Merchant 12644591 Engine Oil Pump | 2011-2016 GM 2500HD/3500HD 6.6L Duramax LML

Features:

• Direct replacement for factory oil pump
• Recommended during major engine repairs
• Ideal for turbo failure or crankshaft service
• Maintains proper engine oil pressure
• Helps ensure long-term engine durability
• Built to meet or exceed OEM standards
• Durable construction for high-stress conditions
• Critical for reliable turbocharger operation
• Supports optimal lubrication under heavy loads

Protect Your Duramax with a Fresh Oil Pump Upgrade

If you’re diving into a major engine repair, dealing with turbo failure, or replacing a crankshaft on your 2011–2016 GM 2500HD or 3500HD 6.6L Duramax LML, it’s the perfect time to upgrade one of the most critical parts of your engine—the oil pump. The Merchant 12644591 Engine Oil Pump is a direct replacement designed to restore and maintain proper oil pressure, giving your fresh engine work the foundation it needs to last. An old, worn-out pump can jeopardize everything from bearing life to turbocharger performance, making it a smart move to swap in a new, reliable unit while you have the engine apart.

Built for Long-Term Durability and Consistent Performance

Merchant builds this pump to meet or exceed OEM specifications, ensuring it delivers consistent oil flow under high-load, high-temperature conditions. Whether your truck is hauling heavy loads, running upgraded turbos, or just logging hard daily miles, a healthy oil pump helps maintain critical lubrication when it matters most. Installation is straightforward when paired with common service jobs like turbo replacement or bottom-end rebuilds, and replacing the pump now could save you from costly engine damage later. When reliability is on the line, the Merchant 12644591 Engine Oil Pump is the upgrade your Duramax deserves.

Fits: 2011, 2012, 2013, 2014, 2015, 2016 GM 2500HD/3500HD 6.6L Duramax LML