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Specifications: usable length of receiver pin is 3-1/2 in. Stainless steel lock fits 5/8 in. Ease of use: receiver lock features convenient Push to Lock locking mechanism: push lock body firmly onto the pin and remove key.





It also rotates less rigidity making it harder to break with sledge hammer force. Each lock comes with two keys, therefore you will receive a total of six keys with the purchase of this 3 pack. This simple design is difficult to defeat because when it's locked on the trailer the lock rests on top of the coupler see image thus thwarting blunt force from downward hammer strikes.
Made with reinforced zinc die-cast resists rust and corrosion. This is a set of 3 keyed alike trailer coupler/tongue locks and is ideal when needing multiple locks that utilize ONLY one key. And is simple to install and remove. Zinc alloys offer high strengths to 60, plastics, 000 psi and superior elongation for strong designs and formability for bending, crimping and riveting operations. Each lock weighs 2. 4 lbs.


1. Master Lock
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And 2-5/16" Couplers, Universal Size Fits 1-7/8", 2", Trailer Locks #389DAT, Master Lock
#adMaster Lock #ad - Universal coupler lock fits virtually all 1-7/8", 2", and 2-5/16" trailer couplers. Simple installation and removal. Advanced locking mechanism resists picking and prying.More information #ad
This lock protects unattended trailers and guards against tow-away theft. Resists rust and corrosion. The bright red finish discourages thiefs from messing with your trailer.Brand | Master Lock #ad |
Manufacturer | Master Lock #ad |
Height | 7.5 Inches |
Length | 6.5 Inches |
Weight | 1 Pounds |
Width | 4 Inches |
Part Number | 389DAT |
Model | 389DAT |
Warranty | MASTER 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 www.masterlock.com or 1.800.464.2088 for instructions on obtaining repair or replacement. |
More information #ad
2. Master Lock
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Master Lock 379ATPY Universal Trailer Hitch Lock , Black
#adMaster Lock #ad - 59mm trailer couplers. Trailer hitch lock is constructed from zinc to resist rust and corrosion. 51mm and most 2-5/16 in. Includes one trailer coupler lock, two keys.More information #ad
Trailer lock is best used for vehicles, trailers, and RVs. Trailer hitch lock fits 1-7/8 in. Trailer coupler lock features advanced locking mechanism to resist picking and prying. 48mm, 2 in.Brand | Master Lock #ad |
Manufacturer | Master Lock #ad |
Height | 4.6 inches |
Length | 5.1 inches |
Weight | 2 Pounds |
Width | 3.5 inches |
Part Number | 379ATPY |
Model | 379ATPY |
Warranty | 1 year manufacturer |
More information #ad
3. Master Lock
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1469DAT, Weather Resistant Automotive Receiver Lock, Stainless Steel Barbell™ Receiver Lock, Fits 5/8 in. Receivers, Master Lock Receiver Lock
#adMaster Lock #ad - 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.Specifications: usable length of receiver pin is 3-1/2 in. Stainless steel lock fits 5/8 in. Ease of use: receiver lock features convenient Push to Lock locking mechanism: push lock body firmly onto the pin and remove key.
More information #ad
Includes: one trailer reciver lock, two keys. Lock application: Best used for vehicles, trailers, and RV hitch locks. 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.Brand | Master Lock #ad |
Manufacturer | Master Lock #ad |
Height | 2 Inches |
Length | 8 Inches |
Weight | 0.7 Pounds |
Width | 4 Inches |
Part Number | 1469DAT |
Model | 1469DAT |
Warranty | Limited Lifetime Warranty |
More information #ad
4. Master Lock
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Master Lock 1480DAT Stainless Steel Receiver Lock for 5/8 in. Receiver Hole
#adMaster Lock #ad - Master lock headquarters are in Oak Creek, Wisconsin, United States. The product is highly durable and easy to use. Master lock is an American company. The product is manufactured in China.More information #ad
Key retaining for increased safety. Precision 4-pin tumbler mechanism resists picking. Hardened receiver pins for increased sheer strength. K1 key blank for all receiver locks. Easy installation and easy handling.Brand | Master Lock #ad |
Manufacturer | Master Lock #ad |
Height | 1.56 Inches |
Length | 9 Inches |
Weight | 0.82 Pounds |
Width | 4.7 Inches |
Part Number | 1480DAT |
Model | 1480DAT |
Warranty | Limited Lifetime Warranty |
More information #ad
5. Master Lock
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Master Lock 377DAT Trailer Hitch Lock
#adMaster Lock #ad - One of the unique features of this product is the ratcheting shaft which allows it to fit most 1-7/8 inch and 2 inch couplers. 48mm, 2 in. Trailer hitch lock is constructed from zinc to resist rust and corrosion. 59mm trailer couplers.More information #ad
Trailer lock is best used for vehicles, trailers, and RVs. 51mm and most 2-5/16 in. Includes one trailer coupler lock, two keys. Trailer coupler lock features advanced locking mechanism to resist picking and prying. Trailer hitch lock fits 1-7/8 in. Nickel-plated, zinc die-cast body with a front access key-way for ease of accessibility.Brand | Master Lock #ad |
Manufacturer | Master Lock #ad |
Height | 2.68 Inches |
Length | 6.56 Inches |
Weight | 1 Pounds |
Width | 7.5 Inches |
Part Number | 470-377DAT |
Model | 377DAT |
Warranty | LIMITED WARRANTY |
More information #ad
6. Master Lock
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Coupler Lock, 3 Components Keyed Alike, Master Lock 3895DAT, Receiver Lock and Latch Lock
#adMaster Lock #ad - 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.More information #ad
The limited lifetime Warranty provides peace of mind from a brand you can trust. Complete trailer security system KEYED ALIKE. For more detailed information, please click "See More Product Details".Brand | Master Lock #ad |
Manufacturer | Master Lock #ad |
Height | 3.5 Inches |
Length | 9 Inches |
Width | 6.25 Inches |
Part Number | 3895DAT |
Model | 3895DAT |
Warranty | MASTER 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 www.masterlock.com or 1.800.464.2088 for instructions on obtaining repair or replacement. |
More information #ad
7. Master Lock
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377KA, Master Lock Trailer Hitch Lock, Weather Resistant Automotive Hitch Lock with Keys, and Most 2-5/16 in. Trailer Couplers, Fits 1-7/8 in., 2 in.
#adMaster Lock #ad - Trailer hitch lock is constructed from zinc to resist rust and corrosion. 48mm, 2 in. 51mm and most 2-5/16 in. 59mm trailer couplers. Trailer coupler lock features advanced locking mechanism to resist picking and prying.More information #ad
Trailer lock is best used for vehicles, trailers, and RVs. One trailer coupler lock, two keys. Trailer hitch lock fits 1-7/8 in.Brand | Master Lock #ad |
Manufacturer | Master Lock #ad |
Height | 2.8 Inches |
Length | 5.6 Inches |
Width | 4.3 Inches |
Part Number | 377KA |
Model | 377KA |
Warranty | Limited Lifetime Warranty |
More information #ad
8. Master Lock
#ad
3 Keyed Alike Universal Trailer Coupler Locks 379KA-3, Master Lock
#adMaster Lock #ad - Limited Lifetime warranty. The same key opens all three locks. In stock with a delivery time of 1 to 5 days. Rekeyable cylinder for keyed alike convenience with an advanced locking mechanism that resists picking and prying. Few materials provide the strength and toughness of zinc alloys.It also rotates less rigidity making it harder to break with sledge hammer force. Each lock comes with two keys, therefore you will receive a total of six keys with the purchase of this 3 pack. This simple design is difficult to defeat because when it's locked on the trailer the lock rests on top of the coupler see image thus thwarting blunt force from downward hammer strikes.
More information #ad
The universal trailer coupler lock fits 1-7/8in 48mm, hammerblow, lainson, 2in 51mm and most 2-5/16in 59mm couplers by Reese, Dutton, Putnam, Shelby, Atwood, Valley, Fulton, and UFP. Made with reinforced zinc die-cast resists rust and corrosion. This is a set of 3 keyed alike trailer coupler/tongue locks and is ideal when needing multiple locks that utilize ONLY one key. And is simple to install and remove. Zinc alloys offer high strengths to 60, plastics, 000 psi and superior elongation for strong designs and formability for bending, crimping and riveting operations. Each lock weighs 2. 4 lbs.
Brand | Master Lock #ad |
Manufacturer | Master Lock #ad |
Weight | 2.4 Pounds |
Part Number | B007C4US1S |
Model | 379KA-3 |
Warranty | MASTER 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 www.masterlock.com or 1.800.464.2088 for instructions on obtaining repair or replacement. |
More information #ad
9. Master Lock
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Trailer Coupler & Receiver Lock Combo Pack, 3794DAT , Red, Master Lock Trailer Lock
#adMaster Lock #ad - Lock application: Best used for vehicles, trailers, and RV hitch locks. Includes: one trailer coupler lock, one receiver lock, one trailer coupler latch lock; two keys both keys open all three locks. And most 2-5/16 in. Durable design: weather Tough seal and watertight cap provide protection from moisture and dirt.More information #ad
To 2-3/4 in. Fits 1-7/8 in. 2 in. Couplers. Ease of use: receiver lock features convenient Push to Lock locking mechanism: push lock body firmly onto the pin and remove key. Specifications: stainless steel trailer coupler lock adjusts from 9/16 in.Brand | Master Lock #ad |
Manufacturer | MASTER LOCK #ad |
Height | 4 Inches |
Length | 10 Inches |
Weight | 1 Pounds |
Width | 5 Inches |
Part Number | 3794DAT |
Model | 3794DAT |
Warranty | 1 year manufacturer |
More information #ad
10. Master Lock
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Master Lock 1481DAT Stainless Steel Barbell Receiver and Adjustable Coupler Lock Set
#adMaster Lock #ad - Stainless steel keyed alike receiver lock and coupler latch lock. 5/8 inch receiver lock has Push to Lock locking mechanism push lock body onto pin firmly and remove key.More information #ad
Usable length of receiver pin is 2-3/4 inch. Adjustable coupler latch lock, locks from 9/16 inch to 2-3/4 inch. Weather tough seal and water tight cap protects lock from moisture.Brand | Master Lock #ad |
Manufacturer | Master Lock #ad |
Height | 8.88 Inches |
Length | 7 Inches |
Weight | 2 Pounds |
Width | 5.75 Inches |
Part Number | 1481DATSC |
Model | 1481DATSC |
More information #ad