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
- Robinair®Econo-Clean Heavy-Duty Truck Coolant 3-Way Test Strips Set (75234)Universal Econo-Clean Heavy-Duty Truck Coolant 3-Way Test Strips Set by Robinair®. To ensure coolant will provide adequate protection to the vehicle, the coolant should be adjusted to the manufacturer's specifications. These accessories...Provides an easy and affordable way of testing your engine’s cooling systemDesigned to assist in checking your antifreeze/coolant to maintain it at the proper concentration$61.08
- WIX®Coolant Analysis Kit (24240)Universal Coolant Analysis Kit by WIX®. Test your engine’s cooling system with this easy-to-use and reliable tester to prevent freeze-ups in cold weather and boil-overs during hot conditions and ward off corrosion to keep your vehicle...Provides an easy and affordable way of testing your engine’s cooling systemDesigned to assist in checking your antifreeze/coolant to maintain it at the proper concentration$38.66
- WIX®Coolant Test Strips Bottle, 50 Pieces (24106)Universal Coolant Test Strips Bottle, 50 Pieces by WIX®. Coolant Test Strips for Standard Service - test for 3 things: nitrite level, freeze point, pH level. Test your engine’s cooling system with this easy-to-use and reliable tester...Provides an easy and affordable way of testing your engine’s cooling systemDesigned to assist in checking your antifreeze/coolant to maintain it at the proper concentration$45.66
- WIX®Coolant Test Strips Kit (24107)Universal Coolant Test Strips Kit by WIX®. Coolant Test Strips for Standard Service - test for 3 things: nitrite level, freeze point, pH level. Test your engine’s cooling system with this easy-to-use and reliable tester to prevent...Provides an easy and affordable way of testing your engine’s cooling systemDesigned to assist in checking your antifreeze/coolant to maintain it at the proper concentration$54.27
- WIX®Standard Service Coolant Test Strips, 48 Pieces (24105)Universal Standard Service Coolant Test Strips, 48 Pieces by WIX®. Coolant Test Strips for Standard Service - test for 3 things: nitrite level, freeze point, pH level. Test your engine’s cooling system with this easy-to-use and...Provides an easy and affordable way of testing your engine’s cooling systemDesigned to assist in checking your antifreeze/coolant to maintain it at the proper concentration$49.04
- Performance Tool®0 to 10 psi Vacuum and Fuel Pump Tester (W80594)Universal 0 to 10 psi Vacuum and Fuel Pump Tester 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...Check fuel pump suction or pressureTests settings of the carburetor$19.71
- Performance Tool®1" to 1-1/16" Oil Pressure Sensor Socket (W1130)Universal 1" to 1-1/16" Oil Pressure Sensor Socket by Performance Tool®. 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$5.38
- Performance Tool®Brake Fluid Tester (W182)Universal Brake Fluid Tester (W182) by Performance Tool®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured...Determines Moisture Level in Brake Fluid5 LED Readout Indicates Percentage of Moisture$31.34
- Performance Tool®Brake Fluid Tester (W181)Universal Brake Fluid Tester (W181) by Performance Tool®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured...Determines Moisture Level in Brake Fluid5 LED Readout Indicates Percentage of Moisture$20.72
- Performance Tool®Deluxe Battery Filler (W1641)Deluxe Battery Filler by Performance Tool®. 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...Acid resistant 6 oz. bulb, 6" spoutDesigned to help to get your job done right$4.69
- Performance Tool®High Energy Ignition Tester (W84600)Universal High Energy Ignition Tester by Performance Tool®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....Checks for spark in no Start conditionTests standard, electronic or DIS KV systems$11.10
- Performance Tool®IPR Valve Socket (W80592)IPR Valve Socket by Performance Tool®. 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...The IPR valve is located in a hard to reach location, this tool avoids the high labor costs by saving timeSlotted design accesses the hex without putting torque on the plastic connector in case it can be reused$14.88
- Performance Tool®Ignition Tester (W86553)Universal Ignition Tester by Performance Tool®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Checks for ignition spark without removing spark plug from engineEasily checks if there is sufficient energy for spark plug to ignite$18.73
- Performance Tool®Inline Ignition Spark Tester (W86554)Universal Inline Ignition Spark Tester by Performance Tool®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....Easily connects between the spark plug and spark plug wireWith the engine running, the tool flashes a mirror image of ignition spark$5.42
- Performance Tool®Spark Plug Wire Tester (W80530)Universal Spark Plug Wire Tester by Performance Tool®. 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 delivers unmatched...Identifies damaged spark plug wires easilyTester flashes in sync with spark plug firing until it runs across a break in wire$6.65
- Autel®MaxiVideo™ 5.5 mm x 39.37" Recording Waterproof Videoscope Inspection System (MV400-55)MaxiVideo™ 5.5 mm x 39.37" Recording Waterproof Videoscope Inspection System (MV400-55) by Autel®. This premier Autel MaxiVideo TM MV400 digital videoscope is an ideal tool for inspecting difficult-to-reach areas normally hidden from...Imager Head and Cable Waterproof to 3 m (10')Records and plays back still images and video clips$187.62
- Autel®MaxiVideo™ 8.5 mm x 39.4" Recording Waterproof Videoscope Inspection System (MV460)MaxiVideo™ 8.5 mm x 39.4" Recording Waterproof Videoscope Inspection System (MV460) by Autel®. The MaxiVideo MV460, the next generation of digital videoscope, is ideal for inspecting difficult-to-reach areas with its semi-rigid...Imager Heads and Cable Waterproof to a Depth of 1 m (39.4")High resolution images and videos$295.00
- IPA®Disc Brake System Analyzer (7884)Disc Brake System Analyzer by IPA®. Eliminates guesswork when troubleshooting disc brake problems. The Disc Brake System Analyzer comes with 2 load cells Attached to analog gauges, each with a range of 0-5000 PSI 0-350 BAR. A red "Tell...Has two load cells attached to analog gauges that each have a range of 0-5000 lbsGauges are built with a red tell-tale memory needle that allows for one-man brake testing$228.71
- OTC®0 to 100 psi Fuel Pressure Tester Kit (5630)Universal 0 to 100 psi Fuel Pressure Tester Kit by OTC®. Quickly and easily locate any malfunctioning fuel system component, including fuel filters, pressure regulators, fuel lines, and fuel pumps without removing it from the vehicle.Large, easy-to-readSolid brass fittings$51.59
- OTC®0 to 100 psi Pressure Gauge for 7211 Pressure Tester (309124)Universal 0 to 100 psi Pressure Gauge for 7211 Pressure Tester (309124) by OTC®. 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...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$72.01
- OTC®0 to 100 psi Pro Master Fuel Injection Tester Kit (6550PRO)Universal 0 to 100 psi Pro Master Fuel Injection Tester Kit by OTC®. Perform fuel pressure testing, diagnose weak fuel pumps or restricted filters, test for fuel flow and perform leak-down tests. This product is made of high-quality...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$787.56
- OTC®0 to 15 psi Fuel System Vacuum and Pressure Tester Kit (5613)Universal 0 to 15 psi Fuel System Vacuum and Pressure Tester Kit by OTC®. The 5613 is deal for testing vacuum lines and components. Accurately tests low pressure fuel systems. Quickly diagnose internal engine problems such as bad rings,...Pin point hard to find problems such as cracked linesLarge gauge features a chrome bezel and rugged protective outer boot$42.31
- OTC®0 to 22000 psi Diesel Fuel Pressure Tester (3674)Universal 0 to 22000 psi Diesel Fuel Pressure Tester by OTC®. 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,...Read diesel fuel pressure in vehicleNo fittings required$244.47
- OTC®0 to 30 psi Vacuum and Pressure Tester Kit (6975)Universal 0 to 30 psi Vacuum and Pressure Tester Kit by OTC®. The 6975 Vacuum/Pressure System Tester can immediately diagnose leaks in pressure or vacuum systems. The patented design includes an intuitive rotary dial for quick switching...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$228.57
- OTC®0 to 3000 psi Heavy Duty Power Steering Pump Oil Pressure Tester (5079)Universal 0 to 3000 psi Heavy Duty Power Steering Pump Oil Pressure Tester by OTC®. There is only one way to troubleshoot problem components in a heavy-duty power steering system: a flow and pressure reading meter. This product is...When connected in line, this universal analyzer will isolate the failed components in just minutesThere is no wasted time as in trial and error methods$870.75
- OTC®0 to 400 psi Automatic Transmission and Engine Oil Pressure Tester (5610)Universal 0 to 400 psi Automatic Transmission and Engine Oil Pressure Tester by OTC®. The 5610 professional kit can be used for domestic and import applications. High and low pressure gauges make this kit useful for both transmission...Large gauges feature a chrome bezel and rugged protective outer bootBoth gauges include rear hook to allow gauge to be hung conveniently out of the way$106.89
- OTC®0 to 5000 psi Heavy Duty Digital Oil Pressure Tester (3492)Universal 0 to 5000 psi Heavy Duty Digital Oil Pressure Tester 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...Manufactured for your oil system maintenanceBuilt to enhance your productivity$1,118.25
- OTC®1-1/16" Oil Pressure Sensor Socket (4673-3)Universal 1-1/16" Oil Pressure Sensor Socket (4673-3) 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...Manufactured for your oil system maintenanceBuilt to enhance your productivity$24.66
- OTC®2-piece Air Brake Line Release Tools (5089)Universal 2-piece Air Brake Line Release Tools 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...Tools used to separate connectors on the P/S system and EGR coolers without damageCan also be used for connectors on other liquid and air lines$88.87
- OTC®7/16-20 90° Elbow Quick Disconnect Fuel Injection Fitting (549578)Universal 7/16-20 90° Elbow Quick Disconnect Fuel Injection Fitting 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$50.62
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.