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The Assenmacher Specialty Tools Screw-On Oil Fill Funnels are the best way to fill your engine with fresh oil in your 2007-2018 Jeep Wrangler JK. There are 2 funnels available, one specifically for the 3.8 liter Pentastar V6 found in the 2007 to 2011 Jeep Wrangler, and one for the 3.6 liter Pentastar V6 found in the 2012 to 2018 Jeep Wrangler JK. AST proudly makes both funnels here in the USA from a durable polycarbonate material, and they feature a threaded end that screws tightly into your engine's oil fill tube along with gaskets that prevent any oil from spilling or leaking while you're filling your engine with oil.

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