The Cléon-Alu engine, also known under the code "A engine" or "A-Type" (A for aluminium) is an automotive gasoline internal combustion engine, developed and produced by Renault in 1960. A four-stroke inline four-cylinder design with aluminium-alloy block and cylinder head, it was water cooled, with a five main bearing crankshaft and a side-mounted chain-driven camshaft operating eight overhead valves via pushrods and rockers. It made its debut appearance on the Renault 16.

AxK

The AxK displaces 1470 cc from a bore and stroke of 76 x. Applications:

AxL

The AxL displaces 1.6 L, from either 1565 cc, 1596 cc, or 1605 cc. All of these variants share an 84 mm stroke, with bores of 77 ,. Applications:

AxM

The AxM displaces 1647 cc from a bore and stroke of 79 x. It was originally known as the type 841 or 843, depending on output. Often used as a designator for the Renault R17 Gordini sub-model in the USA market 843/13. 82 hp, Compression Ratio 9.25:1 with Bosch L-Jetronic Fuel Injection and standard distributor with points/condenser for timing.