The hub is shared. The fitment is not.
The 350Z, the 370Z and the current Z all run 5x114.3 with a 66.1 mm bore and M12 x 1.25 studs. So do the Infiniti G35, G37 and Q60, because they are the same FM platform underneath.
| Model | Years | Pattern | Bore | Studs |
|---|---|---|---|---|
| 350Z (Z33) | 2003-2009 | 5x114.3 | 66.1 mm | M12 x 1.25 |
| 370Z (Z34) | 2009-2020 | 5x114.3 | 66.1 mm | M12 x 1.25 |
| Z (RZ34) | 2023+ | 5x114.3 (believed) | 66.1 mm (believed) | M12 x 1.25 (believed) |
Two honesty notes on that table. The 370Z figures rest on a single source - the major databases leave the pattern and bore fields unpopulated on their 370Z pages, which is unhelpful but at least it is not a wrong answer. And the RZ34 we could not confirm at all. Nothing we found contradicts the assumption that it carries the Z34 hub forward, but nothing confirmed it either, so we are marking it as believed rather than verified.
That gives the Z a much larger usable wheel pool than the Z-specific listings suggest, and it is the reason a used G37 set can be a very good buy for a 370Z owner. But there is a catch, and it is the thing this article is really about.
Sharing a hub is not sharing a fitment
The pattern, bore and thread cross over between the Z cars and the Infinitis. The offsets that actually clear the bodywork do not.
The clearest example: the 350Z's specifications transfer directly to the G35 Coupe, which has extra clearance margin on top. They do not transfer cleanly to the G35 Sedan, which has narrower rear fenders and wants a more conservative rear offset, in the region of +35 to +40.
So "370Z wheels fit a G35" is true on the hub and wrong at the fender. Which one you care about depends on whether you are mounting the wheel or driving the car afterwards.
When someone offers you Infiniti wheels for a Z, or the reverse, the questions are: which body, what offset, and what tire. "Same bolt pattern" is where the conversation starts, not where it ends.
350Z factory wheels
| Trim | Years | Front | Front tire | Rear | Rear tire |
|---|---|---|---|---|---|
| Base / Enthusiast | 2003-2005 | 17x7.5 +30 | 225/50R17 | 17x8 +33 | 235/50R17 |
| Touring | 2003-2005 | 18x8 +30 | 225/45R18 | 18x8 +30 | 245/45R18 |
| Track | 2003-2005 | 18x8 +30 | 225/45R18 | 18x8.5 +33 | 245/45R18 |
| Base / Enthusiast / Touring | 2006-2009 | 18x8 +30 | 225/45R18 | 18x8.5 +33 | 245/45R18 |
| Track / GT / NISMO | 2006-2009 | 18x9 +30 | 245/40R18 | 19x10 +30 | 265/35R19 |
The 2006-2009 base fitment is confirmed two ways. The rest are single-source.
370Z factory wheels, and the number everybody quotes
| Package | Front | Front tire | Rear | Rear tire | Offset gap |
|---|---|---|---|---|---|
| 18 inch (base) | 18x8 ET43 | 225/50R18 | 18x9 ET15 | 245/45R18 | 28 mm |
| 19 inch Rays (Sport) | 19x9 ET47 | 245/40R19 | 19x10 ET30 | 275/35R19 | 17 mm |
| NISMO (Rays forged) | 19x9.5 ET40 or ET47 | 245/40R19 | 19x10.5 ET23 or ET30 | 285/35R19 | 17 mm |
The base 18 inch car runs +43 at the front and +15 at the rear. A 28 mm offset split front to rear is a genuinely unusual factory figure - most staggered cars run 10 to 17 mm - and ET15 is very low for a factory wheel on a road car.
It is also the reason 370Z owners have unusually wide latitude for aggressive rear fitment without spacers. The factory already put the rear wheel where most people are trying to get to.
But it is an 18-inch fact, not a 370Z fact. We are being emphatic about this because the +43/+15 figure circulates as though it applied to the whole model. It does not. If you own a 19 inch Sport or a NISMO, your car runs a 17 mm split like everything else, and anybody telling you otherwise has not looked at your car.
The NISMO offsets are genuinely disputed. One source gives +40 front and +23 rear for the Rays forged wheels. A database gives ET47 and ET30 - which are identical to its own figures for the ordinary 19 inch Sport package, and that makes them look like a carried-over row rather than a measured NISMO figure. We cannot prove that, so both are recorded. If you have a NISMO, do not order wheels against a published offset. Measure the wheel on the car.
The current Z, 2023 onward
| Trim | Front tire | Rear tire |
|---|---|---|
| Sport | 245/45R18 | 245/45R18 |
| Performance | 255/40R19 | 275/35R19 |
| NISMO | 255/40R19 | 285/35R19 |
Note the first row. The Sport trim is square - 245/45R18 at all four corners - while the Performance and NISMO are staggered. So "the Z is a staggered car" is wrong for the base model, and if you own a Sport you can rotate your tires front to back, which the other two cannot.
Factory wheel widths and offsets for the RZ34 we could not source from anywhere that actually publishes them. We are not going to estimate them.
Aftermarket fitment, 350Z
| Setup | Front | Rear | What it needs |
|---|---|---|---|
| Conservative | 18x8.5 +30 to +35 | 18x9.5 +30 to +35 | Nothing |
| Staggered, the popular one | 18x9.5 +22 | 18x10.5 +22 | Minimal fender work when lowered |
| Track, square | 18x10 +15 | 18x10 +15 | At least 3 degrees negative camber |
| Wide track | 10.5 inch and up | 10.5 inch and up | Aftermarket upper control arms |
A second source gives slightly different bands - 8 to 8.5 inches at ET30 to ET38 as the no-hassle zone, 9 inch at ET25 to ET35 front with 10 inch at ET22 to ET25 rear - which is close enough to be corroboration rather than conflict.
What rubs on a 350Z:
- The front upper control arm. This is the primary inboard limit on wide front wheels, and it is why 10.5 inches and wider needs aftermarket upper control arms. Like the GR86's strut perch, this is an inner clearance problem, so reaching for a lower offset makes the fender situation worse without fixing the arm.
- The rear fender lip, on lowered cars running +15 offsets with 275 section tires and up. Rolling is normal at that point.
- Brembo clearance on the Track trims - curved spoke designs clear, flat ones often do not. Diameter is not the test.
Aftermarket fitment, current Z
From a single source, so treat as indicative:
- Performance street and track: 19x9.5 ET18 front with 255/35-19, 19x10.5 ET15 rear with 275/35-19.
- 18 inch alternative: 18x9.5 ET18 front with 255/40-18, 18x10.5 ET15 rear with 275/35-18.
- Hardcore track: 18x10.5 ET15 square with 285/30-18, and a minimum of 3 degrees negative camber.
Torque
80 lb-ft on the 350Z from our source. We could not source a manufacturer document for any of the three cars. Door jamb placard, and re-torque at 100 kilometres - free on anything we fit.
Note that 80 lb-ft is a relatively low figure, which follows from the M12 x 1.25 stud. If you have come from a Mustang at 150 or a Camaro at 140, do not carry the number across. Over-torquing an M12 x 1.25 stud stretches it.
Wheels we can get
5x114.3 is the deepest catalogue in the performance market. The thing to watch on a Z is the bore: 66.1 mm, which is a Nissan and Infiniti figure and not the 70.5 mm a Mustang wheel is cut for or the 67.1 mm a Mazda wheel is cut for. Same pattern, three different bores. Rings or a correctly bored wheel, every time.
- Konig - light flow-formed wheels in exactly the widths and offsets these cars want, including the low rear offsets a 370Z can use. Our usual starting point.
- Motegi Racing - motorsport-derived, light for the money, good in 18 and 19 inch.
- Fast Wheels - broad catalogue and easy to spec a staggered set from.
- Braelin - more finished, restrained designs, which suit a Q50 or G37 better than a track-look wheel.
- RTX - practical and well priced, good for a winter set.
- Replika - factory-style designs at a fraction of dealer money, useful if you have curbed one of a staggered set.
The short version
- 350Z, 370Z and the current Z are all 5x114.3 / 66.1 / M12 x 1.25, shared with the G35, G37 and Q60.
- A shared hub is not a shared fitment. The G35 Sedan wants a more conservative rear offset than the Coupe or the Z.
- The +43 front and +15 rear figure is real, and it applies to the base 18 inch 370Z only. The 19 inch cars run a 17 mm split.
- NISMO offsets are disputed. Measure the wheel rather than ordering against a published number.
- The current Z Sport is square. Performance and NISMO are staggered.
- Bore is 66.1, not the 70.5 or 67.1 that other 5x114.3 wheels are cut for.
All specifications above are North American market only.
Confirm the fitment with us before you order. Give us the year, model and trim and tell us what you want the car to look like, and we will tell you what will actually fit it.
About SHC Auto
We have been fitting wheels and tires in Victoria since 1991, out of the same shop at 474 Bay Street. Alongside wheels and tires we do suspension and lift work, window tint, paint protection film, vinyl wraps, ceramic coating, paint correction and detailing, caliper painting, chrome delete, and vehicle graphics and signage. We also do the things most shops send out: curb rash repair and wheel refinishing, TPMS sensor supply and fitting, tint removal, and re-torque after install.
The catalogue on our website is a fraction of what we can actually order. We are an authorized dealer for more than three hundred aftermarket brands, and a good number of them never made it onto the site because there is no data feed for them. That includes most of the lift and levelling kit market. If you cannot find something, ask us rather than assuming we cannot get it.
SHC Autographx and Tires
474 Bay Street, Victoria, BC
Monday to Friday, 9:00 to 5:30. Closed weekends.
Free shipping anywhere on Vancouver Island.
Planning a set of wheels? Bring the car by 474 Bay Street. It is much faster to look at what you have and tell you what it will take than to work it out over email.