Product Description
6-Piece Polished Stainless Pillar Trim for 2017-2019 Buick LaCrosse Sedans (PP57521)
PP57521 is the middle kit in QAA's three-kit pillar lineup for the Buick LaCrosse 4-door sedan, listed for 2017, 2018, and 2019. Six pieces of polished 304 stainless steel cover more of the pillar area than the four-piece kit, without the front triangles that come only with the eight-piece set.
How the LaCrosse kits compare
QAA catalogs PP57520 with four pieces, this kit with six, and PP57522 with eight. The eight-piece kit is the only one with a coverage note, and that note says it includes the front triangles. For the four- and six-piece kits, the catalog does not identify which post each piece fits. The listing photos make the differences clear. Six pieces is a balanced option: more brightness along the window line than the base kit, with fewer parts to align than the largest set.
A brief explanation of pillars
Pillars are the vertical supports between and beside the side windows. Pillar trim is a thin cosmetic cover that sits over them. On the LaCrosse, covering them in polished steel outlines each window and gives the long side profile a more finished, upscale appearance. Nothing structural changes; the original pillars remain underneath.
Material and build
QAA makes all six pieces in the USA from 26-gauge 304 stainless steel and polishes them to a mirror shine. Because the brightness is part of the solid steel, there is no plating involved, and every piece matches.
Install
The LaCrosse kit's six pieces fasten to the pillars as they stand with 3M automotive-grade acrylic foam tape. No disassembly. QAA says the tape will last a lifetime on the sedan without damaging its surface.
The steps are simple but worth doing carefully. Wash and dry the pillars thoroughly. Wipe them down so the tape meets clean paint. Lay out the six pieces and dry-fit each one. Peel and press one LaCrosse piece at a time, checking each reveal before moving on. The Installation tab gives the full order.
Fitment
This kit is listed for the Buick LaCrosse 4-door sedan from 2017 to 2019. The Fitment tab shows the application exactly as cataloged. QAA does not list other body styles for it.
Is six the right number?
If you want the front triangles covered, step up to PP57522. If you prefer the lightest touch, PP57520 has four pieces. For a generous accent on the main pillars, this six-piece kit hits the middle ground. Each kit is a complete set, so choose the coverage you want from the start.
Specs and contact
Part number PP57521 carries UPC 691821731213, which you will find on the Specs tab with the material and piece count. Questions? Call Quality Automotive Trims at 877-752-3811.
One more thought on appearance. A dark LaCrosse shows polished pillars with strong contrast, and the bright frame is visible from across a lot. On lighter paint the steel reads as a softer, factory-style accent. Either way, six pieces gives the window line enough coverage to look deliberate and complete.
PP57521 specifications
| Brand | QAA |
|---|---|
| Part number (MPN) | PP57521 |
| UPC | 691821731213 |
| Part type | Pillar Post Trim |
| Pieces in kit | 6 |
| 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 | 2017-2019 Buick LaCrosse |
Fitment: PP57521
| Vehicle | Years | Body style |
|---|---|---|
| Buick LaCrosse | 2017-2019 | 4-door, Sedan |
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 2017-2019 Buick LaCrosse
Check the body style on each listing; some kits are specific to one body style.
Installation tips: Pillar Post Trim
- Unpack all 6 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: PP57521 Pillar Post Trim
Where does PP57521 fit among the LaCrosse kits?
It is the 6-piece kit, between the 4-piece PP57520 and the 8-piece PP57522.
Does it include the front triangles?
No. QAA lists the front triangles only with PP57522.
Which LaCrosse does it fit?
The 4-door Buick LaCrosse sedan, 2017 through 2019.
How does it attach?
3M automotive-grade acrylic foam tape, directly over the existing surface. QAA states the tape will hold for a lifetime without damaging the vehicle.
What is it made of?
Polished 26-gauge 304 stainless steel, made in the USA.
Who can help me choose?
Quality Automotive Trims at 877-752-3811.
