Need a reliable pressure sensor for your Thermo King unit? Check out this OEM-style pressure sensor, part number 42-1309 (also crosses to 41-7959). It's listed as 'New Other' - which means these are genuine unused parts, but they might have some minor storage scratches or dust (nothing affecting performance!). They're perfect as a direct replacement for the discharge transducer in your refrigeration unit. Key specs: it measures pressure from 0 all the way up to 500 PSI. We're so confident that we back it with a solid 1-year warranty. Some interchange part numbers to help you confirm fit: 8159370, 3HMP2-4, 140321, S.N 178621. Unbranded but built to do the job. No UPC. If you're tired of dealing with faulty pressure readings in your Thermo King system, this sensor is a straightforward swap to get things running accurately again. Keep your cargo cool and your mind at ease!