Top 9 Trailer Coupler Locks of March 2023

Coupler Lock,Universal

Trailer hitch lock fits 1-7/8 in. (48mm), 2 in. (51mm) and most 2-5/16 in. (59mm) trailer couplers

Trailer lock is best used for vehicles, trailers, and RVs

Trailer coupler lock features advanced locking mechanism to resist picking and prying

Trailer hitch lock is constructed from zinc to resist rust and corrosion

Includes one trailer coupler lock, two keys

LOCK APPLICATION: Best used for vehicles, trailers, and RV hitch locks

EASE OF USE: Six locking positions provide maximum flexibility; Rekeyable cylinder offers keyed-alike convenience

DURABLE DESIGN: Water-tight cap protects trailer hitch lock from moisture and dirt

SPECIFICATIONS: Coupler lock adjusts from 9/16 in. to 2-3/4 in. length

INCLUDES: One trailer coupler latch lock, two keys

✅FIT: Funmit trailer coupler lock are designed to fit snugly in 1-7/8”, 2”, 2-5/16” couplers and ratchet is adjustable with 11 locking positions. Each ratchet is tightly engaged with the lock body, it will never be pulled open by brute force like other coupler locks!

✅HIGH QUALITY: The u-shape trailer lock is made of heavy-duty solid /rigid A36 Steel and aluminum alloy,it's durable, rustproof and weatherproof. Passed QC product quality certification

✅SAFETY: The trailer hitch lock is made of high-quality materials and combines with the last anti-theft technology to ensuresafety,and the U-shape lock can resist picking, prying and drilling

✅CONVENIENT: It is easy and quick for you to install and remove,and bright yellow color can provide high visibility

✅WARRANTY 100%: The replacement trailer locks come with a 90 day manufacturer limited warranty back by Funmit, you can feel a 100% confident buy and enjoy a 24 hours pro tech online help any time

One size fits all (from 1-7/8", 2", to 2-5/15", all coupler types).Fit Type: Universal Fit

New design can be used as a Universal Coupler Lock or U-Lock

Dual ratchet lock System

Rust proof hammer tone epoxy finish

Key hole cover keeps out dirt

Fit Type: Universal Fit

CZC AUTO Trailer Hitch Coupler Locking Pin Design：1/4 Inch diameter tongue lock pin with effective length 3/4 Inch. Small size for easy carrying. Keeping the coupler lock in your pocket or vehicle anywhere that is fine. Please verify dimension and length of the pin you want before purchasing our coupler hitch lock pin.

How To Operate Our Trailer Tongue Coupler Lock: Spinning the flat key 5-7 times to open or close the hitch lock.

Security Of Our Coupler Locking Pin: This trailer lock is made of high-strength steel to deter theft. The hitch lock is coated with black electrophoretic paint to prevent corrosion.

Coupler Locking Hitch Pin's Application: Tow Trailer Boat RV Truck Car

CZC AUTO, a reliable brand in Hitch Sercurity Industry, we offer 30-day money-back for any reason, 12-month warranty for quality-related issues.

This Master Lock protects and guards against tow-away theft. The lock works when the trailer is either connected to the tow vehicle or when the trailer is unattached. The lock prevents the coupler latch from moving, therefore preventing either the coupler to be removed from the ball, or not allowing a ball to be placed into the coupler.

Fits UFP and surge brake couplers. K1 key blank

Pin length or dimensional fit is 3-1/2" wide with a 9/32" diameter pin which is a standard size on virtually all couplers.

Chrome plated for improved wear and corrosion resistance. It has a precision 4 pin tumbler mechanism that resists picking

Weather Tough seal and water tight cap protects the lock from the elements

AMERICAN OWNED, FAMILY OPERATED - Join the Rhino Family & Support a USA based Father/Son Business!

PROTECTED FROM THE ELEMENTS - Powder Coated Protection Layer to Prevent Rust, Corrosion & Weathering

FITS MOST 2 INCH COUPLERS - Maximum Coupler Lip Width 3-3/4" Maximum Coupler Lip Height is 3/8"

CONFIDENCE & PEACE OF MIND - Knowing your Boats, Toy Hauler or Trailer is Protected From Theft.

GUARANTEED 5-STAR EXPERIENCE - If you aren't 100% Satisfied for any Reason well Refund your Money

This listing is for THREE (3) padlocks keyed alike (same key unlocks all) and six keys. The lock is also available with Bump Stop Technology. Search 37NKA in our storefront.

APPLICATION: These padlocks are ideal for all outdoor applications when needing multiple locks that utilize ONLY one key. The #37 latch lock works well on 1-7/8 and 2 inch couplers and on virtually all standard hasp applications. These locks have a removable shackle sleeve. Sleeve off - Secures coupler latches. Sleeve on - Works best with hasps. KEY RETAINING - ensures that padlock is not left unlocked.

PADLOCK FEATURES: 1-9/16"(21mm) wide x 3"(76mm) high. Armored Shackle Guard blocks bolt cutters. Revolving, case-hardened steel shackle sleeve resists cutting and sawing. Removable shackle sleeve. Sleeve off - Secures coupler latches to accommodate openings 9/32" (7mm) in diameter. Sleeve on - Works best with hasps, fits openings 1/2" (13mm) in diameter or larger. Precision pin tumbler mechanism resists picking.

IMPORTANT NOTE: If using this style lock on a trailers coupler latch please be aware it is NOT recommended for all 2-5/16 couplers. It will fit some 2-5/16 couplers, the exception being 2-5/16 couplers that have the latch partially recessed from the top surface of the coupler, or latches that are wider than 7/8.

ATTENTION: If you order two 3-packs they will NOT necessarily be keyed the same. To ensure you get two 3-packs keyed alike, you must order the 6-pack.