The Jeep Cherokee XJ from the year 2000 remains a favorite for off-road fans and daily drivers alike. But one question often comes up for owners and buyers: What transmission is in a Jeep Cherokee XJ 2000? The answer is important for understanding performance, reliability, and maintenance needs. If you want to know which transmission came with your XJ, what makes it unique, and how it compares to other options, this guide will give you clear, practical answers.
Transmission Options For The 2000 Jeep Cherokee Xj
The 2000 Jeep Cherokee XJ offered two main transmissions: one automatic and one manual. Each has its own strengths, and your choice may depend on your driving style.
Automatic Transmission: Aw4
Most 2000 XJ Cherokees came with the Aisin-Warner AW4 automatic transmission. This 4-speed automatic is famous for its durability and smooth shifting. It was used in Cherokees from 1987 to 2001, making it one of Jeep’s most reliable transmissions.
- Gear Ratios: The AW4 features gear ratios that balance power and fuel economy.
- Transmission Fluid: Uses Dexron II or III ATF. Regular changes keep it running well.
- Towing/Off-Road: The AW4 is popular for towing and off-road use because it handles heat and stress better than many other automatics.
Manual Transmission: Ax15
A smaller number of 2000 XJ Cherokees came with the AX15 5-speed manual transmission. This option is less common, as most buyers preferred automatics by this year.
- Driver Engagement: Many drivers like the AX15 for the control it gives on rough roads.
- Strength: The AX15 is strong but can wear out with hard use. Clutch maintenance is important.
- Fuel Economy: Manual models can get slightly better gas mileage.
Transmission By Engine Type
The 2000 XJ Cherokee was sold with one main engine: the 4.0L inline-six. This engine is legendary for reliability and power.
- AW4 Automatic: This is the standard for the 4.0L engine.
- AX15 Manual: Available but rare. Usually found in base models or fleet vehicles.
Other engines (like the 2. 5L four-cylinder) were not available in the US XJ in 2000.
Here’s a quick look at how the transmissions match up with the engine:
| Engine | Transmission | Availability |
|---|---|---|
| 4.0L I6 | AW4 Automatic | Common |
| 4.0L I6 | AX15 Manual | Rare |
Aw4 Automatic: Features And Benefits
The AW4 stands out for several reasons:
- Strong Reliability: Many AW4 transmissions last over 250,000 miles with basic care.
- Smooth Shifting: It shifts gently, making city and highway driving comfortable.
- Overdrive: The fourth gear is an overdrive, helping with better fuel economy.
- Easy to Service: Parts are widely available, and many shops know how to repair it.
Here’s how the AW4 compares to other automatic transmissions in similar SUVs:
| Transmission | Gears | Max Torque (ft-lb) | Common Problems |
|---|---|---|---|
| AW4 (Cherokee XJ) | 4 | 350 | Solenoids, connectors |
| 4L60E (Chevy S-10) | 4 | 300 | Valve body, slipping |
| A340E (Toyota 4Runner) | 4 | 330 | Seals, electronics |
Ax15 Manual: What To Know
The AX15 is respected among manual transmission fans. It has five gears, including an overdrive for highway use.
- Shifter Feel: Some find it notchy, but it is positive and direct.
- Maintenance: Regular gear oil changes and clutch checks keep it running strong.
- Swap Potential: The AX15 is popular for swaps into other Jeeps and trucks because of its strength.
One insight many miss: AX15-equipped XJs are less likely to have been used for towing, which can mean less stress on the drivetrain if you’re buying used.
How To Identify Which Transmission You Have
If you’re not sure which transmission is in your XJ, here are quick ways to check:
- Look at the gear selector. Automatic XJs have PRND21 markings; manuals have a standard “H” shift pattern.
- Check the transmission pan shape under the vehicle. The AW4 pan is rectangular, while the AX15 is more rounded.
- VIN Code or Sticker. The build sticker on the driver’s door or VIN can sometimes tell you (ask a dealer or check online).
- Service Records. Past records might mention transmission type or fluid changes.
Common Problems And Tips
Both the AW4 and AX15 are strong, but every transmission can have issues over time.
Aw4 Issues
- Leaking fluid: Usually from the pan or output shaft seal.
- Delayed shifting: Can be caused by dirty fluid or a failing solenoid.
- Electrical problems: AW4 uses electronic controls—bad connections can cause trouble.
Ax15 Issues
- Hard shifting: Often from worn synchronizers or low fluid.
- Clutch wear: Manual XJs need regular clutch checks, especially if used off-road.
Practical tips:
- Change transmission fluid every 30,000–60,000 miles.
- Listen for new noises—grinding, whining, or clunks should be checked right away.
- If you tow or go off-road, change fluid more often and check for leaks after heavy use.
Why The 2000 Xj Transmission Matters
Choosing the right transmission affects more than just driving style. It can impact:
- Resale value: Automatics are easier to sell, but some buyers seek manuals for control.
- Maintenance costs: Manuals can be cheaper over time, but clutch jobs add up.
- Off-road ability: Both are capable, but automatics are often preferred for rock crawling because they’re smoother at low speeds.
One key insight: The AW4 automatic is prized for its ability to handle power upgrades, making it a top choice for those who plan to modify their XJ.
Frequently Asked Questions
What Fluid Does The Aw4 Automatic Transmission Use?
The AW4 uses Dexron II or III automatic transmission fluid. Using the wrong fluid can cause shifting problems and damage.
How Long Does The Aw4 Transmission Last?
With regular fluid changes, the AW4 can last 200,000–300,000 miles. Some owners have gone even farther with good care.
Can You Swap A Manual Transmission Into An Automatic Xj?
Yes, but it’s a big job. You need the AX15 transmission, clutch pedal, flywheel, driveshaft, and wiring changes. Most people find it easier to buy the XJ with their preferred transmission.
Is The Aw4 Good For Off-roading?
Absolutely. The AW4 is reliable and handles heat well, which is important for slow, technical off-road driving. Many off-roaders prefer it for this reason.
Where Can I Find More Details About Jeep Transmissions?
You can read more detailed specs and history on the Jeep Cherokee XJ Wikipedia page.
Whether you’re choosing your first XJ or planning upgrades, knowing your transmission is key. The 2000 Jeep Cherokee XJ’s AW4 and AX15 are both strong choices, each with its own character. Understanding the differences helps you drive smarter and keep your XJ running strong for years to come.
