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Details
| Specification | Value |
|---|---|
| Brand | AIC |
| Voltage [V] | 12 V |
| Diameter [mm] | 150 mm |
| Number of pins | 2 -pin connector |
OE/OEM numbers (11)
Search by this OE number to find compatible parts
- AUDI / VAG / VW—4L1 820 021
- AUDI / VAG / VW—4L1 820 021A
- AUDI / VAG / VW—4L1 820 021B
- AUDI / VAG / VW—7L0 820 021
- AUDI / VAG / VW—7L0 820 021D
- AUDI / VAG / VW—7L0 820 021H
- AUDI / VAG / VW—7L0 820 021L
- AUDI / VAG / VW—7L0 820 021Q
- PORSCHE—955 572 342 00
- PORSCHE—955 572 342 01
- PORSCHE—955 572 342 02
Where this part fits
Original-fit position for OE 4L1820021B. The red ring marks where this part installs on the vehicle.
About this product
Sourced from AIC, this interior blower (54278) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications — Voltage [V]: Zinc V, Diameter [mm]: 150 mm, Left-/right-hand drive vehicles: Steel, Vehicle Equipment: 0, Rotation Direction: 0 — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Verified to fit AUDI, PORSCHE, VW models. All compatibility data is cross-checked against the TecDoc database — select your vehicle to confirm the part matches your specific engine and year. This part supersedes original equipment references: 002-60-15793, 003-022-0001, 0599.1191, 069412321010 and 72 more. Matching these numbers confirms a like-for-like replacement with no loss of function. AIC is a recognised supplier of automotive replacement components to independent workshops and dealer networks across Europe. All parts are sourced from authorised distribution channels and carry full manufacturer traceability — you receive exactly the same component supplied to professional garages and dealer workshops. If fitment or specifications do not match your vehicle, our technical team can help identify the correct alternative — use the vehicle selector or contact us with your VIN for a guaranteed-fit recommendation. Replacing worn components on schedule preserves your vehicle's safety, reliability, and resale value — and aftermarket parts from established brands deliver OEM-equivalent performance at a fraction of the dealer price. Every part is dispatched from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.
Suitable cars
Equivalent products (70)
Show all 70 OE numbers
Interior Blower AIC 54278 — compatible car models
| Car models | AUDI: Q7 (4LB), Q7 Van (4LB); PORSCHE: CAYENNE (92A), CAYENNE (9PA); VW: AMAROK (2HA, 2HB, S1B, S6B, S7A, S7B, AGD), AMAROK Platform/Chassis (S1B, S6B, S7B), TOUAREG (7LA, 7L6, 7L7), TOUAREG (7P5, 7P6) |
|---|---|
| Engines | 3.0 TDI quattro; 3.0 Diesel; 3.0 TDI; 2.0 BiTDI; 2.5 R5 TDI; 3.0 V6 TDI |
| Year of manufacture | 2002-2022 |
| Manufacturer article number (MPN) | 54278 |
| OE part numbers | 4L1 820 021, 4L1 820 021A, 4L1 820 021B, 7L0 820 021, 7L0 820 021D, 7L0 820 021H, 7L0 820 021L, 7L0 820 021Q, 955 572 342 00, 955 572 342 01, 955 572 342 02 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
AIC 54278 NEW MOBILITY PARTS. Diameter [mm]: 150 mm. Left-/right-hand drive vehicles: 1. Number of pins: 2 -pin connector. Rotation Direction: 0. Vehicle Equipment: 0. Voltage [V]: 12 V
- 1x Interior Blower
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Express and standard shipping available.
- Standard delivery: 2-5 business days
- Express delivery: 1-2 business days
- Free returns within 14 days
- All parts backed by manufacturer warranty
Warranty: 12-month manufacturer warranty on all parts. 14-day money-back guarantee if the part doesn't fit your vehicle.
Frequently Asked Questions
Is this Interior Blower compatible with my car?
This Interior Blower fits AUDI, PORSCHE, VW vehicles. Use the vehicle selector at the top of the page to check exact compatibility — enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.
What specifications does this AIC Interior Blower have?
This AIC Interior Blower has the following specifications: Voltage [V]: 12 V; Diameter [mm]: 150 mm; Left-/right-hand drive vehicles: 1; Vehicle Equipment: 0; Rotation Direction: 0; Number of pins: 2 -pin connector. Check the full specifications table above for complete details.
What OE part numbers does this Interior Blower replace?
This Interior Blower replaces OE part numbers: 4L1 820 021, 4L1 820 021A, 4L1 820 021B, 7L0 820 021, 7L0 820 021D, 7L0 820 021H, 7L0 820 021L, 7L0 820 021Q and 3 more. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Interior Blower cost?
This AIC Interior Blower is available for £70.99. Interior Blower prices vary depending on brand, specifications, and vehicle compatibility. AIC parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Interior Blower?
Regular inspection of your Interior Blower is recommended as part of routine vehicle maintenance. Watch for changes in performance, unusual noises, or visual signs of wear. Consult your vehicle's owner manual for manufacturer-recommended replacement intervals specific to your make and model.
What tools do I need to replace a Interior Blower?
Tools required vary by vehicle make and model. Generally, a basic socket set, screwdrivers, and vehicle-specific tools may be needed. We recommend consulting a workshop manual for your specific vehicle, or having the Interior Blower fitted by a professional mechanic.
Can I use this part as a replacement for OE 4L1 820 021?
Yes, this AIC Interior Blower is a direct replacement for OE part number 4L1 820 021. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
