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
- 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
- Lisle®9-piece Brake Lining Thickness Gauge Kit (83400)Universal 9-piece Brake Lining Thickness Gauge Kit by Lisle®. The 9 Piece Manual Brake Gauge Set Allows Brake Pad Wear to be Accurately and Consistently Measured without Guessing. Designed to check both straight on or at a 90° angle to...Expertly Crafted using premium-grade materialsUnsurpassed in functionality and reliability$16.56
- Lisle®Combination Brake Lining Thickness Gauge Set (81850)Universal Combination Brake Lining Thickness Gauge Set by Lisle®. The 9 Piece Manual Brake Gauge Set Allows Brake Pad Wear to be Accurately and Consistently Measured without Guessing. Designed to check both straight on or at a 90°...Expertly Crafted using premium-grade materialsUnsurpassed in functionality and reliability$15.24
- OTC®Brake Pad Gauge (6596)Universal Brake Pad Gauge by OTC®. SPEED UP your inspection process. The 6596 Brake Pad Gauge allows for a definitive measurement of brake pads to determine remaining life. Unique design allows for measurement on the vehicle without the...Designed to help to get your job done rightManufactured utilizing the highest quality materials$33.80
- OTC®Brake Pressure Test Set (7488A)Universal Brake Pressure Test Set by OTC®. Kit contains a complete set of fittings and gauges for pressure testing ABS and conventional brake systems. This product is made of high-quality materials to serve you for years to come....Designed to help to get your job done rightManufactured utilizing the highest quality materials$935.02
- OTC®DOT 3 Brake Fluid Tester (4598-DOT3)Universal DOT 3 Brake Fluid Tester 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 deliver great...LED lights to show moisture percentageAutomotically shuts off after 12 Seconds$45.55
- OTC®DOT 4 Brake Fluid Tester (4598-DOT4)Universal DOT 4 Brake Fluid Tester 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 deliver great...Brake Fluid Tester for DOT 4Determines quality of brake fluid$47.20
- Phoenix Systems®BrakeStrip™ Brake Fluid Test Set (3006-B)Universal BrakeStrip™ Brake Fluid Test Set by Phoenix Systems®. This specialty kit features BrakeStrip which is a 60-2nd test that identifies serious brake system problems before they occur thereby ensuring your safety. BrakeStrip...Provides Scientific Proof of When To Change Brake Fluid100 copper corrosion test strips$74.99
- Roadmaster®Even Brake Motor Home Monitor (9410)Universal Even Brake Motor Home Monitor by Roadmaster®. 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...High quality at an affordable priceExpertly made from premium materials$231.36
- 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$15.92
- Performance Tool®0 to 100 psi Dial Fuel Injection Pressure Tester (W80595)0 to 100 psi Dial Fuel Injection Pressure Tester (W80595) 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...Quickly and accurately diagnose drivability problems relating to the fuel injection systemIdentify low pressure, faulty pressure regulator, leaking injectors, leaks or clogged fuel filters$24.07
- Performance Tool®0 to 100 psi Master Fuel Injection Test Kit (W89726)0 to 100 psi Master Fuel Injection Test Kit (W89726) 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...Quickly and accurately diagnose fuel injection problemsAdapters for most foreign and domestic fuel systems$136.09
- Performance Tool®0 to 1000 psi Analog Diesel Compression Tester Kit (W89735)Universal 0 to 1000 psi Analog Diesel Compression Tester Kit (W89735) 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...Diesel compression Tester set includes all the necessary components to test diesel compression on most diesel trucks, cars and tractorsConstructed of durable carbon steel with a chrome plated gauge for accurate measurements in harsh environments$123.80
- Performance Tool®0 to 1000 psi Analog Diesel Compression Tester Kit (W89731)Universal 0 to 1000 psi Analog Diesel Compression Tester Kit (W89731) 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...Tests compression through both glow plug and injector holesOnly the best build quality$49.04
- Performance Tool®0 to 300 psi Analog Compression Tester (W80580)Universal 0 to 300 psi Analog Compression Tester 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, this product...Measure pressure in the combustion chamber as the piston comes up on a compression strokeHand held tester to take accurate compression readings quickly and easily$17.77
- Performance Tool®0 to 300 psi Analog Deluxe Compression Tester Kit (W80584)Universal 0 to 300 psi Analog Deluxe Compression Tester Kit 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...Deluxe compression tester for gas engines5 threaded adapters to cover most gas engines$33.50
- Performance Tool®0 to 300 psi Analog Flex Drive Compression Tester (W80579)Universal 0 to 300 psi Analog Flex Drive Compression Tester 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, this...Designed to help to get your job done rightManufactured utilizing the highest quality materials$19.01
- Performance Tool®1" to 1-1/16" Oil Pressure Sensor Socket (W80590)1" to 1-1/16" Oil Pressure Sensor Socket (W80590) 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$8.84
- 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$5.70
- Performance Tool®1-3/16" Oil Pressure Sensor Socket (W80591)1-3/16" Oil Pressure Sensor Socket (W80591) 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 operation...Manufactured for your oil system maintenanceBuilt to enhance your productivity$10.41
- Performance Tool®10-piece Electronic Fuel Injection Noid and IAC Light Set (W89501)10-piece Electronic Fuel Injection Noid and IAC Light Set (W89501) by Performance Tool®. Tests electronic fuel injection systems on GM TBI, Bosch PFI, Ford TBI, GM PFI, Geo TBI, GM SCPI, Bosch 2 and GM MULTEC2 equipped vehicles. This...Fuel Injection System with square 4 pin connectorsDesigned for your fuel system maintenance$31.79
- Performance Tool®12 V Battery Alternator Tester (W2989)Universal 12 V Battery Alternator Tester by Performance Tool®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs,...Easy to use battery / alternator testerPlug in to the 12V cigarette lighter in your car, the LED indicators will show you the status of your battery and alternator$11.25
- Performance Tool®12 V Digital Battery Analyzer (W2998)Universal 12 V Digital Battery Analyzer by Performance Tool®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs,...Portable, fast, and very simple to use battery starting and charging system analyzerDigital display indicates the condition of your battery and charging system$35.17
- Performance Tool®12 V LED Battery Tester (W2980)Universal 12 V LED Battery Tester by Performance Tool®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs,...Easy to read L.E.D. lightsDetermines battery state of charge and level of alternator output$9.11
- Performance Tool®24 Pieces Alligator Clips (W5209)Universal 24 Pieces Alligator Clips by Performance Tool®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs,...Make your own low-voltage jumper leadsRepair broken leads on test equipment and chargers$9.50
- Performance Tool®4-piece Compression Tester Spark Plug Adapters (W80577)Universal 4-piece Compression Tester Spark Plug Adapters 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...Snowmobiles, motorcycles, outboards, lawn equipment and much moreFits compression tester W80579 and others with a 14mm x 1.25 male thread$16.43
- Performance Tool®6 V/12 V 100 A Battery Load Tester (W2988)Universal 6 V/12 V 100 A Battery Load Tester by Performance Tool®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance...Accurately test the condition of your battery and charging systemsPerforms both a voltage test and 15-second battery-load test. 100-amp capacity$29.13
- Performance Tool®6 V/12 V/24 V Computer Safe Circuit Tester (W2991)Universal 6 V/12 V/24 V Computer Safe Circuit Tester by Performance Tool®. Gives the professional the ability to test fuel injectors, solenoids, tach reference signals Test the output on MAF, Cam, Crank, VSR sensors and much more. This...Computer safe, drawing less than 7 milliampsQuickly tests high and low voltages on all vehicle circuits, including computerized engine and body controls$14.37
- Performance Tool®6 V/12 V/24 V Dial Battery Tester (W1657C)Universal 6 V/12 V/24 V Dial Battery Tester 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...Quickly tests 6V, 12V and 24V batteriesDial indicator style$5.44
- Performance Tool®6-piece Electronic Fuel Injection Noid Light Set (W89500)6-piece Electronic Fuel Injection Noid Light Set (W89500) by Performance Tool®. Quickly and easily tests electronic fuel injection systems on: GM TBI, Bosch PFI, Ford TBI, GM PFI, Geo TBI and GM SCPI equipped vehicles. This product is...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$15.53
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.