Daisy
Last Updated: Feb 6, 2026
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| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Certified Wholesale Supply | 9.81 | ✅ | ✅ | ✅ |
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
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
One trailer coupler lock, two keys
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| LocksChocksTiedowns | 9.89 | ✅ | ✅ | ✅ |
For more DETAILED information, please click "See More Product Details".
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.
The Limited Lifetime Warranty provides peace of mind from a brand you can trust.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
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
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
LOCK APPLICATION: Best used for vehicles, trailers, and RV hitch locks
EASE OF USE: Receiver lock features convenient Push to Lock locking mechanism: push lock body firmly onto the pin and remove key
DURABLE DESIGN: Weather Tough seal and watertight cap provide protection from moisture and dirt; Hitch lock is rated for Class III/IV 10,000 pound load
SPECIFICATIONS: Usable length of receiver pin is 3-1/2 in.; Stainless steel lock fits 5/8 in. receiver openings; Extended length shaft fits Toyota Tundra, Ford F-150/F-250/F-350, GMC/Chevy 2500/3500 and Dodge trucks with heavy-duty tow packages
INCLUDES: One trailer reciver lock, two keys
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
LOCK APPLICATION: Best used for vehicles, trailers, and RV hitch locks
EASE OF USE: Receiver lock features convenient Push to Lock locking mechanism: push lock body firmly onto the pin and remove key
DURABLE DESIGN: Weather Tough seal and watertight cap provide protection from moisture and dirt
SPECIFICATIONS: Usable length of receiver pin is 2-3/4 in.; Stainless steel lock fits 1/2 in. and 5/8 in. receiver openings
INCLUDES: One receiver lock, one stainless steel coupler latch lock, two keys; both keys open both locks
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Coupler lock is best used for trailers; Works best with Straight Tongue Trailer Couplers
Advance locking mechanism resists picking and prying
Designed to resist rust and corrosion
Fits 2-5/16 in. (59 mm) trailer couplers; Does not fit Gooseneck Trailer Couplers
Includes one trailer coupler lock, two keys
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
LOCK APPLICATION: Best used for vehicles, trailers, and RV hitch locks
EASE OF USE: Receiver lock features convenient Push to Lock locking mechanism: push lock body firmly onto the pin and remove key
DURABLE DESIGN: Weather Tough seal and watertight cap provide protection from moisture and dirt
SPECIFICATIONS: Stainless steel trailer coupler lock adjusts from 9/16 in. to 2-3/4 in.; Fits 1-7/8 in., 2 in. and most 2-5/16 in. couplers
INCLUDES: One trailer coupler lock, one receiver lock, one trailer coupler latch lock; two keys (both keys open all three locks)
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Best used for vehicles, trailers, and RV hitch locks
Trailer hitch lock is easy to install and remove
Trailer coupler resists rust and corrosion; Advanced locking mechanism resists picking and prying
Fits most 1-7/8 in. (48 mm), 2 in. (51 mm) and 2-5/16 in. (59 mm) couplers: Reese, Fulton, Valley, Atwood, Shelby, Putnam, Hammerblow, Dutton Lainson, UFP
Includes one coupler lock, two keys
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Master Lock | 9 |
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