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
- FJC®16 oz. R-12, R-134a A/C Fluorescent Leak Detection Dye (4918)Universal 16 oz. R-12, R-134a A/C Fluorescent Leak Detection Dye (4918) by FJC®. FJC ultraviolet fluorescent universal dyes provide exceptional leak detection for R-12 and R-134a automotive air conditioning systems. FJC dyes work with...Universal A/C Fluorescent Leak Detection Dye R-12 & R-134a SystemsCan be detected using any UV or Blue Light$57.03
- FJC®4 oz. R-12, R-134a A/C Fluorescent Leak Detection Dye (4916)Universal 4 oz. R-12, R-134a A/C Fluorescent Leak Detection Dye (4916) by FJC®. FJC ultraviolet fluorescent universal dyes provide exceptional leak detection for R-12 and R-134a automotive air conditioning systems. FJC dyes work with...Universal A/C Fluorescent Leak Detection Dye R-12 & R-134a SystemsCan be detected using any UV or Blue Light$22.63
- FJC®8 oz. R-12, R-134a A/C Fluorescent Leak Detection Dye (4917)Universal 8 oz. R-12, R-134a A/C Fluorescent Leak Detection Dye (4917) by FJC®. FJC ultraviolet fluorescent universal dyes provide exceptional leak detection for R-12 and R-134a automotive air conditioning systems. FJC dyes work with...Universal A/C Fluorescent Leak Detection Dye R-12 & R-134a SystemsCan be detected using any UV or Blue Light$29.63
- FJC®8 oz. Universal Dye (4924)Universal 8 oz. Universal Dye (4924) by FJC®. Universal dye specially formulated to pinpoint car oil leaks, transmission leaks, fuel leaks, and power steering fluid leaks. Keep your pride and joy running in tip-top shape with this...Can be detected using any UV or Blue LightPOE Ester based$32.99
- FJC®9-piece R-1234yf Fluorescent UV Leak Detection Kit (4972YF)Universal 9-piece R-1234yf Fluorescent UV Leak Detection Kit by FJC®. FJC’s Leak Detection/Dye kits contain everything necessary to perform leak detection on all air conditioning systems, engine oil systems, fuel systems, or...Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$91.47
- FJC®Dye Charge R-134a Fluorescent Dye (4921)Universal Dye Charge R-134a Fluorescent Dye by FJC®. FJC’s signature blends of R-134a refrigerant with additives for the specific needs of your system. Additives may include red dye, UV dye, lubricant, stop leak, Extreme Cold, etc....R-134a pressurized single use canCan be detected using any UV or Blue Light$10.43
- FJC®Electronic Refrigerants Leak Detector (5110)Universal Electronic Refrigerants Leak Detector by FJC®. FJC’s electronic leak detectors employ simple controls for easy operation. All are certified to SAE J1627, SAAE J1627, and EN14624 approval. This product is made of high-quality...Detects all CFC, HFC, HCFC and HFO refrigerants, including R-134a and R-1234yfAutomatic calibration$320.10
- FJC®Fluorescent UV Leak Detection Kit with Work Light (4974)Universal Fluorescent UV Leak Detection Kit with Work Light by FJC®. FJC’s Leak Detection/Dye kits contain everything necessary to perform leak detection on all air conditioning systems, engine oil systems, fuel systems, or...Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$130.83
- FJC®Radiator Coolant Dye, 1 oz. x 4 Bottles (4928D)Universal Radiator Coolant Dye, 1 oz. x 4 Bottles (4928D) by FJC®. Radiator Coolant Dyes by FJC are for use with Ultraviolet leak detection kits to aid in finding coolant leaks. These dyes are made of high-quality materials with...Pinpoint leaks in cooling systems, including radiators, hoses, fittings, water pumps and head gasketsUse 1 oz per 4 gallons coolant$6.92
- FJC®Radiator Coolant Dye, 1 oz. x 4 Bottles (4928)Universal Radiator Coolant Dye, 1 oz. x 4 Bottles (4928) by FJC®. Radiator Coolant Dyes by FJC are for use with Ultraviolet leak detection kits to aid in finding coolant leaks. These dyes are made of high-quality materials with...Pinpoint leaks in cooling systems, including radiators, hoses, fittings, water pumps and head gasketsUse 1 oz per 4 gallons coolant$6.79
- FJC®Replacement A/C UV Dye Refill (4903)Universal Replacement A/C UV Dye Refill by FJC®. This is a replacement cartridge for the 4901 A/C UV Dye Injector. Keep your pride and joy running in tip-top shape with this top-grade automotive product. With it, you can easily and...Replacement A/C UV dye cartridge for FJC 4901 dye injector kit10 applications per cartridge$18.63
- FJC®Slim Design UV LED Leak Detection Light (4967)Universal Slim Design UV LED Leak Detection Light by FJC®. Air Conditioning Dyes mix with the oil and refrigerant and circulate throughout the A/C system. At the area of a leak, a small amount of dye will escape and stain the area with...Compact, high intensity LEDWrist strap included$30.59
- FJC®UV LED Leak Detection Light (4963)Universal UV LED Leak Detection Light by FJC®. Air Conditioning Dyes mix with the oil and refrigerant and circulate throughout the A/C system. At the area of a leak, a small amount of dye will escape and stain the area with dye,...Fluoresces all UV dyesProvides hours of use on a single charge$104.01
- Four Seasons®GloStick 0.06 oz. Mineral Fluorescent Dye (59044)Universal GloStick 0.06 oz. Mineral Fluorescent Dye by Four Seasons®. 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...Superior grade materials for unbeatable safety and comfortExpertly crafted utilizing advanced technologies$10.54
- Four Seasons®Leak Detection Ultraviolet Glasses (59057)Universal Leak Detection Ultraviolet Glasses by Four Seasons®. 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...Ultraviolet absorbing safety to detect leaks in systemGlow enhancing$32.93
- Lang Tools®100 psi Dual Gauge Cylinder Leak Down Tester (CLT-2PB)Universal 100 psi Dual Gauge Cylinder Leak Down Tester by Lang Tools®. Measures the ability of an engine cylinder to hold compressed air using shop air pressure; supplements a compression tester. Measures the ability of an engine...Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$97.91
- Lisle®10-piece HD Turbo Air System Test Kit with Smoke Adapter (69930)Universal 10-piece HD Turbo Air System Test Kit with Smoke Adapter by Lisle®. Includes T-Adapter for Connecting Smoke Machines to Help Locate Air Leaks in the Components. Plugs the output side of the turbo and the intake inlet. Air and...Unhook turbo out line at turbo or air to air connectionUnhook hose at air to air outlet or intake$221.92
- Lisle®14-piece Turbo Air System Test Kit with Smoke Adapter (69910)Universal 14-piece Turbo Air System Test Kit with Smoke Adapter by Lisle®. Includes T-Adapter for Connecting Smoke Machines to Help Locate Air Leaks in the Components. Plugs the output side of the turbo and the intake inlet. Air and...Unhook turbo out line at turbo or air to air connectionUnhook hose at air to air outlet or intake$241.10
- Lisle®16 oz. Combustion Leak Indicating Fluid (75630)Universal 16 oz. Combustion Leak Indicating Fluid by Lisle®. Use this fluid with block style combustion testers. Once the color changes diagnosis of the engind block can be made.. Keep your pride and joy running in tip-top shape with...Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$8.64
- Lisle®16 oz. Diesel Combustion Leak Indicating Fluid (75730)Universal 16 oz. Diesel Combustion Leak Indicating Fluid by Lisle®. Use the diesel leak detector fluid with the Lisle 75500 Combustion Leak Detector. Indicating fluid changes from red to yellow when exposed to diesel combustion gases in...Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$8.79
- Lisle®Combustion Leak Detector Kit (75500)Universal Combustion Leak Detector Kit by Lisle®. Checks for combustion leaks caused by bad head gaskets, cracked blocks, and cracked or warped heads. Fluid changes from blue to yellow when exposed to combustion gases from the radiator....Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$32.16
- Mastercool®12V 50 W Replacement UV Bulb (53312-B)Universal 12V 50 W Replacement UV Bulb by Mastercool®. 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...Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$20.47
- Mastercool®Combustion Gas Leak Tester Kit (43707)Universal Combustion Gas Leak Tester Kit (43707) by Mastercool®. Fast, economical and accurate method to test for combustion gas leaks from head gasket, cylinder head & engine block. Keep your pride and joy running in tip-top shape with...Dual chamber for improved accuracy and to reduce the risk of coolant contaminating the testWorks on gasoline & diesel engines$71.94
- Mastercool®Combustion Gas Leak Tester Kit with Test Cap Adapter (43710)Universal Combustion Gas Leak Tester Kit with Test Cap Adapter (43710) by Mastercool®. Fast, economical and accurate method to test for combustion gas leaks from head gasket, cylinder head & engine block. Includes expansion tank adapter...Dual chamber for improved accuracy and to reduce the risk of coolant contaminating the testWorks on gasoline & diesel engines$88.36
- Mastercool®Concentrated UV Dye Cartridge (53810)Universal Concentrated UV Dye Cartridge by Mastercool®. 10 Applications. 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...Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$18.99
- Mastercool®Evap Diagnostic Smoke Machine (43060-EV)Universal Evap Diagnostic Smoke Machine by Mastercool®. For all evap, intake, exhaust, vacuum lines and vacuum components, passenger compartment window and sunroof, headlight/tail-light fixtures and much more. This unit provides the...Compact, heavy-duty design for years of reliable serviceMultiple options for smoke injection include built-in internal compressor, shop air and inert gases$660.84
- Mastercool®HD Truck Diagnostic Smoke Machine (43060-HD)Universal HD Truck Diagnostic Smoke Machine by Mastercool®. For all HD truck intakes, exhaust, vacuum lines and components, cabin air and water leaks and much more.. Keep your pride and joy running in tip-top shape with this top-grade...Compact, heavy-duty design for years of reliable serviceOperates on shop air or inert gas$1,065.10
- Mastercool®Intellasense III Combustible Gas Leak Detector (55975)Universal Intellasense III Combustible Gas Leak Detector by Mastercool®. At the heart of this leak detector is a new low power metal oxide gas sensor with superior performance properties such as lower current consumption and sensor...Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$210.49
- Mastercool®Mach IV Flexible UV Light (53515)Universal Mach IV Flexible UV Light by Mastercool®. 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...4 TRUE UV LEDS delivering a brilliant fluorescent glowFlexible Wand Gets into Tight Areas$51.16
- Mastercool®Mini UV Flashlight Kit (53513-UV)Universal Mini UV Flashlight Kit by Mastercool®. When dye has been added to the system, easily search for a bright green/yellow glow where the system is leaking with this high intensity LED illumination mini flashlight.High intensity LED bulb - UV illuminationAluminum body with anodized finish$32.41
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.