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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 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) TURBO 1994-96
- 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 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 928 4.5L 1978-82
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
- Porsche 914 (1970-1976)
Price is each
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PCG631129A
The product you are viewing cross references to these numbers
- 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 911 1984-1986 3.2L
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Fits:
Porsche 911 2.2L-3.3L 08/1969-07/1984
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91164190100
The product you are viewing cross references to these numbers
- 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 911 1984-1986 3.2L
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 914 (1970-1976)
This Rubber Sealing Ring is an OE-style 100mm dashboard instrument sealing ring designed for Porsche 911 models from 1969 to 1985. It fits around the speedometer and combination gauge housings, helping secure the instruments within the dashboard while reducing vibration and creating a clean protective seal.
Fits:
Porsche 911 2.2L-3.2L 08/1969 - 07/1984
Porsche 914 1.7L-2.0L 01/1969 - 02/1976
Installed around the outer circumference of the dashboard instrument housing, the sealing ring acts as both a retaining cushion and protective gasket between the gauge body and dashboard opening. It helps hold the instrument firmly in place while reducing vibration, rattling, and movement during driving. The seal also creates a neat factory-style finish around the instrument edge for an authentic dashboard appearance.
The rubber sealing ring cushions and secures the dashboard gauge within the dashboard opening while reducing vibration and providing a clean sealing edge around the instrument housing.
Function
• Secures dashboard gauges within instrument panel
• Reduces vibration and instrument rattling
• Cushions gauge housing against dashboard trim
• Creates clean sealing edge around instrument
• Restores factory dashboard appearance and fitment
Dashboard instrument seals deteriorate over time due to heat, UV exposure, and compression ageing. Hardened or flattened seals can allow gauges to loosen within the dashboard, causing rattling, vibration, and poor dashboard appearance. Replacing worn sealing rings restores secure instrument mounting and factory-style fitment.
When to replace
• Loose or rattling dashboard gauges
• Cracked or hardened rubber seal
• Visible gaps around instrument housing
• During dashboard restoration or instrument refurbishment
• During gauge removal or dashboard servicing
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91164190200
The product you are viewing cross references to these numbers