Complete Bosch / Marelli twin-plug transistor ignition system for Porsche 906 & 911 R

Package comprises:

1. Genuine Magnetti Marelli twin-plug distributor, p/n S121 AA 13o

2. Bosch transistorised ignition units:

- larger unit: p/n 0 227 051 003 (12V, Bosch date code: 804 = April '68)

- smaller unit: "ZS 17/3 B8" marking on side

Porsche info: "WET '67 911R Fig. 9/1, #02 901.602.701.00 Transistor unit, Bosch [Schältgeralt] Qty: 2"

3. Bosch ballast regulators x2, Bosch p/n 0 227 901 004 with "ZS 2/2 A4" marking on side

Porsche info: WET '67 911R Fig. 9/1, #03 901.602.801.00 Preresistance (Ballast resistor) [Vorwiderstand] Qty: 2

These only appeared on Porsche 906 Carrera 6 and 911R (as well as some aftermarket installations)

Used condition - refer to photos

Note: all sales are final