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
- OTC®III/IV Engine Software (3101-69)III/IV Engine Software (3101-69) 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...Assists in the vehicle’s diagnostics to help maintain its well-beingBuilt to make the process fast, easy, and reliable$1,023.34
- OTC®M12 x 1.25 mm Diesel Compression Adapter for Compression Tester Kit 5020 (47484)M12 x 1.25 mm Diesel Compression Adapter for Compression Tester Kit 5020 (47484) by OTC®. Easy-to-use compression tester is designed specifically for medium-duty diesel engines equipped with glow plugs. Dual reading gauge measures...Designed to help to get your job done rightManufactured utilizing the highest quality materials$142.66
- OTC®Nozzle Tester Adapter Set (J-42639)Universal Nozzle Tester Adapter Set by OTC®. For E-Tech (E7 EUP). 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$853.69
- OTC®Oil Pressure Adapter Plate (ZTSE4654)Oil Pressure Adapter Plate (ZTSE4654) by OTC®. 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 operation of the system. The...Manufactured for your oil system maintenanceBuilt to enhance your productivity$357.87
- OTC®Oil Pressure Gauge Kit (J-21867-A)Oil Pressure Gauge Kit by OTC®. 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 operation of the system. The product is...Manufactured for your oil system maintenanceBuilt to enhance your productivity$1,289.78
- OTC®Oil Pressure Leak Test Adapter Set (303-756)Oil Pressure Leak Test Adapter Set (303-756) 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$385.01
- OTC®PCMCIA Cartridge (3101-72)PCMCIA Cartridge (3101-72) 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$1,003.04
- OTC®Pegisys™ Diagnostic System Handset Version Scan Tool Kit with 2012 Software (3825JR12)Universal Pegisys™ Diagnostic System Handset Version Scan Tool Kit with 2012 Software by OTC®. Designed with maximum accuracy and precision in mind, this tool is the ultimate solution that will help make automotive diagnostic scanning...Assists in the vehicle’s diagnostics to help maintain its well-beingBuilt to make the process fast, easy, and reliable$3,578.29
- OTC®Petrol Compression Tester Adapter (J-45392)Petrol Compression Tester 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 deliver great...Designed to help to get your job done rightManufactured utilizing the highest quality materials$725.07
- OTC®Plastic Nozzle and Hose Assembly (6525-9)Universal Plastic Nozzle and Hose Assembly by OTC®. For 6525 Models 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...Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$76.22
- OTC®Tube Adapter (31017)Universal Tube 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 deliver great quality at...Designed to help to get your job done rightManufactured utilizing the highest quality materials$865.76
- Power Probe®12" Red Wire Extension (CCTPNLS025-12RED)Universal 12" Red Wire Extension by Power Probe®. 1' Standard Banana jack test lead (10 gauge) with Stackable connector including male and female and female end. Stackable connector allows multiple connections. Your electrical system...Adapts Standard 4mm Banana Jack Test LeadsStackable Connector$9.05
- Power Probe®3" Tip (CCTPN006)Universal 3" Tip (CCTPN006) by Power Probe®. 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$6.47
- Power Probe®36" Black Stackable Banana Jack Lead (CCTPNLS025-36BLK)Universal 36" Black Stackable Banana Jack Lead by Power Probe®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs,...Adapts standard 4 mm Banana Plug Test Cable of connectorStackable connector$12.81
- Power Probe®9" Tip (CCTPN006L)Universal 9" Tip (CCTPN006L) by Power Probe®. 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$5.28
- Power Probe®Banana Plug Lead wirh Alligator Clip (CCTPNECT057)Universal Banana Plug Lead wirh Alligator Clip by Power Probe®. 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 for your maintenance needsMade from high-grade material for a long lifespan$7.30
- Power Probe®Electric Bleeder Gauge (CCTSTGAGE01)Universal Electric Bleeder Gauge by Power Probe®. 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$86.67
- Power Probe®Flat Blade Fuse Adapter (CCTAA4)Universal Flat Blade Fuse Adapter by Power Probe®. 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$6.08
- Power Probe®Piercing Probe Set (CCTPPPPSET)Universal Piercing Probe Set by Power Probe®. 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...Female to female adapterSelf-centering and adjustable$20.39
- Power Probe®Switch Latch for Power Probe 3 (CCTPPSL3)Universal Switch Latch for Power Probe 3 (CCTPPSL3) by Power Probe®. 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$5.21
- S&G Tool Aid®0 to 100 psi CIS K-Jetronic Fuel Injection Pressure Tester with Quick Couplers in Storage Case (53865)Universal 0 to 100 psi CIS K-Jetronic Fuel Injection Pressure Tester with Quick Couplers in Storage Case by S&G Tool Aid®. Tests CIS (Continuous Injection System) found on European cars and Volkswagen models assembled in the U.S. These...Designed to help to get your job done rightManufactured utilizing the highest quality materials$143.73
- S&G Tool Aid®0 to 100 psi Fuel Injection Pressure Tester with Quick Couplers (53900)0 to 100 psi Fuel Injection Pressure Tester with Quick Couplers (53900) 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...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$115.39
- S&G Tool Aid®0 to 100 psi Fuel Injection Pressure Tester with Two Gauges and Quick Couplers (53950)0 to 100 psi Fuel Injection Pressure Tester with Two Gauges and Quick Couplers (53950) 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...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$113.53
- S&G Tool Aid®0 to 100 psi Multi-Port Fuel Injection Pressure Tester with Quick Couplers (56200)0 to 100 psi Multi-Port Fuel Injection Pressure Tester with Quick Couplers (56200) by S&G Tool Aid®. Tests the gasoline fuel pressure on virtually all domestic and foreign vehicles equipped with Multi-port fuel injection. Can also test...Adapter for large Schrader valvesDesigned to help to get your job done right$201.81
- S&G Tool Aid®0 to 100 psi Replacement Fuel Injection Pressure Gauge (33801)Universal 0 to 100 psi Replacement Fuel Injection Pressure Gauge 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...This in-line pressure tester indicates problem sources - control pressure regulator, fuel distributors or other specific fuel injection components that may require replacingTests C.I.S. Non-Electronic with metric threads, C.I.S./Lambda Electronic with metric threads and C.I.S. E-Electronic with metric threads$22.02
- S&G Tool Aid®0 to 100 psi Replacement Pressure Gauge for 58000 Basic Fuel Injection Pressure Tester (56248)Universal 0 to 100 psi Replacement Pressure Gauge for 58000 Basic Fuel Injection Pressure Tester 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...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$67.29
- S&G Tool Aid®10 mm Adapter for 34550 Automatic Transmission and Engine Oil Pressure Testers (34524)Universal 10 mm Adapter for 34550 Automatic Transmission and Engine Oil Pressure Testers (34524) 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...Manufactured for your oil system maintenanceBuilt to enhance your productivity$4.57
- S&G Tool Aid®3/8" Hair Pin Adapter (57280)3/8" Hair Pin Adapter (57280) 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$36.68
- S&G Tool Aid®48" Fuel Injection Pressure Tester Hose (33936)Universal 48" Fuel Injection Pressure Tester Hose (33936) 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$50.19
- S&G Tool Aid®8 mm Adapter for 34550 Automatic Transmission and Engine Oil Pressure Testers (34527)Universal 8 mm Adapter for 34550 Automatic Transmission and Engine Oil Pressure Testers (34527) 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...Manufactured for your oil system maintenanceBuilt to enhance your productivity$8.10
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.