ACDelco Engine Air Filter – A3257C (GM Part No. 84850016) Chev 2500 3500

ACDelco Engine Air Filter – A3257C (GM Part No. 84850016)

Genuine GM-Original Equipment Replacement

Ensure your engine is breathing clean air with the ACDelco A3257C Engine Air Filter, crafted to meet or exceed General Motors’ rigorous standards. Designed and validated by GM engineers, this filter delivers reliable performance, optimal filtration, and perfect fitment for your GM vehicle.

Key Features

• GM OE Quality — Engineered precisely for select Chevrolet, GMC, and Duramax applications; trusted and backed by GM. 

• Exceptional Filtration Efficiency — Captures airborne dust and debris while maintaining strong airflow to support engine performance. 

• Tight Seal Construction — Helps prevent unfiltered air from entering the combustion chamber for better engine protection. 

• Optimized Flow Management — Designed to maximize engine efficiency while minimizing airflow restriction.

• Standard Warranty — Covered by a 24-month/unlimited-mile limited warranty when installed through authorised GM channels. 

Vehicle Compatibility

Tailored for heavy-duty Duramax diesel applications, including:

• Chevrolet Silverado 2500 HD / 3500 HD with 6.6L Duramax (L5P), model years 2017–2019.

• Also inferred to suit similar GMC Sierra HD models with the same engine setup. 

Benefits at a Glance

• Efficient engine performance — Maintains airflow and combustion health.

• Improved engine longevity — Shields internal components from harmful debris.

• OEM-level dependability — Designed and backed by GM for precise fit and operation.

• Standardised reliability — Comes with a manufacturer's warranty for added peace of mind.