The 2004 Maserati Quattroporte marked a major shift for Maserati’s flagship sedan, blending Italian luxury and performance with a more modern grand-touring character. It is a car that depends heavily on the right staggered tire setup to preserve both its stance and the balance engineered into the chassis. The 2004 Maserati Quattroporte uses 245/45R18 tires in front and 285/40R18 tires in the rear, both in radial construction on 18-inch rims. Available choices include blackwall, redline, and raised white letter treatments across BFGoodrich, Nitto, and Pro-Trac lines. The key decision is matching the correct front and rear sizes while choosing the appearance and tire character that best suits the car’s intended use.
Which Tire Size Is Right for The 2004 Maserati Quattroporte
The 2004 Maserati Quattroporte uses two primary tire sizes, and the difference is tied directly to its front and rear fitment. Both sizes are radial tires for 18-inch rims, so the first step is confirming position on the car rather than choosing between different wheel diameters. Once that is settled, the decision becomes selecting the right tire series, brand, and sidewall style for the way the car is driven and presented.
245/45R18 is a metric radial size where 245 identifies the nominal section width in millimeters, 45 is the aspect ratio, R denotes radial construction, and 18 is the wheel diameter in inches. On the 2004 Maserati Quattroporte, this size is used at the front, making it part of the car’s staggered setup rather than a universal four-corner fitment. Available choices in this size come from BFGoodrich and Nitto, all in blackwall form, with series such as g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2. It is the size to evaluate when replacing front tires and maintaining the intended front-to-rear relationship.
285/40R18 is a metric radial size with a 285-millimeter nominal section width, a 40-series profile, radial construction, and an 18-inch rim requirement. On the 2004 Maserati Quattroporte, this is the rear tire size, so it works with the wider rear fitment that defines the car’s staggered arrangement. Product choices in this size include Nitto and Pro-Trac offerings, with blackwall, redline, and raised white letter sidewall treatments available across the NT555 G2 and Street Pro III lines. This is the size to review when rear-tire replacement, stance, and sidewall appearance are the priority.
Sub-model fitment on the 2004 Maserati Quattroporte is straightforward in one sense and important in another: the distinction is front versus rear. Checking position matters because the car uses a staggered setup, with one size for the front axle and a different size for the rear.
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2004 Maserati Quattroporte Base Front
The 2004 Maserati Quattroporte Base Front uses a 245/45R18 radial tire. That makes front-tire selection less about choosing among multiple fitments and more about matching the correct front size while comparing available series and blackwall product options.
The 2004 Maserati Quattroporte Base Rear uses a 285/40R18 radial tire. Rear-tire selection should center on preserving the staggered layout while deciding whether a blackwall, redline, or raised white letter presentation best suits the car’s intended look.
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 2004 Maserati Quattroporte Tires for Sale
Available 2004 Maserati Quattroporte tire choices center on 245/45R18 front and 285/40R18 rear radial fitments from BFGoodrich, Nitto, and Pro-Trac. The product grid lets you compare series such as g-Force and Street Pro III, along with blackwall, redline, and raised white letter sidewall treatments.
These FAQs focus on the staggered front-and-rear tire setup used on the 2004 Maserati Quattroporte, along with rim fitment, sidewall choices, product selection, and the checks worth making before road use.
Tire Size & Fitment
What tire size fits a 2004 Maserati Quattroporte?
The 2004 Maserati Quattroporte uses a staggered tire setup rather than one size at all four corners. The front uses 245/45R18, while the rear uses 285/40R18, and both are radial tires for 18-inch rims.
That means tire selection starts with confirming whether you are replacing front tires, rear tires, or a full set. Using the correct position-specific size helps preserve the car’s intended balance, appearance, and wheel fitment, so the front and rear should not be treated as interchangeable without carefully checking the complete wheel and clearance setup.
What size rim does a 2004 Maserati Quattroporte use?
Both primary tire sizes used on the 2004 Maserati Quattroporte are built for 18-inch rims. The front 245/45R18 and rear 285/40R18 share the same wheel diameter, even though they differ substantially in width and profile.
Wheel diameter is only part of the fitment picture, so an 18-inch rim alone does not make every tire or wheel combination appropriate. It still helps to confirm actual wheel width, especially on a car with staggered front and rear sizes, because the available tires are intended for different rim-width ranges depending on position.
Why does the 2004 Maserati Quattroporte have more than one tire size?
The 2004 Maserati Quattroporte has more than one tire size because it uses a staggered arrangement. A 245/45R18 tire is used on the front, while a wider 285/40R18 tire is used on the rear, both in radial construction.
For the buyer, that makes position the first fitment checkpoint. A staggered layout affects how the car sits and how the wheel-and-tire package is matched, so replacement should start by identifying front versus rear and then comparing tire series, sidewall treatment, and wheel compatibility within the correct size for each end of the car.
Choosing the Right Tire
What should I consider when choosing tires for a 2004 Maserati Quattroporte?
Start with the correct staggered sizes: 245/45R18 for the front and 285/40R18 for the rear. From there, compare radial tire options by brand, tire series, sidewall treatment, and wheel-width compatibility so the tires match both the car’s layout and the way it will be used.
BFGoodrich, Nitto, and Pro-Trac all appear in the available choices, but they are not identical in presentation. Some options lean toward a more contemporary blackwall look, while others add redline or raised white letter styling, so the better choice depends on whether appearance, road use, or a balanced mix of both is the priority.
What sidewall styles are available for 2004 Maserati Quattroporte tires?
Sidewall choices for the 2004 Maserati Quattroporte include blackwall, redline, and raised white letter treatments. The front 245/45R18 selections are blackwall, while the rear 285/40R18 size includes blackwall as well as redline and raised white letter options.
That distinction matters because sidewall style can change the car’s presentation even when the size remains correct. A buyer trying to keep the look understated may stay with blackwalls, while someone after a more expressive period-inspired appearance may focus on the rear-size options that offer redline or raised white letter styling.
What brands offer tires for the 2004 Maserati Quattroporte?
Tire choices for the 2004 Maserati Quattroporte include BFGoodrich, Nitto, and Pro-Trac, depending on size. BFGoodrich and Nitto appear in the 245/45R18 front size, while Nitto and Pro-Trac are available in the 285/40R18 rear size.
Brand comparison should still stay rooted in the correct front or rear fitment first. Once the position is confirmed, the more useful comparison points are tire series, sidewall styling, and wheel-width suitability, since those factors shape whether the final choice better matches a subtle touring look or a more aggressive visual treatment.
Restoration & Appearance
Which tire should I choose for a period-style 2004 Maserati Quattroporte?
A period-style choice for a 2004 Maserati Quattroporte starts with preserving its proper staggered sizing: 245/45R18 in front and 285/40R18 in the rear. From there, the most appearance-sensitive decision is usually sidewall treatment and overall tire presentation rather than changing away from the original size relationship.
Blackwall tires maintain a restrained modern luxury look, while redline or raised white letter rear options create a more expressive visual statement. Buyers pursuing a highly exact restoration standard should compare any final sidewall decision against marque-specific references and period photography, since period-style and exact originality are not always the same thing.
How does tire construction affect the appearance of a restored 2004 Maserati Quattroporte?
Tire construction is less of a visual dividing line here because the 2004 Maserati Quattroporte uses radial fitments in both of its primary sizes. The more noticeable appearance differences come from the tire series chosen and from sidewall styling, especially at the wider rear position.
That means a restoration-oriented buyer can keep the correct radial format while still shaping the car’s final look through blackwall, redline, or raised white letter choices where available. Size accuracy remains the foundation, since preserving the proper front-to-rear stagger does more for the car’s stance than any cosmetic sidewall change alone.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2004 Maserati Quattroporte?
Yes. Even though the 2004 Maserati Quattroporte uses 245/45R18 front and 285/40R18 rear tires on 18-inch rims, aftermarket wheels, altered offsets, suspension changes, or body modifications can change what works safely and cleanly on the car.
A modified car should be checked for actual wheel width, tire-to-fender clearance, and steering or suspension interference before new tires are chosen. That matters even more with a staggered setup, because the front and rear do different jobs and each position has its own width requirements that should be confirmed against the current hardware.
What should I inspect before driving a 2004 Maserati Quattroporte on new tires?
Before putting a 2004 Maserati Quattroporte back into regular road use, inspect tire pressure, valve stems, wheel condition, and the basic health of the suspension and alignment-related components. It also helps to verify that the front 245/45R18 and rear 285/40R18 tires are installed in the correct positions.
A quick visual check for rubbing marks, uneven clearance, or signs of contact under steering lock is worthwhile before a longer drive. Collector and specialty cars can sit for long periods, so it is smart to look beyond tread depth and check for age-related cracking, bulges, cuts, or unexplained air loss as well.
How should tires on a 2004 Maserati Quattroporte be maintained?
Tires on a 2004 Maserati Quattroporte should be maintained with regular pressure checks, routine visual inspection, and attention to wear patterns at both ends of the car. Because the car uses a staggered setup, front and rear tires should be monitored as separate fitments rather than treated as one interchangeable group.
Storage conditions matter on a low-use performance sedan, so keeping the car away from prolonged sunlight, excess heat, moisture, and ozone sources helps protect the tire sidewalls. Periodic inspection is especially important when mileage is low, since age, flat spotting, and slow air loss can become bigger concerns than tread wear alone.
