The new A series engines were added to the range as a running change.

Perhaps the most interesting variety of A series engines was the AY12 engine.

Both the 71 and 92 series engines were popularly used in on-highway vehicle applications.

The apex of the Austin-derived engines was the new design A series engine in 1967.

They were in turn replaced by the 385 series engines.

Air accident investigators called for this component on the Trent 800 series engine to be redesigned in 2009.

The 645 series engines entered production in 1965.

The original 128 and 138 series engines originally used a single down-draught carburettor.

Due to emissions requirements, the 300 series engines were eventually retired.

Since entering service in 1980, more than 2,900 of the -200 series engines have been produced.