Importers of HS 8407.34 (used or rebuilt) from Korea, South actually paid 15.03% on the taxed portion of the value in 2026-06 — 2.96% across everything shipped, taxed or not. Measured from official duty receipts, not the rulebook: the statutory MFN base rate on this code is 2.5%. Over the window the rate on the taxed portion moved 2.5% → 15.03%, with the largest single step +15.3pp in 2025-05. Measured from official US duty receipts · as-of 2026-06 · confidence: measured, not modelled. The HTS base rate is 2.5% — importers actually paid 15.03%, so the trade-war overlay added 12.5 pts, measured at the border (not a summed rulebook estimate). Reproduce exactly: tariff_story(hs: "8407.34", origin: "Korea, South") · see it at trimtabist.com/tariffs
HS 8407.34. The schedule base rate is 2.5%; importers from South Korea actually paid 15.03% on the dutiable value in 2026-06 — the trade-war overlay added 12.5 points, measured at the border. Measured, not modelled.
Over the window the collected rate moved 2.5% (2023-07) → 15.03% (2026-06), largest single step +15.3pp in 2025-05.
All goods from South Korea · the whole tariff ledger · 2 CBP rulings cite this code · reproduce: tariff_story(hs: "8407.34", origin: "South Korea") via /connect. Not customs or legal advice.