Mechanics and car enthusiasts, this relay bypass kit is an absolute time-saver for diagnosing electrical issues! The 6-piece set covers all the common relay sizes you'll encounter - 9036-1 (36-LRG 20AMP), 9036-2 (36-MED 20AMP), 9036-3 (36-SML 10AMP), 9037-1 (37-LRG 20AMP), 9037-2 (37-MED 20AMP), and 9037-3 (37-SML 10AMP). The concept is brilliant - instead of guessing whether a relay is faulty, you simply plug the appropriate bypass tool into the relay socket and take direct control of the circuit. This lets you quickly test fuel pumps, window motors, headlight switches, AC compressors, cooling fans, and other components that use relays. The compatibility is extensive - works with GM, Chrysler, Korean, Domestic vehicles, plus 2004-2006 Audi, 1999-2005 Volkswagen, 1995-2006 BMW, and 1970+ Japanese vehicles. What's really useful is that it operates independently of the 'key on' systems, so you can test components without going through the normal electrical pathways. The build quality feels solid and durable - these aren't flimsy plastic tools that'll break after a few uses. For professional mechanics, this kit can cut diagnostic time significantly, and for DIYers, it makes troubleshooting electrical issues much less intimidating. Whether you're dealing with a non-starting vehicle, intermittent electrical problems, or just want to verify component operation, having this bypass kit in your toolbox is incredibly valuable. It's one of those specialized tools that seems simple but can save you hours of frustration and potentially expensive misdiagnoses!
Free 30-day returns 
Free 30-day returns
