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Porsche > 911 & 912 (1965-1989) > 911 1987-1989 3.2L G50 > Interior & Accessories >

Instruments

Instruments

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Speedo Scale For Conversion From Miles To Km/H. Porsche 911 1984-89 - 93064150800 - 911886-031
1
Speedo Scale For Conversion From Miles To Km/H. Porsche 911 1984-89
930641508XX
Product Information
Product Information
Speedo Scale For Conversion From Miles To Km/H.
The OE Match Speedo Scale for Conversion from Miles to Km/H is a high-quality replacement speedometer dial face designed to convert Porsche speedometer displays from miles per hour (MPH) to kilometres per hour (km/h). Manufactured to OE-style specifications for fit, appearance and clarity, this speedometer scale provides an authentic solution for imported vehicles, international market conversions and restoration projects.  

Fits:
  • Porsche 911 1984-1986 3.2L
  • Porsche 911 1987-1989 3.2L G50  

Precision printed with factory-style graphics and markings, the scale is designed to integrate seamlessly into the original instrument cluster while maintaining the classic appearance of the dashboard. Ideal for owners seeking a metric speed display, it allows for improved speed readability and a more authentic presentation for vehicles operating in km/h regions.  

What This Product Does:
  • Converts the speedometer display from MPH to km/h.
  • Provides clear and accurate speed reference markings.
  • Maintains the original appearance of the instrument cluster.
  • Supports vehicle import and market conversion projects.
  • Enhances dashboard presentationand authenticity.
  • Improves readability for drivers using metric speed measurements.
  • Restores worn or damaged speedometer dial faces.
  • Preserves factory-style instrument aesthetics.

Symptoms Of Wear Or Failure:
  • Faded or discoloured speed markings.
  • Peeling or lifting graphics.
  • Scratched or damaged dial surfaces.
  • Cracked or distorted scale face.
  • Poor visibility of speed graduations.
  • Illegible numbering or markings.
  • Age-related deterioration of printed finishes.
  • Incorrect speed display units following vehicle import.
  • Reduced dashboard appearance and originality.
  • Mismatched instrument presentation after restoration work.

Why Replacement Matters:

  • Speedometer dial faces are exposed to years of sunlight, heat, dust and environmental ageing. Over time, markings can fade, surfaces can become damaged and visibility may deteriorate, reducing both functionality and visual appeal.
  • For imported vehicles or restorations requiring a kilometre-per-hour display, replacing the original MPH scale provides a cleaner and more authentic solution than supplementary stickers or overlays. A properly fitted km/h scale improves readability and helps maintain a factory-style appearance within the instrument cluster.
  • Replacing a worn or incorrect speedometer scale restores instrument clarity, enhances dashboard presentation and provides accurate speed reference markings in kilometres per hour. An OE Match replacement delivers high-quality printing, precise fitment and authentic styling, making it ideal for Porsche restorations, instrument refurbishment and metric conversions.



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

930641508XX
93064150800

The product you are viewing cross references to these numbers
Speedometer conversion kit, from mph to km/h. Porsche 911 Carrera 1984-89 - 5987, 9164153000, 91164150129, 91164150501, 91164150329, 91164150700, 91164150600
4
Speedometer conversion kit, from mph to km/h. Porsche 911 Carrera 1984-89
5987
Product Information
Product Information
Speedometer conversion kit.
To convert your speedometer from mph to km/h

nordschleife

Fits:
Porsche 911 Carrera 1984-89

Description:

This conversion kit can be used to convert speedometers from the '84-'89 911G (except turbo) that are from US first delivery and have a 20x30 gear as the drive on the worm.

The kit includes the four gears that come in power flow order right after the electric motor with the drive worm. Also included is the corresponding speedometer pulley and a new speedometer glass.

Please note that this set can only be used for tachos that originally have a 20x30 dual gear.
Also, the shape of the housing shown in the product images is important to fit the new gears.

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

5987
5987
9164153000
91164150129
91164150501
91164150329
91164150700
91164150600

The product you are viewing cross references to these numbers
Tachometer / Rev Counter. Porsche 911 - Reconditioned - 911641301FX, 91164130106
1
Tachometer / Rev Counter. Porsche 911 - Reconditioned
Special Order item
911641301FX
Product Information
Product Information
Tachometer / Rev Counter. Reconditioned - Exchange

Please note:
Reconditioned units are sold on an exchange basis, A surcharge of £1235.50 will be held and then refunded when the old one is returned (subject to approval of supplier).

Fits:
Porsche 911 1984-89 3.2L



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

911641301FX
911641301FX
91164130106

The product you are viewing cross references to these numbers
Tensioner Spring for Speedometer Impulse Sender. Porsche 911 / 930 / 928 - 91566050900
1
Tensioner Spring for Speedometer Impulse Sender. Porsche 911 / 930 / 928
Special Order item
91566050901
Product Information
Product Information
Tensioner spring for speedometer impulse sender.


porsche

Fits:
Porsche 911 1974-77 - Models with electronic speedometer.
Porsche 911 1978-89 
Porsche 911 Turbo (930) 1975-77 
Porsche 928 1078-91



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

91566050901
91566050900

The product you are viewing cross references to these numbers
DISPLAYING 17 to 20 (of 20 products)
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About Instruments

Porsche Instruments & Gauge Clusters | Precision Monitoring for Performance and Reliability

Your Porsche’s instrument cluster is the heartbeat of the driving experience — delivering vital performance and engine data at a glance. From speedometers and tachometers to oil pressure and temperature gauges, these instruments combine precision engineering with timeless Porsche design. Over time, however, electrical faults, fading displays, or worn mechanisms can affect accuracy and reliability.

At Design911, we supply high-quality instrument clusters, gauges, and individual components designed to match or exceed original performance standards. Each part is meticulously engineered to ensure accurate readings, seamless integration, and long-term durability, restoring the driver-focused feel that defines every Porsche.

Whether you’re restoring a classic 911 cockpit or replacing a modern digital cluster, our range provides precision, authenticity, and performance you can trust.

What Do Porsche Instruments Do?

Instrument clusters and gauges allow drivers to monitor essential performance metrics, helping maintain control and awareness in all driving conditions.

Core Functions:

  • Display vehicle speed, RPM, fuel level, oil pressure, and temperature.
  • Provide real-time engine and system monitoring.
  • Integrate warning lights and indicators for safety and diagnostics.
  • Maintain Porsche’s signature driver-focused layout.
  • Enhance cabin aesthetics with precision-crafted design and finishes.

A properly functioning instrument cluster ensures both performance accuracy and a refined interior presentation.

Why Do Instruments Wear or Fail?

Even high-precision instruments are subject to wear, ageing, and electrical issues — especially in classic and high-mileage Porsche models.

Common Causes of Failure Include:

  • Faulty sensors or electrical connections causing inaccurate readings.
  • Dimming or failed backlighting and displays.
  • Internal gear or stepper motor wear in analogue gauges.
  • Faded dial faces or cracked lenses from UV exposure.
  • Moisture ingress causing corrosion or display malfunction.

When these issues occur, inaccurate readings or unresponsive gauges can compromise both safety and driving confidence.

Why Replace or Restore Your Porsche Instruments?

Replacing or refurbishing your Porsche’s instruments ensures accurate performance monitoring and preserves interior aesthetics. High-quality replacements restore full functionality while maintaining the classic design and illumination that Porsche is renowned for.

Key Benefits:

  • Restores accurate and reliable gauge readings.
  • Improves dashboard appearance and visibility.
  • Prevents electrical faults and warning light errors.
  • Compatible with Porsche 911, Boxster, Cayman, Panamera, Macan, Cayenne and more.
  • Available for both analogue and digital instrument clusters.
  • Ideal for classic restorations, interior refurbishments, and performance rebuilds.

A refreshed instrument cluster not only improves driving precision but also enhances the timeless beauty of your Porsche interior.

Highlights

  • Precision-engineered Porsche instrument clusters and gauges.
  • Available in analogue, digital, and hybrid configurations.
  • Direct-fit solutions for restoration or replacement.
  • High-visibility illumination and durable materials.
  • Suitable for both classic and modern Porsche interiors.
  • Designed for performance reliability and authentic aesthetics.       

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