Electric Horn

Horn, 500 Hz, high tone.

Fits:
Porsche 911 2.0L-2.7L 01/1963-07/1973
Porsche 912 1.6L 01/1965-02/1970

Related reference numbers
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PCG63511302

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Horn Low / High-Pitched. 

Fits:
Porsche 911 1970-89
Porsche 928 1978-86
Porsche 964 1989-94
Porsche 993 1994-98


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91163510

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Horn low-pitched 335 Hz (12V)

Fits:
Porsche 911 1965-68 Coupe

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90163510201

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Horn Set, 12 Volt In Chrome.
Restore the distinctive sound and period-correct appearance of your classic Porsche with this OE Match 12 Volt Chrome Horn Set, manufactured as a direct replacement. Produced to OE-style specifications, this matched pair of chrome horns delivers a clear, reliable warning signal while maintaining the authentic factory look of the vehicle.

Fits:

• Porsche 911 1965-1968 2.0L / 912 SWB (F)
• Porsche 356 1950-55
• Porsche 356A 1955-59
• Porsche 356B 1959-63
• Porsche 356C 1963-65  

Mounted at the front of the vehicle, the horn set is an essential safety component, allowing the driver to warn other road users and pedestrians of their presence. Over time, original horns can suffer from internal corrosion, moisture ingress, worn electrical contacts, or damaged housings, resulting in weak, intermittent, or failed operation. This OE Match replacement set restores dependable performance and original styling, making it ideal for maintenance and concours-quality restoration projects.  

What This Product Does:

• Produces a loud and clear audible warning signal.
• Helps alert other road users and pedestrians.
• Operates on the vehicle's 12-volt electrical system.
• Restores reliable horn performance.
• Maintains the original factory appearance with a chrome finish.
• Provides direct OE-style fitment.
• Replaces worn, damaged, or non-functioning original horns.

Symptoms Of Wear Or Failure:

• Horn not sounding when activated.
• Weak or muffled horn tone.
• Intermittent horn operation.
• Distorted or incorrect horn sound.
• Corrosion on the horn housing or terminals.
• Moisture ingress affecting performance.
• Damaged or dented horn housings.
• Loose or broken mounting brackets.
• Electrical terminals showing signs of corrosion.
• Failed MOT or roadworthiness inspection due to an inoperative horn.

Why Replacement Matters:

• A fully functioning horn is an essential safety feature that enables you to warn other road users of potential hazards. A weak, intermittent, or failed horn can reduce your ability to react effectively in emergency situations and may also result in your vehicle failing a roadworthiness inspection.
• Replacing worn or faulty horns restores a clear, dependable warning signal while preserving the authentic appearance of your classic Porsche. Manufactured to OE-style specifications, this chrome horn set offers the correct fit, reliable performance, and factory-style finish, making it an ideal choice for routine maintenance or high-quality restoration.

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Related, superseded, cross reference or alternative numbers for comparison.

64463511000

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The OE Match low/high-pitched horn is a replacement warning-sound component, match the required tone and original reference before selecting a replacement.

Fits

• Porsche 911 1970-89 
• Porsche 928 1978-86 
• Porsche 964 1989-94 
• Porsche 993 1994-98
  
  Check fitment for your specific vehicle (model, year, engine) before ordering.
  
  Diagram ref no 7
  
  What Is This Part?

This is an electric fanfare horn, forming the sound-producing part of the vehicle's horn system. An electrically driven diaphragm produces the warning note when the horn circuit is activated. High- and low-pitched horns provide the separate notes in a dual-tone installation, so a failed unit can change the overall sound even when the other horn still operates. The horn works with the vehicle's wiring, switching circuit and mounting support; these should be checked when investigating a fault.

What Does This Part Do?

• Produces an audible warning: Converts electrical activation into the horn's warning sound.
• Provides the required note: Supplies the high- or low-pitched sound appropriate to the selected version.
• Works within the horn assembly: Operates alongside the companion horn where a dual-tone arrangement is fitted.
  
  Why Replace This Part?

Replacement may be appropriate if the horn remains silent, weak or distorted after its electrical supply and connections have been checked. Moisture, corrosion or deterioration within the sound-producing mechanism can affect operation. A damaged housing or mounting attachment may also make the existing horn unsuitable for refitting.

Do not assume that silence means the horn itself has failed. A fuse, relay, steering-wheel switch, damaged wire or poor earth connection can produce similar symptoms. Establishing the cause first helps avoid replacing a serviceable component.

When to Replace This Part?

• No sound: The horn does not operate despite a verified supply and earth connection.
• Weak or distorted note: The sound remains croaky or muted after connection faults have been ruled out.
• Missing note: Only one horn operates in a dual-tone installation.
• Intermittent operation: Testing identifies the horn rather than its wiring or controls as the source.
• Physical damage: The housing, terminals or mounting attachment are damaged or substantially corroded.
  
  Where Is This Part Fitted?

Location: At the vehicle's horn mounting assembly, secured to its support and connected to the horn wiring. The mounting arrangement varies by model, so compare the existing support, connections and horn orientation before fitting.

Technical Details

• Type: Electrically operated fanfare horn with low- and high-pitched versions.
• Standard application identification: Reference 91163510121 is listed as short/high-pitched; reference 91163510221 is listed as long/low-pitched.
  
  FAQs

• Could the fault be in the horn switch or relay? Yes. Check circuit activation, the electrical supply, connectors and earth path before replacing the horn.
• Does a weak sound always mean the horn needs replacing? No. Poor connections or a low supply voltage can also weaken the sound. Clean and test the connections before condemning the horn.
• How should I choose between the tones? Compare the original reference and identify which note is missing or faulty. Check the special application note where relevant.
  
  
  Product Summary

• Product: Low/high-pitched electric fanfare horn.
• Brand: OE Match.

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91163510

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Relay black round for horns/lights etc.

Fits:
Porsche 911 1969-89
Porsche 914 1970-76

FOR:
- horn
- blower
- headlight flasher
- fog lamp
- ignition coil
- series resistor
- injection system
- windscreen & rear window heating (100W)
- cigarette lighter
- high beam etc.

* Please check and match the part number of your relay in your car before ordering.

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91161510902

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Relay black round for horns/lights etc.

Fits:
Porsche 911 1969-89
Porsche 914 1970-76

FOR:
- horn
- blower
- headlight flasher
- fog lamp
- ignition coil
- series resistor
- injection system
- windscreen & rear window heating (100W)
- cigarette lighter
- high beam etc.

* Please check and match the part number of your relay in your car before ordering.

Related reference numbers
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91161510902

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