Mack Semi Truck Electrical System Testers
- Electronic Specialties®Fuse Buddy™ Current Loop Kit (309A)Universal Fuse Buddy™ Current Loop Kit by Electronic Specialties®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance...Plug in Fuse Buddy and read circuit amp drawsEasy test connection into fused circuits$32.99
- Electronic Specialties®Fuse Buddy™ Mini Current Loop (307M)Universal Fuse Buddy™ Mini Current Loop (307M) by Electronic Specialties®. Just clamp your current probe over the loop to access the amperage draw through a fused circuit. Easy testing access, plugs right into fuse socket, no more...Designed to help to get your job done rightManufactured utilizing the highest quality materials$17.97
- Electronic Specialties®LOADpro™ 12 V/48 V Dynamic Test Leads (185)Universal LOADpro™ 12 V/48 V Dynamic Test Leads by Electronic Specialties®. This new version of LOADpro is capable of loading circuits as high as 48 volts. 185 can be deployed on Electrical System ranging from 12 volts up to 48 volts....Use on 12V to 48V circuitsPerforms voltage drop test with the push of a button$68.80
- Electronic Specialties®Maxi Relay Adapters (190-8)Universal Maxi Relay Adapters by Electronic Specialties®. Had consistent and regular requests from dealers and end users to add a sixth adapter to the Relay Buddy test system. The relay in question is a popular 50 Amp relay used on...Adapter allows testing of heavy duty 4-pin Maxi relays - commonly used in Heavy DutyRelay adapter plugs into Relay Buddy first$17.14
- Electronic Specialties®Relay Buddy™ 12 V/24 V Pro Relay Tester (192)Universal Relay Buddy™ 12 V/24 V Pro Relay Tester by Electronic Specialties®. Relay Buddy 12/24 is a quick go / no-go tester for the most common automotive relays. This new version Relay Buddy tests both 12 and 24 volt relays. If the...Quick off-the-car relay testerChecks relay coil & switch contacts$66.12
- Electronic Specialties®Relay Buddy™ 12 V/24 V Pro Relay Tester Kit (193)Universal Relay Buddy™ 12 V/24 V Pro Relay Tester Kit by Electronic Specialties®. Relay Buddy 12/24 Pro Test Kit tests five different relays. Relay Buddy is a quick go / no-go tester for the most common automotive relays and this new...Quick off-the-car relay testerChecks relay coil & switch contacts$145.02
- Electronic Specialties®Troubleshooting Book (184)Universal Troubleshooting Book by Electronic Specialties®. Complete 200-page guide to all aspects of electrical equipment troubleshooting - explained in a way that makes it useful in the store. Written by a mechanic for real, practice...Batteries/TestingRelays, potentiometers, resistors, and solenoids$52.82
- FJC®12 V 500 A Carbon Pile Battery Load Tester (45115)Universal 12 V 500 A Carbon Pile Battery Load Tester (45115) by FJC®. The Power Division of FJC is an industry-leading manufacturer and distributor of power electronic products and systems for mobile markets including battery testers,...Test alternators, regulators & startersSeparate Volt and A meters$142.24
- FJC®6 V/12 V 100 A Battery Tester (45110)Universal 6 V/12 V 100 A Battery Tester (45110) by FJC®. The Power Division of FJC is an industry-leading manufacturer and distributor of power electronic products and systems for mobile markets including battery testers, chargers,...Test car / truck batteries of current draw, voltage, and alternator performanceQuick 10 second load test$42.30
- FJC®6 V/12 V 125 A Battery Tester (45107)Universal 6 V/12 V 125 A Battery Tester (45107) by FJC®. The Power Division of FJC is an industry-leading manufacturer and distributor of power electronic products and systems for mobile markets including battery testers, chargers,...Test car / truck batteries of current draw, voltage, and alternator performanceQuick 10 second load test$55.60
- FJC®6 V/12 V/24 V 1000 A Carbon Pile Battery Load Tester (45118)Universal 6 V/12 V/24 V 1000 A Carbon Pile Battery Load Tester (45118) by FJC®. The Power Division of FJC is an industry-leading manufacturer and distributor of power electronic products and systems for mobile markets including battery...Tests alternators, regulators & startersLarge, easy-to-read gauges$430.56
- GearWrench®6 V/12 V High-Low Circuit Tester (129D)Universal 6 V/12 V High-Low Circuit Tester by GearWrench®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs,...Tests voltage in 6 and 12V systems by grounding the clip and touching the probe to the point being testedTester bulb will light if power is present$12.68
- IPA®Electric Brake Force Meter with Dynamic Load Simulation And Circuit Testing (9107A)Universal Electric Brake Force Meter with Dynamic Load Simulation And Circuit Testing by IPA®. Tests Truck-Side Brake Controller Output and All Towing-Lighting Functions Without a Trailer! The #9107A Electric Brake Force Meter with...Brake Force Meter displays real-time, brake controller output gain and timingQuickly troubleshoots electrical circuits and ground condition$164.96
- IPA®Fuse Saver™ Electrical System Tester Kit (8016)Universal Fuse Saver™ Electrical System Tester Kit by IPA®. Chase Down Short Circuits Without Blowing Fuses! The Fuse Saver® Master Kit provides a level of versatility in electronics testing (5-30 amps) never before available. It...Helps install radios, CD players, radar detectors and accessories with easeAllows a technician to move around a vehicle shake testing wires while looking for the short$204.71
- Lang Tools®10' 3 Leads Magnetic Retractable Test Leads with Insulated Alligator Clip (1135)Universal 10' 3 Leads Magnetic Retractable Test Leads with Insulated Alligator Clip (1135) by Lang Tools®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for...Retractable test leads pull out and stay at desired length and rewind into its own protective case when not in useDesigned for your maintenance needs$25.32
- Lang Tools®10' 3 Leads Retractable Test Leads with Insulated Alligator Clip (1129)Universal 10' 3 Leads Retractable Test Leads with Insulated Alligator Clip (1129) by Lang Tools®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your...Retractable test leads pull out and stay at desired length and rewind into its own protective case when not in useDesigned for your maintenance needs$16.42
- Lang Tools®30' 2 Leads Magnetic Retractable Test Leads with Insulated Alligator Clip (1138)Universal 30' 2 Leads Magnetic Retractable Test Leads with Insulated Alligator Clip (1138) by Lang Tools®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for...Retractable test leads pull out and stay at desired length and rewind into its own protective case when not in useDesigned for your maintenance needs$36.03
- Lang Tools®30' 2 Leads Retractable Test Leads with Insulated Alligator Clip (1137)Universal 30' 2 Leads Retractable Test Leads with Insulated Alligator Clip (1137) by Lang Tools®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your...Retractable test leads pull out and stay at desired length and rewind into its own protective case when not in useDesigned for your maintenance needs$29.43
- Lang Tools®30' Retractable Test Leads with Insulated Alligator Clip (1130)Universal 30' Retractable Test Leads with Insulated Alligator Clip (1130) by Lang Tools®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical...Retractable test leads pull out and stay at desired length and rewind into its own protective case when not in useDesigned for your maintenance needs$14.56
- Lisle®Deluxe Relay Tester Set (60660)Universal Deluxe Relay Tester Set (60660) by Lisle®. Includes 8 Jumpers to Fit Most Popular Relays. Also Includes Test Lead Kit and Relay Puller Pliers. Jumpers have tabs for clamping and flat pads to place test leads on. No need to...Designed for your maintenance needsMade from high-grade material for a long lifespan$155.82
- Lisle®Master Relay and Fused Circuit Tester Kit (69300)Universal 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®Power and Ground Outlet (32150)Universal 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®Replacement Bulb for 20610 Inline Spark Tester (20680)Universal 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
- Milton®6 V/12 V Battery Tester (1260)Universal 6 V/12 V Battery Tester (1260) by Milton®. This battery, starter and charging system tester can test up to 120 amps at 10 volts. This tester has a black metal finish and includes storage on the side for cables. With its heavy...Tests 6 and 12 volt batteriesAnalog display is easy to read$52.11
- Milton®6 V/24 V Circuit Tester (S1235)Universal 6 V/24 V Circuit Tester (S1235) 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...Designed for your maintenance needsMade from high-grade material for a long lifespan$15.02
- Nippon America®350 A Anderson Type DC Plug (MLX8040)Universal 350 A Anderson Type DC Plug by Nippon America®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs,...Designed for your maintenance needsMade from high-grade material for a long lifespan$10.99
- OTC®6 V/12 V 100 A Battery Load Tester (3180)Universal 6 V/12 V 100 A Battery Load Tester by OTC®. Tests batteries on or off the car in just 10 2nds. Convenient, portable size and easy-to-read scales. This product has been engineered and designed to help you with your battery and...Heavy-duty copper-plated clampsLoad safety switch prevents arcing$52.51
- OTC®Anti-zap Auto Surge Protector (3386)Universal Anti-zap Auto Surge Protector by OTC®. Prevents damage to sensitive electronic systems. Protects key vehicle components from high-voltage spikes. Your electrical system maintenance will be easier with this high-quality...Designed for your maintenance needsMade from high-grade material for a long lifespan$161.98
- OTC®Bosch™ VET 100 Circuit Analysis Tool (3920)Universal Bosch™ VET 100 Circuit Analysis Tool by OTC®. The Bosch VET 100 Circuit Analysis Tool is perfect for data stream analysis using your scan tool. With quick and easy setup, you can identify faulty sensors, wiring harnesses,...Save time and quickly identify failed circuit component, wiring harness or ECMUse with any scan tool during data stream analysis$237.04
- OTC®Parasitic Draw Test Switch (6945)Universal Parasitic Draw Test Switch by OTC®. Test switch is used with an amp meter to isolate parasitic amperage draws on all GM vehicles or any vehicle with a side- or top-post battery. This tool attaches between the negative battery...Designed to help to get your job done rightManufactured utilizing the highest quality materials$115.78