Our SM 2000 has the standard Onan 6.5 KW generator, Model MDKAL42401 and the Volvo Penta (Perkins) TMD22. We have always purchased filters and impellers from Amel in Guadaloupe, but we are currently in the US. Is there a supplier in the US where we can get impellers and fuel filters for each (the NAPA oil filters seem to be fine)? Bill on S/V Lady Sadie