Supplier records
Ask who produced the quoted part, which site is listed and which drawing revision applies.
Eibach fitment & specs
Eibach wheel fitment and specs desk
Use this specification desk to prepare a wheel procurement RFQ and identify evidence to request during supplier verification.
Send your specPrepare your RFQ
- Vehicle or OE number with axle and revision
- Nominal sizes, tolerances and interface geometry
- Quantity, destination port and target market
What to measure and what to verify
Use millimetres for mating dimensions and state the units for load, pressure and mass. Write down the drawing revision and sample identifier with each measured result.
| Part or decision | Input to quote | Check before release |
|---|---|---|
| Hub centric ring | Ring outer diameter (wheel center bore), ring inner diameter (hub pilot), step height, chamfer, material and finish. | Measure bore and pilot at several angular positions away from the chamfer. On the representative wheel and hub, check shoulder clearance and flush seating without force. |
| Aluminum or polymer | Alloy or polymer grade, service temperature, moisture exposure, specified dimensional limits. | Compare dimension and removal condition after the buyer's defined service exposure. Surface finish and actual compound affect the result. |
| Clip-on wheel weight | Mass in grams, rim flange profile, clip opening, wheel material, coating and clearance. | Measure mass on a calibrated scale, then check sample seating and retention on the agreed flange section. Record coating marks and the method used. |
| Tire valve and TPMS | Valve-hole diameter, seat shape and thickness, stem angle, pressure range and sensor interface. | Check component clearance and the seal stack on the specified wheel. Have the designated test party use the agreed leak-check method and pressure. |
| Fastener interface | Thread diameter and pitch, usable length, seat profile, surface finish and vehicle application. | Verify engagement and seat contact against the mating drawing. The buyer's assembly instruction governs torque and installation. |
| Wheel assembly | Pitch circle diameter (PCD), wheel offset (ET), center bore, rim diameter and width, load rating, finish and market. | With mounting faces clean and the assembly fixtured as agreed, record radial runout and lateral runout separately. Compare with the buyer's specified limits. |
| Hub or bearing kit | OE cross reference, vehicle or VIN-derived fitment, hub flange dimensions, ABS encoder ring, bearing bore, OD and width. | Check sensor compatibility, seal lip orientation, hardware scope and bearing preload requirements against the application-specific installation record. |
| Stock or custom ring | Compare the stocked drawing and its tolerance, material and finish with the custom proposal. Ask both suppliers to quote sample cost, tooling and minimum per size separately. | On the same representative mating parts, check the full seating and ring removal of each sample. The buyer decides whether the difference justifies a new drawing and sampling cycle. |
Evidence before commitment
Sample check
Use the part identifier, gauge, condition and acceptance limit in the buyer's inspection brief.
Document scope
Review IATF or ISO quality system scope at supplier level. For any product standard, verify applicability to the SKU and destination before requesting proof.
Independent results
Link third-party reports to tested samples and the stated method. A report on one geometry gives no result for an untested revision.
Buyer-approved exceptions
Record the open limit, alternative proposed and release authority. Carry the decision into the repeat-order brief.
Shipment identity
Match the approved identifiers to the carton label and packing list by lot. Record any mixed batches separately.