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1986-1991 Range Rover Classic Bulb Check Unit

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Ensure critical dashboard warning lights function properly with this OEM Bulb Check Unit (PRC8478) for 1986–1991 Range Rover Classic models. This component is essential to the instrument cluster’s ability to monitor vital systems like oil pressure, battery charge, brake performance, and engine operation. When the ignition is turned on, the unit initiates a self-check to confirm that all indicator bulbs are working as designed.

If your dash lights fail to illuminate or provide inconsistent signals, the bulb check unit may be the culprit. Replacing it with this genuine OEM component restores the full safety and diagnostic capability of your classic Range Rover, helping you stay aware of any mechanical issues.

Built to Land Rover factory specifications, it fits directly without modification and is made from durable materials to ensure long-lasting performance. Whether you’re maintaining a daily driver or restoring a vintage 4x4, this bulb check unit plays a vital role in your vehicle’s operational awareness and overall reliability.

✅ Features:

  • OEM Part Number: PRC8478
  • Designed for 1986–1991 Range Rover Classic
  • Controls warning lights for oil, brake, battery, and engine
  • Triggers dashboard bulb diagnostic check on ignition
  • Restores correct indicator light functionality
  • Direct-fit, plug-and-play OEM replacement
  • Durable construction, built to original Land Rover specs
  • Essential for vehicle diagnostics and safety alerts

📦 Vehicle Fitment:

  • Land Rover Range Rover Classic – Model Years: 1986, 1987, 1988, 1989, 1990, 1991

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