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Details
| Specification | Value |
|---|---|
| Brand | BOSCH |
| MPN | 0986ah0744 |
| Voltage [V] | 12 V |
| Bore Diameter [mm] | 8.3 mm |
| Operating Mode | PN |
| Power Consumption [W] | 60 W |
| Sound Level [dB(A)] | 110 dB(A) |
OE/OEM numbers (33)
Search by this OE number to find compatible parts
- MERCEDES-BENZ—004 542 56 20
- MERCEDES-BENZ—005 542 20 20
- MERCEDES-BENZ—005 542 25 20
- MERCEDES-BENZ—005 542 28 20
- MERCEDES-BENZ—005 542 33 20
- MERCEDES-BENZ—005 542 35 20
- MERCEDES-BENZ—005 542 42 20
- MERCEDES-BENZ—005 542 74 20
- MERCEDES-BENZ—006 542 01 20
- MERCEDES-BENZ—006 542 07 20
- MERCEDES-BENZ—006 542 90 20
- CHRYSLER—05269 410AB
- AUDI / VW—191951221
- MERCEDES-BENZ—203 542 02 20
- MERCEDES-BENZ—230 542 04 20
- SEAT / SKODA / VW—3B0951221
- VW—40951221
- VW—40951223
- AUDI / VW—4L0951223
- CHRYSLER—5269 410AB
- MERCEDES-BENZ—A 004 542 56 20
- MERCEDES-BENZ—A 005 542 20 20
- MERCEDES-BENZ—A 005 542 25 20
- MERCEDES-BENZ—A 005 542 28 20
- MERCEDES-BENZ—A 005 542 33 20
- MERCEDES-BENZ—A 005 542 35 20
- MERCEDES-BENZ—A 005 542 42 20
- MERCEDES-BENZ—A 005 542 74 20
- MERCEDES-BENZ—A 006 542 01 20
- MERCEDES-BENZ—A 006 542 07 20
- MERCEDES-BENZ—A 006 542 90 20
- MERCEDES-BENZ—A 203 542 02 20
- MERCEDES-BENZ—A 230 542 04 20
Where this part fits
Original-fit position for OE 0045425620. The red ring marks where this part installs on the vehicle.

About this product
The BOSCH Trumpet Horn (0 986 AH0 744) is a professional-grade replacement component engineered for long service life and reliable operation across all conditions your vehicle encounters. The part is built to the following specification: Voltage [V]: Zinc V, Bore Diameter [mm]: Carbon, Cast Iron mm, Operating Mode: PN, Power Consumption [W]: 60 W, Signal: 0. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Verified to fit MERCEDES-BENZ 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: 004 542 56 20, 005 542 20 20, 005 542 25 20, 005 542 28 20 and 39 more. Matching these numbers confirms a like-for-like replacement with no loss of function. BOSCH 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.
About BOSCH
Robert Bosch GmbH, founded in 1886 in Stuttgart, Germany, is one of the world's largest automotive parts suppliers. Bosch specialises in braking systems, fuel injection, spark plugs, alternators, and electronic engine management. As an OE supplier to virtually every major car manufacturer, Bosch parts meet or exceed original equipment specifications. With over 130 years of engineering innovation, choosing Bosch means choosing proven reliability backed by extensive research and development.
Suitable cars
Equivalent products (10)
Trumpet Horn BOSCH 0 986 AH0 744 — compatible car models
| Car models | MERCEDES-BENZ: S-CLASS Coupe (C216), S-CLASS (W221, V221) |
|---|---|
| Engines | CL 500 (216.371); S 250 CDI (221.003, 221.103) |
| Year of manufacture | 2005-2013 |
| Manufacturer article number (MPN) | 0 986 AH0 744 |
| OE part numbers | 004 542 56 20, 005 542 20 20, 005 542 25 20, 005 542 28 20, 005 542 33 20, 005 542 35 20, 005 542 42 20, 005 542 74 20, 006 542 01 20, 006 542 07 20, 006 542 90 20, 05269 410AB, 191951221, 203 542 02 20, 230 542 04 20, 3B0951221, 40951221, 40951223, 4L0951223, 5269 410AB (+13 more) |
Compatibility check
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Please wait while we load vehicle compatibility information.Description and what's included
BOSCH 0986ah0744 . Bore Diameter [mm]: 8,3 mm. Operating Mode: PN. Power Consumption [W]: 60 W. Signal: 0. Sound Level [dB(A)]: 110 dB(A). Voltage [V]: 12 V
- 1x Trumpet Horn
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 Trumpet Horn compatible with my car?
This Trumpet Horn fits MERCEDES-BENZ 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 BOSCH Trumpet Horn have?
This BOSCH Trumpet Horn has the following specifications: Voltage [V]: 12 V; Bore Diameter [mm]: 8,3 mm; Operating Mode: PN; Power Consumption [W]: 60 W; Signal: 0; Sound Level [dB(A)]: 110 dB(A). Check the full specifications table above for complete details.
What OE part numbers does this Trumpet Horn replace?
This Trumpet Horn replaces OE part numbers: 004 542 56 20, 005 542 20 20, 005 542 25 20, 005 542 28 20, 005 542 33 20, 005 542 35 20, 005 542 42 20, 005 542 74 20 and 25 more. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Trumpet Horn cost?
This BOSCH Trumpet Horn is available for £15.99. Trumpet Horn prices vary depending on brand, specifications, and vehicle compatibility. BOSCH parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Trumpet Horn?
Regular inspection of your Trumpet Horn 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 Trumpet Horn?
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 Trumpet Horn fitted by a professional mechanic.
Can I use this part as a replacement for OE 004 542 56 20?
Yes, this BOSCH Trumpet Horn is a direct replacement for OE part number 004 542 56 20. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Is the BOSCH 0 986 AH0 744 the same as the BOSCH 0 328 006 002?
No, while both are Trumpet Horn parts, they are different products. The BOSCH 0 986 AH0 744 has Voltage [V]: 12 V, Bore Diameter [mm]: 8,3 mm, Operating Mode: PN. The BOSCH 0 328 006 002 may differ in dimensions, fitting position, or material composition. Always verify compatibility with your specific vehicle using our vehicle selector, or contact our customer service team for assistance.
