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Car Horn

Horn from leading manufacturers

  • BOSCH horn catalogue
  • FEBI BILSTEIN horn catalogue
  • VALEO horn catalogue
  • TOPRAN horn catalogue
  • JP GROUP horn catalogue
  • HELLA horn catalogue
  • VEMO horn catalogue
  • MEYLE horn catalogue
  • BUGIAD horn catalogue
  • HERTH+BUSS ELPARTS horn catalogue
  • FIAMM horn catalogue
  • HPAUTO horn catalogue
  • SIEGEL AUTOMOTIVE horn catalogue
  • DPA horn catalogue
  • YSPARTS horn catalogue
  • ZZVF horn catalogue
  • INTFRADIS horn
  • BOTTO RICAMBI horn
  • AIC horn
  • hajus Autoteile horn

Your Horn worn out? » Read more about common malfunctions • Repair • Replacement manual

Noisy on purpose: the horn

The car horn is a manually operated warning signal for other traffic participants. Its impeccable functioning is relevant for passing MOT. Yet, it should only be used when necessary.

Horn: construction and position

The horn is an electromechanical component. Its construction is as robust as it is simple. This keeps its purchase price low and at the same time ensures a long life span. The horn is fixed to the bodywork with an iron bridge and connected to the onboard circuitry by two contacts. The horn is not grounded via the bodywork. The connection is generally made by way of a pre-fabricated double plug. The car horn is usually located behind the front bumper or alternatively fixed to the radiator grille. The generated noise must be directed conically forward. Changing its direction compromises its effect. The horn has a flexible electrical contact, attached to - or actuated by - a thin metal diaphram. A strong electromagnet, setting a central armature in motion, is connected to the diaphragm. When current is applied to the electromagnet, the armature moves to its mechanical limit, momentarily disconnecting the current supply. As it relaxes back to its starting point, it makes electrical contact again. The procedure is repeated several hundred times per minute, generating the typical sound of a horn.

Horn defects

A horn can fail because of penetrating moisture. When the internal components, like the contact breaker points or copper coils corrode, the horn soon is beyond repair. This is noticed by the fact that it no longer functions at all. If it still produces a croak, repair can be attempted: the horn is equipped with a screw for adjusting the contact breaker point. By turning this screw, the function can be restored.

Car horn repair

If the inner core of a car horn is fully corroded or burnt out as a result of a short circuit, it usually cannot be repaired. The only option is replacement. This is very easy: the horn is fixed to a thin metal bridge by a screw. It can be accessed by removing the bumper or the radiator grille. Now, the horn can be easily removed. Prior to installation, contact points should be checked for corrosion. The plugs are somewhat difficult to clean. If this does not work, the plugs must be renewed as well.

The horn: legally

Replacing a car horn implies installation of an original spare part or at least a approved component. This specifically applies to multitone clarions. It is possible to upgrade the horn by tuning. Nevertheless, only authorised systems with a verification code should be used. "Duke of Hazzard" dixie horns are illegal on the British Isles and the Continent. Their use can incur a fine. The installation of multitone signals is severely prohibited. Imitating a police siren is a serious offence which can lead to proceedings on charges of assumption of authority.

Buying a car horn

Car horns are very cheap, starting at 5 EUR (± £4,50). The accessory trade offers a wide range of special horns, suitable for modification of the horn sound. Nevertheless, the authorisation of the product should always be checked. Operating a horn requiring an air compressor is generally reserved for large vehicles. Trucks and buses are traditionally equipped with these horn types as they need to drown out the noise of a large diesel engine. Their use in family cars requires approval.


Car horn : best-selling products
Horn
BOSCH 0 986 AH0 501 electric air horn
  • Length [mm]: 92
  • Bore Diameter [mm]: 8,7
  • Operating Mode: Electric-pneumatic
  • Voltage [V]: 12
  • Power Consumption [W]: 60
  • Sound Level [dB(A)]: 110
  • Width [mm]: 57
  • Height [mm]: 123,6
  • Supplementary Article / Supplementary Info Info 2: Holder may need adaptation
  • Connector/Clamp: Connector may need adjustment
  • Condition:  new
0 986 AH0 501 BOSCH replacement car horn price
BOSCH | 0 986 AH0 501
£ 11,64
Condition:  new
Horn
CARPOINT 0524703 horn
  • Rated Voltage [V]: 12
  • Frequency Range [Hz]: 405 - 495
  • Sound Level [dB(A)]: 112
  • Power Consumption [W]: 108
  • Housing Colour: red/black
  • Quantity: 2
  • Material: Steel, Plastic
  • Full Set: +
  • Parameter: electric compressor
  • Condition:  new
0524703 CARPOINT replacement car horn price
CARPOINT | 0524703
£ 25,85
Condition:  new
Air Horn
BOSCH 0 986 AH0 731 electric air horn
  • Bore Diameter [mm]: 8,3
  • Rated Voltage [V]: 12
  • Power Consumption [W]: 60
  • Operating Mode: Electric
  • Diameter [mm]: 76
  • Weight [kg]: 0,2
  • Sound Level [dB(A)]: 110
  • Specification: schwarz
  • Condition:  new
0 986 AH0 731 BOSCH replacement car horn price
BOSCH | 0 986 AH0 731
£ 9,96
Condition:  new
Air Horn
HELLA 3AM 922 000-971 horn
  • Voltage [V]: 12
  • Power Consumption [W]: 42
  • Sound Level [dB(A)]: 111
  • Frequency Range [Hz]: 350, 415
  • Power consumption [A]: 3,5
  • Protection Type (IP Code): IP65
  • fulfils ECE norm: R28
  • Registration Type: ECE approved
  • Signal: High Tone, Low Tone
  • Housing Colour: red/black
  • Quantity: 2
  • Operating Mode: Electric
  • Diameter [mm]: 90
  • Temperature range from [°C]: -40
  • Temperature range to [°C]: +90
  • Mounting Type: Flat Plug-in Connector
  • Supplementary Article / Supplementary Info Info 2: with E quality seal
  • Assy./disassy. by qualified personnel required!
  • Condition:  new
3AM 922 000-971 HELLA replacement car horn price
HELLA | 3AM 922 000-971
£ 13,82
Condition:  new
Air / Electric Horn
HELLA 3FH 012 010-061 electric air horn
  • Voltage [V]: 12
  • Power Consumption [W]: 72
  • Sound Level [dB(A)]: 110
  • Frequency range from [Hz]: 400
  • Frequency range to [Hz]: 500
  • Power consumption [A]: 6
  • Protection Type (IP Code): IP65
  • fulfils ECE norm: R28
  • Registration Type: ECE approved
  • Signal: High Tone, Low Tone
  • Housing Colour: black
  • Quantity: 2
  • Operating Mode: Electric
  • Diameter 1 [mm]: 86
  • Temperature range from [°C]: -40
  • Temperature range to [°C]: +90
  • Assy./disassy. by qualified personnel required!
  • Condition:  new
3FH 012 010-061 HELLA replacement car horn price
HELLA | 3FH 012 010-061
£ 20,52
Condition:  new
Air Horn
AMiO 01715 horn
  • Rated Voltage [V]: 12
  • Signal Horn: Multi-tone Trumpet Horn
  • Frequency Range [Hz]: 410, 510
  • Sound Level [dB(A)]: 110+/-5
  • Housing Colour: silver
  • Signal: High Tone
  • Surface: Polished
  • Vehicle type: CHR-01
01715 AMiO replacement car horn price
AMiO | 01715
£ 8,06
Air / Electric Horn
HELLA 3FH 012 010-031 electric air horn
  • Voltage [V]: 12
  • Power Consumption [W]: 72
  • Sound Level [dB(A)]: 110
  • Frequency range from [Hz]: 400
  • Frequency range to [Hz]: 500
  • Power consumption [A]: 6
  • Protection Type (IP Code): IP65
  • fulfils ECE norm: R28
  • Registration Type: ECE approved
  • Signal: Low Tone, High Tone
  • Housing Colour: black
  • Quantity: 2
  • Operating Mode: Electric
  • Diameter 1 [mm]: 86
  • Temperature range from [°C]: -40
  • Temperature range to [°C]: +90
  • Assy./disassy. by qualified personnel required!
  • Condition:  new
3FH 012 010-031 HELLA replacement car horn price
HELLA | 3FH 012 010-031
£ 19,68
Condition:  new
Air / Electric Horn
HELLA 3FH 012 010-021 horn
  • Voltage [V]: 12
  • Power Consumption [W]: 72
  • Sound Level [dB(A)]: 110
  • Frequency range from [Hz]: 400
  • Frequency range to [Hz]: 500
  • Power consumption [A]: 6
  • Protection Type (IP Code): IP65
  • fulfils ECE norm: R28
  • Registration Type: ECE approved
  • Signal: High Tone, Low Tone
  • Housing Colour: black
  • Quantity: 2
  • Operating Mode: Electric
  • Diameter 1 [mm]: 86
  • Temperature range from [°C]: -40
  • Temperature range to [°C]: +90
  • Assy./disassy. by qualified personnel required!
  • Condition:  new
3FH 012 010-021 HELLA replacement car horn price
HELLA | 3FH 012 010-021
£ 22,18
Condition:  new
Air / Electric Horn
HELLA 3FH 007 424-811 electric air horn
  • Voltage [V]: 12
  • Power Consumption [W]: 72
  • Sound Level [dB(A)]: 110
  • Frequency range from [Hz]: 400
  • Frequency range to [Hz]: 500
  • Power consumption [A]: 6
  • Protection Type (IP Code): IP65
  • fulfils ECE norm: R28
  • Registration Type: ECE approved
  • Signal: Low Tone, High Tone
  • Housing Colour: red/black
  • Quantity: 2
  • Operating Mode: Electric
  • Overall Height [mm]: 89
  • Width [mm]: 109
  • Depth [mm]: 80
  • Temperature range from [°C]: -40
  • Temperature range to [°C]: +80
  • Mounting Type: Flat Plug-in Connector
  • Supplementary Article / Supplementary Info: without accessories
  • Supplementary Article / Supplementary Info Info 2: with E quality seal
  • Assy./disassy. by qualified personnel required!
  • Condition:  new
3FH 007 424-811 HELLA replacement car horn price
HELLA | 3FH 007 424-811
£ 16,75
Condition:  new
Air Horn
TOPRAN 102 956 horn
  • Signal Horn: Signal Horn
  • Operating Mode: Electric
  • Number of pins: 2
  • Signal: High Tone
  • Frequency Range [Hz]: 510
  • Connector Shape: rectangular
  • Supplementary Article / Supplementary Info Info 2: with fastening material
  • Operating voltage [V]: 12
  • Condition:  new
102 956 TOPRAN replacement car horn price
TOPRAN | 102 956
£ 7,32
Condition:  new
Air Horn
MEYLE 100 800 0043 electric air horn
  • Rated Voltage [V]: 12
  • Frequency Range [Hz]: 335
  • Signal: Low Tone
  • Sound Level [dB(A)]: 118
  • Diameter [mm]: 91
  • Number of pins: 2
  • Power Consumption [W]: 65
  • Supplementary Info: ORIGINAL Quality
  • Condition:  new
100 800 0043 MEYLE replacement car horn price
MEYLE | 100 800 0043
£ 9,17
Condition:  new
Air Horn
TOPRAN 111 072 horn
  • Operating Mode: Electric
  • Number of pins: 2
  • Signal: High Tone
  • Frequency Range [Hz]: 510
  • Connector Shape: oval
  • Supplementary Article / Supplementary Info Info 2: with fastening material
  • Operating voltage [V]: 12
  • Condition:  new
111 072 TOPRAN replacement car horn price
TOPRAN | 111 072
£ 8,36
Condition:  new