Product Description
Sierra 1500 Xtra Cab Four-Door Long Bed (1999-2006), No Factory Flares, Upper Rocker Trim, 12 Pieces, 5.5" (TH39289)
TH39289 rounds out the 1999-2006 GMC Sierra 1500 group as the four-door Xtra Cab long bed kit. Tag: "4-door, Pickup Truck, Xtra Cab, Long Bed, w/o Factory Flares, Sierra 1500." Twelve pieces of polished stainless steel, an Upper Kit 5.5" wide, hanging from the bottom of the molding.
Checklist
- Sierra 1500, 1999-2006.
- Xtra Cab with four doors.
- Long bed.
- No factory flares.
- Molding on the sides, with at least 5.5" of paint below it.
Every line true: this kit. Short bed instead: TH39287. Three doors: TH39286 (long bed) or TH39285 (short bed). Regular cab: TH39282 or TH39281.
Short and long bed twins
The four-door short bed kit has the same twelve pieces and width. What the bed tag changes isn't explained in the record, so stick with the kit for your bed and call 877-752-3811 if you want to know more.
About the steel
The twelve Sierra 1500 Xtra Cab long bed pieces are polished 26 gauge 304 stainless steel, made in the USA, attached below the molding with 3M automotive-grade acrylic foam tape over the existing surface. QAA states the tape will hold for a lifetime without damage.
Where the band lands
Top edge: the underside of the molding. Bottom edge: five and a half inches lower. Nothing in the record mentions the door bottom, so the paint below the band stays visible.
Twelve pieces to place
No map in the data. Use the product photos, line the pieces up in order, and label the liners front to rear.
Factory flares
Not on this record. Trucks with them should call before ordering.
Molding
Press along it everywhere the steel will meet it, and repair any loose sections. A wavy molding means a wavy top line.
Cleaning
Wash under the molding, dry, and alcohol-wipe. Repair chalky or peeling paint inside the band.
The install itself
Painter's tape holds each piece for a test. Then peel back a few inches, press that end, and move along steadily. Finish with firm pressure over each piece.
Doors
Open each Sierra door once its piece is on.
Help on the phone
If your door count, bed or flares don't line up neatly, send a side photo with your call and we'll sort it out.
Care
The Sierra waits a day for its first wash.
Checking the layout
Measure each fitted position and keep the rest consistent.
Gear and timing
Tape measure, painter's tape, marker, car soap, isopropyl alcohol and microfiber cloths. A mild, dry day with the truck in the shade gives the tape its best start; a cold morning is worth waiting out.
Test the whole run first
With every piece of a run taped in position, step back several paces. The line should run true from front to rear along the molding. Fix anything that drifts before a single liner comes off.
Any question about the four-door long bed fit: call 877-752-3811 and quote SKU TH39289.
Sierra long-bed Xtra Cab kit TH39289, UPC 691821466627: 877-752-3811, Quality Automotive Trims.
TH39289 specifications
| Brand | QAA |
|---|---|
| Part number (MPN) | TH39289 |
| UPC | 691821466627 |
| Part type | Rocker Panel Trim, Upper Kit |
| Pieces in kit | 12 |
| Material | Polished 26-gauge 304 stainless steel |
| Finish | Polished to a mirror shine |
| Width | 5.5" |
| Coverage / notes | Spans from the bottom of the molding DOWN to the specified width |
| Mounting | 3M automotive-grade acrylic foam tape; installs directly over the existing surface |
| Origin | Made in the USA |
| Fits | 1999-2006 GMC Sierra 1500 |
Fitment: TH39289
| Vehicle | Years | Body style |
|---|---|---|
| GMC Sierra 1500 | 1999-2006 | 4-door, Pickup Truck, Xtra Cab, Long Bed, w/o Factory Flares, Sierra 1500 |
Check your vehicle against every column here: year range, model, and body style all have to match. Questions? Call Quality Automotive Trims at 877-752-3811 with your year, make, model, and body style.
Other QAA trim cataloged for the 1999-2006 GMC Sierra 1500
- TH39281: 10-piece Rocker Panel Trim, Upper Kit
- TH39282: 10-piece Rocker Panel Trim, Upper Kit
- TH39285: 11-piece Rocker Panel Trim, Upper Kit
- TH39286: 11-piece Rocker Panel Trim, Upper Kit
- TH39287: 12-piece Rocker Panel Trim, Upper Kit
Check the body style on each listing; some kits are specific to one body style.
Installation tips: Rocker Panel Trim, Upper Kit
- Unpack all 12 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: TH39289 Rocker Panel Trim, Upper Kit
Which Sierra is TH39289 for?
1999-2006 GMC Sierra 1500 Xtra Cab, 4-door, long bed, without factory flares.
My truck has the short bed.
The four-door short bed kit is TH39287.
How far down does it reach?
5.5" below the molding.
How many pieces?
Twelve.
