GMC 3500 HD Bed Cover - Undercover - LUX - GPA (WA457B) - `15-`19
GMC 3500 HD Bed Cover - Undercover - LUX - GPA (WA457B) - `15-`19

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GMC 3500 HD Bed Cover – UnderCover LUX – GPA (WA457B) – 2015–2019. A factory-painted, one-piece hard tonneau for the 6'6" standard bed that adds protection and a clean, low-profile finish.
UnderCover LUX is built from a lightweight, durable composite for easy installation and quick, no-tool removal when you need full bed access. Painted to match GM code GPA (WA457B), it features a full-perimeter seal to help block rain and dust, weatherproof twist locks to secure your cargo, and an integrated LED cargo light for nighttime visibility. Styled ribs, soft corners, contour edges, and a subtle spoiler complement Sierra HD body lines.
Features
- Factory painted to match GPA (WA457B)
- Low-profile, contoured one-piece design
- Full perimeter seal for element protection
- Weatherproof twist locks
- Integrated LED cargo light
- Quick, no-tool removal
Questions or fitment checks for your Sierra 3500 HD 6'6" bed? Call us—our Austin, TX and Los Angeles area teams can help, and we offer professional installation and customization at both locations: TX 512-982-9393 (TX), CA 562-981-6800 (CA).
Buying multiple items? Contact us for potential shipping discounts. We install on premises at both locations.
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