Mercruiser Impeller CMD QSD D4,2

MerCruiser impeller with O-ring – original spare part

The impeller should be replaced regularly according to the engine manual. The impeller wears out with use and can dry out over time. A poor-quality impeller can prevent the engine from cooling properly, which can lead to overheating.

Note: Only suitable for diesel engines with Sherwood seawater pump . Always check this even if your engine serial number is listed below (see exploded view).

OEM number: 8M0056956

Fits the following engines (according to serial number):

3.0L VM V6

• 230 V6 IB: serial number 70388501 ?

• 270 V6 IB: serial number 70388501 ?

• 150 V6 SD: serial number 70380001 ?

• 230 V6 SD: serial number 70380001 ?

• 270 V6 SD: serial number 70380001 ?

CMD QSD 4.2

• NO 270: 88400000 – 88400999

• NO 320: 88405000 – 88416999

• NO 350: 88416000 – 88416999

• ES 270: 88401000 – 88404999

• ES 320: 88406000 – 88415999

• ES 350: 88417000 – 88419999

* For 3.0L VM V6 engines, does not fit TDI V6 engines or D3.0L VM inline engine (5-cylinder).

Older D4.2L D-Tronic & CMD engines: use part number 82069 .