Exhaust gas treatment systems for diesel engines; exhaust silencers for engines; exhaust system oxygen sensors being parts of internal combustion engines; vehicle parts, namely, intake manifolds; vehicle engine parts, namely, charge air coolers and their component parts; vehicle engine parts, namely, crankcase breathers; vehicle engine parts, namely, intercoolers; vehicle engine parts, namely, oil coolers; vehicle engine parts, namely, oil tank plugs and caps; vehicle engine parts, namely, oil tanks; vehicle engine parts, namely, push rods; vehicle engine parts, namely, rocker arms; automotive parts, namely, engine seals; carburetters; engine exhaust tips; fuel injector parts for land and water vehicle engines; heat exchangers being parts of engines not for land vehicles; intake and exhaust air flow vane assembly device for use in an internal combustion engine; internal combustion engines land vehicle parts, namely, coils; internal combustion engines land vehicle parts, namely, distributor caps; internal combustion engines land vehicle parts, namely, distributor rotors; internal combustion land vehicle engine parts, namely, connecting rods; land vehicle parts, namely, spark plug wires; mechanical engine parts for land vehicles; particulate air filters for exhaust systems for internal combustion engines; silencers as part of vehicle exhaust systems; silencers as part of vehicle exhaust systems; vehicle parts, namely, cam covers; vehicle parts, namely, carburetors; vehicle parts, namely, engine cam protectors; vehicle parts, namely, engine cases; vehicle dip sticks; gas turbine engines not for land vehicles and replacement parts; headers as part of vehicle exhaust system; headers as part of vehicle exhaust system; sub-micron fuel filters for diesel exhaust fluid