Volvo Penta MD31 and AD41 Air Filter.
This is a service item for some MD31 and AD41 Volvo Penta Diesels.
These engines are fitted with either part number 858488 or 21646645.
To tell the difference, for a AD31 or 41 series which may use either part, part number 858488 has a screw on air filter cover and 21646645 has a clip on cover.
Volvo Penta Part No: 858488
For Volvo Penta Diesel Engines: AD41A, AQAD41A, AQD41A, D41A, TAMD41A, TMD41A, MD31A, MD31B, AD41B, AD41D, AD41L-A, AD41P, AD41P-A, AQAD41B, D41B, D41L-A, TAMD41B, TAMD41D, TAMD41H-B, TAMD41M, TAMD41P, TAMD41P-A, TAMD41P-HD, TAMD42WJ-A, TMD41B, TMD41D, TMD41L-A, TMD41P-A, D41D, TAMD41H-A, TAMD41P-B, AD31B, AD31D, AD31L-A, AD31P-A, AQAD31B, TAMD31B, TAMD31D, TAMD31D-CE, TAMD31L-A, TAMD31P-A, TAMD31S, TMD31B, TMD31L-A, TAMD31M, TAMD31P-B, TMD31D
Alternative part number for 150mm type, Part Number 2164664541