1956 GMC 370 Diagnostic & Testing Tools
![Semi Truck Diagnostic & Testing Tools](https://ic.truckid.com/tools-garage/pages/diagnostic-testing-tools/diagnostic-testing-tools-year_cat_0.jpg)
- Code Readers & Scanners
- Electrical Testers
- Anti-Freeze & Coolant Testers
- Timing Lights
- Fuel System Testers
- Ignition Testers
- Brake Testers & Measuring Tools
- Coating Thickness Gauges
- Oil Pressure Test Tools
- Engine Compression Testers
- Refrigerant Identifiers
- Diagnostic Leak Detection
- Headlight Alignment Systems
- Vehicle Scales
- Window Tint Meters
- Auto Inspection Cameras & Scopes
- Lisle®II™ Relay Jumper Circuit Tester KitGMC 370 1956, II™ Relay Jumper Circuit Tester Kit by Lisle®. Set makes testing relays or live circuits quick and easy. Set includes four jumpers to fit many popular relays on Honda, Nissan, Toyota, newer Ford and GM mini micro relays...Designed for your maintenance needsMade from high-grade material for a long lifespan$66.56
- Lisle®Ignition Spark TesterUniversal Ignition Spark Tester by Lisle®. A handy tool to check ignition spark without removing the spark plug. The tool is specially calibrated to measure ignition voltage. Works on both standard and electronic ignition systems. Easy...Quickly Checks Spark At Plug Wire.A Handy Tool To Check Ignition Spark Without Removing The Spark PlugThe Tool Is Specially Calibrated To Measure Ignition Voltage$8.11
- Lisle®Inline Spark Tester with Coil-on-Plug wireUniversal Inline Spark Tester with Coil-on-Plug wire by Lisle®. Connect the tool between the spark plug and the plug wire. The short wire is double ended to offer a straight boot and a 90-degree boot on one tool. With the engine...Designed to help to get your job done rightManufactured utilizing the highest quality materials$23.09
- Lisle®Master Relay and Fused Circuit Tester KitUniversal Master Relay and Fused Circuit Tester Kit by Lisle®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs,...Kit Makes Testing Relays or Live Circuits Quick and EasyJumpers to fit most popular relays$197.95
- Lisle®Noid LightUniversal Noid Light by Lisle®. Adjustable Probes fit all Electronic Fuel Injection Systems. Clam Shell. Versatile tool tests throttle body injectors, ported fuel injectors and sequential central port injectors. One-person operation....Expertly Crafted using premium-grade materialsUnsurpassed in functionality and reliability$31.50
- Lisle®Power and Ground OutletUniversal Power and Ground Outlet by Lisle®. Provides a Convenient Electrical Ground and Power Source from the Vehicle. Plug the tool into the cigarette lighter or power accessory receptacle. You now have a ground and power source on...Designed for your maintenance needsMade from high-grade material for a long lifespan$16.33
- Lisle®Relay JumperUniversal Relay Jumper by Lisle®. 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 at...Designed to help to get your job done rightManufactured utilizing the highest quality materials$19.01 - $20.82
- Lisle®Replacement BulbUniversal Replacement Bulb by Lisle®. 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$3.45 - $4.11
- Lisle®Replacement Bulb for 20610 Inline Spark TesterUniversal Replacement Bulb for 20610 Inline Spark Tester by Lisle®. 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$3.45
- Lisle®Valve Core for 20250 Compression TesterUniversal Valve Core for 20250 Compression Tester by Lisle®. 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....Expertly Crafted using premium-grade materialsUnsurpassed in functionality and reliability$1.60
- Longacre®Replacement Screw-In Steel Swivel FeetsUniversal Replacement Screw-In Steel Swivel Feets by Longacre®. This top-notch product is designed to help you get in the know of the vehicle’s weight. Made from superior materials, it will provide you with the utmost in quality,...1/2" - 13Designed to help to get your job done right$49.99 - $104.99
- Mastercool®Auto Master 1 oz. Leak ShieldUniversal Auto Master 1 oz. Leak Shield by Mastercool®. Easy to use! Stops leaks in metal and rubber automotive air conditioner parts including evaporators, condensers, o-rings, gaskets and hoses. This product is made of high-quality...For use in R134a, HFO-1234yf, hybrid and electronic A/C systemsIncludes o-ring conditioner, proprietary anti-wear and anti-oxidant additives$51.03
- Mastercool®Combustion Gas Leak Tester KitUniversal Combustion Gas Leak Tester Kit by Mastercool®. 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...Dual chamber for improved accuracy and to reduce the risk of coolant contaminating the testWorks on gasoline & diesel engines$71.48 - $87.90
- Mastercool®Concentrated UV Dye CartridgeUniversal 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 MachineUniversal 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$658.09
- Mastercool®HD Truck Diagnostic Smoke MachineUniversal 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$1,060.67
- Mastercool®Intellasense III Combustible Gas Leak DetectorUniversal 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$209.50
- Mastercool®Mini UV Flashlight KitUniversal 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$32.19
- Mastercool®Professional Refillable Type UV Leak Detection KitUniversal Professional Refillable Type UV Leak Detection Kit by Mastercool®. Leading the way in UV leak detection, Mastercool offers a variety of compact UV leak locator kits. Each kit offers a powerful inspection lamp, a "refillable"...Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$69.93
- Mastercool®Raptor Refrigerant Leak DetectorUniversal Raptor Refrigerant Leak Detector by Mastercool®. 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...Digital Signal Micro ProcessorVisual Leak Level Indicator$190.97 - $288.94
- Mastercool®Rechargeable LED UV LightUniversal Rechargeable LED 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...AAA battery holder provides backup power to flashlight (3 AAA batteries included)Battery Life: 3 to 5 hours continuous leak detection$89.77
- Mastercool®Refrigerant Visual Inspection Sight GlassUniversal Refrigerant Visual Inspection Sight Glass by Mastercool®. The condition of the refrigerant in your A/C system is an important factor in the proper operation of all components and overall cooling efficiency. The only way to...Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$147.82 - $162.02
- Mastercool®Standard DyeUniversal Standard Dye 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 worry-free...Perfect solution for leak detectionJust the way to get the job done quickly and hassle free$18.15 - $163.86
- Mastercool®Turbo/Intake Diagnostic Smoke MachineUniversal Turbo/Intake Diagnostic Smoke Machine by Mastercool®. For all turbo, intakes, exhaust, vacuum lines and vacuum components, manifolds, passenger compartment window and sunroof, headlight/tail-light fixtures and much more. This...Compact, heavy-duty design for years of reliable serviceMultiple options for smoke injection include built-in internal compressor, shop air and inert gases$803.95
- Mastercool®ZEROL HD46 32 oz. R-1234yf Mobile Air Conditioning Compressor LubricantUniversal ZEROL HD46 32 oz. R-1234yf Mobile Air Conditioning Compressor Lubricant by Mastercool®. Bottle. ZEROL HD46 is a fully formulated ISO VG46 grade polyalkylene glycol lubricant designed specifically for application with HFO...Optimized miscibility in HFO refrigerant R1234yfSuperior lubricity compared to alternative lubricant types, including standard 'single end-capped' PAG products, and di-capped PAGs with lower di-capped material content$91.81
- Midtronics®Replacement CableUniversal Replacement Cable by Midtronics®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs, delivering features...Designed to help to get your job done rightManufactured utilizing the highest quality materials$75.07 - $91.55
- Milton®0 to 300 psi Analog Deluxe Compression TesterUniversal 0 to 300 psi Analog Deluxe Compression Tester by Milton®. Deluxe compression tester has a double fiber braided neoprene hydraulic hose. Includes 14 mm long reach adapter and spare valve core. Composite metric scale reads both...Includes an easy to read dial gageDesigned to help to get your job done right$67.66
- Milton®Battery TesterUniversal Battery Tester by Milton®. 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...Tests 6 and 12 volt batteriesAnalog display is easy to read$52.11 - $69.41
- Milton®Circuit TesterUniversal Circuit Tester by Milton®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs, delivering features and...Designed for your maintenance needsMade from high-grade material for a long lifespan$10.19 - $14.37
- Mityvac®0 to 300 psi Analog Professional Compression Test SetUniversal 0 to 300 psi Analog Professional Compression Test Set by Mityvac®. This comprehensive kit includes everything required to perform dry and wet engine cylinder compression tests commonly used to detect ring or cylinder head...Manual pressure release for maintaining peak readingsProfessional-grade threaded adapters for leak-proof seals$78.05