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Shop Now with Confidence
Order Today - We Ship Worldwide
Secure Checkout
Search by OEM Code
SKU: BKHBFNH OEM:4F5807521
Item for sale: Rear bumper spoiler diffuser 4F5807521. Sedan version for Audi A6 C6 (2004). Model years: 2004-2011. Condition as shown in the photo. Compare the part in the picture with your part before purchasing.
Yes. All AutoRiven parts are used original OEM parts. We do not sell aftermarket parts or replicas.
Compatibility should be verified using the OEM reference number. You can also contact us before purchasing with your VIN, make, model, engine, and year, and our team will assist you.
AutoRiven sells used OEM automotive parts only.
Product information is based on visual inspection, available technical data, photos, and supplier information at the time of listing. Due to the nature of used automotive parts, not all components can be fully functionally tested before shipment.
Yes. All parts include a 30-day commercial warranty from the date of delivery, covering functional defects only. This commercial warranty does not affect or replace the consumer’s statutory rights under EU conformity law.
Estimated delivery time is 2–10 business days depending on destination. Express shipping may be available on request and typically takes 24–72 hours.
We accept secure payments via Stripe Checkout, including credit and debit cards, PayPal, Apple Pay, Google Pay, Klarna, Revolut Pay, and other local methods depending on your country.
Returns are accepted only if the item is defective or damaged, an incorrect item was supplied, or the product does not match the description. Used automotive parts are vehicle-specific and individually identified items and are excluded from the 14-day right of withdrawal under EU Directive 2011/83/EU.
Some electronic components may require coding or programming by a qualified technician after installation.
Yes, we ship internationally. Any customs duties, import taxes, or local charges required by the destination country are the customer’s responsibility.
If you can’t find a part on the website, contact us with the OEM code or the vehicle VIN. We’ll check availability and reply before you place an order.
Find Your PartYour order is in good hands. AutoRiven shipments are handled via trusted international couriers such as FedEx, UPS, DHL, DPD, GLS, Raben, Hellmann, Geodis, and AmberExpress. Every shipment is trackable until delivery.
Browse additional OEM parts from the same vehicle brand, offering similar fit and compatibility for your repair needs.
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