The Short Version
- 4×114.3 on the Sunny and the Sunny Truck alike.
- The hub bore is 73 mm — at the front only. RS Watanabe prints exactly that: フロントノミφ73.
- The rear is deliberately not stated, and on a live-axle car you must not assume it matches.
- Sunny: 13×6.0J at +21. Sunny Truck: 13×5.5J at +16. Narrower and lower on the truck.
Front Only. That Is the Whole Article.
RS Watanabe’s Nissan table does something unusual on these two rows: it prints the hub bore inside the fitment cell, as フロントノミφ73 — “front only, φ73”.
Not “φ73”. Not “bore to 73”. Front only.
The reason is the rear axle. These are live-axle cars: the rear wheels mount to axle flanges rather than to hub carriers, and there is no reason for the register to be the same diameter as the front. RS Watanabe knows the front figure and declines to give a rear one, which is the correct thing for them to do and a useful warning for you.
So if you are ordering hub-centric rings for a Sunny or a Sunny Truck: 73 mm gets you the front axle. Measure the rear yourself. Buying four identical rings on the strength of one published number is exactly the mistake this note exists to prevent.
What RS Watanabe Publishes
| Car | PCD | Wheel | Offset | Maximum | Hub note |
|---|---|---|---|---|---|
| Sunny (B110 / B210 / B310 combined into one row) | 4×114.3 | B 13×6.0J | +21 | 14×6.0J +20 | front only φ73 |
| Sunny Truck (Sanitora) | 4×114.3 | B 13×5.5J | +16 | 14×6.0J +20 | front only φ73 |
Note that RS Watanabe merges B110, B210 and B310 into a single line with one specification. They also give no chassis codes at all — the column is empty — so the codes in this article’s title come from the cars’ names rather than from the source.
The Sunny Truck Ran for Twenty-Three Years
The Sunny Truck — Sanitora in Japan — was built from 1971 to 1994. That is an extraordinary run for a small pickup, and it means a late one and an early one are separated by more than two decades of running changes, including a facelift from round to square headlights.
RS Watanabe gives one row with no year breakdown. So we cannot tell you whether the fitment held constant across that entire span, and we would not assume it did. If you are buying for a Sanitora, the year matters and the table does not know it.
The Databases Have Nothing
Worth stating so you do not waste time looking. The Japanese factory wheel database’s Sunny coverage begins with the B12 and FB13 generations in 1989. Its Datsun truck listing turns out to be the unrelated full-size Nissan pickup from 1989 onward, not the Sunny-based Sanitora at all.
RS Watanabe is the sole source for all three of these vehicles.
Sizing
13×6.0J at +21 for the car and 13×5.5J at +16 for the truck are the period baselines, with 14×6.0J at +20 given as the maximum for both. That is a narrow band, and it reflects arches that have almost nothing to give.
The Sanitora in particular has a following overseas that runs well beyond what these numbers suggest — a lot of them end up considerably wider. That is a fabrication project, not a fitment question.
Importing
The B110 and B310 are long past the US 25-year mark. The Sunny Truck ran to 1994, so even the final cars cleared in 2019. Everything here is importable.
The Sanitora was never sold new in North America, which is part of why it has the cult status it does.
What We Could Not Verify
- Rear hub bore for either vehicle. Deliberately not published, and not to be assumed equal to the front.
- Whether the single Sanitora row holds across the full 1971–1994 run.
- Exact chassis codes. RS Watanabe’s own code column is blank for both rows.
- Whether B110, B210 and B310 genuinely share one specification, as the merged row implies.