The 2021 Toyota 4Runner TRD Sport introduced a street-oriented setup to the legendary, long-running fifth-generation SUV lineup. Toyota brought sportier handling and unique aesthetic touches to a truck-based platform known primarily for rugged trail utility. If you're cross-shopping used mid-size SUVs or trying to understand where this specific trim fits against models like the Off-Road or Limited, you'll find that the TRD Sport bridges highway comfort and traditional truck grit—though it skips heavy-duty hardware like locking differentials.
Underneath, it shares the standard 4.0-liter V6 engine pumping out 270 horsepower and 278 lb-ft of torque, mated to an aging 5-speed automatic transmission. While fuel economy remains modest at roughly 16 mpg city and 19 mpg highway, the real story here is how the suspension tuning alters daily driving behavior.
Suspension Tuning and Highway Dynamics
Traditional 4Runners roll heavily into corners due to their high center of gravity and traditional body-on-frame architecture. Toyota tackled this dynamic in the TRD Sport by borrowing the Cross-Linked Relative Shock System (X-REAS) from the upscale Limited trim.
X-REAS automatically adjusts damper force when it detects cornering g-forces or road bumps. By cross-linking opposing shocks with a central control valve, the system effectively squelches nose-dive during hard braking and reduces body roll when you carve through highway off-ramps. As highlighted in recent articles by Reuters, the results are worth noting.
- Front Suspension: Independent double-wishbone with coil springs and gas-filled shock absorbers.
- Rear Suspension: Four-link rigid type with coil springs, panhard rod, and gas-filled shock absorbers.
- Wheels: Unique 20-inch machined-face alloy wheels wrapped in highway-terrain tires, replacing the chunky 17-inch setup found on muddy trails.
This setup transforms daily commuting. You won't get the pillow-soft ride of a unibody crossover like the Toyota Highlander, but you'll experience significantly less freeway wander and a flatter cornering stance than any standard off-road 4Runner variant.
Exterior Styling and Interior Upgrades
The exterior of the TRD Sport leans hard into an aggressive urban aesthetic. It drops the traditional chrome accents in favor of gloss-black exterior trim on the hood scoop, grille surround, and rear bumper garnish. A bold front spoilerlip gives it a lowered visual stance, while standard LED headlights and fog lights sharpen front visibility.
Inside, cabin tech gets a welcomed lift without straying from utilitarian roots. The focal point remains an 8-inch touchscreen interface supporting Apple CarPlay, Android Auto, and Amazon Alexa.
- SofTex-trimmed seats feature gray contrast stitching and embroidered "TRD" logos on the headrests.
- Power-adjustable driver's seat comes standard, with heated front seats available.
- All-weather floor liners protect the footwells from mud and snow tracked in from weekend adventures.
Cargo space remains massive. You get 47.2 cubic feet behind the second row, expanding to 89.7 cubic feet with the rear seats folded flat. For families or gear-heavy hobbyists, this utility matches any traditional mid-size SUV on the market.
Capability Compromises: What You Give Up
Choosing the TRD Sport means trading away serious rock-crawling hardware. Because it's engineered for pavement manners and light gravel roads, it leaves behind several key features standard on the TRD Off-Road and TRD Pro models:
- No Rear Locker: It lacks the electronic locking rear differential required to crawl over severe boulder fields.
- No Multi-Terrain Select or Crawl Control: Electronic aids that modulate throttle and braking in deep sand or mud are absent here.
- Lower Ground Clearance: The large 20-inch wheels and lower front valance reduce approach angles compared to models riding on 17-inch wheels and chunky all-terrain rubber.
If your weekend consists of forest service roads, camping sites, and snowy winter commutes, the TRD Sport handles it easily—especially if you opt for the part-time four-wheel-drive system with a two-speed transfer case. Just don't plan on tackling Moab's toughest ledges straight off the showroom floor.
Common Maintenance and Reliability Realities
Like every 5th-generation 4Runner, the TRD Sport relies on mechanical simplicity that prioritizes bulletproof reliability over cutting-edge efficiency. The 1GR-FE 4.0L V6 engine easily clears 250,000 miles with basic fluid changes. However, owners should keep an eye on a few specific areas:
- X-REAS Leaks: While the hydraulic system improves handling, high-mileage units can develop fluid leaks at the center control valve or shock absorbers. Replacing the system is expensive, leading some owners to swap standard aftermarket struts if a leak occurs.
- Transmission Gearing: The 5-speed automatic feels sluggish when passing at highway speeds, requiring heavy throttle inputs that drop fuel economy further.
- Paint and Windshield Chips: The boxy, upright front fascia acts as a magnet for highway rock chips on the windshield and leading edge of the hood.
Frequently Asked Questions
Does the 2021 4Runner TRD Sport have four-wheel drive?
It's available in both rear-wheel drive (2WD) and part-time four-wheel drive (4WD) configurations depending on the regional market and buyer preference. If you live in a snowy climate, verify that the specific window sticker lists the 4WD system.
How does TRD Sport compare to TRD Off-Road?
The TRD Sport focuses on on-road handling via X-REAS suspension and 20-inch wheels. The TRD Off-Road focuses on dirt capability, adding a locking rear differential, Multi-Terrain Select, Crawl Control, and 17-inch wheels with beefier sidewalls.
What is the towing capacity of the TRD Sport?
It is rated to tow up to 5,000 pounds, supported by a standard integrated hitch receiver and a 4- and 7-pin wiring harness.
Can you put larger off-road tires on a TRD Sport?
Yes, but the 20-inch wheels limit sidewall height. Owners wanting serious off-road rubber usually swap the factory 20-inch wheels for 17-inch rims to allow for tires with more flex and puncture resistance.
