Semi Truck Electrical System Testers

Power Probe® - PP 3™ Circuit Tester
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# 2044038712
Universal PP 3™ Circuit Tester by Power Probe®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver...
Designed to help to get your job done rightManufactured utilizing the highest quality materials
$189.51 - $267.71
Availability Varies - Depends on Product Options
Power Probe® - Probe Tip
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# 3798670820
Universal Probe Tip by Power Probe®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs, delivering features and...
Designed for your maintenance needsMade from high-grade material for a long lifespan
$15.26 - $19.51
Availability Varies - Depends on Product Options
Power Probe® - Switch Latch
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# 3406303271
Universal Switch Latch by Power Probe®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs, delivering features and...
Designed for your maintenance needsMade from high-grade material for a long lifespan
$5.21 - $7.61
Availability Varies - Depends on Product Options
Solar® - Battery Load Tester
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# 3624896586
Universal Battery Load Tester by Solar®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...
For 6 and 12 Volt batteriesTests batteries to 1000 Cold Cranking Amps
$27.96 - $48.54
Availability Varies - Depends on Product Options
Solar® - Carbon Pile Battery Load Tester
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# 3624897585
Universal Carbon Pile Battery Load Tester by Solar®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...
Enables Starter and Alternator assessmentLarge, easy-to-read gauges
$290.17 - $301.91
In Stock - Ships within 24 hrs
Solar® - Digital Electrical System and Battery Tester
2
# 3624898571
Universal Digital Electrical System and Battery Tester by Solar®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your...
Designed and made by highly qualified specialistsProven to enable fast, easy and reliable battery analysis
$63.98 - $441.18
Availability Varies - Depends on Product Options
Standard® - Handypack™ Battery Test Clips
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# 2020911440
Universal Handypack™ Battery Test Clips by Standard®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs,...
Manufactured for your battery maintenance tasksBuilt to meet strict quality standards and safety requirements
$2.34 - $3.86
In Stock - Ships within 24 hrs
Associated Equipment® - Replacement Electronic Timer
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# 4802564970
Universal Replacement Electronic Timer by Associated Equipment®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs,...
Designed for your maintenance needsMade from high-grade material for a long lifespan
$80.28 - $82.88
Availability Varies - Depends on Product Options
Lang Tools® - 10' 3 Leads Magnetic Retractable Test Leads with Insulated Alligator Clip (1135)
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# mpn4643812258
Universal 10' 3 Leads Magnetic Retractable Test Leads with Insulated Alligator Clip (1135) by Lang Tools®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for...
Retractable test leads pull out and stay at desired length and rewind into its own protective case when not in useDesigned for your maintenance needs
$25.87
In Stock - Ships in 24 to 48 hrs
Lang Tools® - 10' 3 Leads Retractable Test Leads with Insulated Alligator Clip (1129)
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# mpn2247184
Universal 10' 3 Leads Retractable Test Leads with Insulated Alligator Clip (1129) by Lang Tools®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your...
Retractable test leads pull out and stay at desired length and rewind into its own protective case when not in useDesigned for your maintenance needs
$15.21
In Stock - Ships in 24 to 48 hrs
Lang Tools® - 30' 2 Leads Magnetic Retractable Test Leads with Insulated Alligator Clip (1138)
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# mpn4643812259
Universal 30' 2 Leads Magnetic Retractable Test Leads with Insulated Alligator Clip (1138) by Lang Tools®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for...
Retractable test leads pull out and stay at desired length and rewind into its own protective case when not in useDesigned for your maintenance needs
$34.54
In Stock - Ships in 24 to 48 hrs
Lang Tools® - 30' 2 Leads Retractable Test Leads with Insulated Alligator Clip (1137)
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# mpn2247187
Universal 30' 2 Leads Retractable Test Leads with Insulated Alligator Clip (1137) by Lang Tools®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your...
Retractable test leads pull out and stay at desired length and rewind into its own protective case when not in useDesigned for your maintenance needs
$28.21
In Stock - Ships in 24 to 48 hrs
Lang Tools® - 30' Retractable Test Leads with Insulated Alligator Clip (1130)
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# mpn4644457882
Universal 30' Retractable Test Leads with Insulated Alligator Clip (1130) by Lang Tools®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical...
Retractable test leads pull out and stay at desired length and rewind into its own protective case when not in useDesigned for your maintenance needs
$13.47
In Stock - Ships in 24 to 48 hrs
OTC® - 0 to 1000 A Mid and High Range Amp Probe (3174)
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# mpn4686460078
Universal 0 to 1000 A Mid and High Range Amp Probe by OTC®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs...
Test charging current and starting current draw most vehicle applicationsLow battery indicator
$416.85
In Stock - Ships in 24 to 48 hrs
OTC® - 10 Pieces Replacement Bulbs for 3630 Circuit Tester (3630-10)
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# mpn4643731195
Universal 10 Pieces Replacement Bulbs for 3630 Circuit Tester (3630-10) by OTC®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system...
Designed for your maintenance needsMade from high-grade material for a long lifespan
$13.37
In Stock - Ships within 24 hrs
OTC® - 3 Pieces Alligator Clips (3840-03)
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# mpn4712443093
Universal 3 Pieces Alligator Clips by OTC®. The exclusive vehicle-specific database in the 3840F contains information for most domestic vehicles as well as many imports. The Scope also recommends the appropriate test procedures for...
Designed for your maintenance needsMade from high-grade material for a long lifespan
$75.12
In Stock - Ships in 24 to 48 hrs
OTC® - 6 V/12 V 100 A Battery Load Tester (3180)
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# mpn1929372
Universal 6 V/12 V 100 A Battery Load Tester by OTC®. Tests batteries on or off the car in just 10 2nds. Convenient, portable size and easy-to-read scales. This product has been engineered and designed to help you with your battery and...
Heavy-duty copper-plated clampsLoad safety switch prevents arcing
$45.00
In Stock - Ships in 24 to 48 hrs
OTC® - 6 V/12 V 130 A Digital Battery Load Tester (3182)
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# mpn1451545789
Universal 6 V/12 V 130 A Digital Battery Load Tester by OTC®. Produce more accurate results with this 130 amp digital battery load tester. The compact, lightweight design is rugged enough for everyday testing of 6 and 12 volt batteries....
Large, easy to read displayUnique clamp design
$110.18
In Stock - Ships in 24 to 48 hrs
OTC® - 9.6 V Battery Pack (239180)
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# mpn1928245
Universal 9.6 V Battery Pack by OTC®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs, delivering features and...
Designed for your maintenance needsMade from high-grade material for a long lifespan
$93.55
In Stock - Ships in 24 to 48 hrs
OTC® - ACC Solarity High Capacity Power Supply/Battery for 3850 Scope Kit (3850-05)
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# mpn4686460148
Universal ACC Solarity High Capacity Power Supply/Battery for 3850 Scope Kit by OTC®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind....
Designed to help to get your job done rightManufactured utilizing the highest quality materials
$114.54
In Stock - Ships in 24 to 48 hrs
OTC® - Anti-zap Auto Surge Protector (3386)
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# mpn1451545849
Universal Anti-zap Auto Surge Protector by OTC®. Prevents damage to sensitive electronic systems. Protects key vehicle components from high-voltage spikes. Your electrical system maintenance will be easier with this high-quality...
Designed for your maintenance needsMade from high-grade material for a long lifespan
$147.86
In Stock - Ships within 24 hrs
OTC® - Battery Adapter (212638)
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# mpn4686459693
Universal Battery Adapter by OTC®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs, delivering features and...
Designed for your maintenance needsMade from high-grade material for a long lifespan
$34.47
In Stock - Ships in 24 to 48 hrs
OTC® - Bosch™ VET 100 Circuit Analysis Tool (3920)
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# mpn4686460155
Universal Bosch™ VET 100 Circuit Analysis Tool by OTC®. The Bosch VET 100 Circuit Analysis Tool is perfect for data stream analysis using your scan tool. With quick and easy setup, you can identify faulty sensors, wiring harnesses,...
Save time and quickly identify failed circuit component, wiring harness or ECMUse with any scan tool during data stream analysis
$201.41
In Stock - Ships in 24 to 48 hrs
OTC® - Diesel Glow Plug Tester (3673)
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# mpn4686459729
Universal Diesel Glow Plug Tester by OTC®. Glow Plug Tester provides fault detection through LED's for a quick analysis; Short Circuit, Over Current, Normal Operation, Open Circuit/Under Current.
Glow Plug Tester allows for testing without removing glow plug from enginePowers the glow plug to test the plug in it's operating state
$223.92
In Stock - Ships in 24 to 48 hrs
OTC® - IAC Idle Air Signal Test Light (3053S)
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# mpn4686459959
IAC Idle Air Signal Test Light (3053S) by OTC®. Node Lite - For checking the electronic control module signal that provides direction to the idle air control motor on General Motors vehicles with throttle body or port fuel injection...
Designed to help to get your job done rightManufactured utilizing the highest quality materials
$31.10
In Stock - Ships in 24 to 48 hrs
OTC® - Ignition Adapter Connector Kit (3579)
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# mpn4686459695
Universal Ignition Adapter Connector Kit by OTC®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver...
Designed to help to get your job done rightManufactured utilizing the highest quality materials
$77.18
In Stock - Ships in 24 to 48 hrs
OTC® - Parasitic Draw Test Switch (6945)
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# mpn4686459810
Universal Parasitic Draw Test Switch by OTC®. Test switch is used with an amp meter to isolate parasitic amperage draws on all GM vehicles or any vehicle with a side- or top-post battery. This tool attaches between the negative battery...
Designed to help to get your job done rightManufactured utilizing the highest quality materials
$103.04
In Stock - Ships in 24 to 48 hrs
OTC® - Parasitic Draw Tester (7645)
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# mpn4643285631
Universal Parasitic Draw Tester by OTC®. Finding electrical problems that drain the battery is getting harder all the time. But using No. 7645 with your digital amp meter takes the guesswork out of a complicated job. Attach the test...
Designed for your maintenance needsMade from high-grade material for a long lifespan
$77.82
In Stock - Ships in 24 to 48 hrs
OTC® - Standard Terminal Adapter Test Kit (3587)
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# mpn1451545968
Universal Standard Terminal Adapter Test Kit by OTC®. For the professional electronic diagnostic technician. Set includes an assortment of 28 flexible, color-coded connectors that adapt to Packard WeatherPack, Metri-Pack, and Micro-Pack...
Excellent accessory when testing with a scope or meter32-piece standard terminal adapter set for the popular Packard Weather Pack, Metri-Pack, and Micro-Pack style connectors. Multiple external-internal versions of adapter styles
$514.46
In Stock - Ships in 24 to 48 hrs
ATD® - 12 V 500 A Variable Carbon Pile Battery Load Tester (5489)
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# mpn1578182972
Universal 12 V 500 A Variable Carbon Pile Battery Load Tester by ATD®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance...
Tests 12V batteries, alternators and startersTests batteries to 1000 CCA
$102.42
In Stock - Ships within 24 hrs