Oil cooler assembly (no gaskets) 320/A4173 JCB Dieselmax, aftermarket

Oil cooler assembly (no gaskets) 320/A4173 is an aftermarket part for the JCB Dieselmax 444 and 448 engines. The card also lists 320/04147. The assembly comes without gaskets, which are chosen separately.

The oil cooler assembly is a cast aluminium cover with a plate-type cooler inside, bolted to the side of the block. Oil flows inside the cooler and coolant around it to exchange heat; the assembly also carries the oil filter mounting. An internal leak mixes oil and coolant, and a cracked body leaks outwards. Because the oil filter mounts on the assembly, it is easy to check it for leaks at each filter change. The assembly is cast aluminium and brings the oil and coolant passages together in one body. The assembly bolts to the side of the block.

Specifications

Compatibility

The part is listed for JCB 3CX and 4CX backhoe loaders. The catalogue also has the genuine version of this part. Cover gasket: oil cooler cover gasket 320/04113. Other parts are in JCB Dieselmax engine.

Fitting

Clean old gasket off the block face. Renew the oil filter with the new assembly and check oil pressure on first start. The coolant mixture must follow the JCB recommendation. Check the gaskets are correctly placed before fitting.