Product Description
Melling M365 Standard Replacement Oil Pump
OEM-Quality Oil Pump Replacement for 2007+ Gen IV LS Engines with DOD / AFM
The Melling M365 Standard Replacement Oil Pump is an OEM-quality solution designed for 2007-later Gen IV LS-based engines originally equipped with an M365-style oil pump. Commonly used on DOD/AFM-equipped engines, this pump directly replaces GM part number 12710304 and restores proper oil pressure and flow for worn or failing factory pumps. Ideal for stock replacements or fresh engine rebuilds, the M365 delivers dependable lubrication using Melling’s proven gerotor technology. Each pump is precision-machined, assembled to strict quality standards, and individually tested to ensure reliable performance under real-world engine operating conditions.
Key Features
- OEM-Quality Replacement: Direct replacement for GM oil pump #12710304 used on Gen IV LS engines with DOD/AFM systems.
- Standard Pressure & Volume: Restores factory oiling characteristics for stock engines and daily-driven applications.
- Advanced Gerotor Design: Utilizes Melling’s latest gerotor technology for consistent oil pressure and efficient oil delivery.
- Precision Machined Components: Gears are machined to close tolerances and end plates are precision ground for improved wear resistance.
- Ready for Installation: Includes a new pickup tube O-ring for proper sealing during installation.
Key Fitments
- Engine Generation: Fits 2007-later Gen IV LS-based engines.
- Engine Displacements: 5.3L, 6.0L, and 6.2L
- Supported Engine Codes: LH6, LMF, LC9, LH9, LS4, L76, L77, L92, L99, L9H, L94, LSA
- Application Notes: Designed for engines originally equipped with an M365-style oil pump and DOD/AFM systems. Ideal for stock replacements and engine rebuilds.
