Cummins QSB4.5 Diesel Engine from Japan
The Cummins QSB4.5 is a 4.5-liter compression-ignition diesel engine delivering up to 130 kW, designed for industrial and marine applications. It falls under HTS 8408.90.90.10 as a diesel piston engine not exceeding 149.2 kW, excluding automotive or aircraft uses. Classified here due to its power output and non-road vehicle application.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Verify engine power rating with manufacturer specs to confirm <149.2 kW classification
• Obtain EPA or CARB certificates for emissions compliance to avoid customs delays
• Include detailed invoices specifying diesel type and end-use to prevent misclassification as automotive parts