The 1999 Jeep Cherokee could be equipped with either a 4-speed automatic transmission or a 5-speed manual transmission, depending on the engine and trim level.
In the late-1990s Cherokee XJ lineup, buyers selected between the 2.5-liter four-cylinder and the 4.0-liter inline-six engines, with each engine offering different transmission options. Availability varied by drivetrain (2WD vs 4WD) and production date, resulting in several common combinations for that model year.
Transmission options by engine and configuration
Below are the typical transmission pairings seen in 1999 Cherokee XJ models. Availability depended on engine choice and whether the vehicle was two-wheel drive or four-wheel drive.
- 4.0L inline-six engine paired with a 5-speed manual transmission (commonly AX-15 or NV3550).
- 4.0L inline-six engine paired with a 4-speed automatic transmission (commonly a 42RLE family unit).
- 2.5L four-cylinder engine paired with a 5-speed manual transmission (commonly AX-5).
- 2.5L four-cylinder engine paired with a 4-speed automatic transmission (commonly a 42RE).
In practice, the exact transmission code or designation could vary by production date and regional market, but these are the standard pairings reported for 1999 Cherokee XJ models.
Notes on identification and compatibility
To confirm which transmission a specific 1999 Cherokee has, check the model's owner manual, the transmission case stamp, or the VIN-derived build sheet. If you're restoring a Cherokee or sourcing parts, match the transmission mounting pattern, bellhousing, and shift linkage rather than relying solely on the engine code to avoid mismatches.
Summary
The 1999 Jeep Cherokee offered both a 4-speed automatic and a 5-speed manual, with the choice driven by engine type (2.5L I4 or 4.0L I6) and drivetrain. This produced up to four common combinations for buyers and restorers, making it important to verify the exact transmission when performing maintenance or sourcing parts.