U.S. imports of transmission shafts, camshafts, crankshafts, and cranks (HS 848310) totaled $207.9M in August 2026, imported from 76 countries.
Importers of Transmission Shafts, Camshafts, Crankshafts, and Cranks paid $27.4M in duties in August 2026, an effective tariff rate of 13.19% of the $207.9M imported — duty actually collected as a share of that value, not the published tariff schedule.
Last updated: August 2026 dataCamshafts and crankshafts for spark-ignition engines destined for Chapter 87 vehicles represent the highest-value segment of this heading and are further subdivided by engine displacement and vehicle type across multiple 10-digit lines, reflecting the automotive industry's dominance of US import demand. Germany and Japan are the leading suppliers, consistent with their roles as major sources of powertrain components for vehicles assembled in North America; Canada and Mexico also supply significant volumes under USMCA-integrated production arrangements. The heading also covers general transmission shafts and cranks not specific to automotive engines (8483105000), which serve industrial machinery, marine, and aerospace applications. Section 301 tariffs apply to Chinese-origin shipments, and importers should confirm whether a shaft is presented as a finished component or as a forging blank, as the latter may classify differently under Chapter 72 or 73.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
9.9K shipments/mo
A crankshaft forging blank that has not yet been machined to final dimensions may classify under Chapter 72 or 73 as a steel forging rather than under 8483.10, which covers finished or semi-finished transmission shafts. CBP's essential character analysis focuses on whether the article is already dedicated to its end use by shape and machining. Importers should obtain a binding ruling if the degree of processing is ambiguous, as misclassification between chapters carries significant duty and penalty risk.
The correct 10-digit line depends on engine type (spark-ignition vs. compression-ignition), vehicle chapter applicability (Chapter 87 vs. other), and engine displacement where relevant. Importers should retain the manufacturer's technical specification sheet, the vehicle or equipment application list, and the engine displacement rating. For automotive OEM supply chains, the vehicle model and engine family documentation from the assembler typically provides sufficient evidence for CBP review.
HSChapter 84
Subheading 3 of 7 in heading 8483
Subheading 848310 · $207.9M of $937.4M
ImportsExports
Imports
$207.9MYoY · free account
Exports
$231.1MYoY · free account
12-mo low · imports
YoY · free accountOver the twelve months to August 2026, the U.S. imported $2.3B of Transmission Shafts, Camshafts, Crankshafts, and Cranks.
Through August 2026. Source: U.S. Census Bureau.
Trade Directory
List your company under HS 848310 — Transmission Shafts, Camshafts, Crankshafts, and Cranks, so the companies trading it can find you. Be the first supplier listed.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 8483105000 | Transmission Shafts and Cranks, NESOI | $95.2M | 16.89% | 62.43% | $16.1M |
| 8483101030 | Cam/Crankshaft F Spark Ign Eng F Vehicles of Ch 87 | $54.5M | 5.19% | 68.24% | $2.8M |
| 8483103050 | Camshafts and Crankshafts, NESOI | $24.8M | 13.75% | 97.40% | $3.4M |
| 8483103010 | Cam/Crankshafts for Vehicles of Chapt 87, NESOI | $24.7M | 11.26% | 89.97% | $2.8M |
| 8483101050 | Camshafts and Crankshafts, F Spark Ign Eng, NESOI | $8.1M | 26.25% | 97.89% | $2.1M |
| 8483101010 | Camshafts and Crankshafts for Motorcycles | $615K | 31.00% | 103.84% | $191K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Imports · August 2026
origin
China pays 42.0% duty; Japan 6.0%.
customs district
destination
entry
rate provision · imports
22.1% enters free of duty; duty collected equals 13.19% of total import value.