Universal Diagnostic & Testing Tools
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S&G Tool Aid®Analog GaugeUniversal Analog Gauge by S&G Tool Aid®. 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$24.62 - $73.73 - S&G Tool Aid®Diesel Tester Adapter for 34900 Diesel Engine Compression Tester Set (34770)Universal Diesel Tester Adapter for 34900 Diesel Engine Compression Tester Set by S&G Tool Aid®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with...Allows a Bacharach brand adapter to be used with Cat. No. 34700, Diesel Compression TesterDesigned to help to get your job done right$22.36
- S&G Tool Aid®Female Quick Disconnect Coupler (34703)Universal Female Quick Disconnect Coupler by S&G Tool Aid®. 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$15.47
- ATD®0 to 300 psi Analog Petrol Compression Tester (5659)Universal 0 to 300 psi Analog Petrol Compression Tester by ATD®. 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...For gasoline engine compression testing on domestic and foreign cars and trucksScrew-in adapters with O-rings provide professional accuracy$51.11
- ATD®0 to 300 psi Analog Super Compression Tester Set (5639)Universal 0 to 300 psi Analog Super Compression Tester Set by ATD®. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the perfect deal for your ultimate...Quick coupler connection on gauge assembly for fast and easy changing of hose and adapter assembliesEasy push-button deflator for fast service$146.53
- ATD®Coolant Refractometer (3705)Universal Coolant Refractometer by ATD®. 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...High-quality refractometer offers a fast, easy way to test the freezing point of coolant/anti-freezeWorks with Ethylene or Propylene Glycol anti-freeze$66.47
- ATD®DEF/Coolant Refractometer (3325)Universal DEF/Coolant Refractometer by ATD®. 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...3-in-1 tool combines coolant, battery, and DEF scales all in oneFocusing eyepiece for clear readings and comfort of use$82.01
- ATD®Deluxe Antifreeze and Coolant Tester (1105)Universal Deluxe Antifreeze and Coolant Tester by ATD®. 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...Easily checks condition of antifreeze and coolantWorks for all ethylene glycol coolants, including GM Dex-Cool™$6.07
- ATD®Pocket Antifreeze and Coolant Tester with Pouch (1101)Universal Pocket Antifreeze and Coolant Tester with Pouch by ATD®. 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...Easily checks condition of antifreeze and coolantWorks for all ethylene glycol coolants, including GM Dex-Cool™$5.02
- ATD®Professional Antifreeze and Coolant Tester (1106)Universal Professional Antifreeze and Coolant Tester by ATD®. 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...Easily checks condition of antifreeze and coolantWorks for all ethylene glycol coolants, including GM Dex-Cool™$7.45
- AllStar Performance®0 to 300 psi Analog Compression Tester (ALL96520)Universal 0 to 300 psi Analog Compression Tester by AllStar Performance®. Tester checks cylinder compression from 0 to 300 psi and features an air-hold valve to reset gauge. One piece stepped brass end fitting with o-rings fits 14mm and...Precise manufacturing and high-grade materialsExpertly Crafted from the highest grade materials$24.99
- Baldwin Filters®FleetStrip™ Coolant Test Kit (CTK5029)Universal FleetStrip™ Coolant Test Kit by Baldwin Filters®. Liquid supplemental coolant additives can be used instead of coolant filters to replenish the cooling system when depleted. Periodic testing of coolant mixtures should be...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$44.74
- Baldwin Filters®FleetStrip™ Coolant Test Strip KitUniversal FleetStrip™ Coolant Test Strip Kit by Baldwin Filters®. Liquid supplemental coolant additives can be used instead of coolant filters to replenish the cooling system when depleted. Periodic testing of coolant mixtures should...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$2.67 - $12.93
- CTA®0 to 300 psi Analog Compression Tester Set (2012)Universal 0 to 300 psi Analog Compression Tester Set by CTA®. 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...Specialty tools to get your job done in a safer and easier fashionPractical and efficient solutions for pros and DIYers alike$101.70
- CTA®Adapter for 2012 Master Compression Tester KitUniversal Adapter for 2012 Master Compression Tester Kit by CTA®. 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....Practical and efficient solutions for pros and DIYers alikeNo more headaches, beard scratching or tool throwing$7.01
- Central Tools®STORM™ Multi-Purpose Refractometer (3R401)Universal STORM™ Multi-Purpose Refractometer by Central Tools®. For Coolant, Battery and DEF. 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...Combined capability in one toolEasily check status of coolant, DEF and battery fluid$88.92
- EZRed®Windshield Washer Fluid Hydrometer (S104)Universal Windshield Washer Fluid Hydrometer 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...Tests methanol solutionsTemperature compensating$13.53
- Equus®Analog Compression Tester (3612)Universal Analog Compression Tester by Equus®. Compression tester has a large easy-to-read 2.5" dial face with dual-calibrated and color-coded scales. Packaged as a 4-piece kit for optimum use options. This product is made of...Designed to perform compression tests to help identify damaged pistons worn rings burnt valves and blown head gasketsProperly rated fuel hose and brass fittings make this tool a step above the rest in quality and longevity$28.53
- Equus®INNOVA™ 6-piece 0 to 300 psi Analog Compression Tester Plus Kit (3614)Universal INNOVA™ 6-piece 0 to 300 psi Analog Compression Tester Plus Kit by Equus®. The Innova 3614 is designed with a stainless-steel hose for ultimate reliability and longevity. Featuring several different sized adapters, including...The most common 14mm and 18mm fittings are built inUniversal direct shaft: for quick compression readings without having to thread on to the cylinder head$30.62
- Gates®Engine Coolant and Battery Portable Refractometer (91001)Universal Engine Coolant and Battery Portable Refractometer by Gates®. Measures concentration of coolant mixture in engine. Place small sample of coolant on lens, then hold lens up to light source. Light bends through liquid, providing...Measuring coolant concentrations is essential to cooling system maintenanceMost technicians use hydrometers to test coolant concentration via gravity or floating ball scales$179.85
- GearWrench®0 to 300 psi Analog Compression Tester (2428D)Universal 0 to 300 psi Analog Compression Tester by GearWrench®. 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...Tester has a 16" rubber hose and is a serviceable productIncludes special air-hold valve to easily reset gauge$36.33
- General Tools®Refractometer (REF401)Universal Refractometer by General Tools®. The #REF401 refractometer-thermometer is ideal for measuring the specific gravity (SG) and temperature of ethylene and propylene glycol (antifreeze). This product is made of high-quality...Fahrenheit scaleMetal body$94.07
- Insize®Portable Refractometer (ISQ-RM30)Universal Portable Refractometer by Insize®. Quickly measure the concentration of coolant.Refer to the refraction factor of coolant, for example:the refraction factor of grinding emulsion is 2.1, the reading value is 6%, so the actual...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$144.53
- Lang Tools®0 to 1000 psi Analog Diesel Compression Tester (TU15PB)Universal 0 to 1000 psi Analog Diesel Compression Tester by Lang Tools®. 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$58.02
- Lang Tools®0 to 300 psi Analog Petrol Compression Tester SetUniversal 0 to 300 psi Analog Petrol Compression Tester Set by Lang Tools®. 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$53.88 - $125.43
- Lang Tools®Valve Core for TU-30 Compression Tester (41751)Universal Valve Core for TU-30 Compression Tester by Lang Tools®. 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$6.20
- Lisle®Valve Core for 20250 Compression Tester (20100)Universal 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
- Mastercool®Multi Fluid Refractometer (43705)Universal Multi Fluid Refractometer by Mastercool®. 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...Offers a quick and easy way to test the freezing point of coolant/anti-freezeCompatible with Ethylene or Propylene Glycol$76.12
- Milton®0 to 300 psi Analog Deluxe Compression Tester (S1251)Universal 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
- Mityvac®0 to 300 psi Analog Professional Compression Test Set (MV5530)Universal 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$80.41
