Mercedes-Benz G55 AMG Kompressor (2004) Bolt Pattern & Wheel Fitment
Mercedes-Benz G55 AMG Kompressor (2004): 5x130 bolt pattern, 84.1mm center bore. Factory wheels: 18x8.0J F/R. Reference fitment ranges.
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Wheel Size & Offset at a Glance
| Configuration | Wheel Size & Offset |
|---|---|
| Factory (OE) | 18x8.0J F/R |
| Flush Fitment | 20x9.0J at ET30 offset |
| Maximum Aggressive | 22x9.5J at ET25 offset |
How to Read Wheel Offset & Measurements
Use these two references before ordering: the left diagram shows where each spec (PCD, center bore, offset, width and diameter) is measured on the wheel; the right diagram shows how positive, zero and negative offset shift the wheel face relative to the hub centerline.
ANKUSI Engineering Expert Advice
Because an SUV's center of gravity is already higher than a sedan's, anything added at the corners — including wheel weight — has an outsized effect on handling balance. A forged wheel lets us hit the visual stance owners want without adding the rotational mass a cast wheel of the same strength would carry.
The Mercedes-Benz G55 AMG Kompressor runs a 5x130 bolt pattern, 84.1mm center bore, and a 18x8.0J, front and rear, wheel from the factory. Our Flush Fitment reference is 20x9.0J ET30, which tucks the tire under the fender lip on a stock-height Mercedes-Benz G55 AMG Kompressor. Our Maximum Aggressive reference is 22x9.5J ET25 — beyond that offset, expect rubbing against the inner fender liner under compression without further trimming.
Mercedes-Benz G55 AMG Kompressor OE Wheel Specs
The 2004 Mercedes-Benz G55 AMG Kompressor (Performance SUV) uses a 5x130 bolt pattern with a 84.1mm center bore. Factory wheels are 18x8.0J F/R.
Why the factory spec works for most owners:
- Supports the vehicle's curb weight and load capacity
- Preserves ground clearance for everyday and light off-road use
- Balances ride comfort with cargo and passenger stability
- Maintains clearance for the factory suspension travel and brake package
ANKUSI builds these wheels — we are the forging factory, not a reseller. For the Mercedes-Benz G55 AMG Kompressor (2004) we drill the 5x130 pattern and cut the centre bore to 84.1mm on our own CNC line, so the wheel hub-centres on the car with no spacer rings, in whatever diameter, width and offset you specify.
Converting these ET figures to backspacing? Use the wheel offset and backspacing calculator.
The figures on this page are part of our open wheel fitment dataset — 6,436 vehicles, free to download, CC BY 4.0.
Flush Fitment
For a flush look with minimal rubbing, F/R 20x9.0J ET30 is the recommended starting point on a stock or mildly lowered Mercedes-Benz G55 AMG Kompressor.
Maximum Aggressive Fitment
F/R 22x9.5J ET25 is a more aggressive reference setup. Beyond this, expect rubbing under compression without fender rolling or camber correction.
5-Tier Configuration Options
A Factory-Style 18x8.0J ET35
Recommended setup: 18x8.0J ET35 | Economy impact: Negligible | Best for: Daily commuting, family use
Appearance: 7/10 | Comfort: 9.5/10 | Install difficulty: ★☆☆☆☆
Estimated cost: $450-800 (wheels + tires + install)
B Comfortable Upgrade 19x8.5J ET33
Recommended setup: 19x8.5J ET33 | Economy impact: -2 to -4% | Best for: Daily / street
Appearance: 8/10 | Comfort: 9/10 | Install difficulty: ★☆☆☆☆
Estimated cost: $1,950-2,550 (wheels + tires + install)
C Balanced / Flush Fit 20x9.0J ET30
Recommended setup: 20x9.0J ET30 | Economy impact: -4 to -6% | Best for: Street
Appearance: 8.5/10 | Comfort: 8/10 | Install difficulty: ★★☆☆☆
Estimated cost: $2,600-3,400 (wheels + tires + install)
D Aggressive 21x9.5J ET28
Recommended setup: 21x9.5J ET28 | Economy impact: -6 to -9% | Best for: Show / occasional track
Appearance: 9/10 | Comfort: 6.5/10 | Install difficulty: ★★★☆☆
Estimated cost: $3,900-5,000 (wheels + tires + install)
E Max Aggressive 22x9.5J ET25
Recommended setup: 22x9.5J ET25 | Economy impact: -8 to -12% | Best for: Show only
Appearance: 9.5/10 | Comfort: 4/10 | Install difficulty: ★★★★☆
Estimated cost: $4,800-6,200+ (wheels + tires + install)
Performance Comparison Matrix
| Metric | Tier A | Tier B | Tier C | Tier D | Tier E |
|---|---|---|---|---|---|
| Wheel Spec | 18x8.0J ET35 | 19x8.5J ET33 | 20x9.0J ET30 | 21x9.5J ET28 | 22x9.5J ET25 |
| Economy Impact | Negligible | -2 to -4% | -4 to -6% | -6 to -9% | -8 to -12% |
| Appearance | 7/10 | 8/10 | 8.5/10 | 9/10 | 9.5/10 |
| Comfort | 9.5/10 | 9/10 | 8/10 | 6.5/10 | 4/10 |
| Install Difficulty | ★☆☆☆☆ | ★☆☆☆☆ | ★★☆☆☆ | ★★★☆☆ | ★★★★☆ |
| Cost Range | $450-800 | $1,950-2,550 | $2,600-3,400 | $3,900-5,000 | $4,800-6,200+ |
| Best For | Daily commuting, family use | Daily / street | Street | Show / occasional track | Show only |
Real-World Reference Cases
The examples below are compiled from typical ANKUSI customer configurations and are labeled as reference cases, not individually verified real-world builds.
Case 1: Daily Driver (Factory-Style)
Profile: Everyday driving, prioritizes comfort and low running cost.
Setup: 18x8.0J ET35
Cost: ~$620
Outcome: Minimal visual change, ride and fuel economy essentially unaffected.
Case 2: Balanced Enthusiast (Balanced / Flush Fit)
Profile: Wants a sportier stance without sacrificing daily usability.
Setup: 20x9.0J ET30
Cost: ~$3,000
Outcome: Noticeable visual upgrade, fuel economy drop within the expected range.
Case 3: Show Build (Max Aggressive)
Profile: Built primarily for shows or occasional track/show use.
Setup: 22x9.5J ET25
Cost: ~$5,500
Outcome: Maximum visual impact; daily comfort and fuel economy are heavily compromised, physical test fit required before production.
Decision Guide
Offset & Backspacing Reference
Backspacing is calculated as wheel width (in) ÷ 2 + offset (mm) ÷ 25.4 + 0.5 (flange allowance):
- OE: 18x8.0J ET35 → ~5.88″ backspacing
- Flush: 20x9.0J ET30 → ~6.18″ backspacing
- Max: 22x9.5J ET25 → ~6.23″ backspacing
Want to check a different width or offset before you order? Use our Offset & Backspacing Calculator to solve the numbers yourself, or looking for your exact Mercedes-Benz spec, or want a wheel built to a custom offset for your Mercedes-Benz G55 AMG Kompressor? Contact ANKUSI with your bolt pattern and offset target and we will confirm the correct forged wheel spec for your build.
Custom Forged Wheels for the Mercedes-Benz G55 AMG Kompressor (2004)
Everything above is reference data. If you want wheels actually built to it, that is what ANKUSI does: we are a forged wheel factory in Guangzhou, China, IATF 16949 and ISO 9001 certified, forging on our own 10,000-ton press and producing over 120,000 wheels a year. Forging blank, CNC machining, finishing, coating and inspection all happen in the same building — nothing is subcontracted and nothing is relabelled from another manufacturer.
Every set is cut to order, so the 5x130 pattern and the 84.1mm centre bore are machined for this car specifically rather than shimmed with adaptor rings. Diameter, width, offset, concavity, monoblock or multi-piece construction and the finish are all yours to choose — most Mercedes-Benz orders on this platform land somewhere between the 20x9.0J ET30 flush setup and the 22x9.5J ET25 aggressive setup referenced above.
Designs we already tool for the 5x130 pattern — each one is re-cut to your sizes and offsets:
MANSORY Brushed Silver with Black Bolt Holes Mesh Multi-Spoke Forged Wheels – Mansory Porsche Panamera Fitment (20-22in, 5×130)
Porsche AURA252 Space Gray 5-Spoke Y-Design Forged Wheels – Porsche 911 Turbo S Fitment (19-21in, 5×130)
Porsche AURA252 Metallic Gray 5-Spoke Y-Design Forged Wheels – Porsche 911 Turbo S Fitment (19-21in, 5×130)
Porsche Machined Face 10-Spoke Y-Design Forged Wheels – Porsche 911 Turbo S Fitment (19-20in, 5×130)Frequently Asked Questions
What bolt pattern (PCD) does the Mercedes-Benz G55 AMG Kompressor use?
How many lug bolts does the Mercedes-Benz G55 AMG Kompressor use?
What is the center bore size on the Mercedes-Benz G55 AMG Kompressor?
What size are the factory (stock) wheels on the Mercedes-Benz G55 AMG Kompressor?
What is the biggest wheel size I can fit on my Mercedes-Benz G55 AMG Kompressor without rubbing?
What does a flush wheel fitment look like on the Mercedes-Benz G55 AMG Kompressor?
Do I need wheel spacers for my Mercedes-Benz G55 AMG Kompressor?
How do I calculate wheel backspacing for my Mercedes-Benz G55 AMG Kompressor?
What's the difference between wheel offset and backspacing?
Can I run staggered wheels (different sizes front and rear) on my Mercedes-Benz G55 AMG Kompressor?
Wheel Installation Reference: Torque, Thread & TPMS
Thread & Fastener: M14x1.5, ball-seat lug bolt.
Factory Torque Spec: 150 Nm (110 ft-lb). SUV/crossover platforms (GLC/ML/GLE/GL/GLS and similar) generally use the longer 45mm bolt at this spec.
TPMS: Vehicles built before the 2008 model year were not federally required to carry factory TPMS in the US, though many manufacturers adopted it earlier; verify whether your specific build has TPMS before ordering sensor-compatible wheels.
Tire Pressure: Always set tire pressure to the value on your vehicle's tire placard (driver's doorjamb or glovebox), not the max PSI printed on the tire sidewall — this is trim- and tire-size-specific and stays the same reference point when you switch to a different wheel and tire combination.
Reference data compiled from published OEM service specifications and cross-checked against independent repair sources; always confirm against your owner's manual or door-jamb placard before installation.