ORIGINAL MASERATI GHIBLI QUATTROPORTE M156 19-INCH SUMMER WHEELS PROTEO 670016851
Upgrade your Maserati with an Original Maserati Proteo 19-inch summer wheel set, designed for compatible Maserati Ghibli and Quattroporte applications. This factory-style staggered wheel package combines genuine Maserati wheel specifications with performance-oriented Pirelli P Zero MGT summer tires.
The advertised wheel set uses Maserati part numbers 670016851 for the front wheels and 670016855 for the rear wheels. The wheels are listed for Quattroporte M156 and Ghibli M157 applications.
Product Specifications
- Brand: Maserati
- Wheel Design: Proteo
- Application: Maserati Ghibli / Quattroporte
- Front Wheel Part Number: 670016851
- Rear Wheel Part Number: 670016855
- Wheel Diameter: 19 inches
- Front Size: 8.5J x 19 ET44
- Rear Size: 10J x 19 ET40
- Bolt Pattern: 5×114.3
- Wheel Type: Staggered
- TPMS/RDC Sensors: Yes
- Tire Brand: Pirelli
- Tire Model: P Zero MGT
- Front Tire: 245/45 ZR19 98Y
- Rear Tire: 275/40 ZR19 101Y
- Season: Summer
- Run-Flat: No
- Condition: Used, depending on the actual set
- OEM Status: Original Maserati
Proteo 19-Inch Wheel Design
The Proteo is a distinctive Maserati wheel design developed for the Ghibli and Quattroporte range. Genuine wheel listings identify 670016851 as the 19-inch front Proteo wheel measuring 8.5J x 19 ET44.
The staggered setup gives the rear axle a wider wheel and tire combination, contributing to the vehicle’s sporty stance and rear-axle traction.
Staggered Wheel Configuration
The complete setup consists of:
Front:
- 2 × 19-inch Proteo wheels
- Part number 670016851
- 8.5J x 19 ET44
- 245/45 ZR19 tires
Rear:
- 2 × 19-inch Proteo wheels
- Part number 670016855
- 10J x 19 ET40
- 275/40 ZR19 tires
The 5×114.3 bolt pattern is shared across the front and rear wheels.
Pirelli P Zero MGT Summer Tires
The advertised package is fitted with Pirelli P Zero tires carrying the MGT Maserati specification.
The listed sizes are:
- Front: 245/45 ZR19 98Y
- Rear: 275/40 ZR19 101Y
The tires are non-run-flat. One documented set has approximately 7 mm of tread on the front tires and 5 mm on the rear tires, although actual tread depth should be verified for the specific set being sold.
Genuine Maserati OEM Wheels
The Proteo wheel is identified as an original Maserati wheel. A separate parts listing identifies 670016851 as the original Proteo front aluminum rim for the Maserati Ghibli M157.
Another listing identifies the Proteo wheels as factory wheels produced by Speedline in Italy for Maserati.
Fitment
The advertised applications include:
- Maserati Ghibli M157
- Maserati Quattroporte M156
The 19-inch wheel is listed for multiple Ghibli engine configurations, including 3.0 V6, 3.0 S, 3.0 S Q4, V8 and certain MHEV applications.
However, wheel compatibility should always be confirmed against the vehicle’s VIN, original wheel specification and approved tire sizes.
Important Fitment Information
Although 670016851 is the front wheel reference, the complete staggered set requires the matching rear wheel 670016855.
Before ordering, verify:
- Vehicle model
- Model year
- Ghibli or Quattroporte platform
- Front wheel part number
- Rear wheel part number
- Tire size
- Brake clearance
- TPMS compatibility
- Vehicle’s approved wheel/tire combination
The same wheel may physically fit more than one Maserati model, but vehicle-specific approval should still be confirmed.
Wheel Condition
For a used set, inspect all four wheels for:
- Curb rash
- Cracks
- Bends
- Corrosion
- Weld repairs
- Refurbishment
- Paint damage
- Diamond-cut damage
- Missing center caps
- Damaged valve stems
- TPMS sensor condition
Request photographs of all four wheels from multiple angles before purchase.
Tire Inspection
Used tires should be checked for:
- Remaining tread depth
- Uneven wear
- Sidewall damage
- Cracking
- Punctures
- Repairs
- Tire age
- DOT production date
- Correct Maserati MGT specification
Do not rely solely on the tread-depth figure when evaluating used tires.
TPMS / RDC Sensors
The documented wheel set includes RDK/RDC tire-pressure sensors.
Before installation, verify:
- Sensor condition
- Sensor battery status
- Valve condition
- Compatibility with the vehicle
- Whether the vehicle requires TPMS relearning
A vehicle diagnostic system may be required to register replacement sensors.
Installation
Professional wheel installation is recommended.
A typical installation includes:
- Verify front and rear wheel part numbers.
- Inspect wheels for damage.
- Inspect tires and DOT dates.
- Check TPMS sensors.
- Mount the wheels.
- Torque wheel bolts to the vehicle manufacturer’s specification.
- Check tire pressure.
- Balance all four wheels.
- Install compatible center caps.
- Perform TPMS relearning if required.
- Check clearance around brakes and suspension.
- Perform a road test.
Why Choose the Proteo 19-Inch Set?
This wheel package offers:
- Genuine Maserati styling
- Original Proteo design
- 19-inch diameter
- Staggered front/rear configuration
- Pirelli P Zero MGT tires
- OEM Maserati fitment
- 5×114.3 bolt pattern
- TPMS-equipped wheels
- Sporty factory appearance
Buyer Checklist
Before purchasing, confirm:
- Vehicle: Maserati Ghibli / Quattroporte
- Platform: Ghibli M157 / Quattroporte M156
- Wheel Design: Proteo
- Front P/N: 670016851
- Rear P/N: 670016855
- Front: 8.5J x 19 ET44
- Rear: 10J x 19 ET40
- Bolt Pattern: 5×114.3
- Front Tires: 245/45 ZR19
- Rear Tires: 275/40 ZR19
- Tire: Pirelli P Zero MGT
- TPMS: Included/installed — confirm
- Center Caps: Confirm
- Condition: Confirm
- Tread Depth: Confirm
- DOT: Confirm
- VIN Compatibility: Recommended
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