VW equivalent Part number 101-000-002/AB 

Replacement Of Bosch spark plug W7DC

W - 14mm x 1.25mm
R - Suppressed
6 - Heat range
D - 19mm Reach
C - Copper electrode

Engine fitment:
Mk1 Golf 1.5 JB, FN, up to chassis 179 3750 000 and 1.1 FA, FJ, GG, 1.3 GF, GS 1.5 EH, 1.6 EJ, EM, FR from 1793750001 onwards

Mk1 Golf Cabriolet 1.5 JB, FN, up to chassis 159 3750 000 and 1.1 FA, FJ, GG, 1.3 GF, GS 1.5 EH, 1.6 EJ, EM, FR from 1593750001 onwards

Mk1 Scirocco EE,EF,EH,FN,FP,FR,FT,FV,JB

MK1 Polo HA, HB,HD,HD,HE, Mk2 Polo upto 80-H-220 000 GL,GT,HB,HH,HJ,HK,HW