2014 Jeep Grand Cherokee Air Suspension Replacement Part 68029912AE

If you own a 2014 Jeep Grand Cherokee with air suspension, you may eventually need to replace a failing air spring. One of the most common replacement parts is the OE air spring assembly with part number 68029912AE. This part is designed for the front or rear of the vehicle, depending on your specific configuration. Understanding what this part is, when to replace it, and how to choose the right option can save you time, money, and frustration.

What Is Part 68029912AE?

Part 68029912AE is the original equipment (OE) air spring assembly used in the 2014 Jeep Grand Cherokee's Quadra-Lift air suspension system. It replaces earlier revisions (such as 68029912AB or 68029912AD) and includes the air spring bag, piston, and mounting hardware. This part is typically used on the front suspension of Grand Cherokees equipped with the optional air ride system, although some applications may be rear. Always verify fitment using your VIN or by inspecting the old part.

Identifying the Correct Part

Before purchasing, check your vehicle's build sheet or look for a label on the old air spring. The part number 68029912AE is stamped into the plastic or metal housing. If your Jeep has a different number, cross-reference to ensure compatibility. Using the wrong part can cause improper ride height, warning lights, or suspension damage.

Symptoms of a Failing Air Spring

Air springs wear out over time due to road debris, temperature cycling, and rubber fatigue. Common signs that you need to replace part 68029912AE include:

• Uneven ride height: The vehicle may sag on one corner, especially after sitting overnight.
• Compressor running excessively: The air compressor will run more often to maintain pressure due to leaks.
• Bouncing or harsh ride: A failing air spring loses dampening ability, leading to a bouncy or jarring ride.
• Warning lights: The "Service Air Suspension" message may appear on the dash.
• Visible cracks or tears: Inspect the rubber bellows for damage, especially near the folds.

If you notice any of these symptoms, inspect the air springs promptly. Continued driving on a failed air spring can damage the compressor or other suspension components.

Replacement Considerations

Replacing the air spring assembly is a job that many experienced DIYers can handle, but it requires some specialized tools and safety precautions. Here’s what to consider before starting.

Tools and Parts Needed

• New OE air spring assembly (68029912AE or compatible aftermarket)
• Jack and jack stands
• Torx and socket set
• Plastic trim removal tools
• Air suspension deactivation tool or fuse pull (to disable system)
• Penetrating oil for rusted bolts
• Torque wrench

Step-by-Step Overview (Front Replacement)

1. Disable the air suspension: Locate the fuse for the air suspension compressor or use a scan tool to deactivate the system. This prevents the vehicle from self-leveling while you work.
2. Lift and secure the vehicle: Use a floor jack to raise the frame and place jack stands under the control arms. Never support the vehicle by the suspension components.
3. Remove the wheel and tire: This gives access to the upper and lower strut mounts.
4. Disconnect the air line: Use a quick-disconnect tool or carefully press the release collar on the fitting. Mark which line goes where.
5. Remove the upper strut mount bolts: These are typically three or four bolts accessible from the engine bay.
6. Remove the lower strut mounting bolt: This connects the strut to the knuckle.
7. Remove the air spring assembly: Gently pull it out, being careful not to damage the air line or wiring.
8. Install the new assembly: Transfer any brackets or spacers from the old unit if needed. Torque all bolts to manufacturer specifications.
9. Reconnect the air line: Ensure a secure click or seal.
10. Reinstall the wheel, lower the vehicle, and test the suspension: Start the engine, let the air suspension recalibrate, and check for leaks.

Safety Warnings

• Always work on a level surface with proper supports.
• The air suspension system stores high-pressure air; depressurize it before disconnecting lines.
• Do not attempt to repair a torn air spring with patches or sealants—replace the entire assembly.

Cost and Part Quality

When replacing the air suspension on your 2014 Jeep Grand Cherokee, you have two main options: OE (original equipment) parts like 68029912AE or aftermarket alternatives.

OE vs. Aftermarket

OE parts are made by the same manufacturer that supplied the factory, typically ZF or Continental. They offer guaranteed fitment and similar lifespan to the original. Aftermarket options can be less expensive but vary in quality. Some aftermarket air springs use better rubber compounds or reinforced bellows that may outlast OE. However, cheaper knockoffs often fail prematurely.

For part 68029912AE, consider:

• OE (Mopar): Most expensive, but exact fit and warranty.
• Premium aftermarket brands: Companies like Arnott, Dorman, and Bilstein offer air springs with improved materials and often a lifetime warranty.
• Budget aftermarket: Use only if you plan to replace the vehicle soon; expect 1-2 years of service.

Price Range

• OE Mopar 68029912AE: $350–$500 per assembly
• Premium aftermarket: $200–$350 per assembly
• Budget aftermarket: $100–$200 per assembly

Labor costs at a shop range from $200 to $400 per side, so DIY can save significantly.

Final Recommendation

For most 2014 Jeep Grand Cherokee owners, replacing the failed air spring with a premium aftermarket unit is the best balance of cost and reliability. Brands like Arnott offer a lifetime warranty and often improve on the OE design with thicker rubber and better seals. If you prefer to maintain original specifications, the OE Mopar 68029912AE is a solid choice.

Before buying, confirm the part number on your old unit and check for any related components that may need replacement, such as the air line fittings or the compressor relay. Replacing both front or both rear air springs at the same time is also recommended to ensure even performance.

If you’re not comfortable with the replacement, have a qualified mechanic perform the work. A proper installation is critical for safety and system longevity.

By using the correct part and following best practices, you can restore your Grand Cherokee’s ride quality and avoid further suspension issues.