The 2018 Toyota Tacoma has a bolt pattern of 6x5.5 inches, but what does this actually mean? There are six bolts arranged in a circular pattern with a 5.5-inch diameter on each of your Tacoma wheels.

If you like to baby your 2018 Toyota Tacoma by switching up the wheels or fitting it with custom rims, you’ll need to know your truck’s bolt pattern to safely make these changes to the wheels.

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2018 Toyota Tacoma bolt pattern

The 6x5.5 bolt pattern—also called a

lug pattern

, has been standard fare on the Tacoma for many years, including the 2018 model year. Bolt patterns are deciphered in two measurements: the number of bolts x the diameter of the circle formation they’re arranged in.

You may also see the 2018 Tacoma bolt pattern listed as 6x139.7. Don’t worry, you’re not missing anything—this is simply the metric equivalent to the 6x5.5-inch measurement. 139.7 millimeters is equal to 5.5 inches.

The bolt pattern isn’t all that complex, but it’s not the only information you’ll need if you want to swap out your Tacoma’s wheels. Stud size, wheel offset, center bore measurement, and torque specifications are integral for making sure your wheels fit properly and don’t jeopardize the safety of your truck.

These are the 2018 Toyota Tacoma wheel specs you’ll need to know:

Factory wheel size: 16” to 18”

Stud size: M12x1.5

Offset: -25 to 35 mm

Center bore: 106.1 mm

Wheel tightening torque: 113 Nm

MORE:

Toyota Tacoma towing capacity

How to measure your 2018 Toyota Tacoma’s bolt pattern

If you’re the hands-on learning type, there’s even a way to measure the 2018 Tacoma’s bolt pattern manually with a tape measure or a ruler.

Measure from the center of one lug hole to the center of the bolt directly opposite. This measurement is the diameter—which makes up the second number in a bolt pattern. Count up the number of bolts, pair it with the diameter measurement, and voila, you’ve got your Tacoma’s bolt pattern.

MORE:

The best Toyota Tacoma aftermarket parts

How to optimize your Toyota’s insurance coverage

Maybe you’re interested in snazzing up your truck with some off-road wheels or are simply trying to learn more about bolt patterns in general. Either way, your Tacoma needs a good

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FAQ

What is the bolt pattern on a 2018 Toyota Tacoma?

The bolt pattern on the 2018 Toyota Tacoma is 6x5.5 inches. That means it has six lug holes in the shape of a circle that measures 5.5 inches in diameter.

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