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
- Lang Tools®Schrader HoseSchrader Hose 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 your time and protecting...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$10.69 - $17.27
- Lisle®Banana Female Safety Test ProbeUniversal Banana Female Safety Test Probe by Lisle®. 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$16.91 - $19.52
- Lisle®Long Straight ProbeUniversal Long Straight Probe by Lisle®. 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$7.18
- Mityvac®Fuel System Test Adapter KitFuel System Test Adapter Kit by Mityvac®. Together, they fit most US, Asian, and European manufactured vehicles. Each can be ordered separately using the part number indicated below. This product is designed and manufactured to help you...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$159.13
- OTC®III/IV Engine SoftwareIII/IV Engine Software by OTC®. will last a lifetime. It will meet your needs and deliver great quality at an affordable cost.Superior grade materials for unbeatable safety and comfortExpertly crafted utilizing advanced technologies$1,023.34
- OTC®Vacuum Pressure Tester KitVacuum Pressure Tester Kit 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, saving your time and...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$1,015.74
- Power Probe®TipUniversal Tip 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 and benefits...Designed for your maintenance needsMade from high-grade material for a long lifespan$5.28 - $6.47
- S&G Tool Aid®AdapterUniversal Adapter 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 pressure under control for smooth and safe operation of the system. The product is...Manufactured for your oil system maintenanceBuilt to enhance your productivity$4.57 - $8.10
- Wohler®Replacement CCD LensReplacement CCD Lens by Wohler®. 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...High quality at an affordable priceExpertly made from premium materials$126.90 - $215.10
- Wohler®Replacement Camera RodReplacement Camera Rod by Wohler®. 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...High quality at an affordable priceExpertly made from premium materials$242.10 - $558.00
- Wohler®Replacement Circuit BoardReplacement Circuit Board by Wohler®. 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...High quality at an affordable priceExpertly made from premium materials$64.80 - $369.00
- Wohler®Replacement ObjectiveReplacement Objective by Wohler®. 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...High quality at an affordable priceExpertly made from premium materials$117.90 - $138.60
- Central Tools®8" to 24" Digital Drum Gauge (3B532)Universal 8" to 24" 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$245.60
- Central Tools®0 to 1" Tire And Wheel Runout Gage with Locking Pliers (6454)Universal 0 to 1" Tire And Wheel Runout Gage with Locking Pliers (6454) 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...Special locking pliers for mountingLarge radius contact for tires$371.21
- Central Tools®0" to 2.5" Brake Force Rotor Gage (6459A)Universal 0" to 2.5" Brake Force Rotor 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...Digital accuracy with Swiss electronicsDrum gages have selectable depth stops to reduce measuring errors$469.12
- Central Tools®1" to 2" Conventional Disc Brake Micrometer (6203)Universal 1" to 2" Conventional Disc Brake Micrometer 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...Specifically designed for todays larger-sized rotorsEasier to measure across the entire braking surface$171.59
- Central Tools®50 mm Metric Standard Test Gage (6286)Universal 50 mm Metric Standard Test Gage (6286) 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$31.79
- Central Tools®6" to 14.5" Brake Drum Gauge (6456)Universal 6" to 14.5" Brake 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...Contacts are pointedFeatures Inch and Metric Scales$211.97
- Central Tools®6" to 14.5" Brake Force Drum Gage (6469A)Universal 6" to 14.5" Brake Force Drum 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...Digital accuracy/Swiss electronicsSelectible depth stops$713.15
- Central Tools®6" to 22" Brake Drum Wear Limit Gauge (6478)Universal 6" to 22" Brake Drum Wear Limit Gauge by Central Tools®. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the perfect deal for your ultimate...Made with precision and quality in mindBuilt to last$290.32
- Central Tools®75 mm Metric Standard Test Gage (6287)Universal 75 mm Metric Standard Test Gage (6287) 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$35.18
- Central Tools®Brake Force Rotor/Drum Gage (6499A)Universal Brake Force Rotor/Drum 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...Made with precision and quality in mindBuilt to last$1,388.80
- Central Tools®STORM™ 8" to 13" Jaw Adapter Set for Digital Caliper (3K300)Universal STORM™ 8" to 13" Jaw Adapter Set for Digital Caliper 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...Allows caliper to convert to a rotor or drum measuring gageWill measure all brake rotors or drums up to 12"$50.38
- AMMCO®6-1/2" to 14-1/4" Brake Shoe Setting Gauge (908650)Universal 6-1/2" to 14-1/4" Brake Shoe Setting Gauge by AMMCO®. 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$92.53
- AMMCO®Calibration Micrometer Checking Gauge for 8500 Brake Drum Micrometer (909582)Universal Calibration Micrometer Checking Gauge for 8500 Brake Drum Micrometer by AMMCO®. This tool is essential for setting the calibration on Ammco 8500 series drum micrometers. It may also be used to verify the calibration of other...Designed to help to get your job done rightManufactured utilizing the highest quality materials$146.29
- Cal-Van Tools®DOT 3, DOT 4, DOT 5.1 Brake Fluid Tester (66)Universal DOT 3, DOT 4, DOT 5.1 Brake Fluid Tester (66) by Cal-Van 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...Quick and easy method to accurately gauge the moisture content of all types of brake fluid(DOT 3, DOT 4, DOT 5.1)Ideal two-button use, one power button and the other to easily switch fluid types$55.63
- Cal-Van Tools®DOT 4 Brake Fluid Tester (62)Universal DOT 4 Brake Fluid Tester (62) by Cal-Van 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...Used to quickly and accurately gauge moisture content of DOT 4 brake fluidFluid quality is indicated on an easy to read LED gauge$36.63
- Fowler High Precision®0 to 16" Drum and Rotor Measuring Kit (72-010-888)Universal 0 to 16" Drum and Rotor Measuring Kit (72-010-888) 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...Measures disc brakes and up to 16" on brake drumsWhen measuring brake drums only, add 8" to measurement$57.22
- Fowler High Precision®0 to 2"(50 mm) Mark VI Electronic Indicator (54-530-175-0)Universal 0 to 2"(50 mm) Mark VI Electronic Indicator 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...Robust constructionWater and coolant resistant$1,362.23
- Fowler High Precision®0.3" to 1.3" Vernier Disc Brake Micrometer (72-234-202)Universal 0.3" to 1.3" Vernier Disc Brake Micrometer (72-234-202) 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...Sharp black graduations on satin chrome finishRatchet thimble$53.77
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.