Oil filters for engine lubrication systems; oil filters for engines; air filters being parts of engines; air filters being parts of machines; air filters for automobile engines; air filters for commercial vehicles; air filters for engines; air filters for motorcycle engines; air filters for motors; air filters for trucks; filters (parts of machines or engines); filters being parts of engines; filters being parts of engines for cleaning air; filters being parts of engines for cooling air; filters being parts of machines; filters being parts of motors; filters for cleaning cooling air (for engines); filters for cleaning the lubricating oils in engines; filters for dust for use with internal combustion engines; filters for gases (machines); filters for hot gases for use with internal combustion engines; filters for internal combustion engines; fuel filters; grease filters (parts of machines); oil filters for engine lubrication systems; oil filters for engines