.65 Inches
Part NumberTLR51

2. Draw-Tite


Draw-Tite Reese Towpower 4210 Lunette Eye Lock

Draw-Tite #ad - 5 inches x 5 inches. Rust resistant. Accepts most 1/2 inch pad locks sold separately. Steel construction with a Yellow powder coat finish. Fits all 2-1/2 inch and 3 inch Lunette eyes.
BrandDraw-Tite #ad
ManufacturerReese Towpower #ad
Height0 Inches
Length0 Inches
Weight3.7 Pounds
Width0 Inches
Part Number4210

3. Blaylock American Metal


Blaylock TL-60 Pintle, Lunette and Drawbar Lock

Blaylock American Metal #ad - Patented design secures two cast aluminum discs with a solid steel locking pin. Fits 2. 5" to 3" eyes on tandem dump trucks, on-site generators, etc. Hand forged with the highest quality aircraft grade aluminum. Designed for use in the industrial, farm and ranch, and heavy machinery industries.
BrandBlaylock American Metal #ad
ManufacturerBlaylock American Metal #ad
Height4.2 Inches
Length8.5 Inches
Weight3.16 Pounds
Width4.4 Inches
Part NumberTL-60

4. Universal Boot Inc.


Universal Boot Inc. Aluminum Lunette Ring Coupler Lock 3 Inch Keyed Different

Universal Boot Inc. #ad - High security key, blanks available. High security design. Rust-proof lock body. No shackle exposed. Ultra simple 3-second drop-in installation.
BrandUniversal Boot Inc. #ad
ManufacturerUniversal Boot Inc. #ad
Part NumberPF-07-3.0
WarrantyFull, non-nonsense manufacturer's warranty against manufacturing or quality defects. If there's any issue, just give us a call and we'll sort it out.

5. Buyers Products


Buyers Products BDL253 Drawbar Lock with 2-1/2" to 3" Housing

Buyers Products #ad - Deter theft: this draw bar lock is corrosion resistant and fits into all standard 2-1/2 to 3 inch lunette eyes. Drawbar lock: this zinc plated drawbar Lock from Buyers Products helps deter trailer theft by filling the eye of your drawbar when not in use.

Durable and dependable: founded in 1946, innovation, buyers Products has become a leader in the truck equipment industry though our commitment to customer care, and value across our range of products. Our teams are staffed with engineers and experts who know how to make a product exceptional. More than just parts: from snow and ice equipment to toolboxes, towing, hydraulics, truck and trailer hardware to our innovative lighting products—it’s amazing what Buyers Products can do for your truck.

The lock's padlock hole easily accommodates most 1/2 inch diameter padlocks. We do things the right way: we design products like we we’re building them for ourselves, because we are.
BrandBuyers Products #ad
ManufacturerBuyers Products #ad
Height5.2 Inches
Length5 Inches
Weight3.8 Pounds
Width5 Inches
Part NumberBDL253

6. Proven Industries


Heavy Duty Design, All Steel, Anti-Theft Trailer Coupler Lock fits Pintle-Lunette Blue, Proven Locks PL2

Proven Industries #ad - Patented design secures 2 steel disks with a solid steel locking pin. Fits 3” eyes. For tandem dump trucks, on-site generators, etc. Hand forged in the usa using the highest quality steel. Ultimate protection against theft - EASY TO INSTALL.
BrandProven Industries #ad
ManufacturerProven Industries, Inc #ad
Part NumberPL2

7. InSite Solutions


Red, Durable, Secure Trailer Hitch Lock, Equipment Lock BRHL, Steel Ball and Ring Hitch Lock, Electro-Plated and Powder Coated Finish, Trailer Accessories

InSite Solutions #ad - Universal fit trailer locks: universal for any size ball: 1-7/8", 2", 2-5/16" or ring/pintle type hitch: Built with 3/8" plate steel.

Durable, tough trailer lock: locks for any ball and ring type trailer hitch: BRHL universal theft protection locks for earth moving equipment and trailers. Easy installation: Easy to follow instructions to ensure maximum protection for your trailer to moving equipment. High quality ball hitch lock: High security lock, made with quality material: Electro-plated and power coated finish to ensure no rust. Key system: barrel key lock for greater protection: Includes 2 tubular lock keys.
BrandInSite Solutions #ad
ManufacturerThe Equipment Lock Company #ad
Height4.1 Inches
Length8.1 Inches
Weight1 pounds
Width5.7 Inches
Part NumberBRHL

8. Reese


Adjustable Storage Security, Heavy-Duty Steel, REESE Towpower 72783 Universal Coupler Lock

Reese #ad - Deters theft: bright, deterrent yellow color is durable, highly visible, and an essential accessory to all types of trailers. Guards against truck or trailer towaway theft in storage. Built to last: the reese towpower universal Coupler lock is a premium lock constructed with an aluminum body and heavy-duty steel lock bar. Dimensions: 9” x 9” x 3”. Secure protection: easy-to-install lock resists picking, prying and drill outs. Universal fit: ratchet design is adjustable with 11 locking positions and fits 1-⅞”, 2”, and 2-5/16” couplers.
BrandReese #ad
ManufacturerReese Towpower #ad
Height9 Inches
Length9 Inches
Weight1 pounds
Width3 Inches
Part Number72783
Warranty1 Year



Fits 2-1/2-Inch Lunette Ring, 20,000 lbs, CURT 48004 Pintle Hook Hitch for 2-Inch Receiver

CURT #ad - Versatile towing. To ensure a reliable connection to your trailer, this pintle hitch comes with a spring-loaded arm. It is rated for a pintle capacity of 20, 000 lbs. The pintle hook can be coupled to virtually any lunette ring with a 2-1/2-inch inside diameter.

This pintle hook hitch equips your truck to tackle heavy-duty towing jobs in construction, agriculture, military settings and more. Convenient fit. This pintle hook is shielded in a highly durable powder coat finish for long-lasting resistance to rust, snow, in spite of rain, chipping and UV damage, mud and other outdoor elements. The body is constructed from solid forged steel to promote maximum towing strength.

Get more done with the superior towing capacity of this pintle hook hitch. The arm locks down onto the hook and can be secured with the included safety pin. For maximum convenience and an easy installation whenever needed, this pintle hitch features a 2-inch x 2-inch shank to fit virtually any industry-standard 2-inch hitch receiver. Weather-resistant. Secure connection. Dependable strength.
BrandCURT #ad
ManufacturerCurt Manufacturing #ad
Height3.5 Inches
Length14.75 Inches
Weight16 Pounds
Width5.88 Inches
Part Number48004
WarrantyManufacturer Warranty

10. Master Lock


And 2-5/16" Couplers, Trailer Locks #389DAT, Master Lock, Universal Size Fits 1-7/8", 2"

Master Lock #ad - The similar 379KA coupler locks are available keyed alike. Universal coupler lock fits virtually all 1-7/8", 2", and 2-5/16" trailer couplers. Simple installation and removal. This lock protects unattended trailers and guards against tow-away theft. Resists rust and corrosion. We can not key two 2 of these locks the same. Advanced locking mechanism resists picking and prying. The bright red finish discourages thiefs from messing with your trailer. The only difference between this one 389DAT and the 379KA is the color.
BrandMaster Lock #ad
ManufacturerMaster Lock #ad
Height7.5 Inches
Length6.5 Inches
Width4 Inches
Part Number389DAT
WarrantyMASTER LOCK PRODUCT WARRANTY Limited Lifetime Warranty Master Lock Company LLC (“Master Lock”) grants the following warranty: If this product or any part of the product fails due to a defect in materials or workmanship at any time during the life of the product, Master Lock will, at its own discretion, repair or replace the product or part free of charge. Simply contact Master Lock at or 1.800.464.2088 for instructions on obtaining repair or replacement.