12V Power Port ✘ ✘ ✘ ✔ ✔. Ultra safe and fail-safe design with spark-proof technology and reverse polarity protection – Allows for a secure connection to all batteries. Petrol Engines Up to 6.0 Liters Up to 4.0 Liters Up to 7.0 Liters Up to 8.0 Liters 9.0 Liters.
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