4S2820021 Blower Motor for AUDI
Primary OE reference: 4S2820021
Product type: Automotive HVAC Blower Motor
Applicable vehicle: AUDI
Brand: AUDI
Model: Confirm by OE reference
Electrical match: Confirm voltage, plug key and terminal count against the original motor
Motor interface: Compare flange contour, screw spacing and motor-body depth
Fan wheel check: Verify wheel diameter, height and rotation direction before ordering
HVAC function: When the climate-control circuit commands airflow, the electric motor rotates the fan wheel inside the HVAC housing.
Installation guidance: Support the motor during removal, keep wiring clear of the wheel, and test all commanded fan speeds before refitting panels.
Fitment basis: Check voltage, rotation direction, cable exit and the position of every locating tab against the existing blower.
Quotation information: Provide the OE number, vehicle application, quantity and delivery country
4S2820021 Automotive Blower Motor Overview
For cabin heating, ventilation and air-conditioning repairs, 4S2820021 is presented as the primary lookup number.
For catalogue item 6233-093, Stable wheel rotation helps distribute air without relying on vehicle speed, making the 4S2820021 blower important at idle and in traffic. Use 6233-093 when comparing this 4S2820021 airflow configuration.
OE Reference and Application
The primary catalogue number is 4S2820021. The recorded application is AUDI. For 6233-093, Match the 4S2820021 motor body depth, flange shape, connector lock and impeller profile instead of relying on the listed AUDI vehicle name alone. Record 6233-093 with the approved OE reference.
HVAC Interface and 4S2820021 installation
During work on 6233-093, After 4S2820021 installation, operate low through high speed and confirm 4S2820021 airflow reaches the selected vents without abnormal vibration. Recheck 6233-093 before the lower trim is closed.
For item 6233-093, confirm that the 4S2820021 centrifugal wheel clears its housing and that the 6233-093 connector lock engages without force. After seating 6233-093, test the available fan speeds and listen for rubbing, imbalance or intermittent electrical operation linked to 6233-093.
Automotive HVAC Blower Motor Specifications
| Product type | Automotive HVAC Blower Motor |
|---|---|
| Primary OE reference | 4S2820021 |
| Cross-reference numbers | 4S2820021 |
| Vehicle brand | AUDI |
| Vehicle model | Confirm by OE reference |
| Model year | Confirm by OE reference |
| 4S2820021 installation area | Cabin HVAC / heater blower housing |
| Main interfaces | Electrical connector, mounting flange and centrifugal fan wheel |
| Fitment method | OE-number and physical-geometry comparison |
Quality and Trade Supply
For product 6233-093, Packing preparation accounts for the 4S2820021 motor weight and wheel shape to reduce movement inside the carton. The 6233-093 record remains the picking reference.
For trade item 6233-093, To reduce selection errors, include the original-part photograph and connector view with the purchase list. Keep 6233-093 on the packing instruction.
Frequently Asked Questions
How should item 6233-093 and blower number 4S2820021 be verified?
Match 6233-093 to the complete 4S2820021 marking, then compare the 6233-093 plug, terminal count, mounting flange and wheel dimensions with the removed AUDI unit.
Can 6233-093 have more than one vehicle-side blower configuration?
Yes. AUDI production changes can affect 6233-093; confirm steering position, climate-control specification and the original 6233-093 geometry before approval.
What circuit checks are useful when 6233-093 does not operate?
For 6233-093, inspect the fuse, relay, speed resistor or controller, wiring and ground before replacing the 6233-093 motor again.
Which details should accompany a wholesale request for 6233-093?
Provide item 6233-093, OE 4S2820021, the stated application, quantity and destination; add 6233-093 carton or private-label requirements separately.
How can noise be avoided after fitting 6233-093?
Clear debris from the air inlet, check that the 6233-093 wheel turns freely, seat the 6233-093 flange evenly and keep wiring away from the impeller.
Request a quote for 6233-093: Send 4S2820021, the 6233-093 application and required quantity for a fitment and supply review.




