Caterpillar 3406E Diesel Engine
The Caterpillar 3406E is a 14.6L inline-6 compression-ignition diesel engine rated at 500 kW, commonly used in heavy-duty trucks and industrial applications. It falls under HTS 8408.90.90.30 due to its power output exceeding 373 kW but not exceeding 746 kW and classification as an other diesel engine not for vehicles or marine use.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If designed for motor vehicles
Engines principally for propelling motor vehicles of Chapter 87 fall under 8408.20, regardless of power rating.
If exceeding 746 kW
Higher power output shifts classification to the next power band subheading within the same engine type.
If imported as complete generating set
Diesel engines sold with generators as packaged power units are classified in heading 8502 as generating sets.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Verify engine power rating with manufacturer's spec sheet for exact subheading fit; obtain EPA emissions certification for US import; ensure proper documentation of industrial end-use to avoid vehicle engine classification
Related Products under HTS 8408.90.90.30
Cummins QSX15-G9 Industrial Diesel Engine
Cummins QSX15-G9 is a heavy-duty 15L diesel engine delivering 415 kW for industrial power generation and oilfield equipment. Classified under HTS 8408.90.90.30 as a compression-ignition engine in the 373-746 kW range, excluding marine or vehicle-specific designs.
Detroit Diesel Series 60 14L Engine (500 hp)
The Detroit Diesel Series 60 14L engine at 373 kW (500 hp) is used in stationary power applications and heavy equipment. It qualifies for HTS 8408.90.90.30 as a diesel piston engine in the specified power bracket for non-vehicle, non-marine use.
Volvo D16 Industrial Diesel Engine 600 kW
Volvo D16 is a 16L inline-6 diesel engine rated at 600 kW for industrial and power generation uses. Falls under HTS 8408.90.90.30 for compression-ignition engines between 373-746 kW excluding propulsion applications.
MTU 12V2000 Diesel Generator Drive Engine
MTU 12V2000 series engine at 550 kW drives generators in standby power systems. Classified in HTS 8408.90.90.30 as an industrial diesel engine within the 373-746 kW power spectrum.
Perkins 4006D-E70TA2 Industrial Engine
Perkins 4006D-E70TA2 8.7L engine produces 450 kW for industrial applications like compressors. HTS 8408.90.90.30 applies to this compression-ignition piston engine in the designated power range.