Semi Truck 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
- Autel® - MaxiSYS™ 1 Year Update and Warranty Total Care Program CardUniversal MaxiSYS™ 1 Year Update and Warranty Total Care Program Card by Autel®. 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...Assists in the vehicle’s diagnostics to help maintain its well-beingBuilt to make the process fast, easy, and reliable$795.00 - $1,308.93
- Autel® - MaxiSYS™ 1 Year Software Update Total Care Program CardUniversal MaxiSYS™ 1 Year Software Update Total Care Program Card by Autel®. 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...Assists in the vehicle’s diagnostics to help maintain its well-beingBuilt to make the process fast, easy, and reliable$850.00 - $1,495.00
- OTC® - Replacement Cable KitUniversal Replacement Cable Kit 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$141.73 - $154.19
- Autel® - MaxiVideo™ 5.5 mm Recording Waterproof Videoscope Inspection SystemMaxiVideo™ 5.5 mm Recording Waterproof Videoscope Inspection System by Autel®. 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...Imager Head and Cable Waterproof to 3 m (10')Records and plays back still images and video clips$139.95 - $187.62
- Autel® - MaxiVideo™ 8.5 mm Recording Waterproof Videoscope Inspection SystemMaxiVideo™ 8.5 mm Recording Waterproof Videoscope Inspection System by Autel®. 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...On-screen horizontal/vertical reverseDigital zoom for increased viewing$221.25 - $395.00
- Associated Equipment® - Automatic Battery and Electrical System TesterUniversal Automatic Battery and Electrical System Tester by Associated Equipment®. An automated battery testing unit that uses no dirty, maintenance-prone carbon piles. Just enter the discharge current, press the “start” button and...Easy-to-read LED voltmeter and ammeter500A safety clamps with “Flexi-Spring” and patented side terminal adapters$1,755.57 - $2,291.08
- Associated Equipment® - Battery Load TesterUniversal Battery Load Tester by Associated Equipment®. 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...Made in USAOne Year Warranty$962.26 - $1,800.64
- Associated Equipment® - Carbon Pile Battery Load TesterUniversal Carbon Pile Battery Load Tester by Associated Equipment®. 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$155.06 - $1,622.27
- Associated Equipment® - Handheld Digital Battery, Alternator, Starter TesterUniversal Handheld Digital Battery, Alternator, Starter Tester by Associated Equipment®. 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...Stores last test series with or without powerBattery test displays:$209.61 - $431.23
- Auto Meter® - Variable Electrical System and Battery Load TesterUniversal Variable Electrical System and Battery Load Tester by Auto Meter®. 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$579.95 - $2,757.95
- Baldwin Filters® - FleetStrip™ Coolant Test Strip KitUniversal FleetStrip™ Coolant Test Strip Kit by Baldwin Filters®. Liquid supplemental coolant additives can be used instead of coolant filters to replenish the cooling system when depleted. Periodic testing of coolant mixtures should...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$2.67 - $11.69
- CTA® - High Pressure Rail Adapter SocketHigh Pressure Rail Adapter Socket by CTA®. When it comes to quality, CTA knows no compromises. All the products made by this stringent quality control conditions. The latest manufacturing methods coupled with the use of the...Removes & installs the Fuel Injector Adapter from the High Pressure Rail to service O-ringsSpecialty tools to get your job done in a safer and easier fashion$14.27
- Central Tools® - STORM™ Digital Drum GaugeUniversal STORM™ Digital Drum Gauge by Central 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$191.37 - $273.01
- Central Tools® - Standard Test GageUniversal Standard Test Gage by Central 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$30.26 - $42.65
- Central Tools® - Tire And Wheel Runout Gage with Locking PliersUniversal Tire And Wheel Runout Gage with Locking Pliers by Central 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$371.21 - $391.55
- Electronic Specialties® - Digital Electrical System and Battery TesterUniversal Digital Electrical System and Battery Tester by Electronic Specialties®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system...Accurate Battery & Electrical System TesterFeatures programmed test for new Start/Stop Batteries$262.03
- Electronic Specialties® - Fuse Buddy™ ATC Fuse TesterUniversal Fuse Buddy™ ATC Fuse Tester by Electronic Specialties®. 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$21.83 - $23.63
- Electronic Specialties® - Fuse Buddy™ Current LoopUniversal Fuse Buddy™ Current Loop by Electronic Specialties®. Just clamp your current probe over the loop to access the amperage draw through a fused circuit. Easy testing access, plugs right into fuse socket, no more hand made...Designed to help to get your job done rightManufactured utilizing the highest quality materials$15.63
- Equus® - INNOVA™ Timing LightUniversal INNOVA™ Timing Light by Equus®. 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...One-hand OperationDesigned to help to get your job done right$94.97 - $144.72
- FJC® - A/C Fluorescent Leak Detection DyeUniversal A/C Fluorescent Leak Detection Dye by FJC®. 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$2.86 - $54.75
- FJC® - Battery TesterUniversal Battery Tester by FJC®. The Power Division of FJC is an industry-leading manufacturer and distributor of power electronic products and systems for mobile markets including battery testers, chargers, maintainers, power...Manufactured for your battery maintenance tasksBuilt to meet strict quality standards and safety requirements$45.85 - $363.70
- FJC® - Carbon Pile Battery Load TesterUniversal Carbon Pile Battery Load Tester by FJC®. The Power Division of FJC is an industry-leading manufacturer and distributor of power electronic products and systems for mobile markets including battery testers, chargers,...Separate Volt and A metersDesigned to help to get your job done right$142.24 - $450.98
- 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 - $7.02
- 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$5.85 - $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
- Four Seasons® - ECV Compressor Diagnostic Tool Female Harness ConnectorUniversal ECV Compressor Diagnostic Tool Female Harness Connector by Four Seasons®. Diagnostic Tool. ECV compressor connector. Four Seasons products are engineered and tested to provide years of trouble free operation. Backed by over 50...Designed to keep your A/C system in top shapeThe finest quality at a great price$6.97 - $11.41
- Four Seasons® - ECV Compressor Diagnostic Tool Male Harness ConnectorUniversal ECV Compressor Diagnostic Tool Male Harness Connector by Four Seasons®. Diagnostic Tool. ECV compressor connector. Four Seasons products are engineered and tested to provide years of trouble free operation. Backed by over 50...Designed to keep your A/C system in top shapeThe finest quality at a great price$8.38 - $10.64
- Fowler High Precision® - EZ-Drum Electronic Brake Drum GaugeUniversal EZ-Drum Electronic Brake Drum Gauge by Fowler High Precision®. 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...Beam has vernier scale to double check readingDesigned to help to get your job done right$182.27 - $213.11
- Fowler High Precision® - Rotocal™ 0 to 5.5" Electronic Rotor GaugeUniversal Rotocal™ 0 to 5.5" Electronic Rotor Gauge by Fowler High Precision®. 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...Direct inch/metric/fraction conversionWater resistant to IP54 standards$75.61 - $124.12
- 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
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.