2003 Ford Mustang Bolt Pattern

With help from Jerry, you can learn your 2003 Ford Mustang bolt pattern—plus the specs you need to make wheel modifications with ease.
Written by Kathryn Kurlychek
Reviewed by Shannon Martin
A 2003 Mustang has a bolt pattern of 5x4.5, meaning each wheel has 5 bolts forming a circle that’s four and a half inches in diameter.  
Upgrading your Mustang’s wheels is an easy way to enhance performance and achieve the aesthetic of your dreams. But to get there, you’ll need a few key pieces of information first—including your Mustang’s bolt pattern. 
If you need to know the bolt pattern for your 2003 Mustang, you’re in the right place.
, the
car insurance
comparison super app, is here with a breakdown of the information you need to successfully modify your Mustang’s wheels. In addition, we’ll help you find your bolt pattern yourself, and throw out a few tips to keep your
Ford Mustang car insurance costs
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2003 Mustang bolt pattern 

The bolt pattern for most Ford Mustangs
, including the 2003 Mustang, is 5x4.5 or 5 on 4.5. The bolt pattern (also commonly called a lug pattern) indicates the number and spacing of the lug holes on your vehicle’s rims, and is typically expressed as two numbers: 
# of bolts x diameter of the circle they form
A 5x4.5 lug pattern simply means that your Mustang’s wheels have five lugs each, spaced in a circle that’s four and a half inches in diameter. 
It’s important to know your vehicle’s bolt pattern before modifying your wheels—but that’s not the only measurement you’ll need. If you’re working toward wheel mods, you’ll also want to know your Mustang’s stud size, wheel offset, center bore measurement, and more: 
  • Factory wheel size: 16” to 17”
  • Stud size: M12 x 1.76
  • Offset: 20 to 45 mm
  • Center bore: 70.5 mm

How to measure your Mustang’s bolt pattern

The numbers above should be enough for you to make the changes you want to your Mustang’s wheel setup! But if you feel like double-checking your 2003 Mustang bolt pattern, there’s a way to measure it yourself. 
For a DIY check, all you’ll need is a measuring tape or ruler. Start by picking any bolt on your Mustang’s wheel, then measure from the outer edge of the lug hole to the center of the opposite bolt. Don’t try to measure straight across—since your Mustang has an odd number of bolts (five), you won’t get an accurate measurement.
Instead, pick either of the nearest bolts across from it and measure to the center. The measurement you get is your diameter. Just put that together with the number of bolts, and you’ve got your bolt pattern!

How to optimize your Mustang’s insurance coverage

Upgrading your Mustang’s wheels can optimize its on-road performance—but it can also up the price you pay for car insurance. 
Why? For one, modifying your Mustang means it might be more desirable and prone to theft. Make sure your current policy has
comprehensive coverage
and see if you have the option to add a customized equipment endorsement to protect those new rims! 
That’s why it’s a good idea to upgrade your policy, too. Luckily, finding the best deals on car insurance is exactly what the
app was designed to do. A licensed broker and
top-rated super app
, Jerry can generate dozens of competitive quotes from the top name-brand providers in under 60 seconds. 
Compare rates side-by-side, make changes to your policy, and even swap insurance plans—all from the convenience of your phone. 
“You must get this app! It’s my first time getting my own insurance, so I called a few companies myself. Their rates priced me around $600/month. I used
and my rates went down to $250/month. I’m so happy!” —Melissa C. 
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The bolt pattern in a 2003 Mustang is 5x4.5, or 5 bolts set in a circle that’s 4.5 inches in diameter.
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