Distributor Vacuum Capsule. This is a brand new (not rebuilt) vacuum unit/capsule beautifully made in the USA. It carries all the original Lucas markings. Applications: 3.8 Liter E-Type, Engine R.1001 to R.9999 3.8 Liter E-Type, Egine RA.1001 to RA.1381 3.4 Liter MK I with 9:1 compression MK II: Fits various DMBZ.6 distributors Note fits DMBZ.6A & DMBZ.6 distributors. The points are secured with two screws (as opposed to one).