Ford Essex V6 Engine (Canadian) - 3.9

3.9

A 3.9 L (237 cu in) version of the Essex V6 was introduced in 2004. It used the same 3.810 in bore diameter as the 3.8 L Essex, but had a slightly longer 3.464 in (88.0 mm) stroke. It was installed in a running change on later production 2004 Mustangs (starting October 7, 2003), though overall engine output was identical. Ford marketing information says that the bore is 3.8 inches and that the displacement is 3802 cc (232 cu in). The bore and stroke, however, work out to 3883 cc (237 cu in). Use of the 3.9 was short-lived in the Mustang though as it was replaced by Ford's 4.0 L Cologne OHC V6 when the Mustang was redesigned for 2005. The 3.9 continued on in the Ford Freestar minivan (successor to the Windstar) for a few years until production of the engine was discontinued in 2007.

Applications:

• 2004 Ford Mustang
• 2004–2007 Ford Freestar