Guangzhou Sineiver Rolls Out Heater Blower Resistor for Audi A6 C6

When HVAC airflow drops in an Audi A6 C6, the blower resistor is often the culprit. Guangzhou Sineiver now supplies a direct-fit replacement—OEM 4F0820521A/4F0910521A—priced US$20-28 with 1-year warranty. The part is ready for shipment within 7-15 days.

At a Glance

As the Audi A6 C6 generation surpasses two decades on the road, the secondary market for HVAC components is expanding rapidly. Independent garages and parts distributors in Europe, the Middle East, and beyond are sourcing reliable, budget-friendly alternatives to OEM dealers. Guangzhou Sineiver’s latest offering targets this niche, delivering a precise match for the 4F0820521A-series resistor.

Buyer Benefits:

• Direct fit for Audi A6 C6 (2004–2011) – no modifications needed
• High-quality construction ensures long service life
• 12V standard voltage matches OEM specifications
• One-year warranty backs every unit
• Competitive pricing at US$20–28 per piece

Product Description

This blower regulator replaces the original Audi part numbers 4F0820521A, 4F0820521, 4F0910521, and 4F0910521A. Operating at 12V, it restores multi-speed control to the cabin fan. Each unit is supplied brand new and ready to install.

Installation is straightforward for any qualified technician. The resistor’s connector matches the factory wiring, and its housing dimensions (packaged at 15×15×15 cm) are identical to the genuine component.

• Corrects fan-only-on-high-speed faults
• High-quality materials for extended service life
• Stringent quality checks before shipping
• Single-pack format suits retail and workshop shelves

Applications

The SINEIVER blower resistor is designed exclusively for the Audi A6 C6 platform, covering saloon and Avant body styles from model years 2004 to 2011. It is suitable for vehicles where the heater blower motor operates intermittently or fails to respond to speed adjustments.

Typical symptoms indicating a failed resistor include:

• Fan only works on certain speed settings
• No airflow from vents regardless of fan setting
• Blower motor runs continuously even with system off

Typical Sourcing Timeline

Buyers and procurement managers can expect the following milestones when ordering this component from Guangzhou Sineiver. While specific lead times may vary, the standard delivery period is 7–15 days after order confirmation.

1. Inquiry and Sample RFQ: Provide the OEM number and desired quantity to receive pricing and sample availability.
2. Order Confirmation: A proforma invoice is issued detailing product specifications, unit price, and total cost.
3. Production and QC: The supplier prepares the order from stock or schedules production, followed by thorough quality inspection.
4. Packaging and Shipping: Each unit is packaged in a 15×15×15 cm carton weighing 1 kg, then shipped via the agreed method.
5. Receiving: Goods arrive typically within 7–15 days, subject to destination and customs clearance.

Company Profile

Guangzhou Sineiver Auto Parts Trading Co., Ltd. operates from Guangdong, China, serving the global aftermarket with a diverse portfolio. Its product categories span suspension, coolant, braking, body parts, and engine systems. The SINEIVER brand emphasizes OEM-compatible quality for independent repair shops and auto part distributors.

CTA

For current stock availability, volume pricing, or sample orders, reach out to Guangzhou Sineiver with the OEM reference 4F0820521A. Their export team supports international logistics and trade documentation.

Disclaimer

The information provided is based on supplier data and is intended for B2B trade reference only. Always confirm fitment by VIN and consult the latest spec sheet before bulk purchasing. Delivery estimates are indicative and may be affected by external factors such as shipping route disruptions or customs delays.

Related product: Heater Blower Motor Fan Resistor Manufacturer - For Audi A6 C6 2004-2011 4F0910521 4F0820521 4F0910521A