(a)
Whoever knowingly imports, exports, or attempts to import or export—
(1)
any motor vehicle, off-highway mobile equipment, vessel, aircraft, or part of any motor vehicle, off-highway mobile equipment, vessel, or aircraft, knowing the same to have been stolen; or
(2)
any motor vehicle or off-highway mobile equipment or part of any motor vehicle or off-highway mobile equipment, knowing that the identification number of such motor vehicle, equipment, or part has been removed, obliterated, tampered with, or altered;
shall be fined under this title or imprisoned not more than 10 years, or both.