Product Description
Buick Regal Sportback and GS 8-Piece Stainless Pillar Trim, 2018-2020 (PP58577)
For the Buick Regal Sportback and Sportback GS, PP58577 is the largest pillar post kit QAA catalogs. Its eight pieces of polished stainless steel are listed for 4-door Regals from 2018 through 2020, and QAA notes that it does not fit the Regal TourX.
The fullest Sportback kit
Sportback owners have three options from QAA: PP58575 with four pieces, PP58576 with six, and this eight-piece set. The catalog lists the piece counts but no coverage notes, so it does not say which pillars each kit covers or what the further pieces in this set cover. What is clear is that eight pieces is the most coverage available for the Sportback and GS. The product photos show the layout.
Not for the TourX
The Regal TourX wagon has its own eight-piece kit, PP58579. The wagon is a different body from the Sportback, and QAA lists the two separately. Check which body you have before ordering. If the badge on the tailgate says TourX, check the TourX listings instead.
Why eight pieces
The Sportback and GS are the bodies this kit is listed for, and the pillars run along their side glass. A full set of polished pillar covers emphasizes that line and gives the car a more finished, custom look, especially on darker paint where the contrast is strongest.
Material
QAA makes all eight covers in the USA from 26-gauge 304 stainless steel and polishes them to a mirror finish. Solid stainless means the shine will not peel, and the pieces match.
Installation
On the Regal Sportback, the eight pillar pieces go straight over the existing surface with 3M automotive-grade acrylic foam tape and no disassembly. According to QAA, that tape will hold for a lifetime without causing damage.
With eight pieces, organization pays off. Sort the eight Regal pieces by position. Clean, dry, and de-wax every pillar. Dry-fit before any liner comes off. Install one piece at a time and check the line from a few steps back after each. The Installation tab gives the full sequence.
Getting a good bond
Choose a mild day and a shaded spot. Tape seats best on a clean panel at a comfortable temperature, and firm pressure along each edge finishes the job.
On a GS in particular, where the sportier trim already draws attention, a full set of polished pillars gives contrast that matches the car's character. On a standard Sportback it gives a more premium look. Either way, the installation is the same: clean surfaces, careful alignment, and firm pressure.
Fitment
Listed for the Buick Regal 4-door, 2018 through 2020, Regal Sportback and Regal Sportback GS. Not listed for the TourX. The Fitment tab shows the entry as QAA records it.
Specs and help
Part number PP58577 has UPC 691821722310. The Specs tab lists material, gauge, and piece count. Call Quality Automotive Trims at 877-752-3811 for help choosing a Regal kit.
Since each Regal kit is a complete set, picking the largest up front avoids buying twice. A soft cloth afterward clears fingerprints.
PP58577 specifications
| Brand | QAA |
|---|---|
| Part number (MPN) | PP58577 |
| UPC | 691821722310 |
| Part type | Pillar Post Trim |
| Pieces in kit | 8 |
| Material | Polished 26-gauge 304 stainless steel |
| Finish | Polished to a mirror shine |
| Mounting | 3M automotive-grade acrylic foam tape; installs directly over the existing surface |
| Origin | Made in the USA |
| Fits | 2018-2020 Buick Regal |
Fitment: PP58577
| Vehicle | Years | Body style |
|---|---|---|
| Buick Regal | 2018-2020 | 4-door, Regal Sportback & Regal Sportback GS; Does not fit TourX |
Fitment is listed exactly as QAA catalogs it. Confirm the body style as well as the year and model. Questions? Call Quality Automotive Trims at 877-752-3811 with your year, make, model, and body style.
Other QAA trim cataloged for the 2018-2020 Buick Regal
- PP58575: 4-piece Pillar Post Trim
- PP58576: 6-piece Pillar Post Trim
- PP58578: 6-piece Pillar Post Trim
- PP58579: 8-piece Pillar Post Trim
Check the body style on each listing; some kits are specific to one body style.
Installation tips: Pillar Post Trim
- Unpack all 8 pieces and match each one to its position on the vehicle, using the product photos, before fitting any of them.
- Each piece mounts with 3M automotive-grade acrylic foam tape, so clean and dry the mounting surface first; the tape needs paint or trim free of dirt and wax.
- Align the piece and press it firmly into place directly over the existing surface, working along its full length so the tape bonds evenly.
- Fit one piece at a time and compare each with the product photos and the pieces already in place.
These are general tips. Follow any instructions packed with your kit if they differ.
FAQ: PP58577 Pillar Post Trim
Does PP58577 fit the Regal TourX?
No. It is listed for the Regal Sportback and Sportback GS. The TourX 8-piece kit is PP58579.
Which years fit?
Buick Regal 4-door, 2018 through 2020.
Is this the largest Sportback kit?
Yes, with 8 pieces. QAA also offers PP58575 (4 pieces) and PP58576 (6 pieces).
How is it installed?
With 3M automotive-grade acrylic foam tape directly over the existing surface. QAA states the tape will hold for a lifetime without causing damage to the vehicle.
What is it made of?
Polished 26-gauge 304 stainless steel, made in the USA.
Who do I call?
Quality Automotive Trims, 877-752-3811.
