Why can't I run 16s on a 2023 Toyota 4Runner TRD Off-Road?

Q: What is the minimum wheel diameter?

17 inches — The 5th-gen 4Runner's 338mm front rotors and 4-piston calipers need a 17-inch wheel; 16s do not clear on 2010+ cars.

The 5th-gen 4Runner's 338mm front rotors and 4-piston calipers need a 17-inch wheel; 16s do not clear on 2010+ cars. Minimum diameter is 17 inches; the front rotor is 338x28mm, 4-piston.

IN SHORT

The 5th-gen 4Runner's 338mm front rotors and 4-piston calipers need a 17-inch wheel; 16s do not clear on 2010+ cars.

2023 Toyota 4Runner TRD Off-Road on its factory wheels

01The brake fact

FRONT ROTOR

338x28mm, 4-piston

MINIMUM WHEEL

17"

FACTORY

17"

Source: Toyota 5th-gen 4Runner specifications; Tire Rack by-vehicle results for the 2023 4Runner list 17-inch as the only factory diameter (780 models, Sep 4 2026).

TRD Off-Road: 17x7 ET15 on P265/70R17 (Bridgestone Dueler H/T 684 II or Dunlop Grandtrek AT20 from the factory). TRD Pro: 17x7 ET4 matte-black TRD wheels, same tire. Limited: 20x7 ET15 on 245/60R20.

The enthusiast standard is 17x8.5 ET0 on 285/70R17 (a 33-inch tire). It fits at stock height with minor rubbing on the fender liner and body mount at full lock; most owners trim or do the body-mount chop. 275/70R17 on 17x8 ET25 is the no-rub option.

Negative offsets (ET-12 and below) push the wheel out past the fender — they look right on 33s but rub more and stress the bearings. ET0 to ET+12 is the sweet spot on a stock-height truck.

Tire Rack's by-vehicle list for the 2023 4Runner: 780 wheel models, the largest catalog of any car in this app — 17, 18 and 20-inch, a few 22s. Method, KMC, Fuel, Black Rhino, Icon, Konig, Enkei Truck, Fifteen52 HD all stocked.

Lug: 12x1.5. Factory alloys use a conical-seat nut; aftermarket wheels ship their own seat spec — confirm before torquing to 83 lb-ft.

This truck (Lunar Rock TRD Off-Road) is on 17-inch TRD Pro-style matte black wheels and Bridgestone Dueler H/T — a common owner upgrade from the standard TRD Off-Road wheel.

17-inch minimum. 16s don't clear the 338 mm front rotors on the 5th gen. Front 338x28 mm, 4-piston, rear 312 mm, single-piston.

02Wheels at the minimum diameter

METHOD MR305 NV — 17×8.5 ET0 · 29 lb · $1,136 the set · limited stock
METHOD MR703 — 17×8.5 ET0 · 27.9 lb · $1,316 the set · limited stock
KMC KM549 GRS — 17×8.5 ET0 · weight not published · $1,400 the set · in stock
BLACK RHINO ARSENAL — 17×9.5 ET12 · 32.1 lb · $1,552 the set · in stock
ICON ALLOYS REBOUND — 17×8.5 ET0 · 27.15 lb · $1,148 the set · limited stock
KONIG HT1 — 17×8.5 ET-6 · 23.9 lb · $1,162 the set · limited stock
ENKEI TRUCK TRAIL-CROSS — 17×9 ET0 · 29.5 lb · $831 the set · in stock
FIFTEEN52 TURBOMAC HD — 17×8.5 ET0 · 27.3 lb · $1,242 the set · limited stock

→Verified for this car

METHOD

MR305 NV

17×8.5 ET0 · 29 lb / corner · limited stock

$1,136 / set, list price Sep 4, 2026

Check fit & buy →

METHOD

MR703

17×8.5 ET0 · 27.9 lb / corner · limited stock

$1,316 / set, list price Sep 4, 2026

Check fit & buy →

Fitment is computed from published vehicle data and the retailer's listed sizes (catalog 2026-09-04-tirerack-d, verified on Sep 4, 2026). Prices are list prices on that date. Verify with your installer before you buy. Buy links may be affiliate links.

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