1999-2004 Audi A4/A6/S4/S6 Horn - Low Tone / Frequency 4B3951221

OEM Part #: 4B3-951-221 (4B3951221)

$15.49
Used
Donor2001 Audi A4 · 1.8L
SKU: 129893 · 30-Day Returns
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Horn - Low Tone / Frequency 4B3951221 — Used (SKU 129893)
Genuine OEM Used SKU: 129893 Donor Vehicle: 2001 Audi A4 · 1.8L 2 photos
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$15.49
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Horn - Low Tone / Frequency 4B3951221 — Used (SKU 247398)
Genuine OEM Used SKU: 247398 Donor Vehicle: 2001 Audi A6 · 4.2L 2 photos
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$15.49
30-Day Returns
Horn - Low Tone / Frequency 4B3951221 — Used (SKU 308286)
Genuine OEM Used SKU: 308286 Donor Vehicle: 2000 Audi A4 · 1.8 2 photos
TESTED
$15.49
30-Day Returns
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A used OEM Audi Horn - Low Tone / Frequency, part number 4B3951221, also superseding 4A0951221C. This is the lower-pitched horn from a factory dual-horn setup. When the low-tone horn fails, you'll often hear a weak or single-note sound from the front of the car instead of the full, two-tone Audi horn blast.

Specifications

Specifications for Horn - Low Tone / Frequency 4B3951221
Fits Vehicle ModelA4, A6, S4, S6
Fits Vehicle MakeAudi
OEM Part No4B3-951-221 (4B3951221)
Compatible OEM Part No 4A0-951-221-C
CategorySiren / Horn

Compatible Vehicles

Fits 30 vehicle configurations across 1 make, 1999-2004.

Check your specific vehicle before ordering. This list shows year, make, and model. Some years have multiple trims or engines that use different parts, and individual listings may have additional fitment notes (e.g. “with sunroof only”). Review the full variant list below, or message us with your VIN and we’ll confirm the match.

Audi

  • A4 1999-2001 · 18 variants
  • A6 2000-2004 · 5 variants 3 with notes
  • S4 2000-2002 · 5 variants
  • S6 2002-2003 · 2 variants 2 with notes
View all 30 vehicle configurations — 5 with fitment notes
Full vehicle fitment list for Horn - Low Tone / Frequency 4B3951221
Year Make Model Trim Engine Note
1999 Audi A4 Sedan 1.8L l4 Turbo
2000 Audi A4 Sedan 2.8L V6
2000 Audi A4 Quattro Wagon 2.8L V6
2001 Audi A4 Quattro Sedan 2.8L V6
2001 Audi A4 Sedan 2.8L V6
2000 Audi A4 Quattro Sedan 1.8L l4 Turbo
2001 Audi A4 Quattro Wagon 2.8L V6
2001 Audi A4 Quattro Wagon 1.8L l4 Turbo
1999 Audi A4 Quattro Wagon 1.8L l4 Turbo
1999 Audi A4 Quattro Sedan 1.8L l4 Turbo
2001 Audi A4 Quattro Sedan 1.8L l4 Turbo
1999 Audi A4 Sedan 2.8L V6
2000 Audi S4 Sedan 2.7L V6 Turbo
2001 Audi S4 Wagon 2.7L V6 Turbo
2001 Audi A6 Quattro Sedan 4.2L V8
1999 Audi A4 Quattro Wagon 2.8L V6
2000 Audi A6 Quattro Sedan 4.2L V8
2002 Audi S6 Wagon 4.2L V8 For S Line Only
2002 Audi S4 Wagon 2.7L V6 Turbo
2000 Audi A4 Quattro Sedan 2.8L V6
2002 Audi S4 Sedan 2.7L V6 Turbo
2004 Audi A6 Quattro Sedan 4.2L V8 For S Line Only
2001 Audi S4 Sedan 2.7L V6 Turbo
2003 Audi A6 Quattro Sedan 4.2L V8 For S Line Only
1999 Audi A4 Quattro Sedan 2.8L V6
2003 Audi S6 Wagon 4.2L V8 For S Line Only
2000 Audi A4 Quattro Wagon 1.8L l4 Turbo
2001 Audi A4 Sedan 1.8L l4 Turbo
2000 Audi A4 Sedan 1.8L l4 Turbo
2002 Audi A6 Quattro Sedan 4.2L V8 For S Line Only

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