DB Electrical GLU6002 Voltage Regulator For Ford Tractor 2000 3000 4000 5000 MG Triumph / 105E-10505-C 3004E-10505-A 622E-10505-A 71AB-10505-BA C5NF-10505-B C7NN-10505-B 37207 37279 37292 100% New aftermarket unit built to meet OEM specifications 1-year warranty protects you after your purchase Factory direct pricing with no middleman markup delivers exceptional value If your original generator has the tach drive on the rear of it, this is the voltage regulator you need. For Lucas C40, C40T Series Generators. Used On Ford Tractors, MG, Triumph Specs: 12 Volt, B-Circuit