028121004 Automotive Water Pump for AUDI A4
Product: Automotive Water Pump
Primary OE: 028121004
Item code: AD01017-006
Cross-reference numbers:
028121004
028121004V
028121004X
028121019A
Brand: AUDI
Model: A4
Application reference: AUDI OE-reference cooling-system application; confirm by VIN and removed-part comparison.
Inspection focus: housing profile, mounting flange, impeller or drive interface, ports, gasket face and connector where fitted
Supply note: Include inspection criteria with the quotation request.
028121004 is recorded for direct comparison with the removed pump. This AUDI A4 record identifies SKU AD01017006 through OE evidence. Buyers can therefore separate 028121004 from similar-looking pumps.
Application approval for 028121004 should combine the parts catalogue, VIN and removed component. The workbook provides A4 as a model reference, but SKU AD01017006 still requires vehicle-specific confirmation.
Product Technical Specifications
| Product type | Automotive Engine Water Pump |
|---|---|
| Primary OE reference | 028121004 |
| Internal item code | AD01017-006 |
| Vehicle brand | AUDI |
| Model filter | A4 |
| Cross-reference numbers | 028121004 / 028121004V / 028121004X / 028121019A |
| Verification method | OE catalogue, VIN, production data and removed-pump comparison |
Cooling-System Cleanliness Requirements
Prepare the cooling system before installing 028121004: remove debris, inspect the thermostat and confirm hose condition. Recheck AD01017006 for seepage after the first heat cycle.
Workshop acceptance of AD01017006 should cover bearing feel, flange runout and undamaged ports. Once 028121004 is fitted, monitor temperature, coolant level and unusual noise.
Practical Water Pump Comparison
Set 028121004 beside the removed pump and compare the housing outline, bolt pattern and gasket seat. The 3 AD01017006 gallery images provide viewing references, but measurements remain decisive.
Inspect AD01017006 at every installation interface: flange holes, coolant ports, hub position and sealing face. Reject the match if 028121004 requires forced alignment.
Matching the Pump to the Vehicle
Confirm AD01017006 against the removed AUDI unit rather than relying on appearance alone. Reference 028121004, the build date and catalogue remarks should agree before ordering.
For AD01017006, review the complete AUDI OE chain around 028121004. Superseded numbers may identify the same service family, but mounting and drive details still require confirmation.
The workbook names A4 as an application clue for 028121004; vehicle-specific catalogue evidence still governs the final match.
Export Packing and Sample Approval
Importers sourcing 028121004 can identify the item internally as AD01017006. Add annual demand, packaging preference and delivery terms so the AUDI quotation is comparable.
For export supply of 028121004, identify AD01017006 and specify carton, label and inspection expectations. A AUDI sample can be reviewed before the production batch is released.
Water Pump Function Across Driving Cycles
028121004 provides circulation for the undefined engine-cooling network. Its output must remain steady as engine speed and thermal load change.
028121004 is catalogued for an undefined thermal-management application. The pump creates the circulation needed to carry engine heat into the radiator air stream.
Common Procurement Questions
What does 028121004 do in the cooling system?
OE 028121004 identifies an engine water pump. In the AUDI A4 cooling circuit, 028121004 circulates coolant between heat-generating and heat-rejecting components.
What fitment review is recommended for 028121004?
Approve 028121004 with VIN and catalogue data. Match SKU AD01017006 against the removed pump. Production changes can alter 028121004 mounting or drive details.
Which physical details should match on 028121004?
Compare the 028121004 housing, flange, ports, hub or pulley, impeller side and sealing face. Use the AD01017006 gallery for orientation. Measure 028121004 before installation.
Which service signs are relevant to 028121004?
Inspect 028121004 after coolant leakage, bearing noise, overheating or unstable circulation. During AD01017006 diagnosis, test belts, hoses, thermostat and coolant condition. Do not assume 028121004 is the only cause.
How should a purchasing team identify 028121004?
Request 028121004 pricing with item code AD01017006. Add quantity, destination and packaging instructions. Send original-part evidence when 028121004 needs application review.
Contact Yongshang Auto About 028121004
Send 028121004 quantity and destination to Yongshang Auto. Identify the request with SKU AD01017006. Add packing details and original-pump evidence when 028121004 needs application review.
Technical caution: 028121004 identifies the reference, not guaranteed fitment. Confirm SKU AD01017006 through VIN, engine data and removed-pump comparison.
