You should be able to get the oil filter anywhere since it is also used on some cars (see below). From Wix online info,
Air Filter: P/N 24245
OIL FILTER:
Part Number: 51356 (NAPA P/N: 1356)
PC Number:765809513563
Principle Application:
Chrysler (92-06), Dodge (92-05), Eagle (92-98), Ford Probe (93-97), Mazda (71-00), Mercury Villager (99-00), Mitsubishi (90-12), Saturn (04-07), Outboard Marine Engines, Various HD Equip.
Style: Spin-On Lube Filter
Service: Lube
Type: Full Flow
Media: Paper
Height: 3.402
Outer Diameter Top: 2.685
Outer Diameter Bottom: Closed:
Thread Size: 20X1.5 MM
By-Pass Valve Setting-PSI: 8-11
Anti-Drain Back Valve: Yes
Beta Ratio: 2/20=6/20
Burst Pressure-PSI: 363
Max Flow Rate: 9-11 GPM
Nominal Micron Rating: 21
Gasket Diameters
O.D. 2.475
I.D. 2.173
Thk. 0.233