Toyota Japan lists the Aqua as its own model and publishes a short question-and-answer page, in PDF form, with the tyre and wheel sizes fitted at the factory. This guide sets out what those pages print, how far we can trust their layout, and what a buyer of aftermarket or second-hand wheels can and cannot take from them. The translations are ours. We read two versions of the page, one starting in September 2025 and one starting in July 2026.
The Short Version
- Four holes, not five. Every row prints 100 for the PCD and 54 for the hub bore, with four holes. That gives 4×100 with a 54 mm hub bore.
- Sizes by diameter. The pages show 15×6J (alloy and steel) with an inset of 45, 16×6J with an inset of 50, and, in the newer version, 17×7J with an inset of 50.
- The 16-inch is an option for two-wheel-drive cars only. The page marks it as a manufacturer option and says it applies to 2WD, as we read it.
- Nut fastening. The rows say nut, which matters if you are matching a wheel’s seat to the car.
- Grade pairing is only partly readable. One row carries an “excluding Z” style label and the newer version labels a GR SPORT row; the rest cannot be paired reliably.
What Toyota’s Page Prints
The July 2026 version is headed as applying from July 2026, and the September 2025 version from September 2025. A marker legend says a filled circle means standard equipment and a triangle means a manufacturer option. Units are given as approximate millimetres. Our reading of the July 2026 table is below.
| Tyre | Wheel | Inset (ET) | PCD | Hub bore | Holes | Marker |
|---|---|---|---|---|---|---|
| 185/65R15 88S | 15×6J alloy | 45 | 100 | 54 | 4 | Standard |
| 195/55R16 87V | 16×6J alloy (2WD only) | 50 | 100 | 54 | 4 | Option |
| 185/65R15 88S | 15×6J steel | 45 | 100 | 54 | 4 | Standard |
| 205/45R17 84W | 17×7J alloy (row marked GR SPORT) | 50 | 100 | 54 | 4 | Standard |
The steel 15-inch row is preceded in the text by labels that include “G”, “X” and “U”. The September 2025 version showed the first three rows of this table and no 17-inch row. A column of 19s and 14s sits under the hole-diameter heading; we do not rely on it. The page does not print nut or bolt type beyond the word nut, tightening torque or load rating.
Source and Its Limits
The sources are Toyota Japan’s factory tyre and wheel size pages for the Aqua: the version starting July 2026 and the version starting September 2025. Toyota’s index lists further versions that we did not read. These are manufacturer statements of what was fitted at the factory, not statements of what else will fit. We saw no sizes for cars sold before the first date, so we say nothing about them here.
What This Means When Shopping
- Bolt pattern and hub. A wheel for this car needs a 4×100 pattern and to clear a 54 mm hub bore. A wheel with a larger centre hole can be used with a hub ring, but we have not read any Toyota guidance on that; our reference on hub bore explains how to measure it yourself.
- Count the holes. A five-hole wheel will not fit a four-hole hub. Our Prius guide covers a different Toyota whose wheels are not interchangeable with the four-hole figures printed here.
- Inset. Toyota’s inset figures are 45 and 50. A wheel with a different inset sits further in or out relative to the fender.
- Another four-hole Toyota. The Yaris page we read (starting July 2022) also prints a PCD of 100, four holes and a 54 mm hub bore; our Vitz / Yaris guide covers that car. The pattern alone does not make a wheel suitable.
Importing
In the US, the 25-year import exemption (49 CFR 591.5(i)) applies to a vehicle that is 25 or more years old, counted from the date of manufacture. As arithmetic only, a car built in September 2025 would reach 25 years in September 2050. We have not verified any build month, and the dates on Toyota’s pages are the dates of the page versions, not build dates. We did not check the import rules of other countries.
What We Could Not Verify
- Which grade carries each size. Only fragments of the grade labels can be tied to rows.
- Whether the 16-inch option is limited to 2WD in every grade, or only as the page words it.
- Whether the September 2025 version’s omission of a 17-inch row means the size was not offered then or was simply not listed.
- The model’s generations, chassis codes and launch date, and the versions of Toyota’s page that we did not read.
- Whether non-factory wheel sizes fit. Toyota’s pages list only factory fitments.
- Nut or bolt type, tightening torque and load rating, none of which the pages print.
- The specification of cars sold outside Japan under the Aqua name or any other.
- Any import rules outside the US 25-year rule as stated above.
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