I Tested 6×139.7 and Found It’s the Same as 6×5.5: What I Learned
I’ve noticed that one of the most common questions people run into when shopping for wheels or comparing bolt patterns is whether 6×139.7 is the same as 6×5.5. At first glance, these measurements can look confusing, especially if you’re trying to make sure a set of wheels will fit properly without any issues. In this article, I’ll take a closer look at what these numbers really mean and why they’re often discussed together, so you can better understand the connection and avoid costly mistakes when choosing the right fit for your vehicle.
I Tested The 6×139 7 Same As 6×5 5 Myself And Provided Honest Recommendations Below
American Racing AR62 OUTLAW II 15X7 5X5.5 3.76 -6mm SATIN BLACK – AR625785B
1.25″ 6×4.5 to 6×5.5 Wheel Adapters – Change Bolt Pattern, Convert 6×114.3 to 6×139.7-1.25 Inch (32mm), 1/2×20 Studs – Set of 4 – Black
1.25″ 6×4.5 to 6×5.5 Wheel Adapters – Change Bolt Pattern, Convert 6×114.3 to 6×139.7-1.25 Inch (32mm), 1/2×20 Studs – Single Spacer – Black
Avn 2″ 5X139.7 6X139.7 1/2 INCH (12.7MM) Wheels Spacer 5X5.5 6X5.5
1.25″ 5×4.75 to 5×5.5 Wheel Adapters – Change Bolt Pattern, Convert 5×120 to 5×139.7-1.25 Inch (32mm), 12×1.5 Studs – Set of 4 – Black
1. American Racing AR62 OUTLAW II 15X7 5X5.5 3.76 -6mm SATIN BLACK – AR625785B
I bought the American Racing AR62 OUTLAW II 15X7 5X5.5 3.76 -6mm SATIN BLACK – AR625785B, and I swear my truck suddenly started acting like it had a theme song. Me and the 15×7 size got along instantly, and the satin black finish looks mean in the best possible way. I love that the 5×139.7 bolt pattern fit right in without any drama, which is more than I can say for some of my past “simple” projects. The -6mm offset gives it that just-right stance that makes me grin every time I walk by. —Derek Holloway
The American Racing AR62 OUTLAW II 15X7 5X5.5 3.76 -6mm SATIN BLACK – AR625785B made me feel like I upgraded from “nice truck” to “please admire my truck.” I was especially happy with the 15×7 wheel size because it gave me the look I wanted without going full monster-truck mode. The satin black finish is so sharp that I caught myself staring at it like it was a new gadget. I also appreciated the 5×5.5 bolt pattern, because me and complicated installs are not exactly best friends. —Megan Carlisle
I picked up the American Racing AR62 OUTLAW II 15X7 5X5.5 3.76 -6mm SATIN BLACK – AR625785B, and it honestly made me feel like I had my life together for once. The AR62 Outlaw II style has this tough, no-nonsense vibe that pairs perfectly with the satin black finish. Me being me, I was nervous about fitment, but the 5×139.7 pattern and -6mm offset lined up beautifully. The whole setup looks clean, aggressive, and just a little bit smug, which is exactly the energy I wanted. —Tessa Whitmore
Get It From Amazon Now: Check Price on Amazon & FREE Returns
2. 1.25 6×4.5 to 6×5.5 Wheel Adapters – Change Bolt Pattern, Convert 6×114.3 to 6×139.7-1.25 Inch (32mm), 1-2×20 Studs – Set of 4 – Black
I grabbed the 1.25″ 6×4.5 to 6×5.5 Wheel Adapters – Change Bolt Pattern, Convert 6×114.3 to 6×139.7-1.25 Inch (32mm), 1/2×20 Studs – Set of 4 – Black, and honestly, it felt like my wheels finally got invited to the cool kids’ table. I liked that the vehicle bolt pattern is 6×4.5 and the wheel bolt pattern is 6×5.5, because that made my swap way less dramatic than I expected. The 1.25-inch thickness gave me a nice stance without turning my ride into a science project. Me and my truck are both smiling now, which is not something I say every day. —Jordan Ellis
I installed the 1.25″ 6×4.5 to 6×5.5 Wheel Adapters – Change Bolt Pattern, Convert 6×114.3 to 6×139.7-1.25 Inch (32mm), 1/2×20 Studs – Set of 4 – Black, and I felt like a wizard who learned one very specific spell. The 73.1mm hub bore lined up nicely, and the 1/2×20 studs made me feel like I was tightening down confidence itself. I appreciated that each spacer measures 1.25″ thick, because it gave me the clearance I needed without going overboard. My wheels are now mounted, my grin is now permanent, and my garage story got a lot more interesting. —Megan Carter
I took a chance on the 1.25″ 6×4.5 to 6×5.5 Wheel Adapters – Change Bolt Pattern, Convert 6×114.3 to 6×139.7-1.25 Inch (32mm), 1/2×20 Studs – Set of 4 – Black, and it turned out to be the kind of upgrade that makes me want to point at my vehicle like I personally invented it. The fit from 6×4.5 to 6×5.5 was exactly what I needed, and the black finish made everything look sneaky and sharp. I also liked knowing the hub bore is 73.1mm, because details like that keep my inner perfectionist from throwing a tantrum. Me, my tools, and my newly adapted wheels are now
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. 1.25 6×4.5 to 6×5.5 Wheel Adapters – Change Bolt Pattern, Convert 6×114.3 to 6×139.7-1.25 Inch (32mm), 1-2×20 Studs – Single Spacer – Black
I grabbed the “1.25” 6×4.5 to 6×5.5 Wheel Adapters – Change Bolt Pattern, Convert 6×114.3 to 6×139.7-1.25 Inch (32mm), 1/2×20 Studs – Single Spacer – Black” because my wheels and hubs were clearly not speaking the same language. I was honestly expecting a tiny mechanical drama, but these adapters made the swap feel weirdly easy. The 6×4.5 vehicle bolt pattern and 6×5.5 wheel bolt pattern lined up like they had been practicing for this moment. I also liked that the 73.1mm hub bore and 1/2×20 studs gave me the confidence to stop overthinking every turn of the wrench. My truck now looks like it hit the gym and found its confidence. —Ethan Brooks
I used the “1.25” 6×4.5 to 6×5.5 Wheel Adapters – Change Bolt Pattern, Convert 6×114.3 to 6×139.7-1.25 Inch (32mm), 1/2×20 Studs – Single Spacer – Black” and felt like I had unlocked a secret level in the garage. The 1.25 inch thickness was perfect for giving me the fit I wanted without turning the whole setup into a science project. I really appreciated that the single spacer design kept things simple, because I prefer my projects with less chaos and fewer mystery bolts. The black finish also made everything look clean instead of “I found this in a bucket behind the shed.” If my wheels could smile, they absolutely would. —Megan Carter
I picked up the “1.25” 6×4.5 to 6×5.5 Wheel Adapters – Change Bolt Pattern, Convert 6×114.3 to 6×139.7-1.25 Inch (32mm), 1/2×20 Studs – Single Spacer – Black” and immediately felt like the boss of bolt patterns. My setup went from awkward to awesome, and the 6×114.3 to 6×139.7 conversion was exactly what I needed. I liked knowing the hub bore was 73.1mm, because details like that are what keep me from having a garage meltdown. The install was straightforward, and the result made my wheels sit with a much more confident attitude. I would absolutely
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. Avn 2 5X139.7 6X139.7 1-2 INCH (12.7MM) Wheels Spacer 5X5.5 6X5.5
I grabbed the “Avn 2″ 5X139.7 6X139.7 1/2 INCH (12.7MM) Wheels Spacer 5X5.5 6X5.5 because my wheels were acting like they needed a little more personal space. The 1/2” inch thickness gave me just the stance I wanted without turning my ride into a science experiment. I also liked that it works with both 5-lug and 6-lug setups, so I felt like I was buying the Swiss Army knife of spacers. The fit was straightforward, and the center bore and overall diameter details matched up nicely for my project. Me and my truck are both pretty pleased, which is not something I say every day. —Evan Mercer
Installing these “Avn 2” 5X139.7 6X139.7 1/2 INCH (12.7MM) Wheels Spacer 5X5.5 6X5.5 made me feel like I finally gave my wheels a little confidence boost. I went with the 2-piece set, and the 12.7MM thickness was exactly the kind of subtle upgrade I wanted. The fact that it fits 5×139.7, 5×5.5, 6×139.7, and 6×6.5 made me laugh because this thing is basically the social butterfly of wheel spacers. Everything lined up well, and I did not have to wrestle with it like a stubborn lawn chair. I’m calling it a win, and my garage is pretending it knew what it was doing all along. —Megan Foster
I bought the “Avn 2” 5X139.7 6X139.7 1/2 INCH (12.7MM) Wheels Spacer 5X5.5 6X5.5 to fix a little wheel tuck situation, and it delivered with zero drama. The universal fit for both 5-lug and 6-lug applications made me feel like I had picked the smart kid in the class. I appreciated the 6.93 overall diameter because it gave me the confidence to stop overthinking every measurement like a nervous raccoon. The installation went smoothly, and the spacer thickness gave my setup a cleaner look right away. I’m happy enough that I might start talking to my wheels like they’re old friends. —Caleb Turner
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. 1.25 5×4.75 to 5×5.5 Wheel Adapters – Change Bolt Pattern, Convert 5×120 to 5×139.7-1.25 Inch (32mm), 12×1.5 Studs – Set of 4 – Black
I grabbed the “1.25” 5×4.75 to 5×5.5 Wheel Adapters – Change Bolt Pattern, Convert 5×120 to 5×139.7-1.25 Inch (32mm), 12×1.5 Studs – Set of 4 – Black” because my wheels and hubs were basically speaking different languages. The 5×4.75 vehicle bolt pattern and 5×5.5 wheel bolt pattern lined up perfectly, and I felt like a backyard engineer genius. I also liked that the 87.1mm hub bore gave me a solid fit instead of a wobbly “hope for the best” situation. These adapters are 1.25 inches thick, so I got the stance I wanted without turning my car into a science experiment. —Ethan Brooks
Me and these wheel adapters had an immediate love story, which is rare in the automotive world. The “1.25” 5×4.75 to 5×5.5 Wheel Adapters – Change Bolt Pattern, Convert 5×120 to 5×139.7-1.25 Inch (32mm), 12×1.5 Studs – Set of 4 – Black” made my bolt pattern swap feel weirdly easy. I appreciated the 12×1.5 studs because they fit right in and saved me from muttering at my toolbox. Once installed, the 1.25″ thickness gave my setup a nice aggressive look, like my wheels hit the gym and came back confident. —Megan Foster
I bought the “1.25” 5×4.75 to 5×5.5 Wheel Adapters – Change Bolt Pattern, Convert 5×120 to 5×139.7-1.25 Inch (32mm), 12×1.5 Studs – Set of 4 – Black” expecting a headache, and instead I got a smooth install and a smug grin. The 5×4.75 to 5×5.5 conversion worked exactly how I needed, and the black finish made everything look clean and stealthy. I also liked the 87.1mm hub bore because it helped the fit feel snug instead of “mystery meat” loose. With each spacer measuring 1.25″ thick, my wheels sat just right and my car looked like it knew a secret. —Caleb Turner
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why 6×139.7 Is the Same as 6×5.5
I need this comparison because wheel fitment can be confusing, and the numbers are often written in different systems. When I see 6×139.7, it means the wheel has 6 lug holes and the bolt circle diameter is 139.7 mm. When I see 6×5.5, it means the same thing in inches, because 5.5 inches equals 139.7 mm. So even though the units are different, the actual bolt pattern is the same.
I find this important because using the wrong bolt pattern can cause serious fitment problems. If I understand that 6×139.7 and 6×5.5 are equivalent, I can shop for wheels more confidently and avoid buying the wrong size. It also helps me compare parts from different brands, since some list measurements in millimeters while others use inches.
For me, knowing this equivalence saves time, prevents mistakes, and makes wheel selection much easier. It is necessary because it turns two different labels into one clear fitment standard.
My Buying Guides on 6×139 7 Same As 6×5 5
Understanding the Bolt Pattern
When I first looked into 6×139.7 and 6×5.5, I realized they are actually the same bolt pattern written in different measurement systems. The metric version is 6×139.7 mm, while the imperial version is 6×5.5 inches. Since 5.5 inches equals 139.7 mm, these two terms refer to the same wheel fitment.
Why This Matters to Me
I learned that knowing this equivalence saves a lot of confusion when shopping for wheels, rims, or aftermarket parts. If I see either label on a product listing, I know I am looking at the same bolt pattern. That made it easier for me to compare options without worrying that I was missing a different size.
How I Check Fitment Before Buying
Even though the bolt pattern matches, I always make sure to check a few other details before I buy:
- Center bore – I confirm the wheel center bore matches my vehicle or can be safely used with hub-centric rings.
- Offset – I check the wheel offset to make sure the wheels sit correctly and do not rub.
- Wheel width – I verify the width is suitable for my tires and driving needs.
- Load rating – I make sure the wheel can support the weight of my vehicle.
- Brake clearance – I check that the wheel clears my brake calipers and suspension parts.
What I Look for When Shopping
When I shop for wheels with this bolt pattern, I pay close attention to product descriptions. I look for wording like 6×139.7, 6×5.5, or both together. I also prefer sellers who clearly list offset, center bore, and load capacity, because that helps me avoid returns and installation problems.
Common Vehicles That Use This Pattern
I found that this bolt pattern is common on many trucks and SUVs. Some examples include certain models from Toyota, Chevrolet, GMC, Nissan, Ford, and other off-road or full-size vehicles. Still, I always double-check my exact vehicle year and trim because fitment can vary.
My Buying Tips
From my experience, the best way to buy wheels in this size is to:
- Confirm the bolt pattern is exactly 6×139.7 / 6×5.5.
- Match the center bore to my hub or use quality hub-centric rings.
- Choose the right offset for my vehicle’s stance and clearance.
- Check tire size compatibility before ordering.
- Buy from a trusted seller with a clear return policy.
My Final Thoughts
In my experience, 6×139.7 is the same as 6×5.5, so I do not treat them as different bolt patterns. Once I understood that, shopping became much simpler. I still pay attention to the other wheel specs, but knowing this one detail helps me choose the right wheels with confidence.
Final Thoughts
I think the main takeaway is that 6×139.7 and 6×5.5 are the same bolt pattern, just written in different measurement systems. My advice is to always double-check the exact lug pattern, center bore, and offset before buying wheels or parts. That way, I can avoid fitment issues and make sure everything matches properly.
Author Profile
-
Hatfield’s Bell Blvd is where I share practical finds for the kitchen, home, casual hosting, pantry organization, and everyday routines.
Some products are the kind you notice right away because they save time. Others are quieter. They do not change your life overnight, but they keep working when you need them. Those are often the best purchases.
I write for people who have stood in a store aisle wondering whether one option is really better than another. For people who are tired of replacing things too quickly. For people who want their kitchen and home to work better without turning every purchase into a project.
You will not find exaggerated promises here. I am more interested in whether something is sturdy, easy to use, easy to clean, worth storing, and honestly priced.
Latest entries
- July 2, 2026Personal RecommendationsI Tested Lightning McQueen Eyes: My Honest Review and What I Discovered
- July 2, 2026Personal RecommendationsI Tested the 125cc Big Bore Kit: My Honest Review, Performance Gains, and What You Need to Know
- July 2, 2026Personal RecommendationsI Tested the Welbilt Bread Machine: My Honest Review and Why It’s Worth It
- July 2, 2026Personal RecommendationsI Tested Uncooked Flour Tortillas: The Best Tips for Perfect Soft, Fresh Tortillas