Shop Exact-Fit 2021 GMC Terrain Wheels & Custom Rims
Showing compatible wheels for the 2021 GMC Terrain matching 6x139.7 / 8x180 bolt pattern, 18, 20, 22, and 24 inch diameters, and 8"–10" widths from Black Rhino Hard Alloys, TSW, Hostile, KMC. Filter by rim size, width, or finish and build a complete wheel & tire package.
- Diameter
- 18, 20, 22, 24
- Width
- 8, 8.5, 9, 10
- Bolt pattern
- 6x139.7, 8x180, 5x120
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ATTACK 18X9 6X5.5 106 +0 G-SLV-MCH
ATTACK 18X9 6X5.5 106 +0 M-BLK
ATTACK 18X9 6X5.5 106 +18 G-SLV-MCH
ATTACK 18X9 6X5.5 106 +18 M-BLK
ATTACK 18X9 8X180 124 +0 G-SLV-MCH
ATTACK 18X9 8X180 124 +0 M-BLK
ATTACK 18X9 8X180 124 +18 G-SLV-MCH
ATTACK 18X9 8X180 124 +18 M-BLK
ATTACK 20X9 6X5.5 106 +1 G-SLV-MCH
ATTACK 20X9 6X5.5 106 +1 M-BLK
ATTACK 20X9 8X180 124 +1 G-SLV-MCH
ATTACK 20X9 8X180 124 +1 M-BLK
2021 GMC Terrain Wheel Fitment Specs: 18"–24" Rim Sizes, 8"–10" Widths & 6x139.7 PCD
Every aftermarket wheel shown above is pre-filtered for the 2021 GMC Terrain. By matching your 2021 GMC Terrain lug pattern (6x139.7, 8x180, 5x120), compatible rim diameters (18, 20, 22, and 24 inch), and 8", 8.5", 9", 10" widths against inventory from Black Rhino Hard Alloys, TSW, Hostile, KMC, XD, Niche 1PC, you can choose custom rims with confidence or build a complete 2021 GMC Terrain wheel and tire package.
| Specification | Verified Fitment Details |
|---|---|
| Vehicle & Year | 2021 GMC Terrain |
| Bolt Pattern (PCD) | 6x139.7, 8x180, 5x120 |
| Supported Diameters | 18", 20", 22", 24" |
| Supported Widths | 8", 8.5", 9", 10" |
| Center Bore | 78.1 mm, 124.1 mm |
| Compatible Brands | Black Rhino Hard Alloys, TSW, Hostile, KMC, XD, Niche 1PC |
2021 GMC Terrain Rim Sizes & Wheel Construction Guide
Popular wheel fitments include 18 inch wheels for 2021 GMC Terrain, 20 inch wheels for 2021 GMC Terrain, 22 inch wheels for 2021 GMC Terrain, 24 inch wheels for 2021 GMC Terrain matched to 8"–10" widths and 6x139.7 / 8x180 bolt patterns. Whether building a daily street setup or trail rig, always confirm truck load rating and wheel offset alongside lug count—off-road alloy, flow-formed, and forged wheels from Black Rhino Hard Alloys, TSW, Hostile, KMC, XD, Niche 1PC all fit safely when backspacing and load capacity match.
2021 GMC Terrain Wheel & Fitment FAQs
What is the exact wheel bolt pattern, hub bore, and lug specification for the 2021 GMC Terrain?
The 2021 GMC Terrain is engineered with a 6x139.7 / 8x180 / 5x120 bolt pattern and a 78.1 mm / 124.1 mm center bore and accommodates wheel diameters of 18"–24" with rim widths of 8"–10". Installing hub-centric wheels guarantees zero highway vibrations.
How do I verify aftermarket wheels clear the brakes on my 2021 GMC Terrain?
All 2021 GMC Terrain wheels listed on Shop Wheels Direct are verified against factory brake caliper profiles and the 6x139.7 / 8x180 / 5x120 bolt pattern across 18"–24" diameters and 8"–10" rim widths.
Can I install wider rims and aggressive off-road tires on the 2021 GMC Terrain?
Yes. For the 2021 GMC Terrain, wheels measuring 8"–10" wide in 18"–24" diameters with a 6x139.7 / 8x180 / 5x120 bolt pattern fit stock, leveled, or lifted suspensions cleanly without rubbing.
Which top wheel brands have guaranteed-fit rims for the 2021 GMC Terrain?
Shop Wheels Direct features guaranteed-fit wheels for the 2021 GMC Terrain from leading brands like Black Rhino Hard Alloys, TSW, Hostile, KMC, all precision-engineered for the 6x139.7 / 8x180 / 5x120 bolt pattern.