# United States tariff line 8431.49.90.55: Cast axle housings > In the United States tariff, line 8431.49.90.55 covers parts suitable for use solely or principally with the machinery of headings 8425 to 8430, of machinery of heading 8426, 8429 or 8430, cast axle housings. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 8431.49 in heading 84.31 (chapter 84). Source: https://border.bot/countries/united-states/hs-codes/8431499055 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) / [8431.49.90.55](https://border.bot/countries/united-states/hs-codes/8431499055) ## Key facts - Tariff line: 8431.49.90.55 - Covers: Parts suitable for use solely or principally with the machinery of headings 8425 to 8430, of machinery of heading 8426, 8429 or 8430, cast axle housings - Duty (MFN): Free - Additional duties: None recorded - Restrictions: None recorded - Tariff: [United States](https://border.bot/countries/united-states) - HS subheading: [8431.49](https://border.bot/hs-codes/843149) ## What this line covers In the United States tariff, line 8431.49.90.55 covers parts suitable for use solely or principally with the machinery of headings 8425 to 8430, of machinery of heading 8426, 8429 or 8430, cast axle housings. Its legal text is “Cast axle housings”, read under “Of machinery of heading 8426, 8429 or 8430”, “Other”, “Other”, “Other” and “Other”. ## How it is structured It falls under HS subheading 8431.49 in heading 84.31 (chapter 84). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff. - Chapter 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof - Heading 84.31: Parts suitable for use solely or principally with the machinery of headings 8425 to 8430 - Subheading 8431.49: Of machinery of heading 8426, 8429 or 8430 - Within the subheading: Other - Within the subheading: Other - Within the subheading: Other - Within the subheading: Other - Line 8431.49.90.55: Cast axle housings ## Duty Goods under this line enter free of general (MFN) duty. The rate is published on 8431.49.90. ## 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) ## Other lines under 8431.49 - [8431.49.10.10](https://border.bot/countries/united-states/hs-codes/8431491010) Of machinery of subheadings 8426.11, 8426.19 and 8426.30 - [8431.49.10.60](https://border.bot/countries/united-states/hs-codes/8431491060) Of mobile lifting frames, straddle carriers and works trucks fitted with a crane - [8431.49.10.70](https://border.bot/countries/united-states/hs-codes/8431491070) Of copper or copper alloys - [8431.49.10.80](https://border.bot/countries/united-states/hs-codes/8431491080) Other - [8431.49.90.05](https://border.bot/countries/united-states/hs-codes/8431499005) Backhoe attachments - [8431.49.90.10](https://border.bot/countries/united-states/hs-codes/8431499010) Front-end loader attachments - [8431.49.90.15](https://border.bot/countries/united-states/hs-codes/8431499015) Rippers and rooters - [8431.49.90.20](https://border.bot/countries/united-states/hs-codes/8431499020) Other - [8431.49.90.25](https://border.bot/countries/united-states/hs-codes/8431499025) Cast axle housings - [8431.49.90.32](https://border.bot/countries/united-states/hs-codes/8431499032) Of copper or copper alloys - [8431.49.90.34](https://border.bot/countries/united-states/hs-codes/8431499034) Other - [8431.49.90.35](https://border.bot/countries/united-states/hs-codes/8431499035) Cast axle housings - [8431.49.90.36](https://border.bot/countries/united-states/hs-codes/8431499036) Road wheels - [8431.49.90.38](https://border.bot/countries/united-states/hs-codes/8431499038) Wheel and tire assemblies - [8431.49.90.39](https://border.bot/countries/united-states/hs-codes/8431499039) Of copper or copper alloys - [8431.49.90.41](https://border.bot/countries/united-states/hs-codes/8431499041) Other - [8431.49.90.45](https://border.bot/countries/united-states/hs-codes/8431499045) Scraper bowls for scrapers of subheadings 8429.30 and 8430.69.01 - [8431.49.90.50](https://border.bot/countries/united-states/hs-codes/8431499050) Track links - [8431.49.90.81](https://border.bot/countries/united-states/hs-codes/8431499081) Steel forgings - [8431.49.90.84](https://border.bot/countries/united-states/hs-codes/8431499084) Road wheels - [8431.49.90.90](https://border.bot/countries/united-states/hs-codes/8431499090) Wheel and tire assemblies - [8431.49.90.92](https://border.bot/countries/united-states/hs-codes/8431499092) Of copper or copper alloys - [8431.49.90.94](https://border.bot/countries/united-states/hs-codes/8431499094) Other - Previous line: [8431.49.90.50](https://border.bot/countries/united-states/hs-codes/8431499050) Track links - Next line: [8431.49.90.81](https://border.bot/countries/united-states/hs-codes/8431499081) Steel forgings ## Frequently asked questions ### What does tariff line 8431.49.90.55 cover in the United States tariff? In the United States tariff, line 8431.49.90.55 covers parts suitable for use solely or principally with the machinery of headings 8425 to 8430, of machinery of heading 8426, 8429 or 8430, cast axle housings. ### What is the general (MFN) duty on 8431.49.90.55 in the United States? Goods under this line enter free of general (MFN) duty. The rate is published on 8431.49.90. ## 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/8431499055.json