2018 GMC Acadia wheels — 20x8, 6 spoke, opt RTG price snapshot
- Low
- $75
- Average
- $149
- High
- $320
Year & trim-specific price guide
Used 2018 GMC Acadia Wheels — 20x8, 6 spoke, opt RTG prices
Trim-specific pricing for the 20x8, 6 spoke, opt RTG variant of the 2018 GMC Acadia wheels, built from 48 real salvage yard listings with condition grade detail.
SKWritten bySaurabh Kumar · Co-Founder & CTO
SK
Saurabh Kumar
Co-Founder & CTO, Part Price Guide
Built the pricing pipeline that collects and normalizes used OEM part listings from salvage yards and online marketplaces across the US.
ASReviewed byAmbika Sharma · Co-Founder & COO
Last updatedSep 11, 2026AS
Ambika Sharma
Co-Founder & COO, Part Price Guide
12 years of project management and technical operations experience. Reviews price guides for sample size, fitment accuracy, and data freshness.
Price summary
A used 2018 GMC Acadia wheels (20x8, 6 spoke, opt RTG) costs $75 to $320, with a median asking price of $121. Based on 48 priced salvage yard listings across the US, updated Sep 11, 2026. Prices exclude shipping, core charges, and installation.
USD
Trim-specific context
How does the 20x8, 6 spoke, opt RTG compare?
This pricing covers the 20x8, 6 spoke, opt RTG variant of the 2018 GMC Acadia wheels, based on 48 priced listings. Its $121 median is 3% below the 2018 GMC Acadia wheels overall median of $125.
There are 8 other wheels variants available for the 2018 GMC Acadia.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Same trim, other years
20x8, 6 spoke, opt RTG in other model years
Same year, other trims
What other 2018 GMC Acadia wheels variants are available?
18x7-1/2, opt RSZ
50 listings$110$65 – $32718x4-1/2 (opt RTI)
48 listings$84$75 – $31617x7-1/2 (opt RSC)
46 listings$93$75 – $22720x8, 6 spoke, opt RTU
40 listings$171$99 – $25020x8, 12 spoke (opt SSZ)
39 listings$160$65 – $87920x8, 6 spoke, opt SKL
39 listings$155$135 – $35718x7-1/2, opt RQH
38 listings$100$71 – $19618x7-1/2, opt 5PJ
37 listings$125$40 – $225Back to full guide
2018 GMC Acadia wheels — all trims
Common questions
2018 GMC Acadia wheels (20x8, 6 spoke, opt RTG) FAQ
How much is a used 2018 GMC Acadia wheels (20x8, 6 spoke, opt RTG)?
Based on 48 priced salvage-yard listings, a used 2018 GMC Acadia wheels in the 20x8, 6 spoke, opt RTG variant lists between $75 and $320, with a median asking price of $121.
Which years use the 20x8, 6 spoke, opt RTG wheels?
The 20x8, 6 spoke, opt RTG variant appears in model years 2018, 2019. Prices and availability may differ by year.