Check the listing for details. Vacuum Electronic Distributor 25D/45D Distributor For Mini MGB Austin. Condition: New. Listed at 49.99 USD. Description:Features:1.New Electronic distributor to replace DM2 25D4 and 45D4 distributors (can replace 23D but does have vacuum) fits negative earth only cars only.2.The 45D type distributor fitted most British 4cly cars built from 1973 before this they used DM2 and 25D distributors, this unit can be used to replace these older type distributors.3.Easy to fit no need to change the wiring just 2 wires to connect to the coil.4.Automatic Dwell angle.5.No need to change the timing.6.Works with any coil between 1.5 and 3ohms.7.Comes complete with new cap and Rivet-less Rotor arm.8.Please supply your car details after purchase so we can make sure we supply the correct distributor for your car, please note this is for negative earth cars only.9.NOT FOR POSI.