Merchant 10604 263XHD Transfercase | 2001-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Features:

• Brand new 263XHD transfer case
• No core charge required
• Compatible with 2001–2007 GM Duramax trucks
• Fits Silverado and Sierra 2500HD and 3500HD
• Ships with 2-quart bottle of fluid
• Case ships dry and must be filled before use
• High torque capacity for heavy duty applications
• Designed for long-term durability and performance
• Direct replacement for OEM transfer case
• Encoder motor not included
• Ideal solution for worn or damaged transfer cases
• Ready to install with basic tools and fluid

Get Your Drivetrain Back In Action With Confidence

If your factory transfer case is worn out or causing issues, the Merchant 10604 263XHD Transfer Case is the fresh start your truck deserves. Built brand new from the ground up, this replacement unit is ready to handle everything your 2001–2007 Duramax-powered Silverado or Sierra 2500HD or 3500HD can throw at it. Whether you’re towing, hauling, or hitting the backroads, the 263XHD is a proven workhorse designed for dependable power transfer and smooth operation. With no core charge required, you don’t have to worry about sending back your old unit, just bolt it in and go. Each transfer case ships with the exact amount of fluid it needs (64 ounces), making it easy to prep for install. You’ll get it dry, so you can add fresh fluid yourself and ensure everything is sealed and properly filled. This is a straightforward, high-quality solution for restoring full drivetrain performance.

Built Tough To Match The Demands Of Heavy Duty Use

The Merchant 10604 263XHD Transfer Case is designed as a direct replacement for GM 2500HD and 3500HD trucks running the 6.6L Duramax from 2001 to 2007. It’s a complete, brand new unit, not a remanufactured core, which means no reused parts, no guesswork, and no core exchange. Engineered to meet or exceed OEM durability, the 263XHD features robust internal components built to handle the torque and load demands of heavy-duty work trucks. This unit is shipped dry and includes a 2-quart bottle of transfer case fluid to ensure proper fill volume during installation. Note that it does not come with an encoder motor, allowing you to reuse your existing one or select the exact replacement you prefer. With its direct-fit design, installation is simplified and doesn’t require custom brackets or modifications. Whether you're replacing a failing unit or just planning ahead, this transfer case delivers reliability you can count on.

Fits: 2001, 2002, 2003, 2004, 2005, 2006, 2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Notes:

• This is a brand new transfer case unit
• No core charge is required for purchase
• Compatible with 2001–2007 GM 2500HD/3500HD trucks with 6.6L Duramax
• Transfer case is shipped dry and must be filled before use
• Includes a 2-quart (64 oz.) bottle of transfer case fluid
• One full bottle is the exact fill amount needed
• Encoder motor is not included in the kit
• Designed as a direct-fit replacement for OEM applications