Top Armor Upgrades Every 4Runner Owner Should Add in 2025

The 4Runner is one of the most capable adventure rigs on the market — but even with Toyota’s legendary reliability, the underbody needs serious protection once you leave the pavement. Rocky ledges, washouts, and surprise drops can dent or destroy key components if you’re relying on thin factory plates.

Fortunately, 4RunnerLifestyle.com carries a full lineup of high-quality armor from proven brands like RCI Offroad, CBI Offroad, Westcott Designs, and Cali Raised. These upgrades are trail-tested, built to last, and bolt on with no guesswork.

Here are the top armor upgrades every 4Runner owner should consider in 2025.

1. Full Skid Plate System (RCI & CBI)

Your 4Runner’s underbody is full of high-value components — oil pan, transmission, transfer case, and exhaust routing. Brands like RCI and CBI offer complete skid systems in aluminum or steel that protect the entire belly of the vehicle.

• Front skid protects the engine & radiator

• Transmission skid guards the pan & crossmembers

• Transfer case skid shields the drivetrain’s most vulnerable point

If you’re exploring Moab, Uinta trails, Lake Powell access roads, or anything with real rock exposure, a full skid system is one of the smartest investments you can make.

2. Rock Sliders (CBI, Cali Raised, Westcott Designs)

Rock sliders are essential the moment you start wheeling your 4Runner. They’re built to take the impact instead of your doors and rocker panels, and they double as a safe Hi-Lift jack point.

4RunnerLifestyle carries multiple real slider options:

• CBI Offroad sliders – Strong, angular, and available with kick-outs

• Cali Raised sliders – Great value, optional tread plating

• Westcott Designs sliders – Premium build quality and clean welds

Whether you hit Forest Lake, 5 Mile Pass, or just gnarly trail sections, sliders prevent costly body damage.

3. Rear Differential Skid Plate

Your rear diff is one of the lowest-hanging parts of the 4Runner — and it takes direct hits on ledges more often than anything else. A rear differential skid (available from RCI & CBI) adds a steel shield that protects the pumpkin and keeps the housing from cracking.

It’s a small piece with huge benefits for long-term vehicle health.

4. High-Clearance Rear Bumper Options

Factory 4Runner bumpers hang low, bend easily, and get smashed on steep departures. A high-clearance rear bumper, such as those from CBI Offroad, dramatically improves approach and departure angles while adding:

• Integrated recovery points

• Stronger steel construction

• Optional swing-out tire carrier support

• Better clearance for rock shelves and tight switchbacks

Ideal for overlanders and trail runners who need durability and utility.

5. Lower Control Arm Skid Plates

LCA skids are often overlooked, but LCAs are extremely exposed on the 4Runner — they catch rocks, roots, and debris on almost every trail. RCI’s LCA skids bolt on easily and keep your suspension geometry protected from direct impacts.

They’re lightweight, affordable, and one of the highest-value protection mods you can add.

Final Thoughts

Armor isn’t glamorous — but it’s what keeps your 4Runner driving home after a long day on the trail. From complete skid systems to sliders and high-clearance bumpers, the armor available at 4RunnerLifestyle.com delivers real protection, clean fitment, and trail-proven reliability.