Audi A4 A5 A8 Heater Blower Motor Resistor 8K0820521B

Designed for aftermarket HVAC supply programs, this heater blower motor resistor supports fan-speed control, cabin airflow adjustment, and replacement inventory planning.

Lead Time:
60 days
Minimum Order:
100
Warranty:
12 Months

Availability:



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Product Description

8K0820521B Heater Blower Motor Resistor Cross Reference

OEM Number
8K0820521B
8K0820521
8K0820521C
JA1734

8K0820521B Heater Blower Motor Resistor Application

Brand	Model	Year
Audi	A4	2009-2012
Audi	A5	2008-2011
Audi	A8	2011-2017
Audi	Q5	2009-2012
Audi	S4	2009-2012
Audi	S5	2008-2012
Audi	S8	2013-2017

8K0820521B Heater Blower Motor Resistor Specifications

Item	Details
Product Type	Heater blower motor resistor / control module
Voltage	12V vehicle HVAC circuit
Function	Controls HVAC blower motor speed and helps restore fan-speed adjustment
Condition	New
Fitment Type	Direct replacement
Quality	100% tested aftermarket replacement

8K0820521B Heater Blower Motor Resistor Aftermarket Supply from Elecdura

Elecdura supplies aftermarket heater blower motor resistor for distributors, repair shops, and automotive parts buyers who need stable wholesale sourcing. Share the OEM number, application details, and product photos so our team can help compare fitment before bulk ordering. Standard MOQ is 100 pcs per model.

8K0820521B Heater Blower Motor Resistor FAQ

Is 8K0820521B the correct replacement number for this heater blower motor resistor?

Compare 8K0820521B with the number printed on the removed heater blower motor resistor. Buyers should also check connector shape, mounting layout, and product appearance before ordering.

What does this heater blower motor resistor do in the HVAC system?

This heater blower motor resistor helps the HVAC fan circuit adjust blower output for normal cabin airflow control.

What symptoms can indicate this part should be replaced?

A4 A5 A8 blower motor speed-control failure; cabin fan only works at one speed, stops at lower speeds, or airflow is intermittent; confirm OE 8K0820521B before aftermarket replacement.

Which applications should buyers check for this SKU?

The checked application set includes Audi A4 2009-2012; Audi A5 2008-2011; Audi A8 2011-2017; Audi Q5 2009-2012; Audi S4 2009-2012; Audi S5 2008-2012. Buyers should match the vehicle family and any listed year, engine range, or platform detail before purchase.

What should be checked before confirming a wholesale order?

Check OEM/interchange number, vehicle application, connector shape, mounting layout, removed-part appearance, voltage, model year before confirming quantity, packaging, and delivery requirements.

How does Elecdura support wholesale orders for this part?

Elecdura supports distributor and repair-shop supply with 100 pcs MOQ per model, neutral or customized packaging, sample checks, and order follow-up before shipment.