Universal Diagnostic & Testing Tools

Universal Semi Truck Diagnostic & Testing Tools
Please Note:
There are no vehicle specific diagnostic & testing tools available for your 1986 Kenworth T400. Please view our selection of universal fit products below.
  • S&G Tool Aid® - Protect-A-Terminal™ 6 V/12 V/24 V Computer Safe Automotive Circuit Tester
    S&G Tool Aid® - Protect-A-Terminal™ 6 V/12 V/24 V Computer Safe Automotive Circuit Tester (28100)
    0
    # mpn2533639
    Universal Protect-A-Terminal™ 6 V/12 V/24 V Computer Safe Automotive Circuit Tester by S&G Tool Aid®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for...
    Our most computer safe circuit testerHigh impedance - the current draw is less than 7 milliamps to protect all vehicle circuits
    $12.37
    In Stock - Ships in 24 to 48 hrs
  • S&G Tool Aid® - Protect-A-Terminal™ 6 V/12 V/24 V Heavy Duty Automotive Circuit Tester
    S&G Tool Aid® - Protect-A-Terminal™ 6 V/12 V/24 V Heavy Duty Automotive Circuit Tester (28000)
    0
    # mpn2533638
    Universal Protect-A-Terminal™ 6 V/12 V/24 V Heavy Duty Automotive Circuit Tester by S&G Tool Aid®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your...
    Our most computer safe circuit testerHigh impedance - the current draw is less than 7 milliamps to protect all vehicle circuits
    $13.66
    In Stock - Ships in 24 to 48 hrs
  • SUR&R® - 0 to 120 psi Deluxe Fuel Injection Pressure Tester Kit
    SUR&R® - 0 to 120 psi Deluxe Fuel Injection Pressure Tester Kit (FPT22)
    0
    # mpn2542687
    Universal 0 to 120 psi Deluxe Fuel Injection Pressure Tester Kit by SUR&R®. Accurately Diagnose Fuel Delivery Problems. Advanced kit tests faulty fuel pumps, pressure regulators, fuel lines, check valves, and fuel filters. This product...
    Make connections quickly and easily using S.U.R.&R.- exclusive Quick Connect adapters with thumb release, push button convenienceExtra-long, hose included for ease of use inside vehicle cabin
    $282.71
    In Stock - Ships in 24 to 48 hrs
  • SUR&R® - 12 mm Banjo Line Female Adapter
    SUR&R® - 12 mm Banjo Line Female Adapter (FSA70)
    0
    # mpn4712443237
    Universal 12 mm Banjo Line Female Adapter by SUR&R®. 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
    $18.81
    In Stock - Ships in 24 to 48 hrs
  • SUR&R® - 5/16" Quick Connect to Nylon Connector
    SUR&R® - 5/16" Quick Connect to Nylon Connector (K150)
    0
    # mpn2542456
    Universal 5/16" Quick Connect to Nylon Connector by SUR&R®. 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,...
    Designed for your fuel system maintenanceMade from quality materials to survive the test of time
    $11.47
    In Stock - Ships in 24 to 48 hrs
  • SUR&R® - 9/16" Spring Lock Line Male Adapter
    SUR&R® - 9/16" Spring Lock Line Male Adapter (FSA55)
    0
    # mpn1477886723
    Universal 9/16" Spring Lock Line Male Adapter by SUR&R®. 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,...
    Designed for your fuel system maintenanceMade from quality materials to survive the test of time
    $19.32
    In Stock - Ships in 24 to 48 hrs
  • SUR&R® - Deluxe Fuel Pressure Tester Adapter Kit
    SUR&R® - Deluxe Fuel Pressure Tester Adapter Kit (FPT290)
    0
    # mpn2542688
    Universal Deluxe Fuel Pressure Tester Adapter Kit by SUR&R®. Turn Your Basic Fuel Pressure Tester Into A Master Kit. Universal adapter set connects fuel pressure testers and injection cleaner canisters to virtually any vehicle.
    21-piece kit fits over 90% of domestic and foreign vehiclesExtension hose allows pressure gauge to be read inside vehicle during drivability testing
    $212.21
    In Stock - Ships in 24 to 48 hrs
  • SUR&R® - FPT22 Tee Fitting
    SUR&R® - FPT22 Tee Fitting (FPT017)
    0
    # mpn4759069433
    Universal FPT22 Tee Fitting by SUR&R®. 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
    $11.82
    In Stock - Ships in 24 to 48 hrs
  • SUR&R® - Female Spring Lock to Nylon Connector
    SUR&R® - Female Spring Lock to Nylon Connector
    0
    # 2009142079
    Universal Female Spring Lock to Nylon Connector by SUR&R®. 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,...
    Designed for your fuel system maintenanceMade from quality materials to survive the test of time
    $11.56 - $12.14
    In Stock - Ships in 24 to 48 hrs
  • SUR&R® - Inline Schrader™ Valve
    SUR&R® - Inline Schrader™ Valve
    0
    # 3608090219
    Universal Inline Schrader™ Valve by SUR&R®. Provides Easy Access For Connecting Fuel System Testing And Cleaning Equipment. Problem - Hard-to-access or non-existent Schrader™ valves make it difficult to connect fuel system...
    Fits virtually any vehicleProvides a permanent valve location that is easy to access
    $21.20 - $25.40
    Availability Varies - Depends on Product Options
  • SUR&R® - Male Spring Lock to Nylon Connector
    SUR&R® - Male Spring Lock to Nylon Connector
    0
    # 2009142074
    Universal Male Spring Lock to Nylon Connector by SUR&R®. 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,...
    Designed for your fuel system maintenanceMade from quality materials to survive the test of time
    $11.56 - $12.06
    In Stock - Ships in 24 to 48 hrs
  • SUR&R® - Nylon to Nylon Reducer Connector
    SUR&R® - Nylon to Nylon Reducer Connector
    0
    # 1089748290
    Universal Nylon to Nylon Reducer Connector by SUR&R®. 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
    $9.80 - $11.35
    Availability Varies - Depends on Product Options
  • SUR&R® - Quick Connect Line Adapter
    SUR&R® - Quick Connect Line Adapter
    0
    # 3608087139
    Universal Quick Connect Line Adapter by SUR&R®. 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...
    Designed to help to get your job done rightManufactured utilizing the highest quality materials
    $19.52 - $20.12
    In Stock - Ships in 24 to 48 hrs
  • SUR&R® - Rubber Hose to Nylon Connector
    SUR&R® - Rubber Hose to Nylon Connector
    0
    # 2009142083
    Universal Rubber Hose to Nylon Connector by SUR&R®. 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
    $9.93 - $10.09
    In Stock - Ships within 24 hrs
  • SUR&R® - Spring Lock Line Female Adapter
    SUR&R® - Spring Lock Line Female Adapter
    0
    # 4529995664
    Universal Spring Lock Line Female Adapter by SUR&R®. 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
    $18.32 - $18.60
    In Stock - Ships in 24 to 48 hrs
  • Santech® - UV Leak Detection Flashlight
    Santech® - UV Leak Detection Flashlight (MT1183)
    0
    # mpn4527149555
    Universal UV Leak Detection Flashlight by Santech®. Durable, 12 LED flashlight used to detect A/C refigerant leaks, in conjunction with UV dye. LED detection lights that are the next generation in leak detection. Dye cleaner, dye...
    Designed to keep your A/C system in top shapeThe finest quality at a great price
    $17.44
    In Stock - Ships within 24 hrs
  • Schumacher® - 6 V/12 V 100 A Battery Load Tester
    Schumacher® - 6 V/12 V 100 A Battery Load Tester (BT100)
    0
    # mpn4851612335
    Universal 6 V/12 V 100 A Battery Load Tester by Schumacher®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs,...
    Easy to operateTest load, battery condition, starter motor draw and complete charging system diagnosis.
    $55.94
    In Stock - Ships within 24 hrs
  • Solar® - Battery Load Tester
    Solar® - Battery Load Tester
    0
    # 3624896586
    Universal Battery Load Tester by Solar®. 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...
    For 6 and 12 Volt batteriesTests batteries to 1000 Cold Cranking Amps
    $27.96 - $48.54
    Availability Varies - Depends on Product Options
  • Solar® - Carbon Pile Battery Load Tester
    Solar® - Carbon Pile Battery Load Tester
    0
    # 3624897585
    Universal Carbon Pile Battery Load Tester by Solar®. 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...
    Enables Starter and Alternator assessmentLarge, easy-to-read gauges
    $290.17 - $301.91
    In Stock - Ships within 24 hrs
  • Solar® - Digital Electrical System and Battery Tester
    Solar® - Digital Electrical System and Battery Tester
    2
    # 3624898571
    Universal Digital Electrical System and Battery Tester by Solar®. 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...
    Designed and made by highly qualified specialistsProven to enable fast, easy and reliable battery analysis
    $63.98 - $441.18
    Availability Varies - Depends on Product Options
  • Standard® - Handypack™ 12 V LED Electrical System and Battery Tester
    Standard® - Handypack™ 12 V LED Electrical System and Battery Tester (HP6340)
    0
    # mpn507671538
    Universal Handypack™ 12 V LED Electrical System and Battery Tester by Standard®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system...
    Manufactured for your battery maintenance tasksBuilt to meet strict quality standards and safety requirements
    $11.36
    In Stock - Ships within 24 hrs
  • Standard® - Handypack™ Battery Test Clips
    Standard® - Handypack™ Battery Test Clips
    0
    # 2020911440
    Universal Handypack™ Battery Test Clips by Standard®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs,...
    Manufactured for your battery maintenance tasksBuilt to meet strict quality standards and safety requirements
    $2.34 - $3.86
    In Stock - Ships within 24 hrs
  • Stant® - Fuel Cap Testing Calibration Cap
    Stant® - Fuel Cap Testing Calibration Cap
    0
    # 2009140943
    Universal Fuel Cap Testing Calibration Cap 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
    $69.52 - $70.22
    Availability Varies - Depends on Product Options
  • Supercool® - 1 oz. R-134a Total Leak Stop with U/V Dye & "HFC Free" Applicator
    Supercool® - 1 oz. R-134a Total Leak Stop with U/V Dye & "HFC Free" Applicator (39241)
    0
    # mpn4918270970
    Universal 1 oz. R-134a Total Leak Stop with U/V Dye & "HFC Free" Applicator by Supercool®. With U/V Dye & "HFC Free" Applicator. This product is made of high-quality materials to serve you for years to come. Designed using...
    Stops small leaks in evaporators, condensers, rubber hoses, gaskets and O-ringsContains U/V dye for leak detection
    $19.08
    In Stock - Ships within 24 hrs
  • Supercool® - 10 oz. Single Application Multi-Purpose Total UV Dye
    Supercool® - 10 oz. Single Application Multi-Purpose Total UV Dye (16525)
    0
    # mpn1146825891
    Universal 10 oz. Single Application Multi-Purpose Total UV Dye by Supercool®. U/V Total Dye is a hydrocarbon based product. Supercool recommends that after using U/V Total Dye to locate and repair the leak that the brake system be...
    Use with motor oil, hydraulic fluid, power steering fluid, brake fluid,diesel fuel, gasoline and transmission fluidsMix 1/4 ounce per quart of fluid
    $6.23
    In Stock - Ships within 24 hrs
  • Supercool® - 2 oz. HFC-Free Total Leak Stop
    Supercool® - 2 oz. HFC-Free Total Leak Stop (22878)
    0
    # mpn1146826309
    Universal 2 oz. HFC-Free Total Leak Stop by Supercool®. With U/V Dye & "HFC Free" Applicator. Aerosol can with hose. For R134a systems. Keep your pride and joy running in tip-top shape with this top-grade automotive product. With it,...
    Stops small leaks in evaporators, condensers, rubber hoses, gaskets and O-ringsDoes not contain polymers. Will not harm or clog A/C system components, reclamation or recovery machines
    $24.88
    In Stock - Ships within 24 hrs
  • Supercool® - 4 LEDs UV Leak Detection Lamp
    Supercool® - 4 LEDs UV Leak Detection Lamp (14312)
    0
    # mpn1146825830
    Universal 4 LEDs UV Leak Detection Lamp by Supercool®. 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...
    Breakthrough lens technology focuses U/V beams for increased brightness, intensity and contrastHandy 4.5" x 1.75" (11.43cm x 4.44cm) size
    $43.94
    In Stock - Ships within 24 hrs
  • Supercool® - 4 oz. R-134a Seal Leak Stop
    Supercool® - 4 oz. R-134a Seal Leak Stop (STOPA)
    0
    # mpn1146827347
    Universal 4 oz. R-134a Seal Leak Stop by Supercool®. With U/V Dye. Rubber Only Components. 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...
    Stops small leaks in evaporators, condensers, hoses, gaskets and sealsDoes not contain polymers. Will Not Harm or clog A/C system
    $9.10
    In Stock - Ships within 24 hrs
  • Supercool® - 4 oz. R-134a Total A/C Leak Stop
    Supercool® - 4 oz. R-134a Total A/C Leak Stop (ST27)
    0
    # mpn1146827351
    Universal 4 oz. R-134a Total A/C Leak Stop by Supercool®. With U/V Dye. Aerosol Can. 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...
    Stops small leaks in evaporators, condensers, hoses, gaskets and sealsDoes not contain polymers. Will Not Harm or clog A/C system components, reclamation or recovery machines
    $26.30
    In Stock - Ships within 24 hrs
  • Supercool® - 7 LEDs UV Leak Detection Lamp
    Supercool® - 7 LEDs UV Leak Detection Lamp (14314)
    0
    # mpn1146825828
    Universal 7 LEDs UV Leak Detection Lamp by Supercool®. 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...
    Breakthrough lens technology focuses UV beams for increased brightness, intensity and contrastCordless and rechargeable 120 V. charger
    $71.09
    In Stock - Ships within 24 hrs