Sourcing starter motor armatures from China
Starter motor armatures from China carry 2% UK duty under the other-parts line, subject to confirming classification. Confirm the applicable replacement-part safety requirements and importer responsibilities with the relevant product-safety authority. Specify shaft fit, windings and commutator dimensions before ordering. Cambridge China Bridge sources starter motor armatures.
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UK duty on starter motor armatures
Read from the UK Trade Tariff on 30 September 2026, heading 8511 covers engine ignition and starting equipment, generators used with those engines, and their parts. The supplied tariff has no separate armature line. For a finished starter motor armature supplied separately, check the other-parts line, 8511 90 00 90, against the product drawing and intended use.
That parts line carries 2% duty for goods from China. The supplied tariff records no anti-dumping or countervailing measure, suspension or attached import control on it. The separate commutator and specified drive end shield lines also carry 2%. These neighbouring rows help distinguish an armature assembly from components ordered separately.
The complete starter motor line has a suspension limited to a specified motor-generator design; it does not describe a standalone armature. Confirm the commodity code before shipment. For the wider heading, see starter motor solenoids.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Other starting-equipment parts, including starter motor armatures | 8511 90 00 90 | 2% | None |
| Separate starter motor commutators meeting the listed specification | 8511 90 00 30 | 2% | None |
| Related drive end shields meeting the listed specification | 8511 90 00 20 | 2% | None |
| Complete starter motors and starter-generators, for comparison | 8511 40 00 90 | 2% | None |
Specify the armature against the starter
Give the factory the starter model, application cross-reference, approved sample and dimensioned drawing. Specify shaft length, bearing journals, splines, shoulders, lamination stack and commutator diameter and position. Agree winding conductor material, winding arrangement, insulation system and balancing acceptance criteria. State whether the purchase is a wound assembly or includes additional fitted components.
Ask for test results tied to the actual armature design. Agree winding continuity, insulation and shaft runout checks, then test sample armatures in the intended starter for current draw, speed and torque. A matching vehicle cross-reference alone does not establish mechanical fit.
Worked duty example
Illustrative example, not a quote: 600 starter motor armatures, illustrative order under 8511 90 00 90, invoiced at £12,000 free on board, with £600 of freight and insurance to the UK. The customs value is £12,600. Duty at 2% is £252. Import VAT at 20% is charged on the customs value plus duty, £12,852, so it is £2,570.40. Import taxes total £2,822.40; a VAT-registered importer can usually reclaim the VAT, so the lasting cost is the £252 of duty. The import duty and VAT guide explains each step.
Inspection checklist
Fit: measure shaft journals, splines, shoulders and commutator position against the drawing; trial-fit samples in the intended starter.
Windings: check continuity, insulation to the shaft and core, winding retention and soldered or welded commutator connections against agreed acceptance criteria.
Commutator and rotation: check surface finish, segment security and runout; review balance results and test assembled starters for rubbing, vibration and abnormal current draw.
Packing and identity: check part references and batch identity, protect journals and commutators from impact and corrosion, and sample across cartons at inspection.
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What goes wrong
An armature can resemble the approved sample yet have a misplaced shoulder or commutator, causing poor brush contact or rubbing. Loose winding connections, damaged insulation and insecure segments can produce intermittent faults or overheating. Keep a retained sample and compare failed units with the drawing and recorded test results.
The official vehicle aftermarket safety code assigns its responsibilities to an independent importer where imported aftermarket parts have a potential safety defect. Agree a complaint investigation process with the supplier and retain batch-to-customer records so affected armatures can be identified.
Cambridge China Bridge sources these products for UK businesses, checking the factory and the documents before shipment. See factory verification. For components and parts, see sourcing for manufacturers.
Frequently asked questions
What is the UK import duty on starter motor armatures from China?
The supplied tariff records 2% on other parts under 8511 90 00 90, with no anti-dumping or countervailing measure or suspension. Confirm that this line fits the armature you are importing.
Which commodity code covers a starter motor armature?
Check 8511 90 00 90 for an armature supplied separately as a starter motor part. A separate commutator or a complete starter has a different line; classify the actual goods supplied.
What should I send the Chinese armature factory?
Send the starter model, application cross-reference, dimensioned drawing and approved sample. Specify shaft interfaces, commutator position, windings, insulation and the tests used to accept the goods.
How do I test replacement starter motor armatures?
Check dimensions, winding continuity, insulation and runout against agreed criteria. Fit samples in the intended starter and measure current draw, speed and torque; inspect for rubbing and vibration.