Semi Truck Diagnostic & Testing Tools
![Semi Truck Diagnostic & Testing Tools](https://ic.truckid.com/tools-garage/pages/diagnostic-testing-tools/diagnostic-testing-tools_big_0.jpg)
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®Fuel Injection Pressure Tester Bleed-Off Kit (37400)Universal Fuel Injection Pressure Tester Bleed-Off Kit 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...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$36.14
- S&G Tool Aid®Fuel Injector Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35350)Fuel Injector Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35350) 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$50.06
- S&G Tool Aid®Fuel Injector Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35100)Fuel Injector Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35100) 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$74.08
- S&G Tool Aid®Fuel Injector Diesel Compression Test Adapter for 34700 Diesel Compression Tester (34840)Fuel Injector Diesel Compression Test Adapter for 34700 Diesel Compression Tester (34840) 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$59.19
- S&G Tool Aid®Fuel Injector Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35200)Fuel Injector Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35200) 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$34.39
- S&G Tool Aid®Fuel Injector Diesel Compression Test Adapter for 34700 and 34900 Diesel Compression Tester (34760)Fuel Injector Diesel Compression Test Adapter for 34700 and 34900 Diesel Compression 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...For testing at fuel injector portDesigned to help to get your job done right$39.25
- S&G Tool Aid®Fuel Injector Petrol Compression Test Adapter for 34700 and 34900 Diesel Compression Tester (34704)Universal Fuel Injector Petrol Compression Test Adapter for 34700 and 34900 Diesel Compression 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$40.04
- S&G Tool Aid®In-Line Ignition Spark Checker (23900)Universal In-Line Ignition Spark Checker by S&G Tool Aid®. Use to quickly troubleshoot ignition system. Device is “handsfree.” Connects in-line between spark plug and spark plug wire. Shows a duplicate view of the ignition spark....Connects quicklyTechnician can visually check condition of ignition system at each cylinder$10.54
- S&G Tool Aid®In-Line Recessed Spark Checker And Noid Set for Recessed Plugs, Noid Lights And Iac Test Lights Kit (36350)In-Line Recessed Spark Checker And Noid Set for Recessed Plugs, Noid Lights And Iac Test Lights 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...Use to test spark plug circuits, electronic fuel injection signals and idle air control circuitsQuickly diagnose "no start" and engine misses conditions in the electrical fuel injection and spark plug circuits$64.98
- S&G Tool Aid®In-Line Spark Checker with 90° boot (23920)Universal In-Line Spark Checker with 90° boot by S&G Tool Aid®. Features a 90° boot and longer wire to easily install and remove the In-Line Spark Checker between the spark plug and the ignition wire. Great for working in confined...Connects quicklyTechnician can visually check condition of ignition system at each cylinder$12.39
- S&G Tool Aid®M10 x 1 mm Glow Plug Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35670)M10 x 1 mm Glow Plug Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35670) 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$20.58
- S&G Tool Aid®M10 x 1 mm Glow Plug Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35250)M10 x 1 mm Glow Plug Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35250) 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$51.87
- S&G Tool Aid®M10 x 1 mm Glow Plug Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35000)M10 x 1 mm Glow Plug Diesel Compression Test Adapter for 34700 Diesel Compression 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$18.51
- S&G Tool Aid®M10 x 1 mm Glow Plug Diesel Compression Test Adapter for 34900 Diesel Engine Compression Tester (34730)M10 x 1 mm Glow Plug Diesel Compression Test Adapter for 34900 Diesel Engine Compression Tester (34730) 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$15.62
- S&G Tool Aid®M10 x 1.25 mm Glow Plug Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35660)M10 x 1.25 mm Glow Plug Diesel Compression Test Adapter for 34700 Diesel Compression 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$26.33
- S&G Tool Aid®M12 and M16 Gasoline Compression Test Adapter (34020)M12 and M16 Gasoline Compression Test Adapter by S&G Tool Aid®. Dual threaded male end provides two adapters in one for compression at the spark plug ports. Provided with a long reach flexible hose to access recesses and around...Provided with a long reach flexible hose to access recesses & around obstructionsScrews onto the 14mm-1.25 male thread at the end of the hose adapter for Cat. Nos. 34000 and 34300$29.60
- S&G Tool Aid®M14 x 1.25 mm Glow Plug Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35650)M14 x 1.25 mm Glow Plug Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35650) 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$29.14
- S&G Tool Aid®M21 Fuel Injector Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35700)M21 Fuel Injector Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35700) 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$73.29
- S&G Tool Aid®M21 Fuel Injector Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35680)M21 Fuel Injector Diesel Compression Test Adapter for 34700 Diesel Compression 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$106.94
- S&G Tool Aid®M21 Fuel Injector Diesel Compression Test Adapter for 34700 Diesel Compression Tester (34800)M21 Fuel Injector Diesel Compression Test Adapter for 34700 Diesel Compression 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$71.02
- S&G Tool Aid®M24 x 2 mm Fuel Injector Diesel Compression Test Adapter for 34700 and 34900 Diesel Compression Tester (34740)M24 x 2 mm Fuel Injector Diesel Compression Test Adapter for 34700 and 34900 Diesel Compression 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...For testing at fuel injector portDesigned to help to get your job done right$22.32
- S&G Tool Aid®M8 x 1 mm Glow Plug Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35720)M8 x 1 mm Glow Plug Diesel Compression Test Adapter for 34700 Diesel Compression 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$41.18
- S&G Tool Aid®M8 x 1 mm Glow Plug Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35450)M8 x 1 mm Glow Plug Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35450) 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$25.23
- S&G Tool Aid®Noid Light Set (36300)Universal Noid Light Set by S&G Tool Aid®. Quickly, easily and economically test electronic fuel injection signals. Easy to use - just disconnect the wiring to the fuel injectors, install the Noid Light into the injector wiring harness...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$22.71
- S&G Tool Aid®Noid Light-IAC Test Light And Ignition Spark Tester Set (36330)Noid Light-IAC Test Light And Ignition Spark Tester Set 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...Use to test electronic fuel injection signals, idle air control circuit and spark plug circuits.Quickly diagnose "no start" and engine miss conditions in the electrical fuel injection and spark plug circuits.$47.07
- S&G Tool Aid®Perma-Coil™ Jumper Test Leads (23150)Universal Perma-Coil™ Jumper Test Leads 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,...High quality retractile leads for all purpose circuit jumping and testingEliminates tangling$20.28
- S&G Tool Aid®Protect-A-Terminal™ 6 V/12 V/24 V Computer Safe Automotive Circuit Tester (28100)Universal Protect-A-Terminal™ 6 V/12 V/24 V Computer Safe Automotive Circuit Tester by S&G Tool Aid®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for...Our most computer safe circuit testerHigh impedance - the current draw is less than 7 milliamps to protect all vehicle circuits$15.12
- S&G Tool Aid®Protect-A-Terminal™ 6 V/12 V/24 V Heavy Duty Automotive Circuit Tester (28000)Universal Protect-A-Terminal™ 6 V/12 V/24 V Heavy Duty Automotive Circuit Tester 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...Our most computer safe circuit testerHigh impedance - the current draw is less than 7 milliamps to protect all vehicle circuits$15.65
- SUR&R®0 to 120 psi Deluxe Fuel Injection Pressure Tester Kit (FPT22)Universal 0 to 120 psi Deluxe Fuel Injection Pressure Tester Kit by SUR&R®. Accurately Diagnose Fuel Delivery Problems. Advanced kit tests faulty fuel pumps, pressure regulators, fuel lines, check valves, and fuel filters. This product...Make connections quickly and easily using S.U.R.&R.- exclusive Quick Connect adapters with thumb release, push button convenienceExtra-long, hose included for ease of use inside vehicle cabin$293.36
- SUR&R®12 mm Banjo Line Female Adapter (FSA70)Universal 12 mm Banjo Line Female Adapter by SUR&R®. 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...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$22.32
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.