Porsche 911 Carrera 4 / 4S & Targa 4 / 4S 997 (2006–2012) Wheel Fitment Guide
The 997 Carrera 4, 4S, Targa 4 and Targa 4S use the wide rear body, a 5×130 bolt pattern, a 71.6mm center bore and M14×1.5 ball-seat lug bolts, with factory offsets of ET57 front and ET51 rear on 18s and 19s. This guide covers the 2006–2012 cars (997.1 and 997.2), brake clearance and documented aftermarket setups.
About this guide: Fitment data is compiled from owner builds on Rennlist and customer cars in wheel-maker fitment galleries, cross-checked against vendor fitment documentation and Porsche's approved wheel certificates. Use it as research for your build; ride height, tires, and alignment are your installer's call.
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OEM Setups
Factory Wheel & Tire Configurations
All four wide-body trims share the hardware below. Porsche's approved-wheels certificates list one main summer package in two diameters: 8J ET57 front and 11J ET51 rear, on 18-inch wheels for the Carrera 4 and 19-inch wheels for the 4S models, plus an 8.5J / 11.5J option. The 8J ET57 / 11J ET51 wheel is the reference for every "mm out" figure below.
Porsche 911 Carrera 4 / 4S & Targa 4 / 4S 997 Hub & Hardware Specs
All wide-body trims — 2006–2012
Bolt Pattern5×130
Center Bore71.6mm
Fastener TypeLug Bolts
Thread PitchM14×1.5
Seat TypeBall (spherical) seat
Torque Spec96 lb-ft (130 Nm) silver bolts to MY2011 · 118 lb-ft (160 Nm) black bolts and MY2012 silver
Factory OffsetET57 front / ET51 rear
Brake System997.1 C4 / Targa 4: 318mm front / 299mm rear · 997.1 4S and all 997.2: 330mm / 330mm · PCCB optional
18″ Carrera III (997.1) / Carrera IV (997.2)
Standard — Carrera 4 & Targa 4
Front Wheel8J×18 ET57
Rear Wheel11J×18 ET51
Front Tire235/40ZR18
Rear Tire295/35ZR18
ConstructionAluminum Alloy
Part Numbers997.1 997.362.136.00 / .142.00 · 997.2 997.362.137.01 / .143.00
Applies ToCarrera 4 & Targa 4 (2006–2012)
The 18-inch package for the Carrera 4 models: the Carrera III on 997.1 cars and the Carrera IV on 997.2 cars, at the same size and offsets. Porsche approves this size for the Carrera 4 in summer, and it also appears on both certificates as a winter size for all four trims. It clears the factory steel brakes on every wide-body trim.
19″ Carrera S (997.1) / Carrera S II (997.2)
Standard — Carrera 4S & Targa 4S
Front Wheel8J×19 ET57
Rear Wheel11J×19 ET51
Front Tire235/35ZR19
Rear Tire305/30ZR19
ConstructionAluminum Alloy
Part Numbers997.1 997.362.156.00 / .162.00 · 997.2 997.362.157.00 / .163.01
Applies ToCarrera 4S & Targa 4S (2006–2012) · approved on Carrera 4
The 4S models' 19-inch wheels, the 997.1 Carrera S and 997.2 Carrera S II, use the 18-inch package's offsets with a wider 305 rear tire. They are the reference for every ladder below. Porsche's winter certificate notes the 997.1 Carrera S front wheel can't be fitted to cars with ceramic brakes.
19″ Optional Wheels — Carrera Classic, SportDesign, Turbo, Turbo II
Optional — all wide-body trims
Front Wheel8J×19 ET57
Rear Wheel11J×19 ET51
Front Tire235/35ZR19
Rear Tire305/30ZR19
ConstructionAluminum Alloy
Part NumbersClassic .156.03 / .162.03 · SportDesign .156.04 / .162.06 · Turbo .156.02 / .162.02 · Turbo II .157.02 / .163.02
Applies ToCarrera 4 / 4S & Targa 4 / 4S (2006–2012)
Four optional 19-inch designs share the standard 19-inch size and offsets, so they sit exactly where it does. Porsche also lists a narrow-body 19-inch Turbo rear at 11J ET67, approved on these cars only with a 17mm spacer that brings it to ET50. Check the stamp on a used set before relying on it.
19″ Carrera Sport (997.1) / Sport Classic (997.2)
Optional — all wide-body trims
Front Wheel8.5J×19 ET55
Rear Wheel11.5J×19 ET50
Front Tire235/35ZR19
Rear Tire305/30ZR19
ConstructionAluminum Alloy
Part NumbersCarrera Sport .156.55 / .162.56 (rear ET67: .162.55) · Sport Classic .157.56 / .163.56
Applies ToCarrera 4 / 4S & Targa 4 / 4S (2006–2012)
The wider factory option, half an inch wider at each axle: about 4mm further out front and 7mm at the rear than the standard 19s. Some 997.1 Carrera Sport rears are the narrow-body ET67 version, which Porsche approves on wide-body cars only with a 17mm spacer. Check the rear stamp before ordering a matching set.
18″ and 19″ Porsche Winter Wheels
Winter — all wide-body trims
Front Wheel8J×18 ET57 or 8J×19 ET57
Rear Wheel11J×18 ET51 or 11J×19 ET51
Front Tire235/40R18 or 235/35R19
Rear Tire295/35R18 or 295/30R19
ConstructionAluminum Alloy
Part NumbersChains 997.044.600.18
Applies ToCarrera 4 / 4S & Targa 4 / 4S (2006–2012)
Porsche's winter certificates use the summer wheels' size and offsets on 18-inch or 19-inch winter tires, with a 295 rear on both diameters. The 18-inch winter set is approved on the 4S models too, so it clears the factory steel brakes. Snow chains are approved with spacers removed, at up to 30 mph.
Aftermarket Options
Aftermarket Wheel & Tire Configurations
Every card below is one wheel size, and every row is one documented build at its effective offset; spacer builds are listed at the offset a forged wheel would need and marked Via spacers. 997.1 and 997.2 wide-body cars share the same factory sizes and offsets, so builds from either phase apply to both. Every documented build is staggered.
| Setup | Tires (front · rear) | Stance | Fit | Drivetrain | Sources |
|---|---|---|---|---|---|
| Staggered — wider rear | |||||
| 19×8 / 19×11ET37–57 / ET31–44 | 235/35R19 · 305/30R19 | ●●●●● | Bolt-on · Not reported | AWD only | 2 |
| 19×8.5 / 19×12ET50–53 / ET44–51 | 245/35R19 · 325/30R19 | ●●●●● | Lowered · Not reported | AWD only | 3 |
| 19×8.5 / 19×11.5ET50–51 / ET45 | 235/35R19 · 305/30R19 | ●●●●● | Bolt-on · Not reported | AWD only | 2 |
| 18×8.5 / 18×10ET50 / ET27 | 235/40R18 · 265/40R18 | ●●●●● | Not reported | AWD only | 1 |
| 19×8.5 / 19×11ET45–50 / ET35–43 | Not reported | ●●●●● | Bolt-on · Not reported | AWD only | 3 |
| 18×8.5 / 18×11ET45 / ET31–40 | Varies by build | ●●●●● | Bolt-on · Mods may be needed | AWD only | 2 |
| 19×9 / 19×12ET42–50 / ET42–46 | Varies by build | ●●●●● | Bolt-on · Not reported | AWD only | 4 |
| 18×9 / 18×12ET46 / ET46 | 245/40R18 · 305/35R18 | ●●●●● | Bolt-on | AWD only | 3 |
| 18×9 / 18×11ET46 / ET36 | 245/40R18 · 295/35R18 | ●●●●● | Bolt-on | AWD only | 1 |
| 20×9 / 20×12ET50 / ET47 | 245/30R20 · 325/25R20 | ●●●●● | Bolt-on | AWD only | 1 |
Tap a setup to jump to its full card. Fit: Bolt-on = documented at stock ride height with no fender work reported · Lowered = documented on lowering springs or coilovers · Not reported = owners didn't say. Sources = owner builds (including customer cars in vendor galleries) and vendor fitment-guide setups documented on that card.
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Platform-specific fitment notes — Porsche 911 Carrera 4 / 4S & Targa 4 / 4S 997
Wide-body offsets.
These cars run a 44mm wider rear body than the Carrera and Carrera S, and Porsche's wide-body rear is 11J ET51, where the narrow-body rear is ET67. Narrow-body 997 wheels sit about 16mm further in at the rear and are often run on spacers. Order wide-body offsets, and check the stamp on any used 997 wheel.
Brakes and wheel size.
The 997.1 Carrera 4 and Targa 4 use 318mm front rotors; the 997.1 4S models and every 997.2 use 330mm, with ceramic brakes (PCCB) optional. Factory 18s clear every steel brake, but the 997.1 Carrera S front wheel isn't approved with PCCB. Some aftermarket designs need a 5mm front spacer for S-brake clearance, so caliper clearance is checked on every set.
Ball-seat lug bolts.
The factory bolts have a ball seat. FMB machines 997 Carrera 4 and Targa 4 wheels for 60° conical-seat bolts by default, so a new set runs conical bolts of the correct length. If you want to keep your factory ball-seat bolts, tell us when you order; otherwise the wheels are machined for conical. Most Porsche owners ask for ball seat.
Staggered Setup
Stance range
flush → poke
OEM
Aggressive
Front Wheels
19×8
Documented ET37 – ET57
Rear Wheels
19×11
Documented ET31 – ET44
Documented offsets
Lip position vs. stock · F 8J ET57 · R 11J ET51
ET57 / ET44
Front0mm outRear7mm out
ET37 / ET31
Front20mm outRear20mm out
Sources
Documented
2 community
The factory 8J and 11J wheels pushed out on spacers, listed at the offset a forged wheel would need. A 7mm rear spacer is a mild fill; 20mm at each corner is the widest documented, flush at factory height with extra negative camber. If you like your factory wheels' size, start here and pick the row that matches the look you want.
Stance range
flush → poke
OEM
Aggressive
Front Wheels
19×8.5
Documented ET50 – ET53
Rear Wheels
19×12
Documented ET44 – ET51
Documented offsets
Lip position vs. stock · F 8J ET57 · R 11J ET51
ET53 / ET51
Front10mm outRear13mm out
ET50 / ET44
Front13mm outRear20mm out
Sources
Well-documented
2 community
1 vendor
A half-inch-wider front with a 12-inch rear, the documented way to fit a 325 rear tire on the factory 19-inch diameter. The ET53 / ET51 row is two owners' cars, about 10mm out front and 13mm at the rear; the vendor-listed ET50 / ET44 brings the rear out further. Check front-to-rear rolling diameter for the 325 against your owner's manual.
Stance range
flush → poke
OEM
Aggressive
Front Wheels
19×8.5
Documented ET50 – ET51
Rear Wheels
19×11.5
Documented ET45 – ET45
Documented offsets
Lip position vs. stock · F 8J ET57 · R 11J ET51
ET51 / ET45
Front12mm outRear12mm out
ET50 / ET45
Front13mm outRear12mm out
Sources
Documented
2 community
A modest step from stock: half an inch wider at each axle, about 12–13mm out front and 12mm at the rear, on factory-size tires. Both rows are Carrera 4S owner builds with no spacers, one confirmed at factory ride height. If you want a flush look without moving to a 12-inch rear or a wider rear tire, this is the documented size.
Stance
flush → poke
OEM
Aggressive
Front Wheels
18×8.5 ET50
Rear Wheels
18×10 ET27
Documented build
Lip position vs. stock · F 8J ET57 · R 11J ET51
ET50 / ET27
Front13mm outRear11mm out
Sources
Documented
1 community
A narrower winter rear: a 10-inch rear at a low ET27 so the lip still sits about 11mm outside the factory 11-inch wheel, on a 265 winter tire instead of the factory 295. It's one Carrera 4 owner's snow set. If you build a winter set this way, check the rolling diameter against your owner's manual.
Stance range
flush → poke
OEM
Aggressive
Front Wheels
19×8.5
Documented ET45 – ET50
Rear Wheels
19×11
Documented ET35 – ET43
Documented offsets
Lip position vs. stock · F 8J ET57 · R 11J ET51
ET50 / ET35
Front13mm outRear16mm out
ET45 / ET43
Front18mm outRear8mm out
ET45 / ET35
Front18mm outRear16mm out
Sources
Well-documented
2 community
1 vendor
The factory 11-inch rear width with a lower offset and a half-inch-wider front. Most rows sit 13–18mm out front and 8–16mm at the rear on factory-size tires. The ET50 / ET35 row is a 997.2 Carrera 4S on factory Sport PASM with no spacers. The ET45 / ET43 row is narrow-body wheels on spacers, listed at their effective offset.
Stance range
flush → poke
OEM
Aggressive
Front Wheels
18×8.5
Documented ET45 – ET45
Rear Wheels
18×11
Documented ET31 – ET40
Documented offsets
Lip position vs. stock · F 8J ET57 · R 11J ET51
ET45 / ET40
Front18mm outRear11mm out
ET45 / ET31
Front18mm outRear20mm out
Sources
Documented
1 community
1 vendor
An 18-inch set at the factory 11-inch rear width with a half-inch-wider front, both rows about 18mm out front. The vendor setup keeps factory Carrera 4 tire sizes; the gallery car moves the rear further out on R-compound tires and needed light modifications. Both rows reach their offsets with spacers, listed here at the offset a forged wheel would need.
Stance range
flush → poke
OEM
Aggressive
Front Wheels
19×9
Documented ET42 – ET50
Rear Wheels
19×12
Documented ET42 – ET46
Documented offsets
Lip position vs. stock · F 8J ET57 · R 11J ET51
ET50 / ET46
Front20mm outRear18mm out
ET45 / ET46
Front25mm outRear18mm out
ET42 / ET42
Front28mm outRear22mm out
Sources
Well-documented
3 community
1 vendor
A 9-inch front with a 12-inch rear, the most documented wide-body 19-inch setup and the widest documented here, 20–28mm out front. The ET50 / ET46 row is listed with no changes on factory-size tires; ET42 is the most aggressive owner build. Some wheel designs need a 5mm front spacer for S-brake caliper clearance at ET50; FMB checks that clearance on every set.
Stance
flush → poke
OEM
Aggressive
Front Wheels
18×9 ET46
Rear Wheels
18×12 ET46
Documented build
Lip position vs. stock · F 8J ET57 · R 11J ET51
ET46 / ET46
Front24mm outRear18mm out
Sources
Well-documented
2 community
1 vendor
The 18-inch track size: a 9-inch front and 12-inch rear at ET46 all round, about 24mm out front and 18mm at the rear. Both gallery cars run R-compound tires with no changes listed, with a little extra front negative camber suggested. A wider 255 front on this wheel is listed with front camber plates. The vendor says its 18s clear the factory ceramic brakes.
Stance
flush → poke
OEM
Aggressive
Front Wheels
18×9 ET46
Rear Wheels
18×11 ET36
Documented build
Lip position vs. stock · F 8J ET57 · R 11J ET51
ET46 / ET36
Front24mm outRear15mm out
Sources
Documented
1 vendor
The same 9-inch front as the 18×9 / 18×12 card, with the factory 11-inch rear width at a lower ET36, about 15mm out. It's a vendor fitment-guide setup for dual street and track use on factory-width rear tires. No owner build at these offsets has been documented yet.
Stance
flush → poke
OEM
Aggressive
Front Wheels
20×9 ET50
Rear Wheels
20×12 ET47
Documented build
Lip position vs. stock · F 19″ 8J ET57 · R 19″ 11J ET51
ET50 / ET47
Front20mm outRear17mm out
Sources
Documented
1 vendor
Porsche never offered a 20-inch wheel for these cars, so the figures here are measured against the factory 19s. The vendor setup is a 9-inch front and 12-inch rear on low-profile 245/30R20 and 325/25R20 tires, about 20mm out front and 17mm at the rear. Owners report 20-inch sets without publishing offsets.
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Our Process
What happens when you build with FMB
Built to the exact spec, not the closest one on a shelf. The setups above come from real 997 Carrera 4 builds, and we CNC-machine every wheel to them directly. If a build needs a spacer to reach its offset, we machine that offset into the wheel instead.
- Choose your setup.
This guide is built to give you what you need to pick a spec with confidence: documented 997 Carrera 4 builds, tire sizes, and how each one fits. If you still have questions, we're happy to help before you order.
- Engineering verification.
Our manufacturing partner confirms wheel specs, including bolt pattern, center bore, brake caliper clearance, backspacing and load rating.
- Render approval.
You approve the design and final specs before we move forward with production.
Our fitment guarantee
Every set is guaranteed to mount on your 997 Carrera 4 or Targa 4: 5×130 bolt pattern, bored to the 71.6mm hub, machined for 60° conical lug bolts (or your factory ball-seat bolts if you request it when ordering), and made to the exact width and offset you approved.
How a setup sits on your car also depends on ride height, tires and alignment, so choose with your plans in mind.
Start your 997 Carrera 4 build →Common Questions
FAQ — Frequently Asked Questions
What are the factory wheel specs on the 997 Carrera 4, 4S and Targa 4?
All four wide-body trims use 8J ET57 front and 11J ET51 rear. The Carrera 4 and Targa 4 came on 18s with 235/40ZR18 and 295/35ZR18 tires; the 4S models on 19s with 235/35ZR19 and 305/30ZR19. Porsche also approves an 8.5J ET55 / 11.5J ET50 19-inch option. The 997.1 and 997.2 share these figures.
What are the hub and lug bolt specs?
A 5×130 bolt pattern, 71.6mm center bore, M14×1.5 ball-seat lug bolts. Porsche lists 96 lb-ft (130 Nm) for silver bolts through 2011 and 118 lb-ft (160 Nm) for black or 2012 silver. FMB machines 997 Carrera 4 and Targa 4 wheels for 60° conical-seat bolts by default, so a new set runs conical bolts of the correct length. If you want to keep your factory ball-seat bolts, tell us when you order; otherwise the wheels are machined for conical.
What aftermarket wheel sizes are documented on the 997 Carrera 4 and 4S at stock ride height?
At factory height, 19×8.5 ET50 / 19×11.5 ET45 is a no-spacer owner build on a 997.2 Carrera 4S, and 19×8.5 ET50 / 19×11 ET35 runs on factory Sport PASM. In 18s, 18×9 / 18×12 ET46 is listed with no changes. Factory 19s on 20mm spacers have been run flush unlowered with maximum negative camber.
How do I read the offset ladder on each card, and what's the difference between flush and aggressive?
Each card is one wheel size and each row one documented build at its effective offset. The Front and Rear figures show how far the outer lip sits outside the factory 8J ET57 / 11J ET51 wheel. Around 10–15mm reads as a flush fill; 20mm or more, like the 19×9 / 19×12 rows, is the aggressive end. Via spacers marks spacer builds.
What wheel sizes clear the 997 Carrera 4 brakes?
Porsche's factory 18s clear every steel brake on these cars, including the 330mm brakes on the 4S models and all 997.2s. With ceramic brakes, the 997.1 Carrera S front wheel isn't approved, so check any 18-inch or tight-spoke design. Some aftermarket wheels needed a 5mm front spacer for S-brake caliper clearance; FMB checks clearance on every set.
Why is there no square setup, and what about AWD rolling diameter?
Every factory and documented setup is staggered, with a wider rear for the wide body, and we couldn't find a square setup with published offsets. Staggered configurations can produce front-to-rear rolling diameter mismatches that may stress the all-wheel-drive system over time. Check the math against your owner's manual before committing; we document tire sizes on every card.
Can I use wheel spacers on the 997 Carrera 4?
Porsche approves a 5mm spacer per wheel with longer bolts, and a 17mm spacer only to fit narrow-body ET67 rears. Owners run more, and every spacer build on this page is listed at its effective offset: wheel ET minus spacer. FMB machines that offset into the wheel, so you get the same position without spacers or longer bolts.
Will narrow-body 997 Carrera or Carrera S wheels fit a Carrera 4S?
They mount, since the hub, bore and bolts are the same, but narrow-body rears are 11J ET67, about 16mm further in than the wide-body ET51, and look tucked. Owners often add 15–20mm rear spacers. Wide-body wheels go the other way: on a narrow-body Carrera they sit about 16mm further out at the rear.
What are the factory winter wheel options?
Porsche's winter certificates list the 18-inch 8J ET57 / 11J ET51 set on 235/40R18 and 295/35R18 tires, and the 19-inch designs on 235/35R19 and 295/30R19, for all four trims. Snow chains are approved only with spacers removed, at up to 30 mph. One documented owner winter set runs an 18×10 ET27 rear on a 265.
Which model years and cars does this guide cover?
The 997 Carrera 4 and Carrera 4S coupe and cabriolet (2006–2012) and the Targa 4 and 4S (2007–2012), across both 997.1 and 997.2. In the VIN, the 10th character runs 6 to 9 for 2006–2009 and A to C for 2010–2012. The Carrera / Carrera S, Turbo, GTS and GT models aren't covered.
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