Bora 1.5″ Wheel Spacers for Toyota 4Runner | Hubcentric Bolt-On Kit
Our 1.5-inch wheel spacers are precision-engineered specifically for Toyota 4Runner models, delivering the aggressive stance and improved handling you’ve been searching for. Each kit includes hubcentric spacers that eliminate vibration by centering perfectly on your factory hub, plus 10 heat-treated Grade 8 studs per wheel for maximum safety and durability.
We machine every Bora spacer from 6061-T6 billet aluminum in our ISO-certified facility, then finish each set with a corrosion-resistant anodized coating that stands up to mud, salt, and trail conditions. The 1.5″ width pushes your wheels outward for improved stability on off-camber terrain while creating clearance for larger brake kits and aggressive tire sizes. Installation takes about 90 minutes with basic hand tools, and our hubcentric design means you’ll never deal with wheel wobble or balance issues that plague cheaper slip-on spacers.
Every kit is backed by our 10-year structural warranty and includes detailed torque specifications for your specific 4Runner generation. Whether you’re building a weekend trail rig or simply want that flush fitment look, these spacers transform your 4Runner’s stance while maintaining the ride quality and safety Toyota engineered into your truck.
- 1.5-inch width per spacer for 3 inches total track width increase
- Hubcentric design with 106mm bore diameter for vibration-free fitment
- 6061-T6 billet aluminum construction with Type III hard anodizing
- 10 heat-treated Grade 8 studs per wheel (40 total studs included)
- Compatible with 2010-2024 Toyota 4Runner all trims
Why Hubcentric Design Matters for Your 4Runner
Unlike universal slip-on spacers that rely solely on lug nuts to center your wheel, our hubcentric wheel spacers feature a machined pilot ring that mates precisely with your 4Runner’s factory hub. This 106mm bore diameter matches Toyota’s specifications exactly, transferring the vehicle’s weight through the hub rather than through fasteners.
The result is installation that feels exactly like your factory setup—no vibration at highway speeds, no steering wheel shake, and no concerns about lug nut fatigue from supporting lateral loads. We’ve tested our hubcentric design philosophy on thousands of 4Runner builds from mall crawlers to overland rigs running 35-inch tires, and the feedback is consistent: drivers forget the spacers are even installed.
Fitment Specifications Across 4Runner Generations
Our 1.5-inch spacers are engineered to fit 2010-2024 Toyota 4Runner models including SR5, TRD Sport, TRD Off-Road, TRD Pro, Limited, and Nightshade editions. All these generations share the same 6×139.7mm bolt pattern and 106mm hub bore, which means one spacer design covers 15 model years without compromise.
The 1.5″ width is calculated specifically for 4Runner geometry—wide enough to push wheels flush with fenders when running stock offset wheels, yet conservative enough to avoid scrubbing on factory suspension. If you’ve installed a lift kit or are planning to upgrade to 33-inch or 35-inch tires, this width provides the additional clearance you need for full steering lock and suspension travel.
Installation Process and Torque Requirements
Installing Bora wheel spacers on your 4Runner follows Toyota’s factory wheel removal procedure with one additional step. Start by torquing the 10 included studs into each spacer using red Loctite and our specified 20 ft-lbs torque setting—this creates the permanent stud assembly. Once the Loctite cures for 24 hours, mount the spacer to your hub using the factory studs at Toyota’s OEM specification of 83 ft-lbs.
After the spacer is seated flush against the hub face, install your wheel onto the new studs protruding from the spacer. We include open-ended lug nuts designed for the extended stud length, which you’ll torque to 83 ft-lbs to match 4Runner specifications. The entire process takes about 20-25 minutes per wheel once you’ve done the first one.
Wheel Spacers for Other Toyota Models
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Common Questions About Bora 4Runner Wheel Spacers
Yes, our 1.5-inch spacers are specifically designed to work with factory 4Runner wheels and tire sizes. This width pushes your wheels outward to sit flush with the fender line without causing rubbing on stock suspension. If you’re running a lift kit or larger tires, the additional clearance helps prevent contact during full steering lock and suspension articulation.
The spacers maintain your factory wheel offset geometry while widening your track by 3 inches total. This means your wheels will appear more aggressive without requiring new wheels or modifications to your suspension components.
Hubcentric spacers feature a machined pilot ring that centers on your 4Runner’s factory hub, just like your wheels do from the factory. This design transfers the vehicle’s weight through the hub rather than through the lug nuts, eliminating vibration and maintaining proper load distribution.
Universal slip-on spacers lack this pilot ring and rely entirely on lug nuts to center the wheel. This can cause vibration, uneven tire wear, and accelerated lug nut fatigue. Our hubcentric design costs more to manufacture because we machine each spacer to Toyota’s exact 106mm hub bore specification, but the result is factory-quality fitment and performance.
Most 4Runner owners with basic mechanical skills can install these spacers at home. The process requires a torque wrench, jack and jack stands, and about 90 minutes of time. We include detailed instructions with torque specifications for each step, and the installation follows the same process as removing and reinstalling your wheels.
The most important steps are torquing the studs into the spacer body with Loctite and allowing 24 hours cure time before mounting to your vehicle. If you’re uncomfortable with wheel work or don’t have a torque wrench, any tire shop or mechanic can install them in about an hour. We recommend professional installation if you’re not experienced with wheel removal and torque procedures.
Properly installed wheel spacers do not void your Toyota warranty. Under the Magnuson-Moss Warranty Act, a manufacturer cannot deny warranty coverage simply because you’ve installed aftermarket parts unless they can prove those parts caused the specific failure you’re claiming.
Our spacers bolt between your hub and wheel without modifying any Toyota components, so they have no impact on powertrain, suspension, or other systems covered under warranty. We recommend keeping your installation documentation and torque records in case you ever need to demonstrate proper installation. If you have concerns, discuss the installation with your Toyota service advisor before proceeding.
Yes, you’ll need longer lug nuts because your factory nuts are sized for the stock stud length. We include a complete set of 20 open-ended lug nuts with every 4Runner spacer kit, so you have everything needed for installation right in the box.
These lug nuts are manufactured to the same M12x1.5 thread pitch as your factory hardware and are designed for the extended stud length. The open-ended design accommodates the longer studs without bottoming out. We recommend replacing these lug nuts every 50,000 miles or if you notice any thread damage during regular inspections.
Our 1.5-inch wheel spacers are rated to exceed the Toyota 4Runner’s gross vehicle weight rating of 6,100-6,300 pounds depending on your model year and trim. We design and test each spacer to handle 300% of the maximum expected load, providing a significant safety margin for loaded vehicles, towing, and off-road impacts.
The 6061-T6 aluminum construction and Grade 8 stud hardware we use are the same materials aerospace and heavy equipment industries rely on for critical applications. We perform finite element analysis and physical load testing on every design to validate these ratings before releasing products to market.
We recommend checking lug nut torque after the first 25-50 miles of driving to account for initial settling as components seat together. After this initial check, follow Toyota’s standard maintenance schedule—we suggest verifying torque every 5,000 miles or during each oil change.
Before any off-road trip or long highway drive, it’s good practice to verify all lug nuts are torqued to specification. The inspection takes about 5 minutes with a torque wrench and provides peace of mind. If you notice any lug nuts requiring adjustment during routine checks, inspect the wheel and spacer mounting surfaces for debris or damage that might prevent proper seating.