Mud Pump Fluid End Section from Japan
The fluid end section of high-pressure mud pumps circulates drilling fluid through offshore platform systems for 8430.41/8430.49 boring machinery (HTS 8431.43.40.00). Contains pistons, valves, and liners exposed to abrasive drilling mud at 5,000+ psi. Exclusive to offshore oil/gas drilling platforms.
Duty Rate — Japan → United States
25%
Rate breakdown
9903.82.0925%Except as provided for in headings 9903.82.16, 9903.82.20–9903.82.26 and 9903.85.68, articles of copper and derivative aluminum and steel articles, as provided for in subdivisions (c)(vi)–(viii) and (xi) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• API 7K monogram required for pressure-containing parts; include liner size/bore specs; provide wear material composition (e.g
• tungsten carbide)