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
- OTC®Electronic DEF Refractometer (3095)Universal Electronic DEF Refractometer by OTC®. The OTC 3095 offers quick, easy, and accurate measurement of UREA concentration in DEF or AdBlue solution. Ensure the proper operation of class 7-8 trucks utilizing the SCR system with...Digital displayDisplays % UREA$669.83
- Electronic Specialties®10' Self Powered Inductive Clamp Timing Light (130-10)Universal 10' Self Powered Inductive Clamp Timing Light (130-10) by Electronic Specialties®. The original battery powered timing light, built with quality to last. There is no need to connect to a 12 volt battery for power. This unit is...For 2 or 4 cycle engines, all ignition systemsProtective sleeve withstands high temps (1200F)$129.55
- Electronic Specialties®20' Self-Powered Inductive Clamp for 130 Self-Powered Inductive Clamp Timing Light (130-20)Universal 20' Self-Powered Inductive Clamp for 130 Self-Powered Inductive Clamp Timing Light by Electronic Specialties®. The original battery powered timing light, built with quality to last. There is no need to connect to a 12 volt...For 2 or 4 cycle engines, all ignition systemsProtective sleeve withstands high temps (1200F)$137.50
- Electronic Specialties®4' Self Powered Inductive Clamp Timing Light (130)Universal 4' Self Powered Inductive Clamp Timing Light (130) by Electronic Specialties®. The original battery powered timing light, built with quality to last. There is no need to connect to a 12 volt battery for power. This unit is...For 2 or 4 cycle engines, all ignition systemsProtective sleeve withstands high temps (1200F)$87.27
- Electronic Specialties®Advance Inductive Pick-Up Timing Light (112)Universal Advance Inductive Pick-Up Timing Light by Electronic Specialties®. This chrome timing light is built for heavy duty use. The #112 has the timing advance function required for precise tuning and diagnostic work. It's subsantial...Rugged chrome plated metal caseLinear Xenon flash tube and focused fresnel lens combines for concentrated brilliant light$98.69
- Electronic Specialties®Pro Laser Photo/Contact Tachometer (333)Pro Laser Photo/Contact Tachometer by Electronic Specialties®. Dual function Laser Photo & Contact Tachometer. Photo RPM measurements are taken via the laser photo method. Contact functions - rotation, distance and frequency...Professional Quality - Shock Absorbing Double Molded HousingContinuous Backlit Display$112.73
- Electronic Specialties®Test Leads with Alligator Clip (624)Universal Test Leads with Alligator Clip by Electronic Specialties®. 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$14.27
- Actron®Advanced Timing Light (CP7528)Universal Advanced Timing Light (CP7528) by Actron®. Allows accurate adjustment of base and advance timing reading. Adjustable knob measures centrifugal, vacuum, and computer advance. If you’re looking for a reliable solution to...Adjustable knob measures centrifugal, vacuum and computer advanceConventional, electronic, computer controlled ignition systems$69.65
- Actron®Digital Timing Light (CP7529)Universal Digital Timing Light (CP7529) by Actron®. Advanced features with a bright LED screen and mode indicator lights. If you’re looking for a reliable solution to complete your project, this 1st-grade product is right up your...Conventional, electronic, computer controlled ignition systemsDIS and 2 cycle systems$80.77
- Actron®Inductive Timing Light (CP7527)Universal Inductive Timing Light (CP7527) by Actron®. The most popular timing light in the marketplace. Designed for standard base timing with on/off touch control. If you’re looking for a reliable solution to complete your project,...Conventional, electronic, computer controlled ignition systemsDIS and 2 cycle systems$50.92
- Baldwin Filters®FleetStrip™ Coolant Test Strip Kit with 4 Test Strips (CTK5029-4)Universal FleetStrip™ Coolant Test Strip Kit with 4 Test Strips (CTK5029-4) by Baldwin Filters®. Liquid supplemental coolant additives can be used instead of coolant filters to replenish the cooling system when depleted. Periodic...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$12.93
- CTA®Antifreeze and Coolant Tester (A195)Universal Antifreeze and Coolant Tester by CTA®. 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 keep...Tests all ethylene glycol solutions with radiator hot or coldEasy-to-read dual scale for testing freezing point or boiling point of coolant$10.14
- EZRed®Refractometer (B108)Universal Refractometer by EZRed®. 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 keep your vehicle...Adjustable lens focusChecks state of battery charge$66.09
- Equus®Pro Timing Light Pickup (5596)Universal Pro Timing Light Pickup by Equus®. Inductive pickup wire is constructed with durable coaxial cable. The inductive pickup accommodates up to 10mm plug wires. This product is made of high-quality materials to serve you for years...Manufactured using innovative technologiesPrecisely engineered to ensure ultimate efficiency$34.04
- Flaming River®48' Self-Powered Single-Wire Timing Light (FR1001)Universal 48' Self-Powered Single-Wire Timing Light (FR1001) by Flaming River®. This self-powered timing light is designed to work without an auxiliary power source, which makes it ideal for use with magnetos, rear battery mount race...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
- General Technologies®SmarTach+ Digital Tachometer And Engine Analyzer (TA100)Universal SmarTach+ Digital Tachometer And Engine Analyzer by General Technologies®. Rugged construction with protective holster and flexible antenna. Wide measuring range: 200 to 19,999 RPM. Wide distance from the antenna to ignition...Measures spark plug wire voltage from 0 to 50000 VoltSpecial antenna sensor allows quick hook-up to spark plug and ignition coil wires$166.15
- HAZET®Refractometer (4810C)Universal Refractometer by HAZET®. 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 keep your vehicle...For testing the anti-freeze concentration in the cooling water, (also suitable for cooling fluids G12++ and G13)For testing the quality of AdBlue solution$169.47
- K-Tool International®Antifreeze Tester (KTI-70211)Universal Antifreeze Tester by K-Tool International®. Hydrometer immediately and accurately tests strength of all permanent solutions (ethylene glycol), with engine hot or cold, and includes temperature adjustment scale for accurate...Assists in preventing winter freeze up and summer boil-overTwo embedded scales show freeze point of radiator solution and boiling point of summer coolant$10.99
- Lunati®Cable with Pickup (LUN301517)Universal Cable with Pickup by Lunati®. Lunati offers two types of Self-Powered Timing Lights for 2 or 4 cycle applications that are battery operated. Standard model is usable to about 5,000 RPM, while the Pro model can operate beyond...One-wire inductive lead designMagneto compatible$72.60
- Lunati®Pro Self Powered Timing Light (LUN301515)Universal Pro Self Powered Timing Light by Lunati®. Lunati offers two types of Self-Powered Timing Lights for 2 or 4 cycle applications that are battery operated. Standard model is usable to about 5,000 RPM, while the Pro model can...One-wire inductive lead designMagneto compatible$171.02
- Lunati®Replacement Xenon Flash Tube (LUN301516)Universal Replacement Xenon Flash Tube by Lunati®. Lunati offers two types of Self-Powered Timing Lights for 2 or 4 cycle applications that are battery operated. Standard model is usable to about 5,000 RPM, while the Pro model can...One-wire inductive lead designMagneto compatible$32.55
- MSD®Replacement Cable (89911)Universal Replacement Cable by MSD®. 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$99.95
- MSD®Self Powered Timing Light (8991)Universal Self Powered Timing Light by MSD®. An accurate timing light is extremely important to the performance of your engine. MSD's new Self-Powered Timing Light is a tool every performance tuner should have. A great feature of the...Battery poweredUses 6 - AAA Batteries$314.95
- MSD®Timing Pro™ Inductive Timing Light (8992)Universal Timing Pro™ Inductive Timing Light by MSD®. This MSD Timing Light is perfect for working in a garage, outside in the sun, or anywhere else you need to check your timing. The light provides stable, reliable signals from 0 to...Detachable leadsSecure pick-up$239.95
- Make Waves Instrument®Digital Timing Light (7165)Universal Digital Timing Light by Make Waves Instrument®. 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...Digital Display and Color Coded LEDs Offer a Quick, Accurate, and Easy way to Measure VoltageIdeal for Checking Electrical Wiring, Fuses, Batteries, Sensors, Switches, and Motors$30.38
- Mueller-Kueps®DEF/Ad-Blue 4-in-1 Refractometer (727 090)Universal DEF/Ad-Blue 4-in-1 Refractometer by Mueller-Kueps®. One tool tests it ALL! Test for proper concentration levels of Diesel Exhaust Fluid (DEF), commonly referred to as AdBlue in Europe. This unit will also test radiator...Ad-Blue fluid scaleTest also radiator coolant, windshield washer fluid, and battery acid$143.10
- 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
- Thexton®Cold-Chek™ EG Antifreeze Tester with Safety Shield (102)Universal Cold-Chek™ EG Antifreeze Tester with Safety Shield (102) by Thexton®. Popular tester is same as No. 101, but with a rugged safety shield of ABS plastic. Also used to test Dex-Cool®. Vinyl case imprinted with protection scale.With a rugged safety shield of ABS plasticAlso used to test Dex-Cool$8.77
- Thexton®Cold-Chek™ PG Antifreeze Tester (100)Universal Cold-Chek™ PG Antifreeze Tester by Thexton®. For testing propylene glycol-based antifreeze in automotive radiators. Accurate to -50° F. Ball Float to show freeze protection. Tests coolant hot or cold. Pocket protector.For testing propylene glycol-based antifreeze in automotive radiators and freshwater system in RV's and boatsAccurate to -50° F$7.44
- Thexton®Professional PG Antifreeze Tester (107)Universal Professional PG Antifreeze Tester by Thexton®. Professional disc-type 16-1/4" tester is used to test propylene glycol-based antifreeze in automotive radiators. Number of floating discs measures level of protection. Temperature...Disc-Type anit-freeze testerLarge professional sized tester (16-1/4” long) is accurate at all temperatures. Tests coolant hot or cold. Easy to read discs are magnified by convex designe of the clear SAN plastic barrel. Celsius and Fahrenheit scales.$15.43
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.