The Toyota F1 and N1 oil filters are THE best oil filters for your 4AGE engines! These filters fit all 4age variants, 7age, 5sfe, 3sge, 1zzfe, and 2zzge. The stock filter size for 4age's is the N1 filter which is shorter than the F1. The F1 adds more volume and filtering capacity so we highly recommend using them if there is clearance to fit. Please use the drop down menu to select the correct filter for your application and our price is for (1) filter.