Hey DIY mechanics and professional technicians, this Therwen diagnostic kit is one of those tool sets that pays for itself the first time you use it. You get three different testers in one package - a fuel injection pressure tester that goes up to 140 PSI, a compression tester that handles up to 300 PSI, and a spark tester for checking ignition issues. The fuel pressure kit comes with 45 pieces including various adapters that fit most modern fuel systems, while the compression tester has 8 pieces with rubber cone ends and metal adapters for 10mm, 12mm, 14mm, and 18mm spark plug holes. The spark tester is super handy for quickly checking if you're getting spark without having to pull plugs and ground them. The gauges have clear acrylic dials that are easy to read, and everything comes in organized PVC cases that keep things protected in your toolbox. I've used this set to diagnose everything from no-start conditions on cars to running issues on small engines and motorcycles. The quality is solid for the price - not professional shop grade, but definitely good enough for most home mechanics and even light professional use. If you're tired of guessing about engine problems or paying diagnostic fees at shops, this kit gives you the tools to actually figure out what's going on with your vehicle's fuel, compression, and ignition systems.
Free 30-day returns 
Free 30-day returns
