Sourcing hydraulic filter elements from China
Hydraulic filter elements from China carry 0% UK duty under the replacement-parts line reviewed, with no trade remedies recorded. Workplace products must meet applicable safety duties, including safe-use information. Specify filtration performance and housing fit together. Cambridge China Bridge sources hydraulic filter elements.

UK duty on hydraulic filter elements
Heading 8421 covers filtering and purifying machinery for liquids or gases and its parts. Replacement cartridges are usually classified as parts; 8421 99 90 99 is the other-parts line to check for hydraulic replacement elements. The rows distinguish applications sharing that code, rather than separate tariff subdivisions. Loose filter media can fall outside this heading.
Read from the UK Trade Tariff on 4 October 2026, all lines supplied for this heading carry 0% duty for goods from China. The supplied data records no anti-dumping or countervailing duty, suspensions or attached import controls. Import VAT at 20% still applies.
Confirm the commodity code using the element drawing, materials, intended housing and whether the shipment contains an element or a complete filter assembly. For the wider filtration heading, see compressed-air filter elements.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Replacement hydraulic pressure-line filter elements | 8421 99 90 99 | 0% | None |
Specify filtration performance and housing fit
Give the factory the housing model, element drawing and an approved sample. Specify overall dimensions, end-cap shape, seal position and material, flow direction, filter media and support-core construction. State the hydraulic fluid, operating temperature, flow conditions and allowable pressure drop. Identify whether the bypass valve belongs to the element or the housing.
Ask for filtration-efficiency, dirt-holding and collapse-resistance reports for the exact construction ordered. A micron description alone does not establish equivalent performance. Agree the test method and acceptance criteria with your equipment engineer, and control substitutions of media, adhesive and seals.
HSE explains that, where more specific product safety law does not apply, workplace articles are subject to general safety duties so far as reasonably practicable. These include necessary testing or examination and information for safe use. Ask for installation, compatibility and replacement instructions alongside the test evidence.
Worked duty example
Illustrative example, not a quote: Illustrative order: 1,000 replacement hydraulic filter elements under 8421 99 90 99, invoiced at £8,000 free on board, with £2,000 of freight and insurance to the UK. The customs value is £10,000. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £10,000, so it is £2,000. With no duty, the only import tax is the VAT, which a VAT-registered importer can usually reclaim. The import duty and VAT guide explains each step.
Inspection checklist
Fit: compare dimensions, end caps and seal seating with the approved drawing; trial-fit samples in the intended housing.
Construction: check pleat consistency, bonded seams, support cores and end-cap adhesion against the approved sample.
Cleanliness: inspect for loose fibres, metal swarf, adhesive debris, corrosion and damaged media; check protective wrapping on arrival.
Identity: match element and carton labels to the part number, batch and agreed application. Keep inspection records linked to the batch; see quality inspection.
What goes wrong
An element can fit the housing but use different media or a weaker support core. A copied cross-reference or matching dimensions cannot establish filtration performance. Resolve differences between the sample, drawing and test report before shipment.
Wrong seals can leak or deteriorate in the intended fluid. Poor bonding can release debris, while damaged packaging can contaminate clean elements. Agree how suspect batches will be isolated and investigated before distributing replacement stock.
Cambridge China Bridge sources these products for UK businesses, checking the factory and the documents before shipment. See factory verification.
Frequently asked questions
What is the UK import duty on hydraulic filter elements from China?
The supplied tariff data records 0% duty for replacement parts under 8421 99 90 99, with no anti-dumping or countervailing duty. Import VAT at 20% still applies.
What commodity code do hydraulic filter elements use?
Check 8421 99 90 99 for replacement filtering-machinery parts. Confirm against the construction and application; loose media and complete assemblies need separate classification checks.
Can I order using a replacement part number alone?
Use the part number with a drawing, approved sample, housing details and performance reports. Matching dimensions alone does not establish equivalent filtration or collapse resistance.
What should I check when hydraulic filter elements arrive?
Check housing fit, seals, bonded seams, media damage, cleanliness and batch labels. Compare sampled elements with the approved construction and retain records for any disputed batch.