Merchant 12624683 Automotive Right Hand Exhaust Manifold | 01-16 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Features:

• Direct OEM replacement for the passenger-side (right-hand) exhaust manifold

• Compatible with 2001–2016 GM 6.6L Duramax engines (LB7, LLY, LBZ, LMM, LML)

• Constructed from high-quality cast iron for durability and heat resistance

• Designed to restore proper exhaust flow and maintain engine performance

• Ideal for replacing cracked or warped factory manifolds

Restore Your Duramax's Exhaust Efficiency

The Merchant 12624683 Right-Hand Exhaust Manifold is engineered to replace the factory passenger-side manifold on 2001–2016 GM 6.6L Duramax engines. Over time, stock manifolds can suffer from cracking or warping due to extreme heat cycles, leading to exhaust leaks and reduced engine efficiency. This direct-fit replacement ensures optimal exhaust flow, helping to maintain your engine's performance and reliability.

Built for Durability and Performance

Crafted from robust cast iron, this manifold is designed to withstand the high temperatures and pressures of diesel engine operation. Its precise construction ensures a seamless fit, making installation straightforward and hassle-free. Pairing this manifold with the Merchant 98002804 Exhaust Manifold Gasket is recommended to ensure a secure, leak-free seal and long-lasting performance.

Package Includes:

• (1) Right-hand (passenger-side) exhaust manifold

Specifications:

• Material: Cast iron

• Position: Passenger side (right-hand)

• Port Shape: Rectangular

• Mounting Hole Quantity: 8

• Oxygen Sensor Port: None

• Gaskets and hardware: Not included

Fitment Notes:

• Fits 2001–2016 Chevrolet Silverado and GMC Sierra 2500HD/3500HD models equipped with 6.6L Duramax engines (LB7, LLY, LBZ, LMM, LML)

• Direct replacement for OEM part number 12624683

• Gaskets and mounting hardware sold separately; recommended to use Merchant 98002804 Exhaust Manifold Gasket for optimal sealing