Heavy Duty Air Filter (2001-2006)
This is the OEM Mann heavy duty filter that fits all T1N Sprinters from 2001-2006 with the om611, om612, and om647 I-5 engines.
If you have ASSYST, it is the required filter.
If you do not have ASSYST, it provides an extra foam layer of filtering over the regular duty Sprinter air filter.
Recommended change interval: Every other oil change / 20,000 miles.