This Crown Automotive Radiator Drain Petcock fits your 1965 1964 1963 Jeep J-300 3.8L L6 and is perfect for a tune up or performance upgrade. .
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Crown Automotive Radiator Drain Petcock for 1963-1965 Jeep J-200 3.8L L6 - lq
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Crown Automotive Radiator Drain Petcock for 1981-1985 Jeep Scrambler 4.2L L6 rd
