Purolator Oil Filter head for Spin On Oil Filter - Could be called a Conversion item, fits DB2 to DBS 6 - All 6 cylinder engines, takes special spin on oil filter with increased wall thickness, etc to cope with high oil pressures associated with 6 cylinder Newport Pagnell engines.

Not to be confused with some spin on oil filter conversion kits which dont flow enough oil on DB4 to DBS 6 engines, according to the filter manufacturers.