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
- SUR&R®Rubber Hose to Nylon ConnectorUniversal Rubber Hose to Nylon Connector 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$13.58 - $13.79
- Stant®Fuel Cap Testing Calibration CapUniversal Fuel Cap Testing Calibration Cap by Stant®. 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$69.69 - $70.22
- Performance Tool®Fuel Injection Noid LightFuel Injection Noid Light by Performance Tool®. 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$3.39 - $5.25
- OTC®Oil Pressure and Prelube AdapterOil Pressure and Prelube Adapter by OTC®. Easily diagnose engine oil system issues. This adapter installs in place of the spin-on oil filter to allow existing oil pressure gauges to be attached to test oil system pressure. Can also be...Easily diagnoses oil system issuesAllows connection of oil pressure gauges to oil filter housing$104.33
- Interdynamics®EzChill™ RefrigerantUniversal EzChill™ Refrigerant by Interdynamics®. 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$15.90 - $20.09
- Mastercool®Dual EVAP/High Pressure Diagnostic Smoke MachineUniversal Dual EVAP/High Pressure Diagnostic Smoke Machine by Mastercool®. This unit is for evap, turbo/intake and heavy duty truck testing providing a solution to difficult to diagnose automotive leaks. Mobile repairs are now possible...Compact, heavy duty design for years of reliable serviceMultiple options for smoke injection include built-in internal compressor, shop air and inert gases$1,358.31 - $1,715.31
- Tracer Products®OPTI-PRO™ UV MAX Leak Detection Light KitUniversal OPTI-PRO™ UV MAX Leak Detection Light Kit by Tracer Products®. 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...Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$107.98 - $134.97
- S&G Tool Aid®Replacement LensUniversal Replacement Lens 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$7.92 - $8.95
- S&G Tool Aid®Valve CoreUniversal Valve Core 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$1.82 - $3.71
- Lang Tools®Replacement Pressure GaugeUniversal Replacement Pressure Gauge by Lang Tools®. 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$14.88 - $82.73
- MotoRad®Quick-On Fuel Cap Tester AdapterUniversal Quick-On Fuel Cap Tester Adapter by MotoRad®. 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$13.43 - $29.62
- S&G Tool Aid®0 to 1000 psi Analog Diesel Engine Compression Testing Set (35750)0 to 1000 psi Analog Diesel Engine Compression Testing Set (35750) 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....Designed to help to get your job done rightManufactured utilizing the highest quality materials$140.58
- S&G Tool Aid®0 to 1000 psi Analog Diesel Engine Compression Testing Set (34900)0 to 1000 psi Analog Diesel Engine Compression Testing Set (34900) 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....Designed to help to get your job done rightManufactured utilizing the highest quality materials$204.30
- S&G Tool Aid®Fuel Injector Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35600)Fuel Injector Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35600) 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$84.49
- 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$56.06
- S&G Tool Aid®Fuel Injector Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35300)Fuel Injector Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35300) 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$57.70
- 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 (35400)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$60.49
- 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$58.16
- 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®M10 x 1.25 mm Glow Plug Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35550)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$23.46
- S&G Tool Aid®M12 x 1.25 mm and M18 x 1.5 mm Glow Plug Diesel Compression Test Adapter for 34700 Diesel Compression Tester (34780)M12 x 1.25 mm and M18 x 1.5 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...Has piggy-back 12mm-1.25 & 18mm-1.50 threads for testing at glow plug portDesigned to help to get your job done right$42.35
- S&G Tool Aid®M12 x 1.25 mm and M18 x 1.5 mm Glow Plug Diesel Compression Test Adapter for 34700 Diesel Compression Tester (34880)M12 x 1.25 mm and M18 x 1.5 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$31.67
- 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$33.73
- 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$82.31
- S&G Tool Aid®M24 x 1.5 mm Fuel Injector Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35150)M24 x 1.5 mm Fuel Injector Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35150) 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$52.50
- 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$25.72
- S&G Tool Aid®M25 x 1.5 mm Fuel Injector Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35730)M25 x 1.5 mm 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$80.86
- S&G Tool Aid®M8 x 1 mm Glow Plug Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35740)M8 x 1 mm Glow Plug Diesel Compression Test Adapter for 34700 Diesel Compression Tester (35740) 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$70.78
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.