The 2008 Dodge Magnum came at the end of Chrysler’s modern rear-drive wagon era, blending full-size practicality with muscle-car attitude in a way few American wagons ever did. Trim level matters quite a bit on this car because tire fitment ranges from 17-inch touring sizes to aggressive 20-inch performance applications, and the SRT8 uses a staggered setup. Every primary fitment for the 2008 Dodge Magnum is radial, with sizes including 215/65R17, 225/60R18, 245/45R20, and 255/45R20. Available choices also vary by brand, tire series, and sidewall style, including blackwall, redline, and raised white letter options. The right choice starts with confirming the exact sub-model and wheel setup before narrowing by appearance and intended road use.
Which Tire Size Is Right for The 2008 Dodge Magnum
The 2008 Dodge Magnum uses four primary tire sizes, and the correct one depends on the exact sub-model and wheel diameter. Fitment spans 17-inch, 18-inch, and 20-inch rims, with some trims sharing a size and others using a dedicated performance setup. Before choosing a tire, confirm whether the car is an SE, SXT, R/T, SRT8, or a performance-package configuration, then verify the actual wheel diameter on the vehicle.
255/45R20 is a metric radial size with a wider 255-millimeter nominal section width, a 45-series profile, and a 20-inch rim diameter. On the 2008 Dodge Magnum, it serves as the rear tire size for the SRT8’s staggered 20-inch arrangement rather than a universal Magnum fitment. Product choices include BFGoodrich, Nitto, and Pro-Trac options, again with blackwall, redline, and RWL treatments available across the applicable lineup. This size should be evaluated as a rear-position performance fitment, with attention paid to wheel width and maintaining the intended front-to-rear relationship on the car.
Tire fitment on the 2008 Dodge Magnum is not one-size-fits-all. Several sub-models share a common size, but others move to different wheel diameters or a 20-inch performance setup, so identifying the exact trim and driveline is the first step before comparing tire choices.
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2008 Dodge Magnum R/T (AWD)
The 2008 Dodge Magnum R/T (AWD) uses the 225/60R18 radial size. That makes the decision less about multiple primary fitments and more about confirming the 18-inch wheel, then choosing the tire that best matches how the car is driven and presented.
The 2008 Dodge Magnum R/T (RWD) also uses the 225/60R18 radial fitment. Buyers with this configuration should verify that the car has retained its 18-inch wheel setup, especially if it has been modified, before narrowing choices by tire character and appearance.
The 2008 Dodge Magnum R/T (RWD) w/Performance Pkg. moves to a 245/45R20 radial tire. That shift makes wheel diameter especially important, and once the 20-inch setup is confirmed, the selection can be refined by brand, sidewall treatment, and tire series.
The 2008 Dodge Magnum SE uses the 215/65R17 radial size. For this trim, the main fitment question is confirming that the car still wears 17-inch wheels before selecting a tire suited to routine road use and the Magnum’s wagon profile.
The 2008 Dodge Magnum SRT8 uses 20-inch tires and should be approached with attention to the vehicle’s performance-oriented wheel setup. Tire selection here is less about broad interchange and more about keeping the proper front and rear sizing relationship in place.
The front position on the 2008 Dodge Magnum SRT8 uses 245/45R20. That makes front-tire selection part of a staggered arrangement, so the goal is to match the intended 20-inch front fitment rather than treat it as a standalone all-around size.
The rear position on the 2008 Dodge Magnum SRT8 uses 255/45R20. This wider rear fitment should be chosen with the matching front setup in mind, along with wheel-width confirmation and clearance checks on any car that no longer sits on its original wheel package.
The 2008 Dodge Magnum SXT (AWD) uses the 225/60R18 radial tire size. That places it with the Magnum’s 18-inch fitments, where the next decision is comparing available tire styles after confirming the wheel diameter actually on the vehicle.
The 2008 Dodge Magnum SXT (RWD) can use either a 215/65R17 or 225/60R18 radial tire, so wheel diameter has to be confirmed before anything else. Once that is established, the correct search becomes simple, but choosing by trim name alone can lead to the wrong size.
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 2008 Dodge Magnum Tires for Sale
Available 20-inch Dodge Magnum tire choices center on 245/45R20 and 255/45R20 sizes from BFGoodrich, Nitto, and Pro-Trac. The product grid is where to compare tire series, blackwall versus redline or RWL sidewalls, and rim-width specifications for the correct front or rear application.
Owners of a 2008 Dodge Magnum usually need to sort out trim-specific tire size, wheel diameter, and 20-inch performance fitment before comparing brands and sidewall styles. These FAQs focus on size selection, product choice, modifications, and road-use checks.
Tire Size & Fitment
What tire size fits a 2008 Dodge Magnum?
A 2008 Dodge Magnum can use 215/65R17, 225/60R18, 245/45R20, or 255/45R20 depending on the exact sub-model and wheel setup. The SE uses 215/65R17, several R/T and SXT applications use 225/60R18, and 20-inch fitments appear on the R/T with Performance Package and the SRT8.
The correct choice starts with confirming the trim and the wheel diameter actually on the car. That matters because the Magnum range spans 17-inch, 18-inch, and 20-inch rims, and the SRT8 also uses a staggered front-and-rear arrangement rather than one universal size at all four corners.
What size rim does a 2008 Dodge Magnum use?
The 2008 Dodge Magnum uses 17-inch, 18-inch, or 20-inch rims depending on the sub-model. The 215/65R17 size mounts on a 17-inch rim, 225/60R18 uses an 18-inch rim, and both 245/45R20 and 255/45R20 are built for 20-inch rims.
Rim diameter is the first fitment detail to verify because the Magnum was offered with several wheel packages. Reading the sidewall on the current tire is helpful, but it is still smart to confirm the actual wheel size on the vehicle, especially if the car has changed hands or wears aftermarket wheels.
Why does the 2008 Dodge Magnum have more than one tire size?
The 2008 Dodge Magnum has more than one tire size because tire fitment changes across trim levels, driveline layouts, and performance-oriented configurations. Touring-minded models use smaller wheel packages, while 20-inch sizes appear on the R/T with Performance Package and the SRT8, including a wider rear tire on the SRT8.
That means the trim badge alone is not always enough, particularly on the SXT and SRT8. The practical next step is to confirm both the exact sub-model and the wheel diameter, then match the front and rear sizing correctly if the car uses a staggered setup.
Choosing the Right Tire
What should I consider when choosing a 245/45R20 tire for a 2008 Dodge Magnum?
A 245/45R20 tire for a 2008 Dodge Magnum should first match the correct application, since this size is used on the R/T with Performance Package and the front position on the SRT8. After that, compare the available radial choices by brand, tire series, sidewall style, and rim-width specification.
BFGoodrich, Nitto, and Pro-Trac options give this size a noticeably different character in the product grid, from blackwall performance styling to redline and RWL presentation. It also helps to confirm whether the tire is being chosen for a paired front-rear setup or a four-tire same-size application before making a final decision.
What sidewall styles are available for 2008 Dodge Magnum tires?
Among the available 20-inch Dodge Magnum products, sidewall styles include blackwall, redline, and RWL. Those choices appear in both 245/45R20 and 255/45R20, giving performance-oriented Magnum owners room to decide whether they want a more understated look or a more traditional muscle-inspired presentation.
Sidewall style does not change the tire size requirement, so appearance should be chosen only after the fitment is correct. On a Magnum with 20-inch wheels, the sidewall treatment can have a strong visual effect, especially on an SRT8 or Performance Package car, but front and rear sizing still has to stay properly matched.
What brands offer tires for the 2008 Dodge Magnum?
The available 20-inch tire options for the 2008 Dodge Magnum include BFGoodrich, Nitto, and Pro-Trac. Across 245/45R20 and 255/45R20, those brands appear in several tire series, including g-Force Sport Comp 2, g-Force Comp 2 AS, g-Force Phenom T/A, Nitto NT555 G2, and Pro-Trac Street Pro III.
Brand choice is most useful once the correct size and wheel setup are already confirmed. From there, compare the series and sidewall presentation that best suit the car, whether the goal is a plain blackwall look or a more visible redline or raised white letter treatment on a 20-inch Magnum application.
Restoration & Appearance
Which tire should I choose for a period-style 2008 Dodge Magnum?
A period-style 2008 Dodge Magnum tire choice starts with keeping the correct size for the exact trim and wheel package. Since this Magnum belongs to the late rear-drive wagon era rather than the vintage bias-ply era, the visual decision usually centers on whether to stay with a straightforward blackwall or choose a more expressive 20-inch sidewall treatment.
On performance-oriented applications, redline and RWL options can push the look in a more custom or muscle-inspired direction, while blackwall keeps the presentation cleaner. For buyers concerned with strict originality, tire appearance should be checked against period photos, window-sticker evidence, or marque-specific reference material before settling on a style.
How does tire construction affect the appearance of a restored 2008 Dodge Magnum?
All primary tire fitments for the 2008 Dodge Magnum are radial, so the construction question here is less about bias-ply versus radial appearance and more about how the chosen radial size and sidewall treatment shape the car’s stance. A 17-inch touring setup, an 18-inch R/T fitment, and a 20-inch performance package each give the wagon a different visual presence.
That makes wheel diameter and sidewall style the biggest appearance factors for a restoration-minded owner. A blackwall tire can preserve a restrained modern look, while redline or RWL options on the 20-inch sizes create a bolder presentation, especially on cars restored to highlight the Magnum’s late muscle-wagon personality.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2008 Dodge Magnum?
Yes, modifications can affect tire fitment on a 2008 Dodge Magnum. Aftermarket wheels, suspension changes, lowering, altered offsets, and body modifications can all change how a 215/65R17, 225/60R18, 245/45R20, or 255/45R20 tire sits in the wheel opening and how much clearance remains during steering and suspension movement.
That matters most on 20-inch cars and staggered SRT8 setups, where front and rear sizes already serve different roles. Any Magnum that no longer carries its original wheel package should have wheel diameter, width, and clearance checked carefully before new tires are chosen, even when the size seems correct at first glance.
What should I inspect before driving a 2008 Dodge Magnum on new tires?
Before driving a 2008 Dodge Magnum on new tires, inspect wheel condition, verify the tire size against the trim and wheel diameter, and check that each tire is seated and inflated properly. It is also wise to look over the suspension and steering for worn parts that could affect alignment or cause uneven wear soon after installation.
A close visual check should also include sidewall condition on any existing spare, lug hardware, and clearance at the fenders and suspension points. On SRT8 models or any Magnum with 20-inch wheels, take extra care to confirm the correct front-versus-rear placement so the car is not accidentally driven with a mismatched staggered setup.
What should I check before a longer drive in a 2008 Dodge Magnum?
Before a longer drive in a 2008 Dodge Magnum, check tire pressure, tread condition, signs of cracking or impact damage, and any uneven wear that could point to alignment or suspension issues. A Magnum that sees occasional use should also be checked for slow air loss, since a car can sit for long periods and still appear fine at a glance.
Longer trips put more heat and sustained load into the tires, so it helps to confirm that the correct size is mounted at each position and that the spare and roadside tools are present. On cars with staggered 20-inch fitment, make sure front and rear tires have not been mixed during previous service.
