17 11 7 573 781 Coolant Expansion Tank for BMW

17 11 7 573 781 offers a traceable reservoir option for aftermarket supply. This BMW record identifies SKU BM01015004 by OE evidence. Buyers can therefore separate 17117573781 from similar-looking reservoirs.

Treat cross references as identification aids rather than automatic interchange approval. For 17117573781, no unverified model is published. The blank model filter protects SKU BM01015004 from unsupported fitment claims.

Product Technical Specifications

Product type: Coolant Expansion Tank

Primary OE reference: 17 11 7 573 781

Internal item code: BM01015-004

Vehicle brand: BMW

Model filter: Not specified; verify by VIN and original part

Cross-reference numbers: 17 11 7 573 781 / 17 13 7 787 039

Fluid Storage and Circuit Support

OE 17117573781 identifies a coolant expansion tank for the BMW engine cooling circuit.

Inside that circuit, 17117573781 provides reserve volume for thermal expansion and returns coolant as the system cools.

SKU BM01015004 must keep coolant available without external leakage.

After installing 17117573781, observe level stability and connection dryness.

Visual Identification Points

Place 17117573781 beside the removed tank before installation.

On SKU BM01015004, compare cap neck, hose ports, level-sensor provision, mounting tabs and shell seams.

Every 17117573781 connection should align without body stress.

Review 3 square images showing SKU BM01015004 from available angles.

Final approval of 17117573781 still requires physical measurement.

B2B Procurement Notes

Use 17117573781 as the principal purchasing reference.

Pair 17117573781 with internal item code BM01015004.

For SKU BM01015004, state quantity, destination and label requirements.

AutoParts can review 17117573781 samples and export cartons.

BMW distributors may request BM01015004 packing confirmation before shipment.

Material and Port Inspection

Inspect 17117573781 before transferring service hardware.

Reject SKU BM01015004 if ports, seams or brackets are damaged.

Keep 17117573781 sealed against workshop dust before installation.

During BM01015004 replacement, bleed the cooling circuit correctly and inspect every joint at operating temperature.

If coolant staining, pressure loss, brittle plastic or recurring low-level warnings continues, test the circuit around 17117573781.

Compatibility Checks for Distributors

Begin 17117573781 verification with the complete OE reference.

Compare SKU BM01015004 against the original BMW reservoir.

For 17117573781, record VIN, production date and catalogue conditions.

Cross references can locate BM01015004; they cannot guarantee interchange.

The model field for 17117573781 stays blank without dependable evidence.

Common Procurement Questions

What role does 17 11 7 573 781 perform in a BMW vehicle?

OE 17117573781 identifies the coolant expansion tank. In the BMW system, 17117573781 provides reserve volume for thermal expansion and returns coolant as the system cools.

How is compatibility established for 17 11 7 573 781?

Approve 17117573781 with VIN and production data. Match SKU BM01015004 directly against the removed tank. Regional changes can alter 17117573781 connection geometry.

Which connection details identify 17 11 7 573 781?

On 17117573781, examine cap neck, hose ports, level-sensor provision, mounting tabs and shell seams. Use the BM01015004 gallery for orientation. Confirm 17117573781 dimensions on the vehicle.

Which leakage signs should be checked around 17 11 7 573 781?

Inspect 17117573781 when the vehicle shows coolant staining, pressure loss, brittle plastic or recurring low-level warnings. During BM01015004 diagnosis, test nearby hoses, seals and sensors. Do not treat 17117573781 as the only possible cause.

How can buyers start sample approval for 17 11 7 573 781?

Request 17117573781 pricing with item code BM01015004. Add quantity, destination and packaging instructions. Send original-part evidence when 17117573781 needs application review.

Request a 17 11 7 573 781 Wholesale Quote

Send 17117573781 quantity and destination to AutoParts. Identify the request with SKU BM01015004. Add packing details and original-part evidence when 17117573781 needs application review.

Vehicle check: 17117573781 identifies the reference, not guaranteed fitment. Confirm SKU BM01015004 through VIN, chassis and removed-part comparison.

Application reference: BMW OE-reference application; confirm by VIN and removed-part comparison.

Supply note: Share the expected vehicle mix so carton and stock planning can be reviewed.