# United States tariff lines under HS 8431.49 > The United States tariff splits HS 8431.49 (parts suitable for use solely or principally with the machinery of headings 8425 to 8430, of machinery of heading 8426, 8429 or 8430: Other) into 24 national lines: 8431.49.10.10 (of machinery of subheadings 8426.11, 8426.19 and 8426.30), 8431.49.10.60 (of mobile lifting frames, straddle carriers and works trucks fitted with a crane), 8431.49.10.70 (of copper or copper alloys), 8431.49.10.80 (other) and 20 others. Every United States line under 8431.49 is free of general (MFN) duty. Source: https://border.bot/countries/united-states/hs-codes/843149 Last updated: 9 October 2026 [Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 84](https://border.bot/countries/united-states/hs-codes/84) / [8431.49](https://border.bot/countries/united-states/hs-codes/843149) ## Key facts - HS subheading: [8431.49](https://border.bot/hs-codes/843149) - Duty (MFN): Free - National lines: 24 - Tariff: [United States](https://border.bot/countries/united-states) - Chapter: 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof ## United States lines under 8431.49 The United States tariff splits HS 8431.49 (parts suitable for use solely or principally with the machinery of headings 8425 to 8430, of machinery of heading 8426, 8429 or 8430: Other) into 24 national lines: 8431.49.10.10 (of machinery of subheadings 8426.11, 8426.19 and 8426.30), 8431.49.10.60 (of mobile lifting frames, straddle carriers and works trucks fitted with a crane), 8431.49.10.70 (of copper or copper alloys), 8431.49.10.80 (other) and 20 others. Every United States line under 8431.49 is free of general (MFN) duty. - [8431.49.10.10](https://border.bot/countries/united-states/hs-codes/8431491010) Of machinery of heading 8426, 8429 or 8430, Other, Of machinery of heading 8426, Of machinery of subheadings 8426.11, 8426.19 and 8426.30. Duty (MFN): free - [8431.49.10.60](https://border.bot/countries/united-states/hs-codes/8431491060) Of machinery of heading 8426, 8429 or 8430, Other, Of machinery of heading 8426, Of mobile lifting frames, straddle carriers and works trucks fitted with a crane. Duty (MFN): free - [8431.49.10.70](https://border.bot/countries/united-states/hs-codes/8431491070) Of machinery of heading 8426, 8429 or 8430, Other, Of machinery of heading 8426, Other, Of copper or copper alloys. Duty (MFN): free - [8431.49.10.80](https://border.bot/countries/united-states/hs-codes/8431491080) Of machinery of heading 8426, 8429 or 8430, Other, Of machinery of heading 8426, Other, Other. Duty (MFN): free - [8431.49.90.05](https://border.bot/countries/united-states/hs-codes/8431499005) Of machinery of heading 8426, 8429 or 8430, Other, Other, Attachments for mounting on machinery, Backhoe attachments. Duty (MFN): free - [8431.49.90.10](https://border.bot/countries/united-states/hs-codes/8431499010) Of machinery of heading 8426, 8429 or 8430, Other, Other, Attachments for mounting on machinery, Front-end loader attachments. Duty (MFN): free - [8431.49.90.15](https://border.bot/countries/united-states/hs-codes/8431499015) Of machinery of heading 8426, 8429 or 8430, Other, Other, Attachments for mounting on machinery, Rippers and rooters. Duty (MFN): free - [8431.49.90.20](https://border.bot/countries/united-states/hs-codes/8431499020) Of machinery of heading 8426, 8429 or 8430, Other, Other, Attachments for mounting on machinery, Other. Duty (MFN): free - [8431.49.90.25](https://border.bot/countries/united-states/hs-codes/8431499025) Of machinery of heading 8426, 8429 or 8430, Other, Other, Other, Parts of coal or rock cutters and tunneling machinery, Cast axle housings. Duty (MFN): free - [8431.49.90.32](https://border.bot/countries/united-states/hs-codes/8431499032) Of machinery of heading 8426, 8429 or 8430, Other, Other, Other, Parts of coal or rock cutters and tunneling machinery, Other, Of copper or copper alloys. Duty (MFN): free - [8431.49.90.34](https://border.bot/countries/united-states/hs-codes/8431499034) Of machinery of heading 8426, 8429 or 8430, Other, Other, Other, Parts of coal or rock cutters and tunneling machinery, Other, Other. Duty (MFN): free - [8431.49.90.35](https://border.bot/countries/united-states/hs-codes/8431499035) Of machinery of heading 8426, 8429 or 8430, Other, Other, Other, Parts of backhoes, shovels, clamshells and draglines, Cast axle housings. Duty (MFN): free - [8431.49.90.36](https://border.bot/countries/united-states/hs-codes/8431499036) Of machinery of heading 8426, 8429 or 8430, Other, Other, Other, Parts of backhoes, shovels, clamshells and draglines, Other, Road wheels. Duty (MFN): free - [8431.49.90.38](https://border.bot/countries/united-states/hs-codes/8431499038) Of machinery of heading 8426, 8429 or 8430, Other, Other, Other, Parts of backhoes, shovels, clamshells and draglines, Other, Wheel and tire assemblies. Duty (MFN): free - [8431.49.90.39](https://border.bot/countries/united-states/hs-codes/8431499039) Of machinery of heading 8426, 8429 or 8430, Other, Other, Other, Parts of backhoes, shovels, clamshells and draglines, Other, Other, Of copper or copper alloys. Duty (MFN): free - [8431.49.90.41](https://border.bot/countries/united-states/hs-codes/8431499041) Of machinery of heading 8426, 8429 or 8430, Other, Other, Other, Parts of backhoes, shovels, clamshells and draglines, Other, Other, Other. Duty (MFN): free - [8431.49.90.45](https://border.bot/countries/united-states/hs-codes/8431499045) Of machinery of heading 8426, 8429 or 8430, Other, Other, Other, Other, Scraper bowls for scrapers of subheadings 8429.30 and 8430.69.01. Duty (MFN): free - [8431.49.90.50](https://border.bot/countries/united-states/hs-codes/8431499050) Of machinery of heading 8426, 8429 or 8430, Other, Other, Other, Other, Track links. Duty (MFN): free - [8431.49.90.55](https://border.bot/countries/united-states/hs-codes/8431499055) Of machinery of heading 8426, 8429 or 8430, Other, Other, Other, Other, Cast axle housings. Duty (MFN): free - [8431.49.90.81](https://border.bot/countries/united-states/hs-codes/8431499081) Of machinery of heading 8426, 8429 or 8430, Other, Other, Other, Other, Other, Steel forgings. Duty (MFN): free - [8431.49.90.84](https://border.bot/countries/united-states/hs-codes/8431499084) Of machinery of heading 8426, 8429 or 8430, Other, Other, Other, Other, Other, Other, Road wheels. Duty (MFN): free - [8431.49.90.90](https://border.bot/countries/united-states/hs-codes/8431499090) Of machinery of heading 8426, 8429 or 8430, Other, Other, Other, Other, Other, Other, Wheel and tire assemblies. Duty (MFN): free - [8431.49.90.92](https://border.bot/countries/united-states/hs-codes/8431499092) Of machinery of heading 8426, 8429 or 8430, Other, Other, Other, Other, Other, Other, Other, Of copper or copper alloys. Duty (MFN): free - [8431.49.90.94](https://border.bot/countries/united-states/hs-codes/8431499094) Of machinery of heading 8426, 8429 or 8430, Other, Other, Other, Other, Other, Other, Other, Other. Duty (MFN): free ## In other countries No other national tariff on border.bot has live lines under 8431.49 yet. - [The Harmonized System text for 8431.49](https://border.bot/hs-codes/843149) - Previous subheading: [8431.43](https://border.bot/countries/united-states/hs-codes/843143) Parts for boring or sinking machinery of subheading 8430.41 or 8430.49 - Next subheading: [8432.10](https://border.bot/countries/united-states/hs-codes/843210) Agricultural, horticultural or forestry machinery for soil preparation or cultivation; lawn or sports ground rollers; parts thereof ## Frequently asked questions ### How many national tariff lines does the United States tariff have under HS 8431.49? The United States tariff splits HS 8431.49 (parts suitable for use solely or principally with the machinery of headings 8425 to 8430, of machinery of heading 8426, 8429 or 8430: Other) into 24 national lines: 8431.49.10.10 (of machinery of subheadings 8426.11, 8426.19 and 8426.30), 8431.49.10.60 (of mobile lifting frames, straddle carriers and works trucks fitted with a crane), 8431.49.10.70 (of copper or copper alloys), 8431.49.10.80 (other) and 20 others. ### What is the duty on HS 8431.49 in the United States? Every United States line under 8431.49 is free of general (MFN) duty. ## Sources and updates The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026. The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026. The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026. This page was last updated on 9 October 2026. Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling. Official source files: - https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false Machine-readable: https://border.bot/countries/united-states/hs-codes/843149.json