Shop trailer plug tester

Sponsored
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$23.99
Kefly 7-Way Round Pin Trailer Truck Circuit Plug Tester Replace 7865L, Trailer Tractor Light Tester
Amazon.com
60
$23.99
Kefly 7-Way Round Pin Trailer Truck Circuit Plug Tester Replace 7865L, Trailer Tractor Light Tester
Amazon.com
$109.99
$129.95
MINI MUTT (4 Pin) 4-Pin Trailer Tester
Innovative Products of Americahttps://ipatools.com/shop/
15% off
$109.99
$129.95
MINI MUTT (4 Pin) 4-Pin Trailer Tester
Innovative Products of Americahttps://ipatools.com/shop/
$30.28
Towsmart Proclass 7-Blade Trailer Connector W/ Wire Tester - Trailer End TS86RR
etrailer.com
$30.28
Towsmart Proclass 7-Blade Trailer Connector W/ Wire Tester - Trailer End TS86RR
etrailer.com
$23.03
7-Way Towing Trailer Wiring Circuit Tester
Home Depot
Free shipping
$23.03
7-Way Towing Trailer Wiring Circuit Tester
Home Depot
$125.14
7-Way Trailer Plug Tester (1 Per Pack)
eBay
$125.14
7-Way Trailer Plug Tester (1 Per Pack)
eBay
$10.09
Towsmart 4-Way Flat Trailer Connector W/ Wire Tester - Trailer End - 24" TS84RR
etrailer.com
$10.09
Towsmart 4-Way Flat Trailer Connector W/ Wire Tester - Trailer End - 24" TS84RR
etrailer.com
$1,200.00
Tactical Trailer Tester Field Kit With Electric Brake Force Meter
Innovative Products of Americahttps://ipatools.com/shop/
$1,200.00
Tactical Trailer Tester Field Kit With Electric Brake Force Meter
Innovative Products of Americahttps://ipatools.com/shop/
$16.92
Brophy Circuit Tester For 4-Pole Flat Trailer Connector F4CT
etrailer.com
$16.92
Brophy Circuit Tester For 4-Pole Flat Trailer Connector F4CT
etrailer.com
$9.99
Bass Pro Shops Trailer Light Tester
Bass Pro Shops
11
$9.99
Bass Pro Shops Trailer Light Tester
Bass Pro Shops
$209.95
$244.95
Heavy Ranger MUTT (7-Way Round Pin) Mobile Universal Trailer Tester
Innovative Products of Americahttps://ipatools.com/shop/
14% off
$209.95
$244.95
Heavy Ranger MUTT (7-Way Round Pin) Mobile Universal Trailer Tester
Innovative Products of Americahttps://ipatools.com/shop/
$19.99
12V 7 Pin Trailer Tester Plug 7 Way Trailers Round Plug Testers Wiring
eBay
$19.99
12V 7 Pin Trailer Tester Plug 7 Way Trailers Round Plug Testers Wiring
eBay
$431.70
Tekonsha Trailer Tester
TowUniverse.com
$431.70
Tekonsha Trailer Tester
TowUniverse.com
$5.25
SBT Trailer 4-Way Circuit Tester - 10-398
A&D Discount Peformance
$5.25
SBT Trailer 4-Way Circuit Tester - 10-398
A&D Discount Peformance
$9.99
Bass Pro Shops Trailer Light Tester
Cabela's
11
$9.99
Bass Pro Shops Trailer Light Tester
Cabela's
$159.00
Portable Trailer Light & Electric Brake Tester, Wireless Remote Control Operation, With 12V 10Ah Battery And 7 Pin Trailer Plug, 7-Way Flat (Spade) 4/
Walmart
Free shipping
$159.00
Portable Trailer Light & Electric Brake Tester, Wireless Remote Control Operation, With 12V 10Ah Battery And 7 Pin Trailer Plug, 7-Way Flat (Spade) 4/
Walmart
$9.70
7 Pin Trailer Plug Tester, Way Wiring Tester For RV, Light , Tow Wire Brake Blade 12V Connector
Walmart
Free shipping
$9.70
7 Pin Trailer Plug Tester, Way Wiring Tester For RV, Light , Tow Wire Brake Blade 12V Connector
Walmart
$24.99
Ultra-Tow 7- And 4-Way Circuit Tester, Model DBP7+4
Northern Tool
37
$24.99
Ultra-Tow 7- And 4-Way Circuit Tester, Model DBP7+4
Northern Tool
$57.00
$95.00
7-Way Round Pin Trailer Truck Circuit Plug Tester Replace 7865L | LED Indicators, Durable Accurate Diagnostic Tool For Truck Drivers Mechanics 5 Pack
shop.tenlca-gs.com
40% off
$57.00
$95.00
7-Way Round Pin Trailer Truck Circuit Plug Tester Replace 7865L | LED Indicators, Durable Accurate Diagnostic Tool For Truck Drivers Mechanics 5 Pack
shop.tenlca-gs.com
$84.35
$165.51
Portable Trailer Light Tester Box, Wireless Remote Control Operation, With 12V 10Ah Battery And 7 Pin Trailer Plug, 7-Way Flat (Spade) 3/4/5-Flat Pin Type, Testing Most Trailer Taillights
shop.lightstudioai
49% off
$84.35
$165.51
Portable Trailer Light Tester Box, Wireless Remote Control Operation, With 12V 10Ah Battery And 7 Pin Trailer Plug, 7-Way Flat (Spade) 3/4/5-Flat Pin Type, Testing Most Trailer Taillights
shop.lightstudioai
$1,990.25
IPA Super Mutt Mobile Universal Trailer Light Tester, Standard, 0-20 Amps, Model 9008-SE
Northern Tool
$1,990.25
IPA Super Mutt Mobile Universal Trailer Light Tester, Standard, 0-20 Amps, Model 9008-SE
Northern Tool
$398.67
7-Way Spade Pin Style With Adapter Trailer Tester In Black
Home Depot
Free shipping
$398.67
7-Way Spade Pin Style With Adapter Trailer Tester In Black
Home Depot
$195.96
IPA Light Ranger MUTT RV And Utility-Type Trailer Light Tester, Model 9101
Northern Tool
Free shipping
$195.96
IPA Light Ranger MUTT RV And Utility-Type Trailer Light Tester, Model 9101
Northern Tool
$7.50
4-Way Flat Trailer Wiring Tester [Nickel-Plated Copper Terminals] [Male & Female] [Continuity Test] 4-Pin Trailer Light Wire Circuit Tester
Walmart
17
Free shipping
$7.50
4-Way Flat Trailer Wiring Tester [Nickel-Plated Copper Terminals] [Male & Female] [Continuity Test] 4-Pin Trailer Light Wire Circuit Tester
Walmart
$64.27
Tekonsha 7-Way Blade Tester And Trailer Emulator, W/LED Display
TowUniverse.com
1
$64.27
Tekonsha 7-Way Blade Tester And Trailer Emulator, W/LED Display
TowUniverse.com
$57.00
$95.00
7865L 5 Pack 7-Way Round Pin Tractor Plug Tester Trailer Circuit7 Pin Trailer Plug Testersingle Person Test Circuit Tester.
shop.tenlca-gs.com
40% off
$57.00
$95.00
7865L 5 Pack 7-Way Round Pin Tractor Plug Tester Trailer Circuit7 Pin Trailer Plug Testersingle Person Test Circuit Tester.
shop.tenlca-gs.com
$17.99
$39.99
7-Pin To 4-Pin Trailer Adapter With LED Tester - 6 LED Indicators And Secure Tab
OPT7 Lighting
55% off
$17.99
$39.99
7-Pin To 4-Pin Trailer Adapter With LED Tester - 6 LED Indicators And Secure Tab
OPT7 Lighting
$6.95
Trailer Wiring Circuit Tester 48655
Trailer Parts Superstore
$6.95
Trailer Wiring Circuit Tester 48655
Trailer Parts Superstore
$11.99
CURT 5-Way Flat Connector Tester, 57505
Advance Auto Parts
$11.99
CURT 5-Way Flat Connector Tester, 57505
Advance Auto Parts
$84.35
$165.51
Portable Trailer Light Tester Box With 12V 10Ah Battery, Wireless Remote Control Operation, Fit For 7-Way Round 3/4/5 Flat Pin Type, With 7-Pin Trailer Light Tester Plug
shop.lightstudioai
49% off
$84.35
$165.51
Portable Trailer Light Tester Box With 12V 10Ah Battery, Wireless Remote Control Operation, Fit For 7-Way Round 3/4/5 Flat Pin Type, With 7-Pin Trailer Light Tester Plug
shop.lightstudioai
$6.51
$12.68
12V 7 Pin Car Towing Light Tester Trailer Plug Socket Diagnostic Tools Caravan Towing Tow Bar Light
Aliexpress
48% off
$6.51
$12.68
12V 7 Pin Car Towing Light Tester Trailer Plug Socket Diagnostic Tools Caravan Towing Tow Bar Light
Aliexpress
$84.35
$165.51
Portable Trailer Light Tester Box, Wireless Remote Control Operation, With 12V 10Ah Battery And 7 Pin Trailer Plug, 7-Way Flat (Spade) 3/4/5-Flat Pin Type, Testing Most Trailer Taillights
shop.chooserevcats
49% off
$84.35
$165.51
Portable Trailer Light Tester Box, Wireless Remote Control Operation, With 12V 10Ah Battery And 7 Pin Trailer Plug, 7-Way Flat (Spade) 3/4/5-Flat Pin Type, Testing Most Trailer Taillights
shop.chooserevcats
$10.31
12V Trailer Tester 7 13 Pin Adapter Diagnostic Tools Wiring Check Light Test Plug Socket For Car
Aliexpress
$10.31
12V Trailer Tester 7 13 Pin Adapter Diagnostic Tools Wiring Check Light Test Plug Socket For Car
Aliexpress
$7.60
$14.88
12V Trailer Tester 7 13 Pin Adapter Diagnostic Tools Wiring Check Light Test Plug Socket Car Truck
Aliexpress
Free shipping
48% off
$7.60
$14.88
12V Trailer Tester 7 13 Pin Adapter Diagnostic Tools Wiring Check Light Test Plug Socket Car Truck
Aliexpress
$78.00
$130.00
Innovative Products Of America MINI MUTT® 4-Pin Trailer Tester (Patent-Pending) For Boat, Utility And Small Cargo Trailers - Compatible With Dewalt 20V Batteries
shop.tenlca-gs.com
40% off
$78.00
$130.00
Innovative Products Of America MINI MUTT® 4-Pin Trailer Tester (Patent-Pending) For Boat, Utility And Small Cargo Trailers - Compatible With Dewalt 20V Batteries
shop.tenlca-gs.com
$150.00
$200.00
Milwaukee M12 Trailer Light Tester | 7-Pin & 4-Pin Connector | Battery Powered Diagnostic Tool |RV Trailer
Etsy
6
Free shipping
25% off
$150.00
$200.00
Milwaukee M12 Trailer Light Tester | 7-Pin & 4-Pin Connector | Battery Powered Diagnostic Tool |RV Trailer
Etsy
$84.35
$165.51
Portable Trailer Light Tester Box With 12V 10Ah Battery, Wireless Remote Control Operation, Fit For 7-Way Round 3/4/5 Flat Pin Type, With 7-Pin Trailer Light Tester Plug
shop.chooserevcats
49% off
$84.35
$165.51
Portable Trailer Light Tester Box With 12V 10Ah Battery, Wireless Remote Control Operation, Fit For 7-Way Round 3/4/5 Flat Pin Type, With 7-Pin Trailer Light Tester Plug
shop.chooserevcats
Sponsored
Top 10 Best Trailer Plug Tester of 2025
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Shop trailer plug tester

Sponsored
About our ads
$431.70
Tekonsha Trailer Tester
TowUniverse.com
$431.70
Tekonsha Trailer Tester
TowUniverse.com
$5.25
SBT Trailer 4-Way Circuit Tester - 10-398
A&D Discount Peformance
$5.25
SBT Trailer 4-Way Circuit Tester - 10-398
A&D Discount Peformance
$9.99
Bass Pro Shops Trailer Light Tester
Cabela's
11
$9.99
Bass Pro Shops Trailer Light Tester
Cabela's
$159.00
Portable Trailer Light & Electric Brake Tester, Wireless Remote Control Operation, With 12V 10Ah Battery And 7 Pin Trailer Plug, 7-Way Flat (Spade) 4/
Walmart
Free shipping
$159.00
Portable Trailer Light & Electric Brake Tester, Wireless Remote Control Operation, With 12V 10Ah Battery And 7 Pin Trailer Plug, 7-Way Flat (Spade) 4/
Walmart
$9.70
7 Pin Trailer Plug Tester, Way Wiring Tester For RV, Light , Tow Wire Brake Blade 12V Connector
Walmart
Free shipping
$9.70
7 Pin Trailer Plug Tester, Way Wiring Tester For RV, Light , Tow Wire Brake Blade 12V Connector
Walmart
$24.99
Ultra-Tow 7- And 4-Way Circuit Tester, Model DBP7+4
Northern Tool
37
$24.99
Ultra-Tow 7- And 4-Way Circuit Tester, Model DBP7+4
Northern Tool
$57.00
$95.00
7-Way Round Pin Trailer Truck Circuit Plug Tester Replace 7865L | LED Indicators, Durable Accurate Diagnostic Tool For Truck Drivers Mechanics 5 Pack
shop.tenlca-gs.com
40% off
$57.00
$95.00
7-Way Round Pin Trailer Truck Circuit Plug Tester Replace 7865L | LED Indicators, Durable Accurate Diagnostic Tool For Truck Drivers Mechanics 5 Pack
shop.tenlca-gs.com
$84.35
$165.51
Portable Trailer Light Tester Box, Wireless Remote Control Operation, With 12V 10Ah Battery And 7 Pin Trailer Plug, 7-Way Flat (Spade) 3/4/5-Flat Pin Type, Testing Most Trailer Taillights
shop.lightstudioai
49% off
$84.35
$165.51
Portable Trailer Light Tester Box, Wireless Remote Control Operation, With 12V 10Ah Battery And 7 Pin Trailer Plug, 7-Way Flat (Spade) 3/4/5-Flat Pin Type, Testing Most Trailer Taillights
shop.lightstudioai
$1,990.25
IPA Super Mutt Mobile Universal Trailer Light Tester, Standard, 0-20 Amps, Model 9008-SE
Northern Tool
$1,990.25
IPA Super Mutt Mobile Universal Trailer Light Tester, Standard, 0-20 Amps, Model 9008-SE
Northern Tool
$398.67
7-Way Spade Pin Style With Adapter Trailer Tester In Black
Home Depot
Free shipping
$398.67
7-Way Spade Pin Style With Adapter Trailer Tester In Black
Home Depot
$195.96
IPA Light Ranger MUTT RV And Utility-Type Trailer Light Tester, Model 9101
Northern Tool
Free shipping
$195.96
IPA Light Ranger MUTT RV And Utility-Type Trailer Light Tester, Model 9101
Northern Tool
$7.50
4-Way Flat Trailer Wiring Tester [Nickel-Plated Copper Terminals] [Male & Female] [Continuity Test] 4-Pin Trailer Light Wire Circuit Tester
Walmart
17
Free shipping
$7.50
4-Way Flat Trailer Wiring Tester [Nickel-Plated Copper Terminals] [Male & Female] [Continuity Test] 4-Pin Trailer Light Wire Circuit Tester
Walmart
$64.27
Tekonsha 7-Way Blade Tester And Trailer Emulator, W/LED Display
TowUniverse.com
1
$64.27
Tekonsha 7-Way Blade Tester And Trailer Emulator, W/LED Display
TowUniverse.com
$57.00
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7865L 5 Pack 7-Way Round Pin Tractor Plug Tester Trailer Circuit7 Pin Trailer Plug Testersingle Person Test Circuit Tester.
shop.tenlca-gs.com
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7865L 5 Pack 7-Way Round Pin Tractor Plug Tester Trailer Circuit7 Pin Trailer Plug Testersingle Person Test Circuit Tester.
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7-Pin To 4-Pin Trailer Adapter With LED Tester - 6 LED Indicators And Secure Tab
OPT7 Lighting
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$6.95
Trailer Wiring Circuit Tester 48655
Trailer Parts Superstore
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Trailer Wiring Circuit Tester 48655
Trailer Parts Superstore
$11.99
CURT 5-Way Flat Connector Tester, 57505
Advance Auto Parts
$11.99
CURT 5-Way Flat Connector Tester, 57505
Advance Auto Parts
$84.35
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Portable Trailer Light Tester Box With 12V 10Ah Battery, Wireless Remote Control Operation, Fit For 7-Way Round 3/4/5 Flat Pin Type, With 7-Pin Trailer Light Tester Plug
shop.lightstudioai
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Shop trailer plug tester

Sponsored
About our ads
$23.99
Kefly 7-Way Round Pin Trailer Truck Circuit Plug Tester Replace 7865L, Trailer Tractor Light Tester
Amazon.com
60
$23.99
Kefly 7-Way Round Pin Trailer Truck Circuit Plug Tester Replace 7865L, Trailer Tractor Light Tester
Amazon.com
$109.99
$129.95
MINI MUTT (4 Pin) 4-Pin Trailer Tester
Innovative Products of Americahttps://ipatools.com/shop/
15% off
$109.99
$129.95
MINI MUTT (4 Pin) 4-Pin Trailer Tester
Innovative Products of Americahttps://ipatools.com/shop/
$30.28
Towsmart Proclass 7-Blade Trailer Connector W/ Wire Tester - Trailer End TS86RR
etrailer.com
$30.28
Towsmart Proclass 7-Blade Trailer Connector W/ Wire Tester - Trailer End TS86RR
etrailer.com
$23.03
7-Way Towing Trailer Wiring Circuit Tester
Home Depot
Free shipping
$23.03
7-Way Towing Trailer Wiring Circuit Tester
Home Depot
$125.14
7-Way Trailer Plug Tester (1 Per Pack)
eBay
$125.14
7-Way Trailer Plug Tester (1 Per Pack)
eBay
$10.09
Towsmart 4-Way Flat Trailer Connector W/ Wire Tester - Trailer End - 24" TS84RR
etrailer.com
$10.09
Towsmart 4-Way Flat Trailer Connector W/ Wire Tester - Trailer End - 24" TS84RR
etrailer.com
$1,200.00
Tactical Trailer Tester Field Kit With Electric Brake Force Meter
Innovative Products of Americahttps://ipatools.com/shop/
$1,200.00
Tactical Trailer Tester Field Kit With Electric Brake Force Meter
Innovative Products of Americahttps://ipatools.com/shop/
$16.92
Brophy Circuit Tester For 4-Pole Flat Trailer Connector F4CT
etrailer.com
$16.92
Brophy Circuit Tester For 4-Pole Flat Trailer Connector F4CT
etrailer.com
$9.99
Bass Pro Shops Trailer Light Tester
Bass Pro Shops
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$9.99
Bass Pro Shops Trailer Light Tester
Bass Pro Shops
$209.95
$244.95
Heavy Ranger MUTT (7-Way Round Pin) Mobile Universal Trailer Tester
Innovative Products of Americahttps://ipatools.com/shop/
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$209.95
$244.95
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eBay
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12V 7 Pin Trailer Tester Plug 7 Way Trailers Round Plug Testers Wiring
eBay
$431.70
Tekonsha Trailer Tester
TowUniverse.com
$431.70
Tekonsha Trailer Tester
TowUniverse.com
$5.25
SBT Trailer 4-Way Circuit Tester - 10-398
A&D Discount Peformance
$5.25
SBT Trailer 4-Way Circuit Tester - 10-398
A&D Discount Peformance
$9.99
Bass Pro Shops Trailer Light Tester
Cabela's
11
$9.99
Bass Pro Shops Trailer Light Tester
Cabela's
$159.00
Portable Trailer Light & Electric Brake Tester, Wireless Remote Control Operation, With 12V 10Ah Battery And 7 Pin Trailer Plug, 7-Way Flat (Spade) 4/
Walmart
Free shipping
$159.00
Portable Trailer Light & Electric Brake Tester, Wireless Remote Control Operation, With 12V 10Ah Battery And 7 Pin Trailer Plug, 7-Way Flat (Spade) 4/
Walmart
$9.70
7 Pin Trailer Plug Tester, Way Wiring Tester For RV, Light , Tow Wire Brake Blade 12V Connector
Walmart
Free shipping
$9.70
7 Pin Trailer Plug Tester, Way Wiring Tester For RV, Light , Tow Wire Brake Blade 12V Connector
Walmart
$24.99
Ultra-Tow 7- And 4-Way Circuit Tester, Model DBP7+4
Northern Tool
37
$24.99
Ultra-Tow 7- And 4-Way Circuit Tester, Model DBP7+4
Northern Tool
$57.00
$95.00
7-Way Round Pin Trailer Truck Circuit Plug Tester Replace 7865L | LED Indicators, Durable Accurate Diagnostic Tool For Truck Drivers Mechanics 5 Pack
shop.tenlca-gs.com
40% off
$57.00
$95.00
7-Way Round Pin Trailer Truck Circuit Plug Tester Replace 7865L | LED Indicators, Durable Accurate Diagnostic Tool For Truck Drivers Mechanics 5 Pack
shop.tenlca-gs.com