Daposhac Fuel Door for Chevy Silverado & GMC Sierra 2020–2025 8-ft Bed Gas — ABS, Metal Spring

Daposhac 84749791 fuel door is a direct-fit replacement fuel filler pipe housing for 2020–2025 Chevrolet Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD 8-foot long bed gas models.

This replacement fuel door assembly restores the look and function of your truck’s fuel intake area without modification. Built from durable ABS plastic with a reinforced metal spring hinge, the part is engineered to match original equipment dimensions and performance. It replaces OE numbers 84749791, 84673136, and 84736200 and is intended specifically for heavy-duty 2500HD and 3500HD gas models with an 8-foot bed produced between 2020 and 2025.

Will this fuel door fit my Silverado or Sierra?

Check your truck’s model, bed length, and fuel type before ordering. This part fits Chevrolet Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD from model years 2020–2025, but only for 8-foot long bed gas models. It will not fit diesel models or shorter bed lengths.

• Compatible models: Silverado and Sierra 2500HD/3500HD (2020–2025)
• Bed length requirement: 8-foot long bed only
• Fuel type requirement: gas models only, not for diesel trucks
• Cross-references OE: 84749791, 84673136, 84736200

How durable and weather-resistant is the Daposhac fuel door?

The housing is molded from high-grade ABS plastic designed to resist corrosion, UV exposure, and temperature cycling typical of truck use. An upgraded metal spring hinge improves retention and longevity versus brittle or corroded factory springs, giving reliable open/close action under harsh conditions.

• Material: high-quality ABS for impact and weather resistance
• Hinge: reinforced metal spring for durable operation
• Finish: factory-matching texture and appearance for seamless replacement
• Resists moisture and temperature-related wear

Is installation difficult and will it require modifications?

Installation is designed to be a direct replacement with OEM-style fit and fastening points, so no cutting, drilling, or custom trimming should be necessary. Most installations involve removing the old housing and snapping or bolting the new Daposhac piece into place using the same mounting locations.

• Installation: direct-fit, OEM-aligned dimensions
• Tools: basic hand tools typically sufficient (screwdriver, ratchet)
• No modifications: installs without bodywork or trimming
• Hardware: uses existing vehicle fasteners and attachment points

What should I verify before purchasing to avoid errors?

Confirm your truck’s year, model designation (2500HD or 3500HD), bed length (8-foot long bed), and that it is a gasoline model. Ordering the wrong fuel door is common when bed length or fuel type is assumed rather than checked, so inspect your current part number if possible.

• Verify: 2020–2025 model year range
• Confirm truck class: 2500HD or 3500HD
• Check bed length stamp or measure to ensure 8-foot bed
• Compare existing OE number if available

Who is this for? The Daposhac 84749791 fuel door is made for owners and technicians repairing or restoring the fuel filler area on heavy-duty Chevrolet Silverado and GMC Sierra trucks (2500HD/3500HD) from 2020 through 2025 with an 8-foot gas bed. It suits fleet maintenance teams, pickup owners replacing corroded or damaged filler housings, and DIY mechanics who want an OEM-style, no-modification replacement that matches factory fit and finish.