The 2004 Buick Regal belongs to the final stretch of Buick’s long-running front-wheel-drive midsize sedan formula, blending traditional comfort with trim-specific personality. In this model year, tire selection matters because the Regal did not use one universal setup across the lineup. The GS uses 225/60R16 radials, while LS models can use 215/70R15 or, in some package configurations, either 15-inch or 16-inch radial fitment. That creates real choices in sidewall style, brand, and overall presentation, from blackwall and raised white letter looks to whitewall and redline options. The right decision starts with confirming the exact sub-model and wheel diameter already on the car.
Which Tire Size Is Right for The 2004 Buick Regal
Two primary tire sizes apply to the 2004 Buick Regal, and they are tied to sub-model and wheel-diameter differences rather than a simple one-size-fits-all fitment. Before choosing a tire, confirm whether the car is using a 15-inch or 16-inch wheel and then match that to the exact trim or package configuration, since some LS variants can use either size.
Fit(s): GS, LS w/Leather Pkg., and LS w/Luxury Pkg.
Construction: Radial|Rim: 16 in
In 225/60R16, the 225 is the section width in millimeters, 60 is the aspect ratio, R identifies radial construction, and 16 is the wheel diameter in inches. This is a modern metric radial size used on 16-inch Regal applications, including the GS and certain LS package versions. Available choices include Goodyear, BFGoodrich, and Travelstar, with sidewall treatments such as raised yellow letter, redline, pin white stripe, wide whitewall, and narrow whitewall. It is the size to evaluate when your Regal already has the 16-inch wheel setup and you want to match that configuration correctly.
Fit(s): LS, LS w/Leather Pkg., and LS w/Luxury Pkg.
Construction: Radial|Rim: 15 in
In 215/70R15, the 215 is the nominal section width in millimeters, 70 is the aspect ratio, R means radial, and 15 indicates a 15-inch rim. This modern metric radial size applies to 15-inch Regal fitments, including the LS and some package-equipped LS versions. The selection is broad, with brands such as Cooper, BFGoodrich, Dunlop, Avon, Michelin, Maxxis, Coker Classic, Travelstar, and Vredestein, plus blackwall, raised white letter, redline, pin white stripe, narrow whitewall, and wide whitewall styles. It is the practical starting point when the car retains its 15-inch wheel package and appearance choice is part of the decision.
Sub-model fitment matters on the 2004 Buick Regal because tire size changes with trim and wheel package. Some versions are straightforward, while others can use either 15-inch or 16-inch radial fitment, so identifying the exact sub-model and current wheel setup comes first.
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2004 Buick Regal GS
The 2004 Buick Regal GS uses a 16-inch radial fitment centered on 225/60R16. Tire selection then becomes a matter of choosing the sidewall style and series that best suit the car’s appearance and intended road use while staying with the correct wheel diameter.
The 2004 Buick Regal LS uses a 15-inch radial setup with 215/70R15. That gives the owner access to a wide range of blackwall, whitewall, redline, and raised white letter choices, making it easier to balance stock-style proportions with the look preferred for the car.
The 2004 Buick Regal LS w/Leather Pkg. can use either 215/70R15 or 225/60R16 depending on the wheel configuration on the car. Checking the actual wheel diameter is essential here, because the correct tire choice depends on whether the vehicle is wearing the 15-inch or 16-inch setup.
The 2004 Buick Regal LS w/Luxury Pkg. can be fitted with either 215/70R15 or 225/60R16, so there is no single universal answer without confirming the wheels. Once the rim diameter is verified, the choice shifts to brand, sidewall style, and the overall presentation you want from the finished tire.
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 Buick Regal Tires for Sale
Available 2004 Buick Regal tire choices span both primary sizes, with strong variety in brand, tire series, and sidewall presentation. Depending on wheel size, options include BFGoodrich, Goodyear, Cooper, Dunlop, Avon, Michelin, Maxxis, Coker Classic, Travelstar, and Vredestein in blackwall, raised white letter, whitewall, pin stripe, and redline styles.
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Goodyear Tires
Goodyear Eagle NASCAR Raised Yellow Letter | 225/60R16
Common 2004 Buick Regal tire questions usually come down to trim-specific size, 15-inch versus 16-inch wheel fitment, and how to choose among the available radial styles. The details below also cover appearance choices, modifications, and pre-drive inspection points.
Tire Size & Fitment
What tire size fits a 2004 Buick Regal?
A 2004 Buick Regal can use either 225/60R16 or 215/70R15, depending on the sub-model and wheel package. The GS uses 225/60R16, the LS uses 215/70R15, and certain LS models with Leather or Luxury packages may use either size.
The key is matching the tire to the actual wheel diameter on the car rather than assuming every Regal used the same setup. A quick check of the trim level and the existing wheel size will usually settle the question before comparing brands, sidewall styles, or tire series.
What size rim does a 2004 Buick Regal use?
The 2004 Buick Regal uses either a 15-inch or 16-inch rim, depending on configuration. The 215/70R15 size is built for a 15-inch wheel, while the 225/60R16 size is built for a 16-inch wheel.
That rim difference matters before anything else, because a 15-inch tire cannot be mounted on a 16-inch wheel and vice versa. On LS models with package-based variation, checking the wheel itself is the fastest way to avoid ordering the right tire size for the wrong rim diameter.
Do all 2004 Buick Regal sub-models use the same tire size?
No, 2004 Buick Regal sub-models do not all use the same tire size. The GS uses 225/60R16, the LS uses 215/70R15, and the LS w/Leather Pkg. and LS w/Luxury Pkg. can be equipped with either size.
That means tire selection starts with the exact sub-model and then the wheel diameter currently on the vehicle. Package-equipped LS cars deserve an extra check, especially if wheels have ever been changed, because the tire size follows the wheel setup rather than the Regal name alone.
Choosing the Right Tire
What should I consider when choosing a 2004 Buick Regal tire?
Start with the correct primary size for the car’s trim and wheel diameter, then compare the available radial options within that size. For a 2004 Buick Regal, that means choosing between 215/70R15 and 225/60R16 first, then looking at sidewall style, brand, tire series, and rim-width compatibility.
A Regal kept close to stock may call for one kind of appearance, while a more personalized car may lean toward raised white letters, redlines, or whitewalls. It also helps to confirm that the wheel width falls within the tire’s intended range before narrowing the choice to a specific product.
What sidewall styles are available for 2004 Buick Regal tires?
2004 Buick Regal tires are available in several sidewall styles, including blackwall, raised white letter, redline, pin white stripe, narrow whitewall, wide whitewall, and raised yellow letter depending on size. The exact mix changes between 215/70R15 and 225/60R16.
That variety gives the Regal owner room to shape the car’s presentation without changing the primary fitment. A blackwall keeps the look restrained, while whitewall, redline, or lettered sidewalls add more visual character, so the final decision often comes down to whether the car is being kept formal, sporty, or more period-inspired.
What brands offer tires for the 2004 Buick Regal?
Tires for the 2004 Buick Regal are available from several brands, including BFGoodrich, Goodyear, Travelstar, Cooper, Dunlop, Avon, Michelin, Maxxis, Coker Classic, and Vredestein. Brand availability depends on whether the car uses 215/70R15 or 225/60R16.
That range is useful because it gives buyers more than one path within the correct size, from classic-style whitewall and redline radials to blackwall and raised white letter options. The best comparison points are size, wheel compatibility, sidewall appearance, and the tire series character rather than brand name alone.
Restoration & Appearance
Which tire should I choose for a period-style 2004 Buick Regal?
A period-style 2004 Buick Regal tire choice starts with the correct primary size for the trim and wheel diameter, then moves to appearance. In 215/70R15 and 225/60R16, there are radial options with whitewall, narrow whitewall, pin white stripe, and redline styling that can give the car a more traditional presentation.
That approach keeps the visual focus on the Regal’s original era without claiming that any one sidewall treatment was universal across every car. Buyers pursuing a highly exact restoration should compare the tire choice against window-sticker history, showroom literature, or marque-specific references before settling on one look.
How does tire construction affect the appearance of a restored 2004 Buick Regal?
On the 2004 Buick Regal, primary fitment is radial, so the appearance question is less about bias-ply versus radial and more about how the radial tire is styled. Sidewall treatment changes the car’s look far more noticeably here, especially when comparing blackwall, lettered, redline, and whitewall choices.
A restored Regal can look understated or much more expressive depending on that sidewall choice, even when the size remains correct. Matching the wheel diameter and overall tire format comes first, but the final visual impression often hinges on whether the car is being finished as a clean driver, a nostalgic cruiser, or a sharper sport-oriented build.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2004 Buick Regal?
Yes, modifications can affect tire fitment on a 2004 Buick Regal even when the tire size itself is correct for a factory configuration. Aftermarket wheels, changes in wheel width, suspension alterations, or ride-height changes can all influence clearance at the fender, strut, and steering points.
That is especially important on LS package cars that may already have either 15-inch or 16-inch wheel setups. A Regal that has been changed from stock should be checked as it sits now, with attention to wheel diameter, wheel width, and clearance through the full steering range.
What should I inspect before driving a 2004 Buick Regal on new tires?
Before driving a 2004 Buick Regal on new tires, inspect the wheels for damage, confirm the tire size matches the rim diameter, and make sure inflation is set correctly for the installed tires. It is also wise to look over valve stems, lug hardware, and basic suspension condition.
A short initial road test helps reveal any rubbing, vibration, or pulling that should be addressed early. After that first drive, recheck pressure and look for any signs of contact inside the wheelwell, especially if the car has package-based wheel variation or has ever worn aftermarket wheels.
How often should tires on a 2004 Buick Regal be inspected?
Tires on a 2004 Buick Regal should be inspected regularly, not just when tread looks low. Check for uneven wear, cracking, cuts, bulges, and slow air loss, and give collector-driven or low-mileage cars extra attention because age and storage conditions can matter as much as mileage.
A monthly pressure and condition check is a sensible routine, with a closer inspection before longer highway trips. Cars that spend a lot of time parked benefit from watching for flat-spotting and sidewall aging, while frequently driven Regals should also be monitored for wear patterns that may point to alignment or suspension issues.
