This is a high Torque Starter Motor 

This starter offers faster and quieter starting than the original Lucas motor.
It is suitable for all Silver Shadow and Bentley T models from VIN 4448.
However, please be aware that Left Hand Drive cars from 1968 to 1973 (approx) were fitted with a different starter motor. If your car falls in this VIN range please arrange to send it to us for overhaul.

The relevant chassis numbers are as follows:
Standard Cars: 4448-4548, 5086-5603, 6425 - 8861, 9001 - 14847 except 14815
Coachbuilt Cars: 5070 - 5141, 6450 - 8694, 9040 - 14995 except 14780, 14831, 14885
LWB Cars: 6599 - 8697, 9067 - 14896
On the SZ models it is suitable up to the following VINs:
Silver Spirit & Mulsanne VIN 24496
Silver Spur VIN 24503
Bentley Eight VIN 24497
Turbo R VIN 23935
Mulsanne S VIN 24501

1989 Model Year cars after these VINs were fitted with a similar Nippon Denso starter motor but with only two mounting bolts. See UE71223