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
- Performance Tool®Computer Memory Keeper (W89203)Universal Computer Memory Keeper by Performance Tool®. 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...For maintaining voltage continuity to engine computer, clock, and radio memory when vehicle battery is disconnectedRetains radio presets, ECM codes, and learned procedures up to four hours$6.78
- Performance Tool®Deluxe Antifreeze Tester (W1656C)Universal Deluxe Antifreeze Tester by Performance Tool®. 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...Easy to read scale & pointerFreezing to boiling points for anti-freeze, calibrated in °C and °F$5.16
- 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®Digital Laser Tachometer (W89719)Universal Digital Laser Tachometer 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...Use to accurately measure the RPM without touching the object, displays it on a LCD screen.Measures the rotational speed with a visible red LED beam.$20.62
- 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$11.80
- 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$4.48
- Performance Tool®Leakdown Test Kit (W89729)Universal Leakdown Test Kit by Performance Tool®. Keep your pride and joy running in tip-top shape with this top-grade automotive product. With it, you can easily and reliably check your vehicle for leaks to ensure its dependable and...Quickly diagnoses internal engine problems like bad rings, valves and leaking head gasketsLeak-down tests are more accurate than standard compression tests for engine diagnostics$48.47
- Performance Tool®Multifunction Refractometer (W80158)Universal Multifunction Refractometer by Performance Tool®. 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...Refractometers measure refraction index to calculate the composition of various materials.Measurements are on the Brix scale in varying ranges depending on what's tested$52.23
- Performance Tool®Pocket Antifreeze Tester (W1655C)Universal Pocket Antifreeze Tester by Performance Tool®. 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...Easy to read scale & pointerFreezing to boiling points for anti-freeze, calibrated in °C and °F$2.53
- Performance Tool®Pro Glass Body Antifreeze Tester (W1654C)Universal Pro Glass Body Antifreeze Tester by Performance Tool®. 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...Precision calibratedColor coded indicator float$4.37
- Performance Tool®Professional DEF Tester (W16500)Universal Professional DEF Tester by Performance Tool®. 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...Professional disc type DEF, Diesel Exhaust Fluid testerFor most diesel power cars, light duty and semi-trucks from 2010 to current$11.81
- Performance Tool®Self-Powered Timing Light (W80578)Universal Self-Powered Timing Light 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...Detachable inductive pick up can be easily hooked upDesigned for all gas engines, outdoor power equipment, motorcycle, snow mobile, mowers and tractors$45.88
- 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$7.04
- ATD®0 to 100 psi Fuel Injection Pressure Tester (5567)0 to 100 psi Fuel Injection Pressure Tester (5567) by ATD®. Basic fuel injection tester includes large and small Schrader adapters, M6-1.00 O-ring adapter and tee manifold. Includes everything needed to test the systems.Designed for your fuel system maintenanceMade from quality materials to survive the test of time$60.74
- ATD®12 V 500 A Variable Carbon Pile Battery Load Tester (5489)Universal 12 V 500 A Variable Carbon Pile Battery Load Tester by ATD®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance...Tests 12V batteries, alternators and startersTests batteries to 1000 CCA$141.95
- ATD®Electronic A/C Leak Detector (3697)Universal Electronic A/C Leak Detector by ATD®. An accurate and reliable solution to electronic leak detection. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes...(3) levels of sensitivity(5) levels of detection$222.38
- ATD®Pocket Antifreeze and Coolant Tester with Pouch (1101)Universal Pocket Antifreeze and Coolant Tester with Pouch by ATD®. 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...Easily checks condition of antifreeze and coolantWorks for all ethylene glycol coolants, including GM Dex-Cool™$5.02
- AllStar Performance®0 to 300 psi Analog Compression Tester (ALL96520)Universal 0 to 300 psi Analog Compression Tester by AllStar Performance®. Tester checks cylinder compression from 0 to 300 psi and features an air-hold valve to reset gauge. One piece stepped brass end fitting with o-rings fits 14mm and...Precise manufacturing and high-grade materialsExpertly Crafted from the highest grade materials$24.99
- Associated Equipment®0 to 12 V 125 A Alternator or Battery Tester (6031)Universal 0 to 12 V 125 A Alternator or Battery Tester by Associated Equipment®. Tests for defective alternators diodes including GM trio test, and performs complete battery test as well. 125 amp load checks state of charge on...Powerful PerformanceTests for defective alternatordiodes including GM trio test$171.09
- Associated Equipment®0 to 16 V 125 A Durable Handheld Battery Tester (6029)Universal 0 to 16 V 125 A Durable Handheld Battery Tester by Associated Equipment®. Tests battery state of charge, cranking ability, charging system output Checks for excessive stater motor draw. This product is made of high-quality...Powerful PerformanceTest 6 and 12 volt batteries alternators and starters$130.68
- Associated Equipment®0 to 16 V 135 A Handheld Battery Load Tester (6026)Universal 0 to 16 V 135 A Handheld Battery Load Tester by Associated Equipment®. This test evaluates the battery's ability to crank an engine. The tester draws current from the battery while measuring its voltage level. The voltage...Great value priced battery testerCables extend out from bottom of handle for safe and convenientuse$78.83
- Associated Equipment®7 V to 19 V 125 A Digital Battery Load Tester (6033)Universal 7 V to 19 V 125 A Digital Battery Load Tester by Associated Equipment®. Digital 125 Amp load tester that computes the CCA of the battery. The heavy load enables the 6033 to detect bad batteries that are sometimes missed by the...Kelvin connected digital meter displays the following values:Current Battery Voltage$176.32
- Autel®1 Year Software Update Total Care Program Card for TS608 Code Reader (TS608-1YRUPDATE)Universal 1 Year Software Update Total Care Program Card for TS608 Code Reader by Autel®. Designed with maximum accuracy and precision in mind, this tool is the ultimate solution that will help make automotive diagnostic scanning fast...Assists in the vehicle’s diagnostics to help maintain its well-beingBuilt to make the process fast, easy, and reliable$255.00
- Autel®MaxiBAS™ 6 V/12 V/24 V Battery Tester Accessory Kit for Autel's MaxiBAS BT608 and BT609 Battery and Electrical System Analysis Tool (BTAK)Universal MaxiBAS™ 6 V/12 V/24 V Battery Tester Accessory Kit for Autel's MaxiBAS BT608 and BT609 Battery and Electrical System Analysis Tool by Autel®. Autel's Battery Tester Accessory Kit (BTAK) includes the DM100 Digital Multimeter...Digital Multimeter and Current Clamp KitCompatible with Autel's MaxiBAS BT608 and BT609 Battery Analysis Tools$245.00
- Autel®MaxiBAS™ 6 V/12 V/24 V Touchscreen Battery and Electrical System Analysis Tool (BT608)Universal MaxiBAS™ 6 V/12 V/24 V Touchscreen Battery and Electrical System Analysis Tool by Autel®. The BT608 is a touchscreen Battery & Electrical System analyzer that applies Adaptive Conductance, an advanced battery analysis method...Support in-vehicle and out-of-vehicle testing of passenger vehicle batteriesTest 6- and 12-volt batteries: 100 - 3000 CCA$595.00
- Autel®MaxiSYS MS909 Diagnostic Tablet with MaxiFlash VCI/J2534 (MS909ADAS)Universal MaxiSYS MS909 Diagnostic Tablet with MaxiFlash VCI/J2534 by Autel®. The MaxiSYS MS909 is a 9.7-inch touchscreen Android-based advanced diagnostic tablet powered by an Octa-core processor (2.2GHz Quad + 1.8GHz Quad), 128GB...Autel updates provide latest OE level coverage for more than 80 US Domestic, Asian and European vehicles, including supercarExceptional OE-Level functionality from comprehensive OBDII diagnostics & services to advanced ECU coding and programming$4,551.00
- Autel®MaxiSYS™ 1 Year Software Update Total Care Program Card for MS908 Code Reader (MS908-1YR)Universal MaxiSYS™ 1 Year Software Update Total Care Program Card for MS908 Code Reader (MS908-1YR) by Autel®. Arm yourself up with innovative automotive tools from Autel. If you're looking for a simple solution for complex problems,...Assists in the vehicle’s diagnostics to help maintain its well-beingBuilt to make the process fast, easy, and reliable$850.00
- Autel®MaxiSYS™ 1 Year Software Update Total Care Program Card for MS908P Code Reader (MS908P-1YR)Universal MaxiSYS™ 1 Year Software Update Total Care Program Card for MS908P Code Reader (MS908P-1YR) by Autel®. Arm yourself up with innovative automotive tools from Autel. If you're looking for a simple solution for complex...Assists in the vehicle’s diagnostics to help maintain its well-beingBuilt to make the process fast, easy, and reliable$1,095.00
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.