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
- FJC®Radiator Coolant DyeUniversal Radiator Coolant Dye by FJC®. Radiator Coolant Dyes by FJC are for use with Ultraviolet leak detection kits to aid in finding coolant leaks. These dyes are made of high-quality materials with customers in mind.Pinpoint leaks in cooling systems, including radiators, hoses, fittings, water pumps and head gasketsUse 1 oz per 4 gallons coolant$6.79 - $6.92
- FJC®Universal DyeUniversal Universal Dye by FJC®. Universal dye specially formulated to pinpoint car oil leaks, transmission leaks, fuel leaks, and power steering fluid leaks. Keep your pride and joy running in tip-top shape with this top-grade...Can be detected using any UV or Blue LightPOE Ester based$8.87 - $32.99
- Flaming River®Self-Powered Single-Wire Timing LightUniversal Self-Powered Single-Wire Timing Light by Flaming River®. 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...State-of-the-art single-wire design (operated on two D-Cell batteries)Excellent for use with magnetos and all spark ignition systems$89.40 - $154.97
- IPA®Fuse Saver™ Electrical System and Fuse Tester KitUniversal Fuse Saver™ Electrical System and Fuse Tester Kit by IPA®. No More Overheating Fuse Boxes! The Fuse Saver® provides a fast and safe solution for troubleshooting short circuits without blowing fuses or “smoke testing”...Provides a fast and safe solution to the old methods of "smoke testing" a shortChase down short circuits without blowing fuses$78.71
- IPA®Fuse Saver™ Replacement HandleUniversal Fuse Saver™ Replacement Handle by IPA®. These Fuse Saver™ handle replacements come in multiple sizes. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and...Designed for your maintenance needsMade from high-grade material for a long lifespan$29.97 - $31.12
- Interdynamics®AutoPRO™ Oil/Fuel Systems UV Fluorescent Leak Detector DyeUniversal AutoPRO™ Oil/Fuel Systems UV Fluorescent Leak Detector Dye by Interdynamics®. Certified A/C Pro Oil And Fuel Systems UV Dye is for use in engine oil, transmissions, power steering systems, and gas or diesel fuel systems to...Oil and Fuel System UV DyeOne application of oil & fuel system UV leak detection dye$8.02 - $10.94
- Lang Tools®0 to 300 psi Analog Petrol Compression Tester SetUniversal 0 to 300 psi Analog Petrol Compression Tester Set by Lang Tools®. 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$53.13 - $131.84
- Lang Tools®Analog Diesel Compression Test SetAnalog Diesel Compression Test Set by Lang Tools®. 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...This is a great basic set and a must have for diesel work in the American marketTester has a handy deflator for releasing air and re-testing$168.05 - $220.75
- Lang Tools®Analog Diesel Compression Test SetAnalog Diesel Compression Test Set by Lang Tools®. 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...This is a great basic set and a must have for diesel work in the American marketTester has a handy deflator for releasing air and re-testing$168.05 - $220.75
- Lang Tools®Diesel Adapter for use with Diesel Compression Tester TU-15Diesel Adapter for use with Diesel Compression Tester TU-15 by Lang Tools®. 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$18.65 - $73.97
- Lang Tools®Glow Plug Diesel Adapter for use with Diesel Compression Tester TU-15Glow Plug Diesel Adapter for use with Diesel Compression Tester TU-15 by Lang Tools®. 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$15.77 - $16.87
- Lang Tools®High Pressure Oil System TesterHigh Pressure Oil System Tester by Lang Tools®. 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...Manufactured for your oil system maintenanceBuilt to enhance your productivity$412.04 - $972.13
- Lang Tools®Magnetic Retractable Test LeadsUniversal Magnetic Retractable Test Leads by Lang Tools®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs,...Retractable test leads pull out and stay at desired length and rewind into its own protective case when not in useDesigned for your maintenance needs$26.51 - $37.80
- Lang Tools®Retractable Test LeadsUniversal Retractable Test Leads by Lang Tools®. 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...Retractable test leads pull out and stay at desired length and rewind into its own protective case when not in useDesigned for your maintenance needs$14.56 - $30.88
- Launch Tech®Battery TesterUniversal Battery Tester by Launch Tech®. 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...Battery Health with available CCAVehicle starting voltage detection$99.67 - $209.14
- Lisle®Deluxe Relay Tester SetUniversal Deluxe Relay Tester Set by Lisle®. Includes 8 Jumpers to Fit Most Popular Relays. Also Includes Test Lead Kit and Relay Puller Pliers. Jumpers have tabs for clamping and flat pads to place test leads on. No need to pierce...Designed for your maintenance needsMade from high-grade material for a long lifespan$155.82
- Lisle®Relay JumperUniversal Relay Jumper by Lisle®. 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$19.01 - $20.82
- Lisle®Replacement BulbUniversal Replacement Bulb by Lisle®. 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$3.57 - $4.11
- Longacre®Replacement Screw-In Steel Swivel FeetsUniversal Replacement Screw-In Steel Swivel Feets by Longacre®. This top-notch product is designed to help you get in the know of the vehicle’s weight. Made from superior materials, it will provide you with the utmost in quality,...1/2" - 13Designed to help to get your job done right$49.99 - $104.99
- Mastercool®Combustion Gas Leak Tester KitUniversal Combustion Gas Leak Tester Kit by Mastercool®. 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...Dual chamber for improved accuracy and to reduce the risk of coolant contaminating the testWorks on gasoline & diesel engines$71.94 - $88.36
- Mastercool®Raptor Refrigerant Leak DetectorUniversal Raptor Refrigerant Leak Detector by Mastercool®. 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...Digital Signal Micro ProcessorVisual Leak Level Indicator$191.87 - $288.94
- Mastercool®Refrigerant Visual Inspection Sight GlassUniversal Refrigerant Visual Inspection Sight Glass by Mastercool®. The condition of the refrigerant in your A/C system is an important factor in the proper operation of all components and overall cooling efficiency. The only way to...Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$148.52 - $162.78
- Midtronics®Replacement CableUniversal Replacement Cable by Midtronics®. 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 to help to get your job done rightManufactured utilizing the highest quality materials$75.07 - $91.55
- Milton®Battery TesterUniversal Battery Tester by Milton®. 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...Tests 6 and 12 volt batteriesAnalog display is easy to read$52.11 - $69.41
- Milton®Circuit TesterUniversal Circuit Tester by Milton®. 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 and...Designed for your maintenance needsMade from high-grade material for a long lifespan$10.19 - $14.37
- Mityvac®Fuel System Tester KitUniversal Fuel System Tester Kit by Mityvac®. 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$603.25 - $826.36
- NEXIQ®Pro-Link iQ™ Caterpillar Electronic Engines SoftwarePro-Link iQ™ Caterpillar Electronic Engines Software by NEXIQ®. The Pro-Link iQ Caterpillar Electronic Engines software application provides reprogramming and diagnostic capability for CAT electronic systems. With the combined power...Easy to usePortable$1,232.39
- OTC®Charged Air Cooler TesterCharged Air Cooler Tester by OTC®. This is the easy way to find air leaks in the charged air cooler systems used on class 7 and 8 truck engines. The tester features a large 2-1/2", 0-60 PSI pressure gauge, regulator and relief...Superior grade materials for unbeatable safety and comfortExpertly crafted utilizing advanced technologies$359.08
- OTC®Oil Pressure AdapterOil Pressure Adapter 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 made...Manufactured for your oil system maintenanceBuilt to enhance your productivity$91.44
- OTC®Oil Pressure Sensor SocketUniversal Oil Pressure Sensor Socket 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$19.81 - $24.66
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.