Part number for reference: GCB10838. This fits A+ engines with 4.75″ wide water pump pulley and an alternator. Mainly used on 998 but will also fit 1275.
CLASSIC MINI FAN BELT / AUXILIARY BELT GCB10813 - PRE 1985 MODELS
Classic Mini Fan Belt DYNAMO GCB10813 drive morris cooper austin 998 1275 early
CLASSIC MINI FAN BELT GCB10825 ALTERNATOR DRIVE MORRIS AUSTIN 998 1275 ROVER 5D7
Classic Mini Fan Belt GCB10838 alternator drive rover austin 998 1275 cooper spi
Classic Mini - Fan Belt (825mm) GCB10825
Classic Mini Fan Belt GCB10825 alternator drive morris austin 998 1275 cooper