078121006 Automotive Water Pump for VOLKSWAGEN PASSAT

078121006 is prepared for fitment screening by repair professionals. This VOLKSWAGEN PASSAT record identifies SKU VM01017007 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 PASSAT as a model reference, but SKU VM01017007 still requires vehicle-specific confirmation.

Product Technical Specifications

Product type: Automotive Engine Water Pump

Primary OE reference: 078121006

Internal item code: VM01017-007

Vehicle brand: VOLKSWAGEN

Model filter: PASSAT

Cross-reference numbers: 078121006 / 078121004 / 078121004H / 078121004HV / 078121004HX / 078121004J / 078121004JV / 078121004JX / 078121004Q / 078121004QX / 78121006

Verification method: OE catalogue, VIN, production data and removed-pump comparison

Component Interface Verification

Check 078121006 for the correct impeller side, bearing hub and housing geometry. On VM01017007, even a small offset at the gasket surface can prevent a dependable seal.

Place the original unit and VM01017007 in the same orientation. Verify that 078121006 shares the same flange plane, ports, drive interface and sealing profile.

Supporting Stable Coolant Movement

The purpose of 078121006 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, 078121006 drives coolant through passages, hoses and the radiator. Pump condition therefore affects temperature stability throughout a drive cycle.

OE Number and Vehicle Verification

Use 078121006 as the first catalogue key, then confirm VM01017007 with the VOLKSWAGEN VIN and production date. An OE match alone is not sufficient when an engine family has mid-cycle changes.

Before approving VM01017007, enter 078121006 in the relevant VOLKSWAGEN parts catalogue. Check engine code, build period and any supersession notes returned by the VIN.

The workbook names PASSAT as an application clue for 078121006; vehicle-specific catalogue evidence still governs the final match.

Leak Prevention and Handling

Handle VM01017007 by its housing and protect the gasket face. Follow the specified tightening sequence for 078121006, refill slowly and confirm heater circulation during bleeding.

Do not install 078121006 into a dirty circuit. Examine VM01017007, renew approved sealing parts and verify free rotation before the engine is started.

B2B Procurement Notes

For a VOLKSWAGEN purchasing review, send 078121006 together with the required volume and shipping country. Quote VM01017007 when discussing carton marks or sample approval.

Wholesale enquiries should state 078121006, VM01017007, order quantity and destination. VOLKSWAGEN distributors can also request neutral packing, label review and a pre-production sample.

Questions Before Sample Approval

What does 078121006 do in the cooling system?

OE 078121006 identifies an engine water pump. In the VOLKSWAGEN PASSAT cooling circuit, 078121006 circulates coolant between heat-generating and heat-rejecting components.

What prevents a wrong-part order for 078121006?

Approve 078121006 with VIN and catalogue data. Match SKU VM01017007 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 VM01017007 gallery for orientation. Measure 078121006 before installation.

Which leakage signs should be checked around 078121006?

Inspect 078121006 after coolant leakage, bearing noise, overheating or unstable circulation. During VM01017007 diagnosis, test belts, hoses, thermostat and coolant condition. Do not assume 078121006 is the only cause.

What information speeds up sourcing of 078121006?

Request 078121006 pricing with item code VM01017007. Add quantity, destination and packaging instructions. Send original-part evidence when 078121006 needs application review.

Review Commercial Supply for 078121006

Send 078121006 quantity and destination to AutoParts. Identify the request with SKU VM01017007. Add packing details and original-pump evidence when 078121006 needs application review.

Application note: 078121006 identifies the reference, not guaranteed fitment. Confirm SKU VM01017007 through VIN, engine data and removed-pump comparison.

Product: Automotive Water Pump

Application reference: VOLKSWAGEN 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.