Fit for Chevrolet Silverado 2500HD 3500HD 2020 2021 2022 2023 2024 2025. Fit for GMC Sierra 2500HD 3500HD 2020 2021 2022 2023 2024 2025 (8-foot cargo box models only) Replacement part codes: 84736200, 84673151, 84749791, 84673136. Premium Durability: Crafted from heavy-duty ABS plastic, this cap delivers superior resistance to wear, impacts, and aging. Its robust construction prevents cracking and deformation, ensuring long-lasting structural stability. Effective Solution: Perfectly replaces missing, broken, or worn-out fuel tank caps. It seals out contaminants to safeguard your vehicle's engine performance while restoring its original, pristine look. Hassle-Free Installation: Designed for a direct, bolt-on fit. No modifications or special tools are required, allowing for a quick and effortless setup that saves you valuable time.