What transmission does a 2018 Jeep Grand Cherokee have?

In short, the 2018 Jeep Grand Cherokee uses an eight-speed automatic transmission from the TorqueFlite family. The exact variant depends on engine and trim, but all models are automatic, not manual.

Overview of the 2018 Grand Cherokee transmission

The 2018 Grand Cherokee lineup offered multiple engines, and Jeep paired each with a high-efficiency eight-speed automatic transmission to balance performance and fuel economy. In general, lighter-duty variants use a lighter variant of the eight-speed, while higher-torque engines rely on a stronger variant within the TorqueFlite family.

Before listing how the transmissions pair with each engine, note that exact transmission codes can vary by market and production date. The following pairings reflect common configurations for US-spec 2018 Grand Cherokees.

Engine-to-transmission pairings commonly found in 2018 Grand Cherokees:



• 3.6L Pentastar V6 — 8-speed automatic transmission (TorqueFlite 8HP50 family)


• 3.0L EcoDiesel V6 — 8-speed automatic transmission (TorqueFlite 8HP70 family)


• 5.7L Hemi V8 — 8-speed automatic transmission (TorqueFlite 8HP70)


• 6.4L SRT Hemi V8 — 8-speed automatic transmission (TorqueFlite 8HP70)

Concluding note: across the 2018 Grand Cherokee range, the eight-speed automatic is standard, with the 8HP50 variant typically paired to the V6, and the higher-torque 8HP70 variant used for the EcoDiesel, V8, and high-performance SRT models. Always verify the exact transmission code tied to a specific VIN if you need the precise specification.

Summary

The 2018 Jeep Grand Cherokee is equipped with an eight-speed automatic transmission from the TorqueFlite family. The base V6 commonly uses the 8HP50, while the EcoDiesel and all V8/SRT variants use the stronger 8HP70, though exact codes can vary by market and build date. This configuration prioritizes smooth shifts and improved towing capability across the model lineup.