Inline 6 4.0 Jeep Engine. The 4.0l inline 6 (i6) engine was introduced in the cherokee in the late 80s and in the yj in 1991. Asked by twest98 feb 08, 2017 at 12:58 pm about the 2003 jeep grand cherokee laredo 4wd.
The 4.0l engine was a vast improvement over the amc 4.2l engine.
The inline 6 was in the tjs. The 2.4 entered production in december 1994 for minivans and cloud cars with the four speed automatic transmission. Not only did it provide outstanding power relative to other engines in its class in the early years we carry expedient jeep 4.0 inline 6 crate engine options, atk replacement engines, high performance stroker engines and more in a variety. Factory jeep engines are plenty sturdy, but they're not the most muscular motors out there.