Independent China procurement coordinationPrepare your parts list

The wheel-end buying guide

Dill Air Controls wheel-end buying guide

Dill Air Controls independently coordinates sourcing from China. Start with the catalog if you know the part family, or send your measurements if you already have a drawing or sample reference.

Path 01

Browse product lines

Identify the ring, weight, valve or TPMS hardware. Compare part families by their mating surfaces and kit contents before requesting a quote.

Open Catalog
Path 02

Submit a sourcing brief

Send the drawing revision or OE cross reference, quantities by item, requested checks and the destination. Note which dimensions still need verification.

Start an RFQ

Write the brief in three steps

  1. 01

    Identify the interface

    Record ring OD, ID and height in mm. For weights, name the rim flange shape and material. For TPMS service parts, give the sensor reference, rim opening and valve stem style.

  2. 02

    Make the quotes comparable

    Quote the same drawing revision, material, pack unit and quantity per SKU. A single supplier may simplify consolidation. Separate suppliers can cover more sizes but require tighter item labeling and packing reconciliation.

  3. 03

    Ask for a check you can repeat

    Give the measurement points, tolerance and sample quantity. For a ring, check both mating diameters and that the chamfer clears the hub radius. For a weight, use the agreed flange profile and retention check method.

Common decisions before you order

It can denote a nominal 66.6 mm wheel bore and 57.1 mm hub pilot when the vendor writes OD first. Ask for the drawing to verify dimension order, tolerances, ring height and chamfer. If either interface is unknown, measure the mating parts before ordering.

A listed kit can be efficient if its stem, seal and hardware fit the identified sensor and rim. If a clamp-in design uses a different seal or hardware stack, request a drawing and sample for that configuration. Ask the supplier to identify which components and installation instructions are included.

Compare the issuer, date and stated scope. An IATF 16949 or ISO 9001 certificate, where provided, addresses a quality management system. For a product requirement, separately request the relevant SKU evidence, test method and applicable market scope. List any unresolved documentation as an open quotation item.