Top 10 Trailer Lock Kit – Towing Hitch Locks

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1. Master Lock


3 Components Keyed Alike, Master Lock 3895DAT, Coupler Lock, Receiver Lock and Latch Lock

Master Lock #ad - Complete trailer security system KEYED ALIKE. 1 coupler lock, 1 receiver lock & 1 latch lock all keyed alike; 1 key opens all 3 locks. This lock set can not be keyed alike with other locks nor can 2 of these lock sets be keyed alike. For more detailed information, please click "See More Product Details". The limited lifetime Warranty provides peace of mind from a brand you can trust.
BrandMaster Lock #ad
ManufacturerMaster Lock #ad
Height3.5 Inches
Length9 Inches
Width6.25 Inches
Part Number3895DAT
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.

2. Reese


Reese Towpower 7014700 Tow 'N Store Lock Kit, Yellow

Reese #ad - Designed to provide excellent towing. Includes swiveling clip. Includes swiveling clip. Lockable offering extra safety. Easy to install.
BrandReese #ad
ManufacturerReese Towpower #ad
Height6 Inches
Length6 Inches
Weight2.8 Pounds
Width3.7 Inches
Part Number7014700
Warranty1 Year



WHSSFINE Trailer Lock Kit Keyed Alike Coupler Lock Tongue and Hitch Receiver Lock with 5/8 and 1/2 Inch Pins Fit Class I II III IV V Receiver to Secure Trailer for Towing and Storage

WHSSFINE #ad - Trailer hitch lock - 1/2" and 5/8" hitch pin lock set for class i, class iv, 2" x 2", class ii, and Class V Receivers - 1.25" x 1. 25", class iii, and 2.

5" x 2. 5". Heavy duty lock - solid hardened steel lock with power coat finish provide great corrosion protection, to help protect your trailer from theft. Trailer coupler tongue lock - padlock style with a 1/4-inch diameter pin, this trailer coupler lock fits latch-type couplers with a maximum span of up to 3/4 inches. Trailer coupler ball lock - ratchet design is adjustable with 11 locking positions and fits 1-7/8”, 2”, and 2-5/16” couplers. Keyed alike - come with 6 keys, 4 locks utilize one key, same key works on all pieces, no need to have multiple keys cluttering up your keychain.
ManufacturerWHSSFINE #ad
Part NumberNYN-TCS-4PCS

4. Master Lock


Red, Master Lock Trailer Lock, Trailer Coupler & Receiver Lock Combo Pack, 3794DAT

Master Lock #ad - To 2-3/4 in. Fits 1-7/8 in. 2 in. Ease of use: receiver lock features convenient Push to Lock locking mechanism: push lock body firmly onto the pin and remove key. And most 2-5/16 in. Includes: one trailer coupler lock, one receiver lock, one trailer coupler latch lock; two keys both keys open all three locks. Specifications: stainless steel trailer coupler lock adjusts from 9/16 in. Durable design: weather Tough seal and watertight cap provide protection from moisture and dirt. Lock application: Best used for vehicles, trailers, and RV hitch locks. Couplers.
BrandMaster Lock #ad
ManufacturerMASTER LOCK #ad
Height4 Inches
Length10 Inches
Weight1 Pounds
Width5 Inches
Part Number3794DAT
Warranty1 year manufacturer

5. Trimax


Trimax TCP100 Combo Pack-UMAX100-TC123-TS32 w/Carrying Case

Trimax #ad - Set includes umax100, TC1 and TS32. Rugged key won't bend or break. Crafted from the highest quality material. Made in China. Perfect for outdoor and even indoor use. All products keyed alike. Complete towing security kit.
BrandTrimax #ad
ManufacturerTrimax Locks - Wyers Products #ad
Height12 Inches
Length4.4 Inches
Weight7.1 Pounds
Width9.4 Inches
Part NumberTCP100
WarrantyManufacturer Warranty

6. Master Lock


5 Trailer Locks Keyed Alike #5KA-37940-37, Master Lock

Master Lock #ad - Multiple 5ka trailer lock packages can be keyed alike. If you ordered a quanity of 2, 3 etc we would automatically key them all the same.

Round padlocks 2-3/4" 70mm wide laminated stainless steel body resists corrosion. Latch lock doesn't fit some 2-5/16" couplers. Coupler lock fits 1-7/8", 2" & 2-5/16" couplers. In stock with a delivery time of 1 to 5 business days. For 2-5/16 couplers the better lock set is: Master Lock - 5 Trailer Locks Keyed Alike 5KA-37940-3. Total trailer security Keyed Alike - One key opens all five 5 locks. See description below for latch lock #37 applications.
BrandMaster Lock #ad
ManufacturerMaster Lock #ad
Part Number5KA-37940-37

7. Master Lock


Master Lock, 6 Trailer Locks Keyed Alike #6KA-3796230-37

Master Lock #ad - See description below for latch lock #37 applications. Coupler lock fits 1-7/8", 2", & 2-5/16" couplers. If you ordered a quanity of 2, 3 etc we would automatically key them all the same.

For 2-5/16 couplers the better lock set is: master Lock - 6 Trailer Locks Keyed Alike #6KA-3796230-3. Multiple 6ka trailer lock packages can be keyed alike. Three 3 high security 6230KA padlocks. Latch lock doesn't fit some 2-5/16" couplers. See description below for latch lock #37 applications. Total trailer security keyed alike - One key opens all six locks. Each lock comes with two keys, for a total of twelve keys.
BrandMaster Lock #ad
ManufacturerMaster Lock #ad
Height1 Inches
Length1 Inches
Width1 Inches
Part Number6KA-3796230-37



5/8” Dia 3-1/2” Long Trailer Hitch Lock Receiver Pin Lock for Class III IV Receiver, 1/4” Dia Trailer Coupler Lock with 3/4” Inch Span, METOWARE Keyed Alike Trailer Hitch Receiver& Coupler Lock Kit

METOWARE #ad - It is reliable for long-term hauling and is secure for full protection, camper and so on from theft. And the dust cap aims to keep the keyhole away from water and dirt, great design for easier using. Safe & easy to use coupler lock - our coupler locks are easy to operate with screw-type locking action -- just turn the key 5-7 times to open or lock, save your time and effort.

Safe & easy to use reciever lock - our trailer coupler lock is designed for easy operation. Receiver lock feature - the trailer hitch receiver lock pin is designed with 5/8" diameter and 3-1/2” long to make it works well with class III IV hitches, big towing vehicle, truck, 2” 2-1/2” hitch receiver. Coupler lock features – made of premium strength steel and coated with electrophoretic paint, boat, safely protecting your trailer, our trailer hitch is durable and rust-proof.

With the push-to-lock design, you can easily push to lock it without using key. Metoware keyed alike trailer hitch receiver& coupler lock kit, 5/8” dia 3-1/2” long trailer hitch lock Hitch Receiver Pin Lock for Class III IV Receiver, 1/4” Dia Trailer Hitch Coupler Lock with 3/4” Inch Span. Please confirm your required size or email us for more suggestion before having the order. To open it, just turn the key a little bit and the pin will pop out by itself. The tow hitch can be installed quickly and easily so that you can hoop up and head out right away.
ManufacturerMETOWARE #ad
Part Number47272

9. Reese


Grey, Reese Towpower 7088300 Heavy Duty Coupler Lock

Reese #ad - Ratchet design with eleven locking positions. Universal, fits all couplers. Bright theft deterrent silver. Fits 1-7/8, 2 and 2-5/16 inch trailers. Two theft proof square keys are included. Secures trailer when not being towed.
BrandReese #ad
ManufacturerReese Towpower #ad
Height0 Inches
Length0 Inches
Weight3.15 Pounds
Width0 Inches
Part Number7088300
Warranty1 Year

10. DEF


DEF Coupler Lock Hitch Trailer Lock with 2 Keys Heavy-Duty Steel Fits 1-7/8" 2" and 2-5/16" Replaces#72783 Yellow and Chrome

DEF #ad - Easy to assemble. Safety:help prevent tow away, Heavy Duty cast Steel universal coupler lock. Easy and quick to install and remove. These u-shaped locks fit over the coupler on the trailer's tongue and prevents someone else from hooking up his vehicle to your trailer. Fully adjustable universal fit. Compatibility: ratchet design is adjustable with 11 locking positions and fits 1-7/8", 2", and 2-5/16" couplers. Bright yellow color is durable, highly visible, and an essential accessory to all types of trailers.
BrandDEF #ad
ManufacturerBeauty-Life #ad
Part NumberBL-TOOL127