The 2004 Pontiac Grand Prix marked a modern phase for Pontiac’s long-running midsize performance sedan, blending front-wheel-drive practicality with the division’s sport-oriented character. Buyers looking at this generation often balance everyday road use with a desire to keep the car’s appearance in step with Pontiac’s performance image. Tire fitment centers on two radial sizes, 225/60R16 and 225/55R17, with the correct choice tied to the specific Grand Prix sub-model and wheel diameter. Available options range from blackwall performance-style radials to redline, whitewall, and raised-yellow-letter treatments. The key is matching the tire to the car’s exact setup, driving use, and visual direction before making a selection.
Which Tire Size Is Right for The 2004 Pontiac Grand Prix
The 2004 Pontiac Grand Prix uses two primary tire sizes, and the correct one depends on the exact sub-model and wheel diameter. GT1 and GT2 models use a 16-inch radial setup, while GTP configurations use a 17-inch radial setup. Before comparing brands or sidewall styles, the first step is confirming whether the car is equipped with the 16-inch or 17-inch wheel package.
In 225/60R16, the 225 is the nominal section width in millimeters, 60 is the aspect ratio, R indicates radial construction, and 16 is the wheel diameter in inches. This is a modern radial size used on 16-inch Grand Prix applications, giving buyers a straightforward replacement path in the original sizing format. 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 right size to evaluate for GT1 and GT2 models, with final selection guided by wheel width, appearance goals, and intended road use.
Fit(s): GTP Front, GTP Rear, GTP w/Competition Group Pkg. Front, and GTP w/Competition Group Pkg. Rear
Construction: Radial|Rim: 17 in
In 225/55R17, the 225 denotes nominal section width in millimeters, 55 identifies the aspect ratio, R means radial construction, and 17 identifies the rim diameter in inches. This size serves the 17-inch Grand Prix fitment and suits the more performance-oriented GTP configurations. Product choices include BFGoodrich performance series in blackwall form as well as Silvertown Radial options with whitewall and redline styling. It is the size to confirm when the car carries the 17-inch wheel package, especially since appearance and performance-oriented tire character vary noticeably within this fitment.
Sub-model fitment matters on the 2004 Pontiac Grand Prix because tire size changes with the wheel package. GT1 and GT2 models share one setup, while GTP versions use a different size on a larger rim, so identifying the exact sub-model comes before choosing a tire.
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2004 Pontiac Grand Prix GT1
The 2004 Pontiac Grand Prix GT1 uses the 225/60R16 radial fitment on a 16-inch wheel. That keeps tire selection focused on choosing the right sidewall style, brand, and rim-width compatibility within the correct size rather than sorting through multiple primary fitments.
The 2004 Pontiac Grand Prix GT2 also uses the 225/60R16 radial tire size. Tire choice here is mainly about selecting the look and product character that suits the car, whether that means a traditional sidewall treatment or a more performance-themed presentation.
The 2004 Pontiac Grand Prix GTP Front uses the 225/55R17 radial size on a 17-inch wheel. That places the emphasis on confirming the larger wheel setup and then deciding between blackwall performance-style tires and restoration-inspired whitewall or redline options.
The 2004 Pontiac Grand Prix GTP Rear uses the same 225/55R17 radial size as the front. Since the fitment stays consistent, the real decision becomes choosing a tire that matches the car’s intended use, wheel specification, and overall appearance.
2004 Pontiac Grand Prix GTP w/Competition Group Pkg. Front
The 2004 Pontiac Grand Prix GTP w/Competition Group Pkg. Front uses the 225/55R17 radial fitment. Tire selection should stay centered on the 17-inch setup, with attention paid to sidewall style, tire series, and wheel-width suitability before moving away from the current configuration.
2004 Pontiac Grand Prix GTP w/Competition Group Pkg. Rear
The 2004 Pontiac Grand Prix GTP w/Competition Group Pkg. Rear also uses the 225/55R17 radial size. Because the rear matches the front, buyers can focus on choosing the right product style and verifying that the tire complements the car’s wheel and suspension setup.
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 Pontiac Grand Prix Tires for Sale
Available 2004 Pontiac Grand Prix tires span 225/60R16 and 225/55R17 radial fitments from Goodyear, BFGoodrich, and Travelstar. The product mix includes performance-oriented blackwall and raised-yellow-letter choices along with Silvertown Radial redline, whitewall, and pin-stripe styles for a more custom or restoration-inspired look.
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Goodyear Tires
Goodyear Eagle NASCAR Raised Yellow Letter | 225/60R16
Common 2004 Pontiac Grand Prix tire questions usually come down to identifying the correct size by sub-model, confirming 16-inch versus 17-inch wheels, and choosing between performance-style and appearance-driven radial options.
Tire Size & Fitment
What tire size fits a 2004 Pontiac Grand Prix?
The 2004 Pontiac Grand Prix uses two primary tire sizes: 225/60R16 and 225/55R17. GT1 and GT2 models use 225/60R16, while GTP and GTP with Competition Group Package front and rear positions use 225/55R17.
The important step is matching the tire size to the car’s actual wheel package rather than the model name alone. A Grand Prix that has had wheel changes over the years may no longer wear its original diameter, so checking the current wheel size and the sub-model before ordering helps prevent a mismatch.
What size rim does a 2004 Pontiac Grand Prix use?
A 2004 Pontiac Grand Prix uses either a 16-inch or 17-inch rim, depending on the sub-model. The 225/60R16 fitment is built around a 16-inch wheel, while the 225/55R17 fitment is built around a 17-inch wheel.
Rim diameter is the first thing to confirm because a 16-inch tire cannot be mounted on a 17-inch wheel, and the reverse is also true. It also helps to verify wheel width, especially if the car has aftermarket wheels, since available tires in these sizes can carry different approved rim-width ranges.
Do all 2004 Pontiac Grand Prix sub-models use the same tire size?
No. The 2004 Pontiac Grand Prix has split fitment by sub-model. GT1 and GT2 share 225/60R16, while GTP models, including Competition Group Package front and rear applications, use 225/55R17.
That means tire selection starts with identifying the exact Grand Prix configuration and wheel diameter before comparing brands or sidewall styles. Even though the two sizes are close in overall proportions, they mount to different rim diameters, so the sub-model and current wheel setup both need to line up with the tire you choose.
Choosing the Right Tire
What should I consider when choosing a 2004 Pontiac Grand Prix tire?
Start with the correct size for the car’s setup: 225/60R16 for GT1 and GT2, or 225/55R17 for GTP configurations. From there, compare radial construction details such as approved rim-width range, sidewall style, tire series, and any load specification that matters for how the car is used.
The best choice depends on whether the goal is a performance-oriented look, a more traditional appearance, or a balanced road-use replacement. A Grand Prix with stock wheels can stay close to its intended fitment, while one with aftermarket wheels or suspension changes deserves a closer check on clearance and wheel compatibility.
What sidewall styles are available for 2004 Pontiac Grand Prix tires?
Sidewall choices for the 2004 Pontiac Grand Prix include blackwall, raised-yellow-letter, redline, pin-white-stripe, wide whitewall, and narrow whitewall, depending on size. The 16-inch fitment has the broadest appearance variety, while the 17-inch fitment includes blackwall, redline, and wide whitewall options.
That variety lets the tire change the car’s personality without moving away from the correct size. A buyer aiming for a sportier Pontiac feel may lean toward blackwall or raised-letter styling, while a custom or nostalgic presentation may point toward redline or whitewall treatments in the proper wheel diameter.
What brands offer tires for the 2004 Pontiac Grand Prix?
Tires for the 2004 Pontiac Grand Prix are available from Goodyear, BFGoodrich, and Travelstar. Brand availability depends on size, with BFGoodrich appearing across both fitments, Goodyear represented in 225/60R16, and Travelstar also appearing in the 16-inch size.
Brand choice should be considered alongside tire series, sidewall treatment, and wheel compatibility rather than on name alone. Some options are aimed more at performance-style presentation, while others focus on traditional sidewall styling, so the right match comes from pairing the correct size with the look and use you want.
Restoration & Appearance
Which tire should I choose for a period-style 2004 Pontiac Grand Prix?
A period-style 2004 Pontiac Grand Prix tire starts with the correct size for the sub-model and then narrows by appearance. BFGoodrich Silvertown Radial options in redline, whitewall, or pin-stripe form can give the car a more distinctive custom-era presentation while staying within the proper radial fitment family.
The right choice depends on how closely the car is being returned to a remembered showroom-era look versus a personalized enthusiast style. Exact originality questions are best checked against Pontiac literature, period photos, or marque-specific references, especially if the goal is to match a specific appearance rather than simply stay size-correct.
How does tire construction affect the appearance of a restored 2004 Pontiac Grand Prix?
On a 2004 Pontiac Grand Prix, construction changes are less of the visual issue than sidewall treatment because the primary fitments are already radial. The more noticeable appearance differences come from whether the tire is blackwall, raised-yellow-letter, redline, whitewall, or pin-white-stripe.
That makes the tire’s sidewall the main styling tool when refining the car’s finished look. A Grand Prix restored with a sport-driven theme may suit blackwall or raised-letter tires, while a custom or nostalgia-inspired approach may look better with redline or whitewall styling in the correct 16-inch or 17-inch size.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2004 Pontiac Grand Prix?
Yes. Modifications can change how a tire fits on a 2004 Pontiac Grand Prix even when the tire size sounds close to original. Aftermarket wheels, altered offsets, suspension lowering, spring changes, or brake upgrades can all affect clearance and wheel compatibility.
A modified Grand Prix should be checked at the wheel, not just by catalog size. Confirm wheel diameter and width first, then look at clearance to the fender, strut, and steering components through full travel and lock. That extra check matters most when moving between the 16-inch and 17-inch fitment families.
What should I inspect before driving a 2004 Pontiac Grand Prix on new tires?
Before road use, inspect inflation pressure, wheel condition, lug hardware, valve stems, and overall tire condition. It also helps to verify that all four tires match the intended fitment for the car and that there is no rubbing at steering lock or under normal suspension movement.
A careful first inspection is especially worthwhile on an older Grand Prix that may have seen wheel swaps or suspension wear over time. After installation, recheck pressure and look for any signs of contact, uneven stance, or vibration so small fitment issues can be corrected before a longer drive.
How often should tires on a 2004 Pontiac Grand Prix be inspected?
Tires on a 2004 Pontiac Grand Prix should be inspected regularly, not just at service intervals. Pressure, tread wear, sidewall condition, and any sign of cuts, bulges, or air loss are worth checking routinely, especially on a car that sees occasional use rather than constant daily driving.
Collector-minded or lightly driven cars can develop age-related tire issues long before the tread looks worn out. A brief visual check before each drive and a more thorough inspection during seasonal maintenance helps catch cracking, uneven wear, or storage-related deterioration before it affects ride quality or roadworthiness.
