Shop testing trailer coupler lock

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$187.80
Master Lock Universal Trailer Coupler Lock, Fits Most 1-7/8", 2" And 2-5/16" Couplers - 389DAT - Pkg Qty 4
Global Industrial
16K+
$187.80
Master Lock Universal Trailer Coupler Lock, Fits Most 1-7/8", 2" And 2-5/16" Couplers - 389DAT - Pkg Qty 4
Global Industrial
16K+
$66.95
Master Lock Trailer Coupler Lock, 2-5/16" - 378DAT
Global Industrial
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$66.95
Master Lock Trailer Coupler Lock, 2-5/16" - 378DAT
Global Industrial
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$72.79
Reese 3-Pack Keyed Alike Universal Trailer Coupler Lock Surround Lock Fits 1-7/8 Inch 2 Inch 2-5/16 Inch Ball Couplers 72783KA X3
Hitch Expo
$72.79
Reese 3-Pack Keyed Alike Universal Trailer Coupler Lock Surround Lock Fits 1-7/8 Inch 2 Inch 2-5/16 Inch Ball Couplers 72783KA X3
Hitch Expo
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Master Lock - Universal Size Fits 1-7/8", 2", And 2-5/16" Couplers - Trailer Locks 389DAT, 3 Pack
Amazon.com
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Master Lock - Universal Size Fits 1-7/8", 2", And 2-5/16" Couplers - Trailer Locks 389DAT, 3 Pack
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Master Lock - Universal Size Fits 1-7/8", 2", And 2-5/16" Couplers - Trailer Locks 389DAT, 4 Pack
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Master Lock - Universal Size Fits 1-7/8", 2", And 2-5/16" Couplers - Trailer Locks 389DAT, 4 Pack
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$194.11
Reese 8-Pack Keyed Alike Universal Trailer Coupler Lock Surround Lock Fits 1-7/8 Inch 2 Inch 2-5/16 Inch Ball Couplers 72783KA X8
Hitch Expo
$194.11
Reese 8-Pack Keyed Alike Universal Trailer Coupler Lock Surround Lock Fits 1-7/8 Inch 2 Inch 2-5/16 Inch Ball Couplers 72783KA X8
Hitch Expo
$17.41
Master Lock 1471DAT Trailer Coupler Latch Lock, 3-4/10" Long Shackle X 9/32" Diameter Pin
Amazon.com
1K+
$17.41
Master Lock 1471DAT Trailer Coupler Latch Lock, 3-4/10" Long Shackle X 9/32" Diameter Pin
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$39.81
Master Lock Black Universal Size Trailer Hitch Lock, Trailer Coupler Lock For Securing Rvs, Horse Trailers, Tool Trailers And More, 379ATPY
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Master Lock Black Universal Size Trailer Hitch Lock, Trailer Coupler Lock For Securing Rvs, Horse Trailers, Tool Trailers And More, 379ATPY
Amazon.com
4K+
$59.49
$63.69
Master Lock 378DAT Trailer Coupler Lock, 2-5/16-Inch
Amazon.com
887
Free shipping
$59.49
$63.69
Master Lock 378DAT Trailer Coupler Lock, 2-5/16-Inch
Amazon.com
887
$77.84
BOLT Trailer Coupler Lock - 1-7/8", 2", And 2-5/16" Couplers - For Late Model GM Key BL7032490
etrailer.com
6
$77.84
BOLT Trailer Coupler Lock - 1-7/8", 2", And 2-5/16" Couplers - For Late Model GM Key BL7032490
etrailer.com
6
$89.99
2026 Upgraded Trailer Lock Fits 2-5/16 Inch Coupler, Heavy Duty Trailer Hitch Locks, Anti-Theft Trailer Coupler Lock For RV/Trailer/Cargo/Boat/Camper/
Amazon.com
Free shipping
$89.99
2026 Upgraded Trailer Lock Fits 2-5/16 Inch Coupler, Heavy Duty Trailer Hitch Locks, Anti-Theft Trailer Coupler Lock For RV/Trailer/Cargo/Boat/Camper/
Amazon.com
Free shipping
$9.99
METOWARE Trailer Coupler Lock Universal Adjustable Heavy-Duty Steel Trailer Hitch Lock, Anti Theft Trailer Ball Lock Towing Lock For Towing Trailer
Amazon.com
245
$9.99
METOWARE Trailer Coupler Lock Universal Adjustable Heavy-Duty Steel Trailer Hitch Lock, Anti Theft Trailer Ball Lock Towing Lock For Towing Trailer
Amazon.com
245
$197.37
Trimax Deluxe Universal Coupler Lock - 2-Pack, Keyed Alike, Fits 1-7/8in. To 2-5/16in. Couplers, 4.5in. Shackle Width, Model UMAX-100-2-KA
Northern Tool
Free shipping
$197.37
Trimax Deluxe Universal Coupler Lock - 2-Pack, Keyed Alike, Fits 1-7/8in. To 2-5/16in. Couplers, 4.5in. Shackle Width, Model UMAX-100-2-KA
Northern Tool
Free shipping
$35.99
METOWARE Trailer Tongue Coupler Lock 1/4" Dia, 3-1/2" Span, Trailer Hitch Lock For Latch-Type Coupler, Black Trailer Pin Lock For Towing Trailer RV
Amazon.com
813
Free shipping
$35.99
METOWARE Trailer Tongue Coupler Lock 1/4" Dia, 3-1/2" Span, Trailer Hitch Lock For Latch-Type Coupler, Black Trailer Pin Lock For Towing Trailer RV
Amazon.com
813
$56.99
$63.99
Harsire Upgraded Trailer Lock Fits 2 5/16 Inch Couplers, Heavy Duty Trailer Hitch Locks, Upgraded Anti-Theft Structure Coupler Lock, Security Trailer
Amazon.com
141
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$56.99
$63.99
Harsire Upgraded Trailer Lock Fits 2 5/16 Inch Couplers, Heavy Duty Trailer Hitch Locks, Upgraded Anti-Theft Structure Coupler Lock, Security Trailer
Amazon.com
141
$493.41
Trimax Deluxe Universal Coupler Lock Set - 5-Pack, Keyed Alike, Fits 1-7/8In., 2in. Or 2-5/16in. Couplers, 4.5in. Shackle Width, Model UMAX-100-5-KA
Northern Tool
Free shipping
$493.41
Trimax Deluxe Universal Coupler Lock Set - 5-Pack, Keyed Alike, Fits 1-7/8In., 2in. Or 2-5/16in. Couplers, 4.5in. Shackle Width, Model UMAX-100-5-KA
Northern Tool
Free shipping
$19.99
TOPICK Trailer Coupler Lock, Universal Coupler Ball Lock, Trailer Security Hitch Locks, Fits 1-7/8", 2", And 2-5/16" Couplers, Matte Black With PVC
Amazon.com
2
$19.99
TOPICK Trailer Coupler Lock, Universal Coupler Ball Lock, Trailer Security Hitch Locks, Fits 1-7/8", 2", And 2-5/16" Couplers, Matte Black With PVC
Amazon.com
2
$26.99
TOPICK Keyed Alike Trailer Coupler Lock Set, Trailer Lock Kit Include Universal Trailer Hitch Lock & Coupler Latch Lock, Heavy-Duty Anti-Theft
Amazon.com
9
$26.99
TOPICK Keyed Alike Trailer Coupler Lock Set, Trailer Lock Kit Include Universal Trailer Hitch Lock & Coupler Latch Lock, Heavy-Duty Anti-Theft
Amazon.com
9
$128.41
PACLOCK's 88-Series Shrouded Trailer Coupler Lock, UCS, High Performance 6-Pin Cylinder, One Lock Keyed To A Number U-Pick! W/ 2 Keys, Stainless Steel
Amazon.com
265
Free shipping
$128.41
PACLOCK's 88-Series Shrouded Trailer Coupler Lock, UCS, High Performance 6-Pin Cylinder, One Lock Keyed To A Number U-Pick! W/ 2 Keys, Stainless Steel
Amazon.com
265
$223.95
Infiniterule Trailer Coupler Lock Kit - 2" Demco Ez-Latch Couplers W/ Hitch Lock & Coupler Lock IR37RR
etrailer.com
$223.95
Infiniterule Trailer Coupler Lock Kit - 2" Demco Ez-Latch Couplers W/ Hitch Lock & Coupler Lock IR37RR
etrailer.com
$206.05
Infiniterule Trailer Coupler Lock Kit - 1-7/8, 2, And 2-5/16 Couplers W/ Hitch Lock & Coupler Lock IR73FR
etrailer.com
$206.05
Infiniterule Trailer Coupler Lock Kit - 1-7/8, 2, And 2-5/16 Couplers W/ Hitch Lock & Coupler Lock IR73FR
etrailer.com
$186.04
Infiniterule Trailer Coupler Lock Kit - 1-7/8, 2, And 2-5/16 Couplers W/ Hitch Lock & Coupler Lock IR83FR
etrailer.com
$186.04
Infiniterule Trailer Coupler Lock Kit - 1-7/8, 2, And 2-5/16 Couplers W/ Hitch Lock & Coupler Lock IR83FR
etrailer.com
$78.98
2025 Updated Trailer Hitch Lock -Anti Theft Coupler Lock Fits 1-7/8", 2" And 2-5/16" Couplers, Heavy Duty Trailer Tongue Lock With Weatherproof
Amazon.com
2
Free shipping
$78.98
2025 Updated Trailer Hitch Lock -Anti Theft Coupler Lock Fits 1-7/8", 2" And 2-5/16" Couplers, Heavy Duty Trailer Tongue Lock With Weatherproof
Amazon.com
2
$101.94
Trimax Deluxe Universal Coupler Lock - Keyed Alike, Fits 1-7/8in. To 2-5/16in. Couplers, 4.5in. Shackle Width, Model UMAX-100-KA
Northern Tool
Free shipping
$101.94
Trimax Deluxe Universal Coupler Lock - Keyed Alike, Fits 1-7/8in. To 2-5/16in. Couplers, 4.5in. Shackle Width, Model UMAX-100-KA
Northern Tool
Free shipping
$139.95
Extreme Duty Coupler Lock Coupler Lock And 1 Locking Pin
Bulletproof Hitches
100
$139.95
Extreme Duty Coupler Lock Coupler Lock And 1 Locking Pin
Bulletproof Hitches
100
$32.99
TOPICK Universal Trailer Hitch Lock Set, Includes Heavy-Duty Coupler Ball Lock & Coupler Latch Lock, Keyed Alike, Anti-Theft, All-Weather Protection
Amazon.com
1
$32.99
TOPICK Universal Trailer Hitch Lock Set, Includes Heavy-Duty Coupler Ball Lock & Coupler Latch Lock, Keyed Alike, Anti-Theft, All-Weather Protection
Amazon.com
1
$54.54
Master Lock 3895DAT Coupler Lock And Receiver Lock Coupler Latch, 1 Pack
Amazon.com
1K+
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$54.54
Master Lock 3895DAT Coupler Lock And Receiver Lock Coupler Latch, 1 Pack
Amazon.com
1K+
$129.99
FORGEDX Stainless Steel Trailer Lock For 2" To 2-5/16" Couplers For Trailers, Rvs, And Boats. (Made In THE USA)
Amazon.com
27
Free shipping
$129.99
FORGEDX Stainless Steel Trailer Lock For 2" To 2-5/16" Couplers For Trailers, Rvs, And Boats. (Made In THE USA)
Amazon.com
27
$43.99
$54.99
Brok Universal Warrior Coupler Trailer Lock | By West Marine
WestMarine
3
20% off
$43.99
$54.99
Brok Universal Warrior Coupler Trailer Lock | By West Marine
WestMarine
3
$31.49
BOLT Trailer Coupler Lock - 1/2" To 3-3/8" Span - Codes To Early Model GM Key BL7025283
etrailer.com
638
$31.49
BOLT Trailer Coupler Lock - 1/2" To 3-3/8" Span - Codes To Early Model GM Key BL7025283
etrailer.com
638
$51.84
$60.34
HQPASFY Hitch Coupler Lock Fits For Bulldog Style Couplers, Hitch Lock With Combination Lock, Heavy Duty Trailer Hitch Lock For Bulldog Style Couplers
Amazon.com
6
Free shipping
14% off
$51.84
$60.34
HQPASFY Hitch Coupler Lock Fits For Bulldog Style Couplers, Hitch Lock With Combination Lock, Heavy Duty Trailer Hitch Lock For Bulldog Style Couplers
Amazon.com
6
$32.99
$35.99
RETRUE Keyed Alike Trailer Lock Set Tow & Store Lock Kit Include Universal Coupler Lock & Dual Hitch Receiver Pin Lock & Trailer Tongue Lock, Black
Amazon.com
427
$32.99
$35.99
RETRUE Keyed Alike Trailer Lock Set Tow & Store Lock Kit Include Universal Coupler Lock & Dual Hitch Receiver Pin Lock & Trailer Tongue Lock, Black
Amazon.com
427
$109.85
Medium Duty Coupler Lock Trailer Lock Set Bundle
Bulletproof Hitches
$109.85
Medium Duty Coupler Lock Trailer Lock Set Bundle
Bulletproof Hitches
$326.02
Trimax Economy Universal Coupler Lock 5-Pack - Keyed Alike, Fits 1-7/8In., 2In., Or 2-5/16in. Couplers, 4-3/4in. Shackle Width, Model UMAX-50-5-KA
Northern Tool
Free shipping
$326.02
Trimax Economy Universal Coupler Lock 5-Pack - Keyed Alike, Fits 1-7/8In., 2In., Or 2-5/16in. Couplers, 4-3/4in. Shackle Width, Model UMAX-50-5-KA
Northern Tool
Free shipping
$29.96
Universal Heavy-Duty Trailer Coupler Lock
USA Fleet Supply
$29.96
Universal Heavy-Duty Trailer Coupler Lock
USA Fleet Supply
$32.39
MASTER LOCK Coupler Lock, Universal, 389DAT
Zoro.com
16K+
$32.39
MASTER LOCK Coupler Lock, Universal, 389DAT
Zoro.com
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Shop testing trailer coupler lock

Sponsored
About our ads
$187.80
Master Lock Universal Trailer Coupler Lock, Fits Most 1-7/8", 2" And 2-5/16" Couplers - 389DAT - Pkg Qty 4
Global Industrial
16K+
$187.80
Master Lock Universal Trailer Coupler Lock, Fits Most 1-7/8", 2" And 2-5/16" Couplers - 389DAT - Pkg Qty 4
Global Industrial
16K+
$66.95
Master Lock Trailer Coupler Lock, 2-5/16" - 378DAT
Global Industrial
4K+
$66.95
Master Lock Trailer Coupler Lock, 2-5/16" - 378DAT
Global Industrial
4K+
$72.79
Reese 3-Pack Keyed Alike Universal Trailer Coupler Lock Surround Lock Fits 1-7/8 Inch 2 Inch 2-5/16 Inch Ball Couplers 72783KA X3
Hitch Expo
$72.79
Reese 3-Pack Keyed Alike Universal Trailer Coupler Lock Surround Lock Fits 1-7/8 Inch 2 Inch 2-5/16 Inch Ball Couplers 72783KA X3
Hitch Expo
$87.79
Master Lock - Universal Size Fits 1-7/8", 2", And 2-5/16" Couplers - Trailer Locks 389DAT, 3 Pack
Amazon.com
16K+
Free shipping
$87.79
Master Lock - Universal Size Fits 1-7/8", 2", And 2-5/16" Couplers - Trailer Locks 389DAT, 3 Pack
Amazon.com
16K+
$123.94
Master Lock - Universal Size Fits 1-7/8", 2", And 2-5/16" Couplers - Trailer Locks 389DAT, 4 Pack
Amazon.com
15K+
Free shipping
$123.94
Master Lock - Universal Size Fits 1-7/8", 2", And 2-5/16" Couplers - Trailer Locks 389DAT, 4 Pack
Amazon.com
15K+
$194.11
Reese 8-Pack Keyed Alike Universal Trailer Coupler Lock Surround Lock Fits 1-7/8 Inch 2 Inch 2-5/16 Inch Ball Couplers 72783KA X8
Hitch Expo
$194.11
Reese 8-Pack Keyed Alike Universal Trailer Coupler Lock Surround Lock Fits 1-7/8 Inch 2 Inch 2-5/16 Inch Ball Couplers 72783KA X8
Hitch Expo
$17.41
Master Lock 1471DAT Trailer Coupler Latch Lock, 3-4/10" Long Shackle X 9/32" Diameter Pin
Amazon.com
1K+
$17.41
Master Lock 1471DAT Trailer Coupler Latch Lock, 3-4/10" Long Shackle X 9/32" Diameter Pin
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$39.81
Master Lock Black Universal Size Trailer Hitch Lock, Trailer Coupler Lock For Securing Rvs, Horse Trailers, Tool Trailers And More, 379ATPY
Amazon.com
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Free shipping
$39.81
Master Lock Black Universal Size Trailer Hitch Lock, Trailer Coupler Lock For Securing Rvs, Horse Trailers, Tool Trailers And More, 379ATPY
Amazon.com
4K+
$59.49
$63.69
Master Lock 378DAT Trailer Coupler Lock, 2-5/16-Inch
Amazon.com
887
Free shipping
$59.49
$63.69
Master Lock 378DAT Trailer Coupler Lock, 2-5/16-Inch
Amazon.com
887
$77.84
BOLT Trailer Coupler Lock - 1-7/8", 2", And 2-5/16" Couplers - For Late Model GM Key BL7032490
etrailer.com
6
$77.84
BOLT Trailer Coupler Lock - 1-7/8", 2", And 2-5/16" Couplers - For Late Model GM Key BL7032490
etrailer.com
6
$89.99
2026 Upgraded Trailer Lock Fits 2-5/16 Inch Coupler, Heavy Duty Trailer Hitch Locks, Anti-Theft Trailer Coupler Lock For RV/Trailer/Cargo/Boat/Camper/
Amazon.com
Free shipping
$89.99
2026 Upgraded Trailer Lock Fits 2-5/16 Inch Coupler, Heavy Duty Trailer Hitch Locks, Anti-Theft Trailer Coupler Lock For RV/Trailer/Cargo/Boat/Camper/
Amazon.com
Free shipping
$9.99
METOWARE Trailer Coupler Lock Universal Adjustable Heavy-Duty Steel Trailer Hitch Lock, Anti Theft Trailer Ball Lock Towing Lock For Towing Trailer
Amazon.com
245
$9.99
METOWARE Trailer Coupler Lock Universal Adjustable Heavy-Duty Steel Trailer Hitch Lock, Anti Theft Trailer Ball Lock Towing Lock For Towing Trailer
Amazon.com
245
$197.37
Trimax Deluxe Universal Coupler Lock - 2-Pack, Keyed Alike, Fits 1-7/8in. To 2-5/16in. Couplers, 4.5in. Shackle Width, Model UMAX-100-2-KA
Northern Tool
Free shipping
$197.37
Trimax Deluxe Universal Coupler Lock - 2-Pack, Keyed Alike, Fits 1-7/8in. To 2-5/16in. Couplers, 4.5in. Shackle Width, Model UMAX-100-2-KA
Northern Tool
Free shipping
$35.99
METOWARE Trailer Tongue Coupler Lock 1/4" Dia, 3-1/2" Span, Trailer Hitch Lock For Latch-Type Coupler, Black Trailer Pin Lock For Towing Trailer RV
Amazon.com
813
Free shipping
$35.99
METOWARE Trailer Tongue Coupler Lock 1/4" Dia, 3-1/2" Span, Trailer Hitch Lock For Latch-Type Coupler, Black Trailer Pin Lock For Towing Trailer RV
Amazon.com
813
$56.99
$63.99
Harsire Upgraded Trailer Lock Fits 2 5/16 Inch Couplers, Heavy Duty Trailer Hitch Locks, Upgraded Anti-Theft Structure Coupler Lock, Security Trailer
Amazon.com
141
Free shipping
10% off
$56.99
$63.99
Harsire Upgraded Trailer Lock Fits 2 5/16 Inch Couplers, Heavy Duty Trailer Hitch Locks, Upgraded Anti-Theft Structure Coupler Lock, Security Trailer
Amazon.com
141
$493.41
Trimax Deluxe Universal Coupler Lock Set - 5-Pack, Keyed Alike, Fits 1-7/8In., 2in. Or 2-5/16in. Couplers, 4.5in. Shackle Width, Model UMAX-100-5-KA
Northern Tool
Free shipping
$493.41
Trimax Deluxe Universal Coupler Lock Set - 5-Pack, Keyed Alike, Fits 1-7/8In., 2in. Or 2-5/16in. Couplers, 4.5in. Shackle Width, Model UMAX-100-5-KA
Northern Tool
Free shipping
$19.99
TOPICK Trailer Coupler Lock, Universal Coupler Ball Lock, Trailer Security Hitch Locks, Fits 1-7/8", 2", And 2-5/16" Couplers, Matte Black With PVC
Amazon.com
2
$19.99
TOPICK Trailer Coupler Lock, Universal Coupler Ball Lock, Trailer Security Hitch Locks, Fits 1-7/8", 2", And 2-5/16" Couplers, Matte Black With PVC
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TOPICK Keyed Alike Trailer Coupler Lock Set, Trailer Lock Kit Include Universal Trailer Hitch Lock & Coupler Latch Lock, Heavy-Duty Anti-Theft
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TOPICK Keyed Alike Trailer Coupler Lock Set, Trailer Lock Kit Include Universal Trailer Hitch Lock & Coupler Latch Lock, Heavy-Duty Anti-Theft
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