OIL PUMP- 850/998/1098- A PLUS- SLOT DRIVE
GLP139 - OIL PUMP 1000CC A PLUS SLOT DRIVE
3 Bolt hole fixing pump for A plus 998cc engines. This has a spade type drive spindle to fit the slot in the camshafts .This replaced earlier peg type drive which fitted into camshafts with a pin(known as pin drive).
Alternate part numbers: CAM4577, AHU1050 & AOP105