Generator exhaust extension systems consisting primarily of through-wall exhaust vents and ports being machine parts, as well as weld-on exhaust fittings, bolt-on exhaust fittings, exhaust extensions, exhaust risers, magnetic dipsticks, oil drain tubes, and exhaust stacks; Machine parts for use as generator accessories, namely, through-wall exhaust vents and ports, weld-on exhaust fittings, bolt-on exhaust fittings, exhaust extensions, exhaust risers, magnetic dipsticks, oil drain tubes, and ...