Overview
The Bushwacker Diamondback Ultimate BedRail Cap, part number 49508, is a Diamond Plate style bed rail protector for 1988–2000 Chevrolet C and K pickups and GMC C and K Sierra trucks. It guards the top edge of the bed against dents, dings and scratches, with an OEM matte black finish and a DiamondBack textured surface.
The cap is molded from Dura-Flex 2000 TPO plastic, which is 100% UV protected to prevent chalking. Its thick walls absorb impact and resist warping. It is engineered for the bed rail it fits, giving a close fit and smoothly finished edges.
Key features
- Diamond Plate style with a DiamondBack textured finish
- Dura-Flex 2000 TPO plastic that is 100% UV protected
- Thick walls to absorb impact and resist warping
- Doubly secure 3M adhesive plus a screw-clip system
- No drilling needed for installation
- Made in the USA with a Limited Lifetime Warranty
Identifying the right cap
Older C and K trucks have bed rails that differ in profile from later models, so a cap is only useful when it matches the body style it was made for. Check the bed and rail shape against the vehicle before ordering. A loose or mismatched fit leaves gaps where dirt and moisture can collect under the adhesive edge.
Diamondback caps protect the top edge from scuffs and tailgate contact. On an older truck, the rail finish may already be faded or rusted, so cleaning and inspecting the surface matters more than the cap alone. Remove loose rust and flaking paint before bonding, since the adhesive can only hold to sound material.
- Compare the rail shape with the cap before buying
- Clean and dry the rail surface thoroughly
- Treat surface rust before the adhesive goes on
- Check the clips and edges after rough use
Specifications
| Brand | Bushwacker |
|---|---|
| Part number | 49508 |
| UPC | 90689113535 |
| Product type | Ultimate BedRail Cap (bed rail protector) |
| Material | Plastic (Dura-Flex 2000 TPO) |
| Style | Diamond Plate |
| Finish | OEM matte black, DiamondBack textured |
| Mounting | 3M adhesive and screw-clip system, no drilling |
| Fitment type | Direct Fit |
| Made in | USA |
| Warranty | Limited Lifetime Warranty |
Vehicle fitment
The 49508 fits 1988–1999 Chevrolet C1500 (454 SS, Base, Cheyenne, LS, Scottsdale and Silverado), 1989–2000 Chevrolet C2500 (Base, Cheyenne, LS, Scottsdale and Silverado), 1989–1999 Chevrolet K1500 (including Sport) and 1989–2000 Chevrolet K2500. It also fits matching C and K models from 1988–2000 GMC Sierra trucks, with trims such as SL, SLE, SLT and SLX.
The list stops at model year 2000, so 2001 and later models in the 49501 range are not covered by this part. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The cap is adhered and clipped rather than bolted, so the bed rail is not drilled. Older bed rails often carry dirt and wax, so clean the surface thoroughly before the adhesive side is pressed down.
What’s included
The cap is mounted with 3M adhesive and a screw-clip system. Compare the parts in the box with your installation steps before starting.
