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
- Mastercool®Compact UV Flashlight Kit (53587)Universal Compact UV Flashlight Kit by Mastercool®. Packaged in clam shell. Keep your pride and joy running in tip-top shape with this top-grade automotive product. With it, you can easily and reliably check your vehicle for leaks to...Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$65.66
- Mastercool®Nitrogen Leak Test Pressure Regulator (53001)Universal Nitrogen Leak Test Pressure Regulator by Mastercool®. CGA580 (USA) Outlet Connection: 1/4 FL-M outlet connection. Mastercool's new nitrogen regulator is specifically designed to meet the specifications of HVAC/R and automotive...1/4" SAE flare outlet port, with control valve, to keep pressure on the regulator at all timesT-Handle for ease of pressure adjustment$137.42
- Mastercool®R-1234yf Mini ID Refrigerant Identifier (691234YF-MINI)Universal R-1234yf Mini ID Refrigerant Identifier by Mastercool®. The new low cost MINI ID REFRIGERANT IDENTIFIER helps you verify the presence and quality of R1234yf refrigerant in vehicle air conditioning systems, so you can help...Keeps equipment safe – the extraction of contaminated vehicle refrigerant can damage expensive R1234yf service and recovery equipmentPrevents contamination – avoids contaminating your refrigerant supply with illegal blends, propane, or butane from customer vehicles$996.73
- Mastercool®R-134a Refrigerant Identifier (69134-A)Universal R-134a Refrigerant Identifier by Mastercool®. The Refrigerant Identifier helps confirm the presence and quality of R134a refrigerant in vehicle air conditioning systems. This process will help avoid potential damage from...Keeps Equipment SafePrevents Contamination$1,064.91
- Mastercool®Raptor Complete Electronic and UV Leak Detection Kit (56300)Universal Raptor Complete Electronic and UV Leak Detection Kit (56300) by Mastercool®. This kit offers the “RAPTOR” along with UV Dye Injection System. cartridge type dye injector is fast and easy to use. Just twist the handle to...Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$423.73
- Mastercool®Raptor Complete Electronic and UV Leak Detection Kit with UV Dye Injection System (56400)Universal Raptor Complete Electronic and UV Leak Detection Kit with UV Dye Injection System (56400) by Mastercool®. This kit offers the “RAPTOR” along with UV Dye Injection System. refillable dye injector is fast and easy to use....Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$547.63
- Mastercool®Replacement Combustion Leak Tester Fluid (43709)Universal Replacement Combustion Leak Tester Fluid by Mastercool®. Bottle. Quickly check leaks between combustion chamber and cooling system. Keep your pride and joy running in tip-top shape with this top-grade automotive product. With...Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$19.28
- Mastercool®Replacement UV LED Bulb for 55200 Electronic Leak Detector (55100-LED)Universal Replacement UV LED Bulb for 55200 Electronic Leak Detector by Mastercool®. Keep your pride and joy running in tip-top shape with this top-grade automotive product. With it, you can easily and reliably check your vehicle for...Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$34.30
- Mastercool®Thermal Imaging Camera (52300)Universal Thermal Imaging Camera by Mastercool®. Take temperature measuring to another level… Mastercool's thermal imaging camera can measure from -20 to 350°C (-4 to 662°F) and display thermal images and temperature. Thermal images...Fully AutomaticFocus Free$460.61
- Mastercool®ZEROL HD46 32 oz. R-1234yf Mobile Air Conditioning Compressor Lubricant (92709-YF-32)Universal ZEROL HD46 32 oz. R-1234yf Mobile Air Conditioning Compressor Lubricant by Mastercool®. Bottle. ZEROL HD46 is a fully formulated ISO VG46 grade polyalkylene glycol lubricant designed specifically for application with HFO...Optimized miscibility in HFO refrigerant R1234yfSuperior lubricity compared to alternative lubricant types, including standard 'single end-capped' PAG products, and di-capped PAGs with lower di-capped material content$89.30
- Merchant Automotive®Fuel Rail Pressure Sensor Wrench (10522)Fuel Rail Pressure Sensor Wrench by Merchant Automotive®. Removing and replacing the Duramax fuel rail pressure sensor switch is difficult when using standard wrenches and sockets. The sensor is mounted on the right fuel rail under the...Unique design saves timeReduce the components that need to be removed to performe service of sensor$133.75
- Midtronics®10 Pieces Printer Paper Rolls (A401)Universal 10 Pieces Printer Paper Rolls by Midtronics®. 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 to help to get your job done rightManufactured utilizing the highest quality materials$30.23
- Midtronics®10' Replacement Cable for MDX-600 Series Tester (A208)Universal 10' Replacement Cable for MDX-600 Series Tester (A208) by Midtronics®. 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$83.44
- Midtronics®12 V Battery Service Diagnostic System with Convergence Module and Printer (DSS-5000PCVG)Universal 12 V Battery Service Diagnostic System with Convergence Module and Printer (DSS-5000PCVG) by Midtronics®. The DSS-5000 Battery Service Diagnostic System features Conductance Profiling™, a patented technology designed to...Conductance Profiling™ offers increased decisiveness (less Charge & Retest) and battery Reserve Capacity condition checkSupports future vehicle/battery technologies via automatic software updates delivered wirelessly with BMIS Program Maintenance$2,499.28
- Midtronics®12 V Battery Service Diagnostic System with Printer (DSS-5000P)Universal 12 V Battery Service Diagnostic System with Printer (DSS-5000P) by Midtronics®. The DSS-5000 Battery Service Diagnostic System features Conductance Profiling™, a patented technology designed to provide more, and deeper,...Conductance Profiling™ offers increased decisiveness (less Charge & Retest) and battery Reserve Capacity condition checkSupports future vehicle/battery technologies via automatic software updates delivered wirelessly with BMIS Program Maintenance$1,872.84
- Midtronics®12 V Handheld Electrical System and Battery Tester with Integrated Printer (CPX-900P)Universal 12 V Handheld Electrical System and Battery Tester with Integrated Printer (CPX-900P) by Midtronics®. CPX-900 Battery & Electrical System Analyzer offers advanced diagnostics via Conductance Profiling™, a patented Midtronics...Quickly and accurately diagnose a battery's cranking and reserve capacity healthReduced charge and retest results$1,317.97
- Midtronics®12 V Handheld Electrical System and Battery Tester with Integrated Printer and 9.8' Cable (CPX-900PL)Universal 12 V Handheld Electrical System and Battery Tester with Integrated Printer and 9.8' Cable (CPX-900PL) by Midtronics®. CPX-900 Battery & Electrical System Analyzer offers advanced diagnostics via Conductance Profiling™, a...Quickly and accurately diagnose a battery's cranking and reserve capacity healthReduced charge and retest results$1,337.03
- Midtronics®12 V Power Supply for DSS-5000 Battery Diagnostic Service System (A422)Universal 12 V Power Supply for DSS-5000 Battery Diagnostic Service System by Midtronics®. 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$35.57
- Midtronics®12 V/24 V Heavy Duty Battery and Electrical System Analyzer with Integrated Printer and Charging Dock (DSS5000PHDKT)Universal 12 V/24 V Heavy Duty Battery and Electrical System Analyzer with Integrated Printer and Charging Dock by Midtronics®. DSS-5000 HD Heavy-Duty Battery Diagnostic Service System is designed specifically for heavy-duty commercial...Conductance Profiling™ technology loads the batteries to identify reserve capacity issues that may start the vehicle, but could fail to support vehicle accessories12- and 24-volt battery pack, starter, and alternator diagnostics$3,161.62
- Midtronics®12' Replacement Cable and Clamp Set for PSC Series (A114)Universal 12' Replacement Cable and Clamp Set for PSC Series by Midtronics®. 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$58.68
- Midtronics®3' Replacement Cable for DSS-5000 Battery Diagnostic Service System (A421)Universal 3' Replacement Cable for DSS-5000 Battery Diagnostic Service System (A421) by Midtronics®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your...Designed for your maintenance needsMade from high-grade material for a long lifespan$90.10
- Midtronics®4' Replacement Cable for EXP-1000 and EXP-1000HD Battery Testers (A084)Universal 4' Replacement Cable for EXP-1000 and EXP-1000HD Battery Testers (A084) by Midtronics®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your...Manufactured for your battery maintenance tasksBuilt to meet strict quality standards and safety requirements$75.07
- Midtronics®4' Replacement Cable for MDX-600 Series Tester (A207)Universal 4' Replacement Cable for MDX-600 Series Tester (A207) by Midtronics®. 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$75.07
- Midtronics®6 V/12 V Battery Diagnostic Service System (DSS-5000PKIT)Universal 6 V/12 V Battery Diagnostic Service System by Midtronics®. The DSS-5000 Battery Service Diagnostic System features Conductance Profiling™, a patented technology designed to provide more, and deeper, information about battery...Pre-programmed service apps that promote quick error-free testingVIN capture through integrated camera$3,368.57
- Midtronics®6 V/12 V Battery Diagnostic Station (GRX-3000)Universal 6 V/12 V Battery Diagnostic Station (GRX-3000) by Midtronics®. Fast, accurate and reliable, the GRX can determine, often in less than five minutes, the difference between a recoverable battery and one that is not. Diagnostic...Easy to use with little or no trainingIntuitive icon-based menus and step-by-step process reduce errors$1,780.44
- Midtronics®6 V/12 V Electrical System and Battery Tester with Integrated Printer (EXP-800)Universal 6 V/12 V Electrical System and Battery Tester with Integrated Printer by Midtronics®. Building on advanced EXP technology with additional program management features and an integrated printer, the Midtronics EXP-800 sets the...Dynamic Conductance Battery Testing TechnologyCombines direct temperature measurement with deep scan technology to improve accuracy and decisiveness$1,271.83
- Midtronics®6 V/12 V Heavy Duty Expandable Electrical System and Battery Tester (EXP-1000 HD)Universal 6 V/12 V Heavy Duty Expandable Electrical System and Battery Tester (EXP-1000 HD) by Midtronics®. The EXP–1000 HD was designed specifically for the Heavy-Duty andFleet markets. With the latest advances in battery testing...Specially Designed for the HD/Commercial Fleet MarketNew Dynamic Conductance Battery Testing Technology$1,550.87
- Midtronics®6 V/12 V Heavy Duty Expandable Electrical System and Battery Tester with Amp Clamp and IP Printer (EXP1000HDAKT)Universal 6 V/12 V Heavy Duty Expandable Electrical System and Battery Tester with Amp Clamp and IP Printer (EXP1000HDAKT) by Midtronics®. The EXP–1000 HD was designed specifically for the Heavy-Duty andFleet markets. With the latest...Specially Designed for the HD/Commercial Fleet MarketNew Dynamic Conductance Battery Testing Technology$1,898.43
- Midtronics®6 V/12 V Heavy Duty Expandable Electrical System and Battery Tester with IP Printer (EXP1000HDKIT)Universal 6 V/12 V Heavy Duty Expandable Electrical System and Battery Tester with IP Printer (EXP1000HDKIT) by Midtronics®. The EXP–1000 HD was designed specifically for the Heavy-Duty andFleet markets. With the latest advances in...Specially Designed for the HD/Commercial Fleet MarketNew Dynamic Conductance Battery Testing Technology$1,708.59
- Midtronics®6 V/12 V/24 V Battery and Electrical System Analyzer with 4' Battery Test Cables (CPX-900)Universal 6 V/12 V/24 V Battery and Electrical System Analyzer with 4' Battery Test Cables by Midtronics®. CPX-900 Battery & Electrical System Analyzer offers advanced diagnostics in a handheld one-piece diagnostic tool. CPX-900...Quickly and accurately diagnose a battery’s cranking and reserve capacity healthReduced charge and retest results$1,252.73
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.