Horn for BMW E21 320i M10 1.8L

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Horn not working? We have replacement horns for your BMW at Turner Motorsport.
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Hella HELLA Supertone Horn Set
Not plug and play. Will require modification to install.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Hella - Corporate Logo
T#:378394
Part#: 003399801
In Stock
$ 47.99 USD
Free Shipping on orders $49 and up
$ 47.99 USD
Free Shipping on orders $49 and up
Dual tone electric horn kit to let the world know where you are
Hella Accessory Horn Kit
Not direct replacement horn. Modifications may be necessary.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Hella - Corporate Logo
T#:367309
Part#: UN6628500
In Stock at Vendor
$ 49.99 USD
Free Shipping on orders $49 and up
$ 49.99 USD
Free Shipping on orders $49 and up
Dual tone electric horn kit to let the world know where you are
High Tone Sports Horn Kit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
PIAA - Corporate Logo
T#:26038545
Part#: 85112
Ships on Jun 26, 2026
$ 77.69 USD
Free Shipping on orders $49 and up
Enhance your BMW's safety with PIAA's attention-grabbing Sports Horns, ensuring that you're noticed on the road. These powerful horns emit a loud 115 decibels at 2.7 amps each, featuring a 500Hz and 600Hz combination for maximum effectiveness. With their lightweight design and weather-resistant covers, installation is a breeze, allowing you to announce your presence with style and confidence.
  • Powerful 115-decibel output for enhanced safety
  • Lightweight design for easy installation
  • Weather-resistant covers for durability
  • Stylish addition to your BMW's exterior
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