Most people seem to get differently numbered filters from dealer as there are several different size filters NH offers with the same specs. 87415600 does not cross (NAPA/Wix 2005 catalog), but the older 1530/1630/1725/1925 filters cross to the NAPA Gold 1521 (21521 silver). Other filters with the same specs (3/4-16 threads 8-11 lb by-pass setting/ with anti drainback valve/ approx 2.7-2.85" seal OD/), but different can sizes are the 1348 (21348), 1515 (21515), 1516 (21516), 1335, 1068 (21068) and others. The 1515 is the standard older Ford, older Toyota trucks filter, the 1516 is the tall skinny Ford, the 1068 is older Chrysler, short large OD Ford, older Toyotas, the 1348 fits lots of older/current Japanese vehicles such as Lexus, Toyota,Suzuki, some Saabs, Harley Davidson, Saturn, Briggs & Stratton, Farm & lawn equip, even Yugo. The 1521 listed as the replacement for the 1925 fits Nissan fork lifts, New Holland , Porsche, Nissan trucks, Alfa Romeo, ect ect. Know of several people who have used these filters for years without problem.