Semi Truck Diagnostic & Testing Tools
- 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
- S&G Tool Aid®Air Pressure Gauge (94652)Universal Air Pressure Gauge by S&G Tool Aid®. 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$1.92
- S&G Tool Aid®Alligator Clip (27007)Universal Alligator Clip by S&G Tool Aid®. 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...Designed for your maintenance needsMade from high-grade material for a long lifespan$1.35
- S&G Tool Aid®Analog Lens for Pressure Tester Gauge (34563)Universal Analog Lens for Pressure Tester Gauge by S&G Tool Aid®. 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$14.87
- S&G Tool Aid®Black Battery Clips (28008)Universal Black Battery Clips by S&G Tool Aid®. 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...Designed for your maintenance needsMade from high-grade material for a long lifespan$3.88
- S&G Tool Aid®Bosch 2 Noid Light (36342)Universal Bosch 2 Noid Light by S&G Tool Aid®. 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...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$8.10
- S&G Tool Aid®Diesel Gauge (34662)Universal Diesel Gauge by S&G Tool Aid®. 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$87.10
- S&G Tool Aid®Diesel Tester Adapter Set (34820)Diesel Tester Adapter Set (34820) by S&G Tool Aid®. 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$116.96
- S&G Tool Aid®Ignition Module Tester (23600)Universal Ignition Module Tester by S&G Tool Aid®. 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$87.13
- S&G Tool Aid®Ignition Module Tester Kit (23650)Universal Ignition Module Tester Kit by S&G Tool Aid®. 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$97.80
- S&G Tool Aid®In-Line Spring Lock Fitting Adapter (57230)In-Line Spring Lock Fitting Adapter (57230) by S&G Tool Aid®. 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$61.22
- S&G Tool Aid®M12 x 1.25 Banjo Bolt Adapter and Seal (37371)Universal M12 x 1.25 Banjo Bolt Adapter and Seal by S&G Tool Aid®. This product is manufactured to help you maintain and service your oil system. It will make it easier to keep the oil pressure under control for smooth and safe...Manufactured for your oil system maintenanceBuilt to enhance your productivity$15.97
- S&G Tool Aid®M12 x 1.50 Male x M10 x 1.00 Female x 1-1/4" Replacement Adapter (33822)Universal M12 x 1.50 Male x M10 x 1.00 Female x 1-1/4" Replacement Adapter by S&G Tool Aid®. This product is designed and manufactured to help you keep the fuel system of your vehicle in mint condition. It will make fuel system...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$4.08
- S&G Tool Aid®Multec 2 Noid Light (36343)Multec 2 Noid Light by S&G Tool Aid®. 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$8.68
- S&G Tool Aid®Replacement Battery Clip (27024)Universal Replacement Battery Clip by S&G Tool Aid®. 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...Designed for your maintenance needsMade from high-grade material for a long lifespan$2.37
- S&G Tool Aid®Replacement High Voltage Test Light Bulb (22409)Universal Replacement High Voltage Test Light Bulb by S&G Tool Aid®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance...Designed for your maintenance needsMade from high-grade material for a long lifespan$3.67
- S&G Tool Aid®Replacement Lens for 33907 Fuel Injection Testers (33914)Universal Replacement Lens for 33907 Fuel Injection Testers by S&G Tool Aid®. 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...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$7.11
- Schumacher®6 V/12 V/24 V International Wireless Battery and Electrical System Tester (SBT1)Universal 6 V/12 V/24 V International Wireless Battery and Electrical System Tester by Schumacher®. Battery Tester with Smartphone or Tablet Connectivity. For the most technically-minded shop owner or user, the SBT1 wireless battery and...Performs battery test, system test, start-stop test, and EV battery testAllows users to email or text test results and stores 2,000 test records$233.75
- SeaSense®12 V Battery Meter (50031042)Universal 12 V Battery Meter by SeaSense®. Helps eliminate dead batteries that can leave you stranded! Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your...Accurately measures the charge in any 12 volt batteryBright LED readout can be easily read in sunlight$12.39
- Solar®12 V Digital Battery and Electrical System Tester with Integrated Printer and COB LED Work Light MAX 200 Lumens (BA227L)Universal 12 V Digital Battery and Electrical System Tester with Integrated Printer and COB LED Work Light MAX 200 Lumens (BA227L) by Solar®. If you are looking for an accurate battery tester that’s easy to use and provides a hard...12-volt Battery Testing6.5 to 15 V operating range$260.56
- Steelman®Digital Diesel Compression Recorder Set (97169)Universal Digital Diesel Compression Recorder Set by Steelman®. 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$94.22
- Symtech®AIM Screen (01011201)Universal AIM Screen by Symtech®. Adjust your vehicle’s headlights in no time flat and without breaking a sweat using this top-grade product. Built to meet your adjustment needs, it combines ease of handling with superior rigidity so...Designed to help ensure the proper alignment of headlightsHandy solution to make the process faster and easier$88.36
- Thexton®Coil Adapter for 2801D Master Coil Adapter Set (387)Coil Adapter for 2801D Master Coil Adapter Set by Thexton®. 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$11.75
- Thexton®Master Coil Adapter Set (2801D)Master Coil Adapter Set by Thexton®. 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 quality...Designed to help to get your job done rightManufactured utilizing the highest quality materials$53.73
- UView®0.06 oz. A/C Dye, 0.06 oz. x 6 Capsules (499387)Universal 0.06 oz. A/C Dye, 0.06 oz. x 6 Capsules (499387) by UView®. 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 ensure...Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$24.69
- UView®1 oz. Replacement A/C Treatment Cartridge with UV Dye (480200)Universal 1 oz. Replacement A/C Treatment Cartridge with UV Dye by UView®. Replacement A/C treatment cartridges with uv dye protects and extends compressor life, enhances lubricity of system lubricants, reduces friction and quiets noisy...Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$6.06
- UView®A/C Stop Leak Plus with UV Dye (480000)Universal A/C Stop Leak Plus with UV Dye by UView®. Seals multiple A/C leaks with just one application. Includes UV dye to check system integrity, If there’s a leak, the leak source will fluoresce when exposed to UV light. Works on...Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$34.68
- UView®Squeeze Bulb (98037321)Universal Squeeze Bulb by UView®. 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 ensure its dependable and worry-free...Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$11.07
- Vacutec®Power Converter (WVA-079)Universal Power Converter by Vacutec®. For WV711-100-240V to 12V DC/25A. 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...Connects to smoke tester and grounded wall power outletNo need to hook up to vehicle's battery$302.09
- Wohler®Camera Guide for VIS 340 1.5" Camera Heads (3884)Camera Guide for VIS 340 1.5" Camera Heads (3884) by Wohler®. 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...High quality at an affordable priceExpertly made from premium materials$369.00
- Wohler®Car Charger for VIS 2XX/3XX Inspection Camera Systems (3169)Car Charger for VIS 2XX/3XX Inspection Camera Systems by Wohler®. 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...High quality at an affordable priceExpertly made from premium materials$128.70
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.