078121006 Automotive Water Pump for AUDI A6
Product: Automotive Water Pump
Primary OE: 078121006
Item code: AD01017-021
Cross-reference numbers:
078121006
078121004Q
078121004J
078121004H
078121004HX
078121004QX
078121004HV
078121004JV
078121004JX
078121006X
078121018B
078121019B
078121019F
Brand: AUDI
Model: A6
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: Private-label and neutral packing can be reviewed for B2B orders.
078121006 supports OE-led sourcing of a replacement coolant pump. This AUDI A6 record identifies SKU AD01017021 through OE evidence. Buyers can therefore separate 078121006 from similar-looking pumps.
Application approval for 078121006 should combine the parts catalogue, VIN and removed component. The workbook provides A6 as a model reference, but SKU AD01017021 still requires vehicle-specific confirmation.
Product Technical Specifications
| Product type | Automotive Engine Water Pump |
|---|---|
| Primary OE reference | 078121006 |
| Internal item code | AD01017-021 |
| Vehicle brand | AUDI |
| Model filter | A6 |
| Cross-reference numbers | 078121006 / 078121004Q / 078121004J / 078121004H / 078121004HX / 078121004QX / 078121004HV / 078121004JV / 078121004JX / 078121006X / 078121018B / 078121019B / 078121019F |
| Verification method | OE catalogue, VIN, production data and removed-pump comparison |
Why Pump Integrity Matters
For the undefined application, 078121006 is the mechanical link that keeps coolant travelling through the engine and heat exchanger. Consistent circulation helps the system control operating temperature.
078121006 belongs in the undefined coolant-circulation path. Its task is to move heat-laden coolant toward the radiator while the engine is running.
Visual Identification Points
A correct 078121006 replacement should sit naturally at every mounting point. Compare AD01017021 for casting shape, impeller clearance and accessory connections before workshop use.
Measure the pulley or drive location, mounting depth and port orientation on 078121006. Use the gallery to pre-screen AD01017021, then confirm dimensions on the physical sample.
Aftermarket Stock Planning
To price 078121006, provide the AUDI vehicle evidence, order volume and destination port. Reference AD01017021 for traceable communication from sample to shipment.
Purchasing teams should put AD01017021 on the enquiry and retain 078121006 on approval records. State the AUDI application evidence, target quantity and labelling requirements.
Service Diagnosis and Pump Replacement
Rotate AD01017021 by hand and inspect the hub, casing and sealing face for transit damage. Commission 078121006 with the vehicle maker’s coolant mixture and bleeding sequence.
Installation quality affects the service life of 078121006. Clean mating surfaces, avoid sealant excess and verify that AD01017021 operates without belt misalignment or coolant loss.
Matching the Pump to the Vehicle
Screen 078121006 through the AUDI application catalogue and verify the vehicle’s production information. Treat AD01017021 as an internal traceability code, not a substitute for VIN confirmation.
A reliable AUDI match starts with 078121006 and ends with physical comparison. Use the VIN and engine code to decide whether AD01017021 has the correct configuration.
The workbook names A6 as an application clue for 078121006; vehicle-specific catalogue evidence still governs the final match.
Buyer Questions About This Water Pump
What does 078121006 do in the cooling system?
OE 078121006 identifies an engine water pump. In the AUDI A6 cooling circuit, 078121006 circulates coolant between heat-generating and heat-rejecting components.
What fitment review is recommended for 078121006?
Approve 078121006 with VIN and catalogue data. Match SKU AD01017021 against the removed pump. Production changes can alter 078121006 mounting or drive details.
Which physical details should match on 078121006?
Compare the 078121006 housing, flange, ports, hub or pulley, impeller side and sealing face. Use the AD01017021 gallery for orientation. Measure 078121006 before installation.
Which service signs are relevant to 078121006?
Inspect 078121006 after coolant leakage, bearing noise, overheating or unstable circulation. During AD01017021 diagnosis, test belts, hoses, thermostat and coolant condition. Do not assume 078121006 is the only cause.
How is a B2B quotation prepared for 078121006?
Request 078121006 pricing with item code AD01017021. Add quantity, destination and packaging instructions. Send original-part evidence when 078121006 needs application review.
Request a 078121006 Wholesale Quote
Send 078121006 quantity and destination to Yongshang Auto. Identify the request with SKU AD01017021. Add packing details and original-pump evidence when 078121006 needs application review.
Catalogue notice: 078121006 identifies the reference, not guaranteed fitment. Confirm SKU AD01017021 through VIN, engine data and removed-pump comparison.
