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
- Stant®Black Fuel Cap Testing Adapter (12410)Black Fuel Cap Testing Adapter (12410) by Stant®. 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...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$9.91
- Stant®Green Fuel Cap Testing Adapter (12406)Green Fuel Cap Testing Adapter (12406) by Stant®. 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...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$13.88
- Stant®Green Fuel Cap Testing Calibration Cap (12411)Universal Green Fuel Cap Testing Calibration Cap (12411) by Stant®. 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...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$70.22
- Stant®Light Blue Fuel Cap Testing Adapter (12421)Light Blue Fuel Cap Testing Adapter (12421) by Stant®. 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...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$18.82
- Stant®Tan Fuel Cap Testing Adapter (12422)Tan Fuel Cap Testing Adapter (12422) by Stant®. 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...Designed for your fuel system maintenanceMade from quality materials to survive the test of time$14.92
- Steelman®5.5 mm x 39.6" Recording Wi-Fi Videoscope Inspection System (78823)5.5 mm x 39.6" Recording Wi-Fi Videoscope Inspection System by Steelman®. The STEELMAN PRO 78823 SVS-1021 Wi-Fi Videoscope is a portable, hand-held, multifunctional inspection camera featuring an ultra-compact 5.5 mm diameter borescope...Self-generated wi-fi - videoscope generates and broadcasts on its own wi-fi signal that can be viewed on or recorded to your smart deviceInspect tight places with semi-rigid cable you can access all but the narrowest of spots to find leaks, squeaks, and lost objects$303.39
- Steelman®Replacement 5.5 mm x 108" Camera Probe for Steelman pro 78823 Wi-Fi Videoscopes (79037)Replacement 5.5 mm x 108" Camera Probe for Steelman pro 78823 Wi-Fi Videoscopes (79037) by Steelman®. The STEELMAN PRO 79037 Camera Probe gets you into confined spaces with high resolution 480p video when used in conjunction with the...Ultra compact camera headHigh definition camera can capture 480p photos and video$183.61
- Steelman®Replacement 5.5 mm x 72" Camera Probe for Steelman pro 78823 Wi-Fi Videoscopes (79036)Replacement 5.5 mm x 72" Camera Probe for Steelman pro 78823 Wi-Fi Videoscopes (79036) by Steelman®. The STEELMAN PRO 79036 Camera Probe gets you into confined spaces with high resolution 480p video when used in conjunction with the...Ultra compact camera headHigh definition camera can capture 480p photos and video$163.13
- Steelman®Replacement 8.5 mm x 192" Camera Probe for Steelman pro 78823 Wi-Fi Videoscopes (79038)Replacement 8.5 mm x 192" Camera Probe for Steelman pro 78823 Wi-Fi Videoscopes (79038) by Steelman®. The STEELMAN PRO 79038 Camera Probe gets you into confined spaces with high resolution 480p video when used in conjunction with the...Ultra compact camera headHigh definition camera can capture 480p photos and video$195.59
- Steelman®Slim-Lite Flashlight with UV Mode (78952)Universal Slim-Lite Flashlight with UV Mode by Steelman®. With the STEELMAN PRO 78952 Slim-Lite Rechargeable Work and Inspection Light with UV Mode, you can gain access to extremely tight spaces that once had to be left in the dark....COMPACT DESIGN - Ultra-slim work light design is only 1/4-inch thick to fit into tight spaces other flashlights cannotDURABLE CASING - Anodized aluminum casing and high-impact polycarbonate LED lens cover are weather resistant$69.31
- Steelman®Videoscope Tips for 78823, 79036, 79037 Models (79039)Videoscope Tips for 78823, 79036, 79037 Models by Steelman®. Pack of 3 handy accessories for the STEELMAN PRO 78823 Wi-Fi Video Scope bring added versatility and convenience to your inspection endoscope. Threaded bodies on the tips...Compatible video scope - 3-pack of tip accessories with storage pouch for the 5.5 mm diameter head used by the steelman pro wi-fi video scope part number 78823Threaded tip bodies securely screw onto camera head preventing accidental loss in a critical area$25.55
- Stevens®10 mm Adapter (334Z)Universal 10 mm Adapter (334Z) by Stevens®. 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...Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$14.37
- Stevens®8 mm Adapter (334Y)Universal 8 mm Adapter (334Y) by Stevens®. 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...Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$14.37
- Stevens®Gearcase Pressure Leakage Tester (S34)Universal Gearcase Pressure Leakage Tester by Stevens®. Pressure test outboard and sterndrive gearcases with the S-34. Tests should be made during lube operations and following gearcase repairs. Simply pressurize and observe gauge for...Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$164.86
- Stevens®Gearcase Vacuum Leakage Tester (V34)Universal Gearcase Vacuum Leakage Tester by Stevens®. Similar to the S-34 in appearance and operation, the V-34 tests for leakage in the opposite direction. Seals that hold pressure can still allow water to enter the gearcase. The V-34...Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$166.31
- Stevens®OMC Duoprop Adaptor for Gearcase Leakage Testers and Filler (33DP)Universal OMC Duoprop Adaptor for Gearcase Leakage Testers and Filler by Stevens®. What can be more fun and rewarding than boating on the open waters? This is an excellent solution for your boating needs. This product is great for use...Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$14.37
- Sunex®1-1/16" Oil Pressure Sensor Socket (28505)Universal 1-1/16" Oil Pressure Sensor Socket (28505) by Sunex®. All products are trusted for their design and engineering, and Sunex® will continue to equip customers with high quality tools at the best value thanks to rich heritage of...Developed using innovations to effectively serve the automotive aftermarketGuaranteed to provide the ultimate comfort and perform as hard as you do$21.63
- Sunex®27 mm Oil Pressure Sensor Socket (28503)Universal 27 mm Oil Pressure Sensor Socket (28503) by Sunex®. All products are trusted for their design and engineering, and Sunex® will continue to equip customers with high quality tools at the best value thanks to rich heritage of...Developed using innovations to effectively serve the automotive aftermarketGuaranteed to provide the ultimate comfort and perform as hard as you do$21.39
- Sunex®29 mm Oil Pressure Sensor Socket (28501)Universal 29 mm Oil Pressure Sensor Socket (28501) by Sunex®. All products are trusted for their design and engineering, and Sunex® will continue to equip customers with high quality tools at the best value thanks to rich heritage of...Developed using innovations to effectively serve the automotive aftermarketGuaranteed to provide the ultimate comfort and perform as hard as you do$22.19
- Symtech®Battery Pack (05011500)Universal Battery Pack by Symtech®. Made In USA!. 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 by Symtech® will last...Rigorous quality you can trustLong and dependable service$64.35
- Symtech®ISO Color Headlamp Alignmnet System (BCA4)Universal ISO Color Headlamp Alignmnet System by Symtech®. Revolutionary ISOColor technology aligns all types of headlamps with one inexpensive, portable, easy to use system. Adjust your vehicle’s headlights in no time flat and...Step by step headlamp alignment procedures located on optical headLaser floor slope measurement is accurate and easy to achieve$713.58
- TIF®Battery Charger for TIFZX-1 Leak Detector (TIFZX-3)Universal Battery Charger for TIFZX-1 Leak Detector by TIF®. Genuine Robinair replacement AC adapter/charger for Robinair's No. TIFZX Heated Pentode Refrigerant Detector features exact OE performance. 115 Volt, 60Hz. UL listed....Replacement AC adapter/chargerGenuine Robinair replacement component with exact OE performance$21.69
- TIF®Leak Detector Replacement Tips (TIF555)Universal Leak Detector Replacement Tips by TIF®. 3 Pieces. 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...Robinair Leak Detector replacement tipsKit includes 3 tips and 3 protectors$50.65
- TIF®Maintenance Kit for Halogen Leak Detector (TIFZX-14)Universal Maintenance Kit for Halogen Leak Detector by TIF®. 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...Robinair Refrigerant Detector Maintenance KitKit includes filter, o-ring, and tip$28.92
- Tectran®7-Way Plug Continuity Testers (5048)Universal 7-Way Plug Continuity Testers by Tectran®. 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...Built to offer superior performance for a long timeMade to bring exceptional durability and reliability$62.41
- Thexton®0 to 15 psi Pro Exhaust Back Pressure Set (481)Universal 0 to 15 psi Pro Exhaust Back Pressure Set by Thexton®. Take readings while road testing vehicle. Compare pressure ahead and behind suspected restriction, like a catalytic converter or muffler. Includes punch, 5/16"x1/2"...Designed to help to get your job done rightManufactured utilizing the highest quality materials$102.78
- Thexton®12 V Circuit Tester (852)Universal 12 V Circuit Tester by Thexton®. Portability-Can be used with most all 12 Volt power sources by utilizing the alligator clips for power connection.Also no need to purchase an expensive special additional battery source if user...This allows for more portability and freedom from long battery wiresApplies power and ground$86.82
- Thexton®12" Coil-On-Plug Spark Tester (458)12" Coil-On-Plug Spark Tester by Thexton®. 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 levels of...Designed to help to get your job done rightManufactured utilizing the highest quality materials$26.05
- Thexton®2'' Spark Tester Extension with used spark tester 862, 404 or 458 (863)Universal 2'' Spark Tester Extension with used spark tester 862, 404 or 458 by Thexton®. This aids for moving tester's spark window in a more desirable location for visibility. This product is made of high-quality materials to serve you...Designed to help to get your job done rightManufactured utilizing the highest quality materials$11.49
- Thexton®Cold-Chek™ EG Antifreeze Tester (101)Universal Cold-Chek™ EG Antifreeze Tester (101) by Thexton®. Original ball-type, specific gravity tester. Accurate to -34° F., indicating 50/50 mix. Also used to test Dex-Cool®. Special "6th ball" shows overprotection. Extra-long...Original ball-type, specific gravity testerAccurate to -34° F, indicating 50/50 mix$7.09
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.