Installing Mopar cross bars on your Jeep Grand Cherokee is one of the best ways to add flexible cargo capacity. These cross bars, designed specifically for Jeep vehicles, let you carry bikes, kayaks, luggage, and more with greater safety and convenience.
If you’re new to car accessories, the process can seem complicated. But with the right steps and a bit of patience, most people can handle this job with basic tools.
This guide will walk you through each stage, from preparing your Jeep to safely securing your new cross bars. Along the way, you’ll get tips to avoid common mistakes and make sure your installation is solid.
Why Choose Mopar Cross Bars For Your Jeep Grand Cherokee
Mopar is the official parts brand for Jeep. Mopar cross bars are specifically engineered for your Grand Cherokee, which means better fit, durability, and compatibility. Many generic cross bars don’t align perfectly with factory roof rails, leading to noise, poor support, or even damage.
Here’s a quick look at how Mopar cross bars compare to popular aftermarket options:
| Feature | Mopar Cross Bars | Generic Cross Bars |
|---|---|---|
| Fit | Custom for Grand Cherokee | Universal, may require adjustments |
| Warranty | Backed by Jeep/Mopar | Varies, often limited |
| Noise | Low wind noise | Can be noisy |
| Weight Capacity | Up to 150 lbs | Usually 100-130 lbs |
If you use roof racks frequently, investing in Mopar cross bars pays off with better performance and peace of mind.
Tools And Preparation
Before you start, gather the necessary tools. Most Mopar cross bar kits come with the required hardware, but double-check to avoid delays.
You’ll need:
- Mopar cross bar kit (includes brackets, bolts, and instructions)
- Torx or Allen wrench (often included in the kit)
- Step stool (for easier access to the roof)
- Clean cloth
Inspect your Jeep’s roof rails for dirt or debris. Clean the rails thoroughly to prevent scratching and ensure a tight fit.
Place all parts on a clean surface and review the instructions. Identify the front and rear cross bars Mopar kits usually mark them with stickers or labels.
Step-by-step Installation Guide
Follow these steps to install your Mopar cross bars efficiently:
1. Position The Cross Bars:
Locate the factory roof rails on your Jeep. Place the front cross bar at the designated points near the windshield.
The rear cross bar goes closer to the tailgate. Double-check the orientation; most cross bars are directional.
2. Attach Mounting Brackets:
Slide or snap the mounting brackets onto the cross bars, aligning them with the fixed points on your roof rails. Do not fully tighten the bolts yet leave them a little loose for adjustments.
3. Secure The Cross Bars:
Use the supplied tool (usually a Torx or Allen wrench) to fasten the bolts or screws. Start with the front bar, alternating between sides to keep the bar level.
Repeat for the rear bar. Tighten each bolt gradually and evenly.
4. Check Alignment And Tightness:
Ensure both cross bars are parallel and centered. Test the tightness by gently pulling up on each bar.
They should not move. If you hear creaks or see gaps, loosen the bolts, realign, and retighten.
5. Install End Caps (if Included):
Some kits have plastic end caps for a finished look. Snap these onto the ends of each cross bar.
6. Test For Noise And Security:
Before loading cargo, drive your Jeep at moderate speed. Listen for whistling or rattling.
If you hear noise, check the fit and retighten as needed.
Here is a summary of the installation steps and estimated time:
| Step | Estimated Time |
|---|---|
| Preparation | 10 minutes |
| Position Cross Bars | 5 minutes |
| Attach Brackets & Secure | 15 minutes |
| Final Checks | 5 minutes |
Most people finish in 30–40 minutes.
Common Mistakes And Tips
Many first-timers make similar errors. Avoid these for a smoother experience:
- Mixing up front and rear bars: The bars are not always the same length.
- Over-tightening bolts: This can strip threads or crack plastic parts.
- Ignoring instructions: Even small differences between Jeep years can change the process.
- Not cleaning rails: Dirt can scratch paint or affect fit.
A non-obvious tip: If you plan to use the cross bars only occasionally, add a thin layer of silicone spray to the bolts before installation. This helps prevent rust and makes removal easier later.
After Installation: Usage And Maintenance
Once installed, your Mopar cross bars are ready for action. Always check the weight limit (usually 150 lbs, but confirm for your model). Distribute cargo evenly and secure loads with straps. Remove the bars if you notice increased wind noise or rarely use them, as this can improve fuel economy.
For long-term care:
- Inspect bolts and brackets every few months.
- Clean road salt and debris, especially after winter.
- Store cross bars indoors when not in use for long periods.
When To Seek Professional Help
If you notice loose rails, stripped bolts, or damage during installation, stop and consult a professional. Some dealerships or auto shops can install Mopar cross bars for a reasonable fee. This may also protect your vehicle warranty.
You can find more details and model-specific guides on the official Mopar Accessories website.
Frequently Asked Questions
How Much Weight Can Mopar Cross Bars Hold?
Mopar cross bars for the Jeep Grand Cherokee typically support up to 150 pounds. However, always check your owner’s manual for the exact limit, as it may vary between models and years.
Do I Need To Drill Or Modify My Roof Rails?
No, Mopar cross bars are designed to use existing factory mounting points. There is no need to drill, cut, or permanently modify your roof rails.
Will Cross Bars Affect My Gas Mileage?
Adding cross bars can slightly reduce fuel efficiency due to increased wind resistance, especially if you leave them on when not in use. Removing them when not needed helps improve gas mileage.
Can I Use Accessories From Other Brands With Mopar Cross Bars?
Many popular roof rack accessories (bike mounts, cargo boxes) fit Mopar cross bars, but always check the compatibility of clamps and mounting hardware before purchase.
Are Mopar Cross Bars Easy To Remove?
Yes, removal is simple just reverse the installation steps. Keep the supplied tool in your glove box for easy access.
Installing Mopar cross bars on your Jeep Grand Cherokee is a straightforward DIY project that adds real value. With the right preparation, you’ll have strong, reliable roof storage for all your adventures.
