Dill Air Controls · China sourcing desk
Dill Air Controls wheel-end parts sourcing
Send a size list, an OE reference, or a sample description. We help buyers compare China suppliers for hub centric rings, clip-on wheel weights, tire valves and TPMS service parts.
01 / Parts to source
Which part are you buying?
Clip-on wheel weights
Flange profile and mass
Tire valves
Rim opening and stem type
TPMS service kits
Sensor and kit contents02 / Fitment notes
Two ways to write a usable parts line
| Input | Hub centric ring | Clip-on wheel weight |
|---|---|---|
| Fitment | Wheel center bore for ring OD and hub pilot for ring ID, both in mm. | Wheel material and flange profile, with a reference drawing or photo. |
| Quote unit | Pieces per OD/ID pair, with ring height and material specified. | Pieces per mass in grams, with clip type, material and coating specified. |
| Sample review | Check bore and pilot dimensions and whether the ring seats on the mating surfaces. | Review seating and retention against the agreed rim profile using the buyer's sample plan. |
A ring dimension pair alone does not establish wheel fitment. Where the wheel itself changes, confirm PCD, offset (ET), center bore and load rating with the wheel supplier.
03 / How sourcing moves
Four checkpoints from brief to packing list
- 01
Clarify the spec
Resolve missing dimensions, units and application details before sending the RFQ.
- 02
Compare quotations
Match the same drawing, pack unit and named trade term across replies.
- 03
Review samples
Record the revision, checks and approval owner before bulk order decisions.
- 04
Reconcile packing
Check carton labels, item counts and export documents with the parties handling dispatch.
04 / Buyer programs
Start with the way you buy
Distribution
Build a dimension matrix for repeat orders by SKU.
Service networks
Match valve hardware to the sensor and wheel interface.
Fleet purchasing
Break out part quantities by wheel platform.
Online catalogs
Keep ordered sizes aligned with the published listing.
Import procurement
Compare supplier quotes on the same packing and delivery basis.
Mixed lines
List rings, clips and valve kits on separate RFQ rows.
Scroll the buyer cards to see more.
Rev.Drawing and part revision
SKUSupplier document scope
LotSample and packing reference
PortNamed trade-term location
05 / Questions before an RFQ
Get the details in the right order
A hub centric ring fills the difference between a wheel's center bore and the hub pilot in a compatible setup. A ring described as 66.6 to 57.1 typically lists a nominal 66.6 mm outer diameter and 57.1 mm inner diameter. Check the supplier's dimension order and drawing before quoting.
A listed size is worth comparing when it matches both mating diameters, seating geometry and the required material. Custom sourcing can address a different height or chamfer, with drawing review and sample approval added to the schedule. Availability, MOQ and timing depend on the supplier and SKU.
Ask for the issuer, scope, date, applicable part or site, and the drawing revision where relevant. A supplier quality-system certificate and a test report answer different questions. Match each document to the SKU, requirement and destination rules before relying on it.
Have a size list to compare?
Share the quantities per size, your target market and the named destination. Flag any measurements you still need to confirm.