Gauge Cluster Printed Circuit Replacement. Porsche 928 1985-88  ❭  LTZ-92864197302

Gauge Cluster Printed Circuit Replacement.
The LutzAuto Instrument Cluster Printed Circuit Board Replacement is a precision-engineered solution designed to permanently correct common electrical failures in the Porsche 928 instrument cluster for model years 1985–1988.
From the factory, these clusters relied on a flexible printed circuit foil mounted behind the gauges. Over time, heat exposure, age-related material degradation, and repeated handling cause the original foil to become brittle, crack, or lose conductivity. This results in erratic gauges, failed warning lights, flickering illumination, and intermittent or total cluster malfunction. Repairing the original flex circuit is rarely reliable or long-lasting.
This LutzAuto replacement eliminates those issues by replacing the fragile flex foil with a modern, rigid printed circuit board (PCB). Manufactured to exact OEM dimensions and electrical specifications, the board restores stable power distribution and signal integrity to all gauges, warning indicators, and cluster lighting while dramatically improving durability.
Designed as a direct-fit replacement, this installs into the original instrument cluster housing with no permanent modifications required. It preserves the factory appearance of the dashboard while delivering modern electrical reliability—making it ideal for restorations, daily-driven classics, and preventative maintenance alike.

Fits:

• Porsche 928S2 4.7L 1985-86
  
• Porsche 928S4 5.0L 1987-88
  
  

What This Product Does:

• Replaces the factory flexible printed circuit foil in the instrument cluster
  
• Restores stable electrical connections to all gauges (speedometer, tachometer, fuel, temp, etc.)
• Powers warning lights and cluster illumination consistently
• Reduces intermittent faults caused by aged or brittle flex circuits
• Provides a serviceable, upgrade-quality circuit based on modern PCB construction
• Retains original fitment with no permanent modifications

What Is Included In The Kit:

• New Modern Circuit Boards
• New Indicator LED lights
• New Illumination LED lights
• Plugin Wiring and Zipties
• LTZ-POR-2PRONG-KIT

Key Features:

• Direct OEM-fit replacement for Porsche 928 model years 1985–1988
  
• Modern printed circuit board replaces the fragile, failure-prone flex foil
  
• Improved electrical reliability and signal integrity
• Durable design engineered to better withstand temperature cycles and vibration
• Compatible with original cluster housings and connectors
• Includes improved LED illumination where applicable (depending on options)

Symptoms Of A Failing Original Circuit:

• Flickering or non-responsive gauge needles
• Warning lights that don’t illuminate or stay on constantly
• Cluster lighting that is dim, inconsistent, or flickering
• Complete loss of cluster function at key points (especially on warm engines)
• Sudden or intermittent gauge failures
• Erratic behavior from multiple instruments simultaneously

Why Replacement Matters:

• Restores Accurate Instrumentation: Critical for monitoring engine vitals (speed, rpm, coolant temp, fuel) and maintaining safe operation.
  
• Eliminates Intermittent Faults: Broken circuits often create unpredictable behavior that can mask underlying mechanical issues.
  
• Prevents Further Electrical Damage: A failed flex circuit can lead to shorts, lighting issues, or electrical feedback problems.
  
• Extends Cluster Life: Modern PCB construction resists the aging and thermal stresses that doomed the original foil.
  
• Preserves Value and Authenticity: A correct-fit, OEM-spec replacement preserves both drivability and collector value.
  
• Reliable Daily Use: Whether driving regularly or restoring your 928, this replacement brings long-term peace of mind.

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

LTZ-92864197302

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