GMC Sierra 3500 HD Coolant Tank Kit - Wehrli - OEM Placement - Cat Yellow - `01-`07. A fabricated aluminum reservoir that replaces the factory plastic tank on 2001–2007 GM 2500/3500 HD 6.6L Duramax trucks, finished in Cat Yellow.

Built by Wehrli Custom Fab, this tank mounts in the OEM location using factory points for a precise fit. The welded aluminum body resists cracking and heat cycling, while the integrated sight glass makes level checks fast. The kit includes a black anodized CNC billet cap, mounting hardware, overflow hose, and a low coolant level sensor. It installs on stock trucks with basic hand tools and requires no additional modifications. Direct replacement for GM part numbers 15808714, 15290795, and 19353729.

Features

• OEM placement; uses factory mounting points
• Fabricated aluminum tank with durable Cat Yellow powder coat
• Coolant level sight glass
• Black anodized CNC billet cap
• Includes mounting hardware and overflow hose
• Low coolant level sensor included
• Fits 2001–2007 6.6L Duramax LB7/LLY/LBZ; installs with basic hand tools

Have questions or planning a build? Call us. We offer installation and customization services at our Austin, Texas and Los Angeles, California area locations. TX: 512-982-9393 | CA: 562-981-6800

Buying multiple items? Contact us for potential shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov