
Specifications
- Brand
- Wehrli
- Part #
- WCF100645-RED
- UPC
- WCF100645-RED

Wehrli 01-07 Chevrolet 6.6L LB7/LLY/LBZ Duramax OEM Placement Coolant Tank Kit - WCFab Red
$559.23
Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.
Wehrli 01-07 Chevrolet 6.6L LB7/LLY/LBZ Duramax OEM Placement Coolant Tank Kit - WCFab Red. Replaces ugly plastic tank with a durable aluminum one.
Key Features
- Fits 2001-2007 Chevrolet Silverado and GMC Sierra 2500 HD and 3500 HD trucks with 6.6L Duramax LB7, LLY, or LBZ engines.
- Replaces the factory plastic coolant reservoir with a custom fabricated aluminum tank.
- Features a durable custom red powder coat finish for improved aesthetics and corrosion resistance.
- Includes a coolant level sight glass for easy fluid level monitoring.
- Comes with a low coolant level sensor to alert you to low fluid conditions.
- Includes a black anodized CNC machined billet aluminum cap and an overflow hose.
⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more
Product Details
If you're looking to clean up the engine bay on your 2001-2007 Chevrolet Silverado or GMC Sierra HD truck with a 6.6L Duramax diesel, replacing that factory plastic coolant tank is a great place to start. This fabricated aluminum coolant tank from Wehrli Custom Fabrication mounts right where your original tank sits, making installation straightforward. It's a solid option for anyone wanting to improve the look of their engine compartment while adding a more durable component.
This tank isn't just about looks; it's built to last. The aluminum construction is finished with a durable custom red powder coat that resists corrosion and looks sharp. A built-in coolant level sight glass lets you easily check your fluid level at a glance, and it comes with a low coolant level sensor to alert you if things get too low. The kit also includes a black anodized billet aluminum cap and an overflow hose, all designed to work with your truck's existing setup. It uses the factory mounting points, so no major modifications are needed.
This kit is designed to be a direct replacement for your stock coolant reservoir, fitting seamlessly into trucks equipped with the LB7, LLY, or LBZ Duramax engines. Installation is typically a simple bolt-on process using basic hand tools, making it an accessible upgrade for many truck owners. You'll be replacing GM part numbers like 15808714, 15290795, and 19353729 with a much more robust and visually appealing component.
Specifications
- Brand
- Wehrli
- Manufacturer Part #
- WCF100645-RED
- UPC
- WCF100645-RED
Frequently Asked Questions
You Might Also Like
Similar products from the same category

Wehrli 01-07 Chevrolet 6.6L LB7/LLY/LBZ Duramax OEM Placement Coolant Tank Kit - WCFab Grey

Wehrli 06-10 Duramax LBZ/LMM Thermostat Housing Kit For Dual CP3 - WCFab Grey

Wehrli 17-19 Chevrolet 6.6L L5P Duramax OEM Placement Coolant Tank Kit - WCFab Red

Wehrli 11-16 Chevrolet 6.6L LML Duramax OEM Placement Coolant Tank Kit - Chevy Orange
Wehrli 01-07 Chevrolet 6.6L LB7/LLY/LBZ Duramax OEM Placement Coolant Tank Kit - WCFab Red
