Join Date: Aug 2009
Location: Roaring Fork Valley, Colorado
Chances are the filter will fit. However, without the manufacture's name it is not possible to cross reference. Most 4 cylinder 105 series 1300, 1600 and 2000 filters work. Bruce Taylor's book "Alfa Romeo Montreal The Essential Companion" has a list of filters on page 81 that work on the Montreal, including many Fram filters (HP 1, PH8A, PH16, TG16, XG16 and PH2941}, AC Delco (PF-20) and Purolator (L20081, L20017 and L20020).