The aftermarket for the 6th gen 4Runner is still catching up — but sliders are one of the first hard parts to actually ship.
Rock sliders are the first piece of trail armor most 4Runner builders add after a lift, and for good reason. A door panel dragging across a rock ledge is an expensive mistake that proper sliders prevent entirely. The 6th gen changed enough from the 5th that nothing from the old platform transfers — different rocker geometry, different mounting points, updated body lines. But unlike bumpers and skid plates, which are still mostly in pre-order purgatory, a few brands have actual sliders for the 6th gen shipping right now. Here's what's available, what the real differences are, and what to factor in before you order.
Why Sliders, Not Running Boards
The factory running boards — or even aftermarket step bars — are not rock sliders. Running boards are designed to help you step into the truck. They're not load-rated for vehicle recovery and they're not built to protect the rocker panel from lateral rock impacts. When a trail drops you sideways onto a ledge, the rocker panel takes the full force. Running boards buckle. Real sliders take it.
A proper slider sits tight to the rocker, angles outward slightly to deflect rock contact, and is built to handle the entire side weight of the truck without deforming. They also function as jacking points — which matters when you're trying to use a Hi-Lift on uneven ground and need a solid surface to jack against.
DOM vs HREW: The Steel Choice That Actually Matters
Most sliders ship in two steel variants: HREW (Hot Rolled Electric Welded) and DOM (Drawn Over Mandrel). This distinction gets glossed over in most buying guides.
HREW is cheaper, easier to weld, and adequate for light trail use — rocky wash crossings, mild ledges, forest road scraping. If you're not doing anything technical, HREW is fine and the cost savings are real.
DOM is stronger, holds its shape better under high-impact loads, and is what you want for actual rock crawl terrain. The internal consistency of DOM tubing means it compresses rather than collapses under load. If you're running anything Rubicon-level, pay the premium.
Westcott Designs offers both options on their 6th gen slider — DOM runs about $100–$150 more than HREW for the same design. CBI builds in DOM steel standard on all their kits.
What's Actually Shipping for the 6th Gen Right Now
The 2025+ 4Runner uses different rocker and body mount geometry from the 5th gen — nothing carries over. Brands had to re-engineer from scratch, and fitment notes matter more on a newer platform where real-world install data is still accumulating.
Westcott Designs 6th Gen Rock Sliders — $575–$850
Westcott was one of the first brands to ship sliders specifically for the 6th gen, and they're in stock now. The kit comes in two angle configurations: 0° (flat, close to the body) and 20° (angled outward for better rock deflection). You can also add a top plate for a wider step surface. HREW or DOM at checkout.
The 20° angle with top plate is the configuration most builders are running. At around $750 in DOM, the pricing is solid for a made-in-the-USA bolt-on slider. Install is to factory mounting points — no cutting required. Fitment feedback from the 6G4R.com forum has been mostly positive, with Westcott updating brackets early in production to address a minor gap near the rear door on some builds. Verify you're getting the latest production version if ordering now.
CBI Offroad 6th Gen Sliders — from $1,300
CBI's sliders are at the top end of the price range and are worth it if you're building a serious rig. DOM steel standard, rated as a full vehicle support point, finished in textured black powder coat. The integrated step is functional and comfortable — if you're running 3 inches of lift or more, having a real step built into the slider matters more than you'd think for getting in and out on trail.
CBI has a long track record on 5th gen sliders taking real abuse without deforming. The 6th gen kit carries that reputation. The price is high, but it's a buy-once situation for a truck you're going to build hard.
Bolt-On vs Weld-On
All major 6th gen slider kits available right now are bolt-on. Weld-on sliders are stronger but require a shop with the right equipment, add permanent modifications to the truck, and aren't reversible. For most builders on a newer vehicle that may still carry a structural warranty, bolt-on is the right call. The best bolt-on designs are strong enough for anything short of professional-level rock crawl — and the install is something you can do in your driveway in an afternoon.
What to Expect to Pay
- Entry-level (HREW, basic design): $500–$600
- Mid-tier (DOM, step design, reputable brands): $700–$900
- High-end (DOM, integrated step, dual jacking point): $1,200–$1,400+
Budget 2–4 hours for a DIY install. Bolts on newer trucks are tight, and you'll want to torque every mount point to spec. If you're removing factory running boards first, factor in that time too — some builds require pulling the stock board before the slider goes on.
The Bottom Line
If you're planning any real trail time in your 6th gen, sliders belong in the first five mods you buy — not something you add after the trail teaches you why you needed them. Westcott is the accessible, in-stock choice right now with real fitment data behind it. CBI is the premium play for a build you're taking seriously. Both are shipping. Wait on bumpers and skid plates if you have to — don't wait on sliders.
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