How do I confirm pilotpart851731-9291597119736 fits my machine?

Compare the OEM or reference part number, machine model, engine model, and serial number. You can also submit a fitment inquiry before ordering.

In Stock

Engine Coolant Expansion Tank 4G0121403D for Audi A6 A7 Quattro 2012-2018 RS7 2014-2018 S6 S7 2013-2018

For Audi Service Tank

Service Tank pilotpart851731 for Audi s: Fit for Audi

OEM / REF: pilotpart851731SKU: pilotpart851731-9291597119736

Engine Coolant Expansion Tank 4G0121403D for Audi A6 A7 Quattro 2012-2018 RS7 2014-2018 S6 S7 2013-2018 is a Service Tank replacement part for Audi Seals, Filters & Maintenance Parts, categorized under Seals, Filters & Maintenance Parts > Service Tank. Use OEM part number pilotpart851731 and confirm machine model, e...

Stock: In stock
Condition: New
Fitment: Audi Seals, Filters & Maintenance Parts
Category: Service Tank

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$39.00USD/EA

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Nov 10 – Nov 17
10	Nov 8 – Nov 15
50	Nov 6 – Nov 13

Estimates from today; confirm exact lead time before payment.

Quantity

Confirm fitment before ordering →

Lead times can vary by freight route and customs. Contact support for expedited shipping.

Service Tank Description

This Service Tank is indexed for Audi s: Fit for Audi. Compare reference number pilotpart851731 against the label on your existing Audi component before ordering.

Before checkout, compare OEM part number pilotpart851731, connector layout, mounting position, and machine serial number. For high-value or fitment-sensitive parts, submit the fitment form below so support can verify the match.

Part Numbers and Cross References

pilotpart851731

Applications

Audi s: Fit for Audi

Fitment Notes

Brand or application signal: Audi Seals, Filters & Maintenance Parts
Product family: Service Tank
System category: Seals, Filters & Maintenance Parts > Maintenance Components > Service Tank
Recommended verification: OEM number, engine model, serial number, old part photos, and dimensions.

Shipping & Returns

Availability: InStock
Shipping: Shipping quotes can be confirmed before payment for heavy or urgent orders.
Returns: Returns are easier when fitment is confirmed before ordering.
B2B support: Bulk, fleet, and repair-shop requests can be handled through the inquiry form.

Frequently Asked Questions

How do I confirm this part fits my machine?

Match the OEM or reference number first, then verify machine model, engine model, serial number, connector layout, mounting points, and old part photos.

Can I order if my part number is not listed?

Yes. Send the old part number, machine plate, and photos through the fitment inquiry form. Support can review possible replacements or alternatives.

Is this an OEM part?

Products are indexed as replacement parts unless explicitly marked otherwise. Always compare reference numbers and confirm fitment before purchase.