030121004A Automotive Water Pump for AUDI
Product: Automotive Water Pump
Primary OE: 030121004A
Item code: AD01017-018
Cross-reference numbers:
030121004A
030121004B
030121005H
030121005L
030121005LX
030121005LV
Brand: AUDI
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: Confirm whether gaskets or service hardware are required.
030121004A provides a traceable reference for water-pump procurement. This AUDI record identifies SKU AD01017018 through OE evidence. Buyers can therefore separate 030121004A from similar-looking pumps.
Application approval for 030121004A should combine the parts catalogue, VIN and removed component. No single dependable model is published for 030121004A, so the Model filter remains blank for SKU AD01017018.
Product Technical Specifications
| Product type | Automotive Engine Water Pump |
|---|---|
| Primary OE reference | 030121004A |
| Internal item code | AD01017-018 |
| Vehicle brand | AUDI |
| Model filter | Not specified; verify by VIN and original part |
| Cross-reference numbers | 030121004A / 030121004B / 030121005H / 030121005L / 030121005LX / 030121005LV |
| Verification method | OE catalogue, VIN, production data and removed-pump comparison |
Connection Layout Before Installation
Check 030121004A for the correct impeller side, bearing hub and housing geometry. On AD01017018, even a small offset at the gasket surface can prevent a dependable seal.
Place the original unit and AD01017018 in the same orientation. Verify that 030121004A shares the same flange plane, ports, drive interface and sealing profile.
Pre-Purchase Pump Confirmation
Use 030121004A as the first catalogue key, then confirm AD01017018 with the AUDI VIN and production date. An OE match alone is not sufficient when an engine family has mid-cycle changes.
Before approving AD01017018, enter 030121004A in the relevant AUDI parts catalogue. Check engine code, build period and any supersession notes returned by the VIN.
No dependable single model was available for 030121004A, so the Model filter remains empty instead of publishing an assumption.
Coolant Flow Through the Engine
The purpose of 030121004A on undefined vehicles is continuous coolant delivery. Stable flow reduces local hot spots and supports predictable thermostat and radiator operation.
Within the undefined cooling circuit, 030121004A drives coolant through passages, hoses and the radiator. Pump condition therefore affects temperature stability throughout a drive cycle.
Wholesale Identification and Traceability
For a AUDI purchasing review, send 030121004A together with the required volume and shipping country. Quote AD01017018 when discussing carton marks or sample approval.
Wholesale enquiries should state 030121004A, AD01017018, order quantity and destination. AUDI distributors can also request neutral packing, label review and a pre-production sample.
Cooling-System Commissioning
Handle AD01017018 by its housing and protect the gasket face. Follow the specified tightening sequence for 030121004A, refill slowly and confirm heater circulation during bleeding.
Do not install 030121004A into a dirty circuit. Examine AD01017018, renew approved sealing parts and verify free rotation before the engine is started.
Service and Ordering Questions
What does 030121004A do in the cooling system?
OE 030121004A identifies an engine water pump. In the AUDI vehicle cooling circuit, 030121004A circulates coolant between heat-generating and heat-rejecting components.
What fitment review is recommended for 030121004A?
Approve 030121004A with VIN and catalogue data. Match SKU AD01017018 against the removed pump. Production changes can alter 030121004A mounting or drive details.
Which physical details should match on 030121004A?
Compare the 030121004A housing, flange, ports, hub or pulley, impeller side and sealing face. Use the AD01017018 gallery for orientation. Measure 030121004A before installation.
When does the vehicle need a closer inspection of 030121004A?
Inspect 030121004A after coolant leakage, bearing noise, overheating or unstable circulation. During AD01017018 diagnosis, test belts, hoses, thermostat and coolant condition. Do not assume 030121004A is the only cause.
Which purchasing data supports a quote for 030121004A?
Request 030121004A pricing with item code AD01017018. Add quantity, destination and packaging instructions. Send original-part evidence when 030121004A needs application review.
Confirm 030121004A Before Ordering
Send 030121004A quantity and destination to Yongshang Auto. Identify the request with SKU AD01017018. Add packing details and original-pump evidence when 030121004A needs application review.
Application note: 030121004A identifies the reference, not guaranteed fitment. Confirm SKU AD01017018 through VIN, engine data and removed-pump comparison.
