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- Porsche 928 4.5L 1978-82
Gauge Cluster Printed Circuit Replacement.
The LutzAuto Instrument Cluster Printed Circuit Board Replacement is a precision-engineered solution designed to permanently resolve electrical failures in the Porsche 928 instrument cluster for model years 1979–1981.
Factory-installed flexible printed circuit foils in these vehicles are well known to deteriorate over time. Heat exposure, material fatigue, and repeated handling cause the original foil to crack or lose conductivity, resulting in unreliable gauge readings, warning light failures, and intermittent cluster operation. Attempting to repair the original foil is often ineffective and short-lived.
This LutzAuto replacement kit eliminates those issues by replacing the fragile flex foil with a robust, modern printed circuit board (PCB). Manufactured to exact OEM dimensions and electrical specifications, the PCB restores stable electrical connections to all gauges, indicators, and cluster lighting while significantly improving long-term durability.
Designed for direct installation, the board fits seamlessly into the original instrument cluster housing with no permanent modifications required. The result is a reliable, professional-grade repair that preserves the original appearance and functionality of the dashboard while delivering modern electrical reliability.
Ideal for restorations, daily drivers, and preventative maintenance, this ensures accurate instrumentation and dependable performance from your Porsche 928.
Fits:
- Porsche 928 4.5L 1979-81
- Replaces the original flex printed circuit foil that connects the vehicle wiring to all gauges and warning lights in the cluster
- Restores electrical continuity and stability for speedometer, tachometer, oil pressure, coolant temperature, fuel gauge, warning lamps, and backlighting
- Provides a hard-board PCB solution that is more durable than the factory flex foil
- Includes wiring mounting provisions and improvements that reduce intermittent electrical faults
- Retains full OEM appearance and functionality when installed
What Is Included In The Kit:
- New Modern Circuit Boards
- New Indicator LED lights
- New Illumination LED lights
- Plugin Wiring
Symptoms Of Failure:
- Erratic gauge behavior (jumping, sticking, or unresponsive)
- Warning LEDs that fail to illuminate or stay on constantly
- Cluster illumination issues (dim, flickering, or no light)
- Sudden loss of multiple gauge functions
- Dash cluster resets or intermittent faults
Key Features:
- Direct replacement for Porsche 928 (1979–1982) instrument cluster
- Modern printed circuit board (PCB) — stronger and more reliable than original flex foil
- Maintains full original functionality and fitment
- Restores gauge accuracy and electrical consistency
- Reduces intermittent faults and cluster electrical issues
- Easy installation with provided instructions and connector fitment
Why Replacement Matters:
- A properly functioning instrument cluster is crucial for monitoring engine status, vehicle speed, fuel level, and warning indicators. A faulty cluster can mask critical problems.
- No more jittery or stuck needles — accurate instrument readings help you drive with confidence.
- Replacing this known weak point helps maintain the long-term collectability and drivability of classic 928 models.
- LutzAuto parts are engineered and manufactured for high reliability, making this a superior alternative to attempting fragile repairs of the original flex circuit.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
LTZ-92864193900
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- Porsche 914 (1970-1976)
There are potentially two gears that can go bad. First is the gear on the side of the speedometer. If your gear is metal then you will not need this gear. If it is plastic inspect closely where the shaft comes through the gear as there will generally be a hairline crack and the gear must fit tight.
Fits:
Porsche 911 1965-75
Porsche 912 1965-75
Porsche 914 1970-76
Porsche 924 1976-88
Porsche 944 1982-91
Porsche 968 1992-95
Please note:
Need to open speedometer to determine correct style and tooth count required for your vehicle. It is always best to check you old gear before ordering.
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
Fits:
Porsche 944 1985-91
Porsche 968 1992-95
Click 'Zoom in' for large parts diagram.
Diagram ref no 5
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94464194101
The product you are viewing cross references to these numbers
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
Fits:
Porsche 928 1985-91 - x4 required in total
Porsche 944 1985-91 - Facelift models only, x6 required in total
Porsche 968 1992-95