The 2009 Maserati Quattroporte blends Italian luxury-sedan presence with performance-car proportions, making tire fitment a much bigger decision than it would be on an ordinary four-door. By this point in the Quattroporte’s run, wheel and tire packages could vary meaningfully by trim and axle, with staggered radial setups across 18-, 19-, and 20-inch rims. That means the right choice starts with confirming the exact front and rear size for your particular Quattroporte configuration. Available options span blackwall sport radials as well as select redline and raised white letter choices in some rear sizes, so the decision often comes down to preserving the car’s intended stance, handling balance, and visual character.
Which Tire Size Is Right for The 2009 Maserati Quattroporte
The 2009 Maserati Quattroporte uses seven primary tire sizes, and the correct choice depends on the exact sub-model, axle position, and wheel diameter. Front and rear sizes are staggered rather than interchangeable, and this car appears with 18-, 19-, and 20-inch radial fitments. Before choosing a tire, confirm whether the car is a Base, S, Sport GT S, or Run-Flat Tire Option configuration, then verify the wheel diameter on the vehicle.
Fit(s): (Run-Flat Tire Option) Front, Base Front, and S Front
Construction: Radial|Rim: 19 in
245/40R19 is a metric radial size in which 245 is the section width in millimeters, 40 is the aspect ratio, R identifies radial construction, and 19 is the rim diameter in inches. On the 2009 Maserati Quattroporte, this is a front fitment used with a 19-inch wheel. Available choices are centered on BFGoodrich blackwall performance radials across the g-Force Sport Comp 2, g-Force Comp 2 AS, and g-Force Phenom T/A series. This size is a good place to focus when the car already carries 19-inch front wheels and the goal is to stay with the proper staggered setup.
Fit(s): (Run-Flat Tire Option) Front and Base Front
Construction: Radial|Rim: 18 in
245/45R18 follows the same metric radial format, with a 245-millimeter section width, a 45-series profile, and fitment for an 18-inch rim. On this Quattroporte, it serves as a front tire size for 18-inch wheel packages. Product choices include blackwall radials from BFGoodrich and Nitto, with differences in tire series, rim-width compatibility, weight, and published load specifications. This size matters when the car is equipped with the 18-inch front wheel setup, since moving to another diameter changes the fitment conversation completely.
Fit(s): (Run-Flat Tire Option) Rear, Base Rear, and S Rear
Construction: Radial|Rim: 19 in
285/35R19 is a wide metric radial rear size, with 285 millimeters of nominal section width, a 35-series profile, and a 19-inch rim diameter. For the 2009 Maserati Quattroporte, it is used on the rear axle with certain 19-inch staggered wheel combinations. Choices in this size include BFGoodrich blackwall performance tires as well as Pro-Trac Street Pro III options in redline and raised white letter form. It is the right size to evaluate when maintaining a 19-inch rear setup and when appearance matters as much as tread design and brand preference.
285/40R18 is a metric radial size that combines a 285-millimeter section width with a 40-series profile on an 18-inch wheel. On the 2009 Maserati Quattroporte, it functions as a rear tire size for cars using the 18-inch staggered setup. Available options include a blackwall Nitto NT555 G2 and Pro-Trac Street Pro III versions with redline or raised white letter sidewalls. This size should be chosen only when the rear wheel diameter is confirmed at 18 inches, since the Quattroporte also uses visually similar rear widths on larger-diameter wheel packages.
245/35R20 is a low-profile metric radial with a 245-millimeter section width, a 35-series aspect ratio, and a 20-inch rim diameter. On the 2009 Maserati Quattroporte, this is a front fitment for 20-inch wheel packages used on certain Base, S, and Sport GT S-related configurations. The available tires are blackwall radials from BFGoodrich and Nitto across several performance-oriented series. This size becomes the focal point when the car wears factory-style or replacement 20-inch front wheels and the goal is to preserve the intended front-to-rear stagger.
285/30R20 is a wide, low-profile metric radial size with a 285-millimeter section width, a 30-series profile, and fitment for a 20-inch wheel. On the 2009 Maserati Quattroporte, it is a rear size paired with 20-inch staggered setups on certain Base and S applications. Available choices include a blackwall Nitto NT555 G2 along with Pro-Trac Street Pro III tires in raised white letter and redline versions. This is the rear size to review when the car already has 20-inch wheels and the buyer wants to balance modern performance styling with sidewall appearance options.
295/30R20 is a metric radial rear size that uses a wider 295-millimeter section width, a 30-series profile, and a 20-inch rim diameter. On the 2009 Maserati Quattroporte, this size appears specifically on the Sport GT S rear application, making it more specialized than the 285-section rear options used elsewhere. The Quattroporte fitment details here point to this size as the defining rear tire for that configuration. It should be selected only after confirming the exact sub-model and rear wheel setup, since width and axle-specific fitment are central to how this car is configured.
Sub-model fitment on the 2009 Maserati Quattroporte is not one-size-fits-all, because both wheel diameter and front-to-rear sizing vary across the covered configurations. Identifying the exact trim and confirming whether you are selecting a front or rear tire is the key first step before comparing products.
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2009 Maserati Quattroporte (Run-Flat Tire Option) Front
The Run-Flat Tire Option front application uses either an 18-inch or 19-inch radial front size, so wheel diameter must be confirmed before any purchase decision. Once that is settled, the focus shifts to choosing among the available blackwall performance tire lines in the proper front fitment.
The Run-Flat Tire Option rear application uses a staggered rear radial size that changes with 18-inch or 19-inch wheel packages. Rear tire selection should stay matched to the corresponding front setup, with attention to the correct diameter and the rear-specific width used on the car.
The Base front application spans 18-, 19-, and 20-inch radial sizes, making wheel confirmation essential before comparing any tire options. After the diameter is verified, the choice becomes a matter of selecting the right performance-oriented front tire series in the correct low-profile or standard-profile fitment.
The Base rear application uses staggered radial rear sizes across 18-, 19-, and 20-inch wheel packages. Matching the rear tire to the actual wheel diameter and the front setup is especially important here, since the Quattroporte’s stance and fitment depend on the correct axle-specific pairing.
The Quattroporte S front fitment uses either a 19-inch or 20-inch radial size, depending on the wheel package on the car. Tire selection starts with confirming that diameter, then comparing the blackwall performance choices available in the appropriate front size.
The Quattroporte S rear fitment is staggered and uses either a 19-inch or 20-inch radial rear size. That means rear tire choice should be made only after the wheel diameter is confirmed and the proper front-and-rear pairing is preserved.
The Sport GT S front application is straightforward, using a single 20-inch radial front size. With the size question simplified, the main decision becomes which available blackwall performance tire series best suits the car’s use and preferred driving character.
The Sport GT S rear application stands apart by using a wider 295-section 20-inch radial rear tire. That makes sub-model confirmation especially important, because this rear fitment is not the same as the 285-section rear size used on other 20-inch Quattroporte configurations.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 2009 Maserati Quattroporte Tires for Sale
Available 2009 Maserati Quattroporte tire choices are all radial and center on BFGoodrich, Nitto, and Pro-Trac offerings. Depending on size, the comparison may include blackwall performance tires, Street Pro III options with redline or raised white letter sidewalls, and differences in tire series, rim-width specs, weight, and published load figures.
These FAQs focus on the tire questions that matter most on a 2009 Maserati Quattroporte, including staggered front and rear sizing, wheel-diameter confirmation, brand and sidewall choices, and the checks worth making before regular road use.
Tire Size & Fitment
What tire size fits a 2009 Maserati Quattroporte?
A 2009 Maserati Quattroporte can use 245/45R18, 245/40R19, or 245/35R20 on the front, paired with 285/40R18, 285/35R19, 285/30R20, or in Sport GT S rear form, 295/30R20 on the rear. All of these are radial sizes, and the car uses a staggered setup rather than the same size at all four corners.
The correct choice depends on the exact sub-model and the wheel diameter already on the car. Start by identifying whether the Quattroporte is Base, S, Sport GT S, or a Run-Flat Tire Option application, then confirm both front and rear rim diameters before selecting tires.
What size rim does a 2009 Maserati Quattroporte use?
The 2009 Maserati Quattroporte uses 18-inch, 19-inch, and 20-inch rim diameters, depending on configuration. Front and rear wheel sizes are tied to matching staggered tire sizes, so the rim diameter must be confirmed at each axle before choosing replacement tires.
That matters because several Quattroporte sizes look close in overall proportions but mount to different wheel diameters. Checking the tire sidewall and measuring the actual wheel setup is the safest starting point, especially if the car has been fitted with replacement wheels at some point in its life.
Why does the 2009 Maserati Quattroporte have more than one tire size?
The 2009 Maserati Quattroporte has more than one tire size because its fitment changes by sub-model, wheel package, and axle position. It uses staggered front and rear radial sizes, and those pairings appear across 18-, 19-, and 20-inch wheel diameters rather than one universal setup.
That means tire selection is really a wheel-and-configuration question first. A Base, S, Sport GT S, or Run-Flat Tire Option car can require different front and rear sizes, so matching what is actually on the vehicle is more important than assuming every Quattroporte of this year uses the same combination.
Choosing the Right Tire
What should I consider when choosing a 2009 Maserati Quattroporte tire?
Start with the exact front or rear size, the wheel diameter, and the specific Quattroporte configuration. From there, compare the available radial tire series by brand, sidewall treatment where offered, rim-width specification, weight, and any published load figures that appear in the product details.
A Quattroporte is sensitive to maintaining the intended staggered setup, so the right tire is not just a matter of matching a width number. The best comparison approach is to confirm the axle position first, then evaluate whether the tire’s sizing, construction, and product character suit the car’s current wheel package and intended use.
What sidewall styles are available for 2009 Maserati Quattroporte tires?
Most 2009 Maserati Quattroporte tire options are blackwall radials, especially in the front sizes. In some rear sizes, there are also Pro-Trac Street Pro III choices with redline and raised white letter sidewalls, giving the car a more customized visual treatment than a standard blackwall performance tire.
The key is to treat sidewall style as a size-specific choice rather than assuming every look is available in every fitment. A buyer trying to preserve a clean modern appearance may stay with blackwalls, while someone wanting a more distinctive visual statement should confirm that the preferred sidewall is offered in the exact rear size needed.
What brands offer tires for the 2009 Maserati Quattroporte?
Tires for the 2009 Maserati Quattroporte are available from BFGoodrich, Nitto, and Pro-Trac, depending on the size. The assortment includes BFGoodrich g-Force series options, Nitto NT555 G2 fitments, and Pro-Trac Street Pro III choices in selected rear sizes.
That variety gives the buyer different ways to approach the same vehicle, from straightforward blackwall performance radials to more visually distinctive rear-tire options. The most useful way to compare brands is within the exact size required, because the available series, sidewall treatments, and published specs change from one Quattroporte fitment to another.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2009 Maserati Quattroporte?
Yes. A 2009 Maserati Quattroporte can be affected by aftermarket wheels, suspension changes, alignment changes, or body modifications, especially because the car uses staggered low-profile radial tire sizes across several wheel diameters. Even small setup changes can alter clearance at the fender, suspension, or steering components.
That is why the actual wheel diameter and axle-specific width should be verified on the car before ordering replacements. A modified Quattroporte may no longer match its original wheel package, so checking offset, wheel width, and clearance at full steering lock and suspension travel is a smart step before committing to a tire size.
What should I inspect before driving a 2009 Maserati Quattroporte on new tires?
Before driving a 2009 Maserati Quattroporte on new tires, inspect wheel condition, valve stems, inflation pressure, and basic suspension and alignment condition. It is also worth checking that the front and rear sizes are mounted in the correct positions, since this car uses staggered radial fitments that should not be mixed casually.
A road test should begin with close attention to vibration, pulling, rubbing, or unusual steering feel. On a performance luxury sedan like the Quattroporte, worn suspension parts or incorrect pressure can make a fresh set of tires feel wrong, so addressing the supporting hardware matters almost as much as choosing the proper size.
How should tires on a 2009 Maserati Quattroporte be inspected and maintained?
Tires on a 2009 Maserati Quattroporte should be inspected regularly for uneven wear, cuts, punctures, sidewall damage, and any sign of air loss. Because the car uses low-profile staggered radials, maintaining the correct inflation pressure and keeping an eye on wear patterns across both axles is especially important.
A Quattroporte that is driven infrequently still deserves periodic checks, since age and storage conditions can affect tire condition even when tread looks good. Keeping the car away from prolonged sun exposure, excess heat, and ozone sources helps, and any tire showing cracking, bulging, or persistent pressure loss should be evaluated before road use.
