Semi Truck Diagnostic & Testing Tools
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Code Readers & Scanners
Anti-Freeze & Coolant Testers
Electrical Testers
Timing Lights
Fuel System Testers
Ignition Testers
Brake Testers & Measuring Tools
Coating Thickness Gauges
Oil Pressure Test Tools
Engine Compression Testers
Diagnostic Leak Detection
Headlight Alignment Systems
Suspension Testers
Vehicle Scales
Refrigerant Identifiers
Window Tint Meters
Exhaust System Testers
Auto Inspection Cameras & Scopes
Featured Brands
- Lisle®Orange Banana Plug Adapter for 60660 Deluxe Relay Test Set (69210)Universal Orange Banana Plug Adapter for 60660 Deluxe Relay Test Set (69210) by Lisle®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical...Designed for your maintenance needsMade from high-grade material for a long lifespan$7.76
- Longacre®220V Charger (52-72554)Universal 220V Charger by Longacre®. This top-notch product is designed to help you get in the know of the vehicle’s weight. Made from superior materials, it will provide you with the utmost in quality, functionality, and enduring...Handy tool for professional techniciansEngineered to help you get the proper measurements$67.99
- Longacre®Individual Formed Scale Pad Levelers (52-72913)Universal Individual Formed Scale Pad Levelers by Longacre®. This top-notch product is designed to help you get in the know of the vehicle’s weight. Made from superior materials, it will provide you with the utmost in quality,...Handy tool for professional techniciansEngineered to help you get the proper measurements$609.75
- Longacre®Rolling Case (52-72295)Universal Rolling Case by Longacre®. This top-notch product is designed to help you get in the know of the vehicle’s weight. Made from superior materials, it will provide you with the utmost in quality, functionality, and enduring...Handy tool for professional techniciansEngineered to help you get the proper measurements$259.99
- Longacre®Scale Pad Platen Ramp Set (52-72926)Universal Scale Pad Platen Ramp Set by Longacre®. This top-notch product is designed to help you get in the know of the vehicle’s weight. Made from superior materials, it will provide you with the utmost in quality, functionality, and...Handy tool for professional techniciansEngineered to help you get the proper measurements$295.81
- Make Waves Instrument®Super Pro™ Inductive Timing Light works on All 12 Volt Negative Ground Systems (6045)Universal Super Pro™ Inductive Timing Light works on All 12 Volt Negative Ground Systems by Make Waves Instrument®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a...Mechanic's Quality Xenon Timing Light Work on All Styles of Ignition SystemsInductive Leads for Safety and Durability and Heavy Duty Clips$55.78
- Mastercool®12 V Dual EVAP/High Pressure Diagnostic Smoke Machine with Truck Adapter Kit (43070)Universal 12 V Dual EVAP/High Pressure Diagnostic Smoke Machine with Truck Adapter Kit (43070) by Mastercool®. This unit is for evap, turbo/intake and heavy duty truck testing providing a solution to difficult to diagnose automotive...Compact, heavy duty design for years of reliable serviceMultiple options for smoke injection include built-in internal compressor, shop air and inert gases$1,715.31
- Midtronics®1.5 V to 20 V Battery Tester (CAD5000)Universal 1.5 V to 20 V Battery Tester by Midtronics®. Battery management and testing are critical for maintaining power integrity for telecom networks, data centers, utility transmission and distribution systems. The demand placed on...Conductance based diagnostics proven effective for identifying & trending battery healthHighly efficient test process: 50% reduction in test time from other battery analyzers$3,439.75
- Midtronics®Replacement Charge Cable for GRX-3000 Battery Tester (A291)Universal Replacement Charge Cable for GRX-3000 Battery Tester (A291) by Midtronics®. High-quality, heavy-gauge replacement cable/clamp set for the Midtronics GRX-3000 Diagnostic Charger. This product is made of high-quality materials...Designed to help to get your job done rightManufactured utilizing the highest quality materials$211.11
- Milton®60 to 125 psi Vacuum Analyzer and Fuel Pump Tester (S-1290)Universal 60 to 125 psi Vacuum Analyzer and Fuel Pump Tester by Milton®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of...Designed to help to get your job done rightManufactured utilizing the highest quality materials$51.39
- Mityvac®7-piece Fuel System Test Adapter Kit (MVA502)7-piece Fuel System Test Adapter Kit (MVA502) by Mityvac®. Together, they fit most US, Asian, and European manufactured vehicles. Each can be ordered separately using the part number indicated below. This product is designed and...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$159.13
- Mityvac®Field Service Set for MV5530 Analog Compression Test Kit (823441)Universal Field Service Set for MV5530 Analog Compression Test Kit by Mityvac®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of...Made to high standards of qualitySubjected to extensive testing for enduring value$17.50
- NEXIQ®HDS Lite Link RS232 to USB Adapter (402087)Universal HDS Lite Link RS232 to USB Adapter by NEXIQ®. Designed with maximum accuracy and precision in mind, this tool is the ultimate solution that will help make automotive diagnostic scanning fast and easy. It’s crafted using the...Assists in the vehicle’s diagnostics to help maintain its well-beingBuilt to make the process fast, easy, and reliable$59.99
- OTC®0 to 100 psi Fuel Pressure Test Adapter Kit (ZTSE4657)0 to 100 psi Fuel Pressure Test Adapter Kit (ZTSE4657) 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...This kit can be used with any engine application that uses a Schroeder valve to access the fuel systemSpecial Schroeder valve adapter features check valve and quick disconnect fitting$84.44
- OTC®12" Compression Hose with 1/8 NPTF Male Ends for 5020 Diesel Compression Tester Kit (209762)Universal 12" Compression Hose with 1/8 NPTF Male Ends for 5020 Diesel Compression Tester Kit by OTC®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design...Made to high standards of qualityDesigned to provide the ultimate in practicality$67.62
- OTC®Analog Pressure Gauge Set (J-26417-A)Universal Analog Pressure Gauge Set 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 great...Designed to help to get your job done rightManufactured utilizing the highest quality materials$1,327.77
- OTC®Bendix MPC Software (3101-16)Universal Bendix MPC Software by OTC®. Designed with maximum accuracy and precision in mind, this tool is the ultimate solution that will help make automotive diagnostic scanning fast and easy. It’s crafted using the finest materials...Assists in the vehicle’s diagnostics to help maintain its well-beingBuilt to make the process fast, easy, and reliable$989.51
- OTC®Bosch™ SMT500 Low Pressure Leak Tester (SMT500)Universal Bosch™ SMT500 Low Pressure Leak Tester by OTC®. The SMT 500 Low Pressure Leak Tester can be used to find all kinds of leaks in automotive applications. Utilizing an on-board micro air compressor, the SMT 500 eliminates the...On-board micro air compressorVariable flow control$1,569.45
- OTC®Cartridge Gage Cluster (3101-71)Cartridge Gage Cluster by OTC®. Designed with maximum accuracy and precision in mind, this tool is the ultimate solution that will help make automotive diagnostic scanning fast and easy. It’s crafted using the finest materials and...Assists in the vehicle’s diagnostics to help maintain its well-beingBuilt to make the process fast, easy, and reliable$1,549.99
- OTC®Compression Adapter Fitting (206843)Universal Compression Adapter Fitting 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$19.75
- OTC®Cylinder Head Pressure Test Adapter (ZTSE4289A)Universal Cylinder Head Pressure Test Adapter 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$1,124.82
- OTC®Eaton MPC Software (3101-15)Universal Eaton MPC Software by OTC®. Designed with maximum accuracy and precision in mind, this tool is the ultimate solution that will help make automotive diagnostic scanning fast and easy. It’s crafted using the finest materials...Assists in the vehicle’s diagnostics to help maintain its well-beingBuilt to make the process fast, easy, and reliable$935.38
- OTC®Electrnic Spark Gap Testrer with 6589 Spark Tester (7230)Universal Electrnic Spark Gap Testrer with 6589 Spark Tester 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$15.33
- OTC®Exhaust Gas Recirculation Cooler Test Adapter (J-47401)Universal Exhaust Gas Recirculation Cooler Test Adapter 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$727.27
- OTC®Fuel Injection Adapter (J-48710)Universal Fuel Injection Adapter by OTC®. This product is designed and manufactured to help you keep the fuel system of your vehicle in mint condition. It will make fuel system maintenance easier and more convenient, saving your time...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$580.46
- OTC®Fuel Injector Coil Balance Tool (J-39021)Universal Fuel Injector Coil Balance Tool by OTC®. If you’re looking for a reliable solution to complete your project, this 1st-grade product is right up your alley. Designed utilizing the finest materials, it delivers unmatched...Designed to help to get your job done rightManufactured utilizing the highest quality materials$545.17
- OTC®Fuel Return Volume Tester Kit (J-45873)Fuel Return Volume Tester Kit by OTC®. This product is designed and manufactured to help you keep the fuel system of your vehicle in mint condition. It will make fuel system maintenance easier and more convenient, saving your time and...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$609.22
- OTC®Heavy Duty Vacuum and Pressure Tester Kit (ZTSE4409)Heavy Duty Vacuum and Pressure Tester Kit (ZTSE4409) by OTC®. This product is designed and manufactured to help you keep the fuel system of your vehicle in mint condition. It will make fuel system maintenance easier and more convenient,...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$1,015.74
- OTC®Heavy-Duty Cartridge (3101-17)Universal Heavy-Duty Cartridge by OTC®. Designed with maximum accuracy and precision in mind, this tool is the ultimate solution that will help make automotive diagnostic scanning fast and easy. It’s crafted using the finest materials...Assists in the vehicle’s diagnostics to help maintain its well-beingBuilt to make the process fast, easy, and reliable$1,063.92
- OTC®Heavy-Duty MPC Navistar Software (3101-65)Universal Heavy-Duty MPC Navistar Software by OTC®. Designed with maximum accuracy and precision in mind, this tool is the ultimate solution that will help make automotive diagnostic scanning fast and easy. It’s crafted using the...Assists in the vehicle’s diagnostics to help maintain its well-beingBuilt to make the process fast, easy, and reliable$1,084.23
With today’s high-tech computer and electronics packed vehicles, electronic testers and diagnostic equipment have become the main weapons in the vehicle service arsenal, so we’ve stocked our digital shelves with scan tools, multimeters, analyzers and much more. When you’re armed with these electronic tools, you’ll be able to defeat any CHECK ENGINE light, blown fuse, balky window, recalcitrant alternator, or any other electrical malfunction with ease.
Electronic testers range from simple jumper wires, also called test leads, to sophisticated engine scan tools. Test leads allow you to bypass a circuit and directly test a component by applying 12 volts from the battery. Test lights, also called circuit testers, are essential tools for determining whether voltage is present at particular points in circuits. There are circuit powered and self-powered test lights, also known as continuity testers.
Test lights can tell you whether voltage is present, but they can’t tell you how much. For specific values you need a voltmeter, which is routinely packaged with an ohmmeter and ammeter in an electronic tester called a multimeter. There are analog meters that have a needle and a scale, but Digital Multi-Meters (DMM), also known as Digital Volt Ohm Meters (DVOM) are necessary for computer controlled circuits. Voltmeters can display the amount of voltage, such as when testing a battery or charging system, and test voltage drop. Ohmmeters measure resistance in a circuit and ammeters measure current flow.
A scan tool provides access to your vehicle’s computer control system via a cable connected to the Data Link Connector (DLC). With a scan tool you can read the Diagnostic Trouble Codes (DTCs) that cause CHECK ENGINE, Air Bag, and ABS dash lights to illuminate. Tool capability varies, and some can also read, record, and playback sensor data, display I/M monitor status, read and display freeze frame data, download to a PC, and be updated via USB port. In addition to erasing DTCs, some scan tools can also be used to reset oil lights and other warning lights.
Along with the above mentioned essentials, we also have many more diagnostic time savers including noid lights to check fuel injectors, current probes to measure current without disturbing the circuit, battery testers, infrared thermometers for instantaneous temperature indication, inspection cameras for peaks into the smallest places, and much more. And if you have an older, pre-computer controlled vehicle we have the tools you need to make adjustments and keep your vehicle running right, like timing lights to check initial timing and timing advance, and dwell/tachs to set breaker points and idle speed.