Cummins QSB6.7 Marine Diesel Engine from Mexico
The Cummins QSB6.7 is a 6.7-liter compression-ignition inline diesel engine designed specifically for marine propulsion in workboats and pleasure craft. It features turbocharging and aftercooling for high power output up to 480 hp, with direct fuel injection for efficiency. Classified under HTS 8408.10.00 as a marine propulsion engine due to its primary function to propel vessels via inboard installation.
Duty Rate — Mexico → United States
12.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Obtain EPA Marine CI Label and CARB certification to comply with U.S. emissions standards for commercial vessels
• Include detailed technical specs and installation diagrams proving propulsion intent, not auxiliary power use
• Verify engine serial numbers match manufacturer certificates to prevent valuation disputes on imports