Product Description
TH54251 Cadillac CTS 2014-2019 Below-the-Door Rocker Set, 1.5"-2.125", 4 Pieces
Four polished stainless steel pieces make up TH54251, a rocker set for the 2014-2019 Cadillac CTS sedan. They "Install below the door" and taper from 1.5" to 2.125".
Its own wheel well partner
One linked wheel well listing is written for this exact kit. WQ54251 says "Cut to fit with the Rocker kit TH54251 ON the Rocker sold separately." The other two don't fit that description. WQ54250 names the door kit and the ten-piece kit, and WQ54252 is "Full Length." So if you want polished wheel openings to go with this rocker set, WQ54251 is the listing the record points to.
Where this sits among the CTS kits
Under the doors there are two choices. This four-piece tapered set is the wider one. TH54253 is a pair of straight 1.25" strips. On the doors there's TH54250, eight pieces at 2.25"-3.5". TH54252 has ten pieces covering both zones at 5.25". The catalog doesn't say how the four relate beyond those tags.
Five-eighths of taper
The height changes by five-eighths of an inch along each piece. Which end is taller isn't stated, so hold one up with painter's tape and compare it with the photos.
Build and bond
The CTS kit is four tapered pieces of polished 26 gauge 304 stainless steel produced in the USA, each mounted below the doors with 3M automotive-grade acrylic foam tape over the existing surface. QAA states the tape will hold for a lifetime without damage.
Measure the rocker
Before buying, measure the height under your doors near the front and near the rear wheels, and set those figures beside 1.5" and 2.125". An aftermarket skirt, or damage there, is worth a photo to 877-752-3811.
Low-panel cleaning
Road grime builds up low on any car. Scrub the rocker with a soft brush and soapy water, rinse, let it dry fully, and finish with isopropyl alcohol.
Dry fit with the wheel well pieces
If WQ54251 is part of your order, tape its pieces up at the same time as the rocker pieces. That shows you how the cut-to-fit ends meet before anything is permanent.
Bond
Open each door to make sure its lower edge clears, then draw the liner out a little at a time and press behind it.
Pillar options
The CTS listings include standard pillar sets and "LONG VERSION" sets (PP54444, PP54445) that refer you to their images. Check which matches your car, and check each listing for its finish.
Reach us
Mirroring the taper
Once the first pieces are on, measure where each starts and ends relative to the door openings and the wheel openings. Use those numbers for the rest so every taper runs the same way.
Conditions
Install in shade on a mild, dry day, keep the car dry for a day afterward, and then wash with mild soap and a soft cloth.
Questions
Call 877-752-3811 with a photo of your CTS and we'll compare it with the two below-the-door kits.
The CTS listing is TH54251 with barcode UPC 691821374205, and the shop line is 877-752-3811.
TH54251 specifications
| Brand | QAA |
|---|---|
| Part number (MPN) | TH54251 |
| UPC | 691821374205 |
| Part type | Rocker Panel Trim, On the rocker |
| Pieces in kit | 4 |
| Material | Polished 26-gauge 304 stainless steel |
| Finish | Polished to a mirror shine |
| Width | 1.5" to 2.125" tapered |
| Coverage / notes | Installs below the door |
| Mounting | 3M automotive-grade acrylic foam tape; installs directly over the existing surface |
| Origin | Made in the USA |
| Fits | 2014-2019 Cadillac CTS |
Fitment: TH54251
| Vehicle | Years | Body style |
|---|---|---|
| Cadillac CTS | 2014-2019 | 4-door, Sedan |
Match the year, model, and body style in this table to your vehicle before ordering. Questions? Call Quality Automotive Trims at 877-752-3811 with your year, make, model, and body style.
Other QAA trim cataloged for the 2014-2019 Cadillac CTS
- AT54250: 4-piece Body Side Molding Accent Trim
- GC54250: 1-piece Gas Door Cover Trim
- LB54250: 2-piece License Bar Extension Trim
- LP54250: 1-piece License Plate Bezel
- PP54250: 4-piece Pillar Post Trim
- PP54251: 6-piece Pillar Post Trim
- PP54444: 4-piece Pillar Post Trim
- PP54445: 6-piece Pillar Post Trim
Check the body style on each listing; some kits are specific to one body style.
Installation tips: Rocker Panel Trim, On the rocker
- Unpack all 4 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: TH54251 Rocker Panel Trim, On the rocker
Where does TH54251 go?
Below the door, on the rocker.
Which wheel well kit matches it?
WQ54251 is noted "Cut to fit with the Rocker kit TH54251 ON the Rocker sold separately."
How wide is it?
It tapers from 1.5" to 2.125".
How many pieces?
Four.
