- Marine-grade stainless steel: 16-gauge stainless construction for strength and corrosion resistance.
- Tough finish: E-coat (electrostatic plating) under a two-stage textured black powder coat.
- Built for the Silverado / Sierra 2500/3500 HD: OVS True-Fit design for the 2020-2027 Chevy Silverado / GMC Sierra 2500/3500 HD 6.9 ft bed.
- 5-piece modular design: Ships and assembles in sections for easier handling and install.
- No-drill clamping system: Clamps to the bed rails with no drilling needed to mount the cap.
- Full wing doors: Gullwing side doors on high-pressure gas struts and heavy-duty hinges with nylock nuts give access to the whole bed from either side. Each door holds about 15 lb of mounted accessories.
- PRO or PRO+: The PRO has solid steel wing doors. The PRO+ has windowed wing doors (tempered glass with a sliding side window) and a built-in MOLLE panel.
- Locking latches: Keyed-alike lockable latches with weatherproof covers.
- Rear security cage: Stainless cage over the rear window.
- Roof rails: Integrated rails with a 19 mm T-slot. With the optional OVS crossbars the roof is rated 325 lb dynamic and 750 lb static, for rooftop tents, awnings, bikes and gear.
- 3rd brake light: Included, for visibility from behind.
- Ventilation: Fixed air vent on the cab-side panel helps reduce condensation and lets air escape when you close the doors.
- Weather sealing: 3M bulb seal, rear hatch seal and butyl tape for the bulkhead step-down.
Key Features
Specs & Fitment
FAQ
What's Included
| Fits | 2020-2027 Chevy Silverado / GMC Sierra 2500/3500 HD, 6.9 ft bed (not GM Carbon Pro beds) |
| Models | PRO – Solid Wing Doors (70100029), PRO+ – Windowed Wing Doors with built-in MOLLE panel (70200029) |
| Material | Marine-grade stainless steel, 16 gauge |
| Finish | E-coat plus two-stage textured black powder coat |
| Construction | 5-piece modular, OVS True-Fit |
| Mounting | No-drill clamps on the bed rails |
| Install time | 1-2 hours (per OVS) |
| Doors | Full wing doors, gas struts, heavy-duty hinges; about 15 lb accessory load per door |
| Glass | Automotive tempered safety glass; cab-side window fixed, no pass-through |
| Roof | Integrated rails, 19 mm T-slot; 325 lb dynamic / 750 lb static with OVS crossbars |
| Lighting | 3rd brake light included |
| Warranty | OVS limited lifetime structural, 5-year finish; glass not covered |
Fitment notes (from OVS)
- GM Carbon Pro (CarbonPro) beds are not compatible.
- Made for the 6.9 ft Silverado / Sierra 2500/3500 bed. Not offered for the 8 ft long bed.
- Factory spare-tire mounts (Ram/Chevy) or other accessories that interfere with the installation must be removed before installing.
- "No-drill" refers to the clamps on the bed rails. Some trucks need one small hole drilled to wire the 3rd brake light; see the OVS instructions.
- No truck bed is fully waterproof. The seals greatly reduce water and dust, but some water may still get in, most often around the tailgate.
- The cap cannot be opened or locked from inside the bed.
Installation instructions: OVS Expedition Cap Instructions (PDF) · Dimensions: OVS Expedition Dimensions (PDF)
Which Silverado / Sierra HD bed sizes does this truck cap fit?
It fits 2020-2027 Chevy Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD trucks with the 6.9 ft standard bed. OVS does not make this cap for the 8 ft long bed.
Will it fit a Sierra HD with the CarbonPro bed?
No. OVS says GM Carbon Pro (CarbonPro) beds are not compatible with the Expedition cap. It fits the standard 6.9 ft bed. Any factory spare-tire mount or accessory that interferes with the install must also be removed. If you are unsure which bed you have, contact us before ordering.
What is the difference between the PRO and PRO+?
The PRO has solid steel wing doors with no side windows. The PRO+ has windowed wing doors (tempered glass with a sliding side window) and a built-in MOLLE panel; because of that panel, OVS's add-on door and side-frame MOLLE panels do not fit the PRO+. Everything else is shared: front and rear glass windows, construction, finish, latches, rear security cage, roof rails, seals and the 3rd brake light. On this truck the PRO+ is $500 more.
Do I have to drill my Silverado or Sierra HD to install it?
No drilling is needed to mount the cap; it clamps to the bed rails. The included 3rd brake light has to be wired, and OVS notes some trucks need one small hole drilled for that wire. Follow the OVS installation instructions for your truck.
How long does installation take?
OVS rates the install at 1-2 hours. The cap is a 5-piece modular design that assembles on the truck.
Does it work with a tonneau cover or bed rail accessories?
OVS does not list tonneau cover or bed rail accessory compatibility. The cap clamps directly to the bed rails, and OVS says any accessories that interfere with the installation must be removed first. If you are unsure about a specific accessory, contact us before ordering.
How does the truck cap ship?
It is a large freight item that ships direct from Overland Vehicle Systems. The current lead time is shown with each model option.
OVS does not publish a formal packing list. Based on OVS's product information, the cap comes with:
- Expedition truck cap (5-piece modular shell) for the Silverado / Sierra 2500/3500 HD 6.9 ft bed
- No-drill bed rail clamps
- Integrated roof rails (19 mm T-slot)
- 3rd brake light
- 3M single-bulb seal for the bed rails and bulkhead
- Rear hatch bulb seal
- 2 pieces of butyl tape for the bulkhead step-down
- Rear window security cage
- Keyed-alike locking latches
Sold separately: crossbars, add-on MOLLE panels (these do not fit the PRO+, which has a built-in MOLLE panel) and LED lighting kits.
Installation
Installation guide for OVS Expedition Truck Cap for 2020-2027 Chevy Silverado / GMC Sierra 2500/3500 HD 6.9 ft Bed.