Wehrli Custom Fabrication WCF100848-CAT OEM Placement Coolant Tank Kit Cat Yellow

The Wehrli Custom Fabrication WCF100848-CAT is a fabricated aluminum coolant tank kit designed for the 2025–2026 6.7L Cummins diesel engine. Finished in a striking Cat Yellow powder coat, this kit replaces the factory plastic coolant reservoir with a precision-welded aluminum tank that mounts directly in the OEM coolant tank location — no cutting, fabrication, or additional modifications required.

Engineered to be a direct-fit upgrade, this coolant tank kit uses the factory mounting points and installs with basic hand tools, making it an ideal upgrade for diesel enthusiasts who want improved durability and a custom engine bay appearance without sacrificing functionality.

Kit Includes:

• Fabricated aluminum coolant tank
• Low coolant level sensor
• Black anodized CNC-machined billet aluminum cap
• Coolant level sight glass
• Overflow hose
• Installation hardware
• Cat Yellow powder coat finish

The integrated coolant level sight glass makes it easy to monitor coolant levels at a glance, while the serviceable low coolant level sensor retains OEM-style warning functionality. The black anodized billet aluminum cap provides a premium finishing touch that complements the bold Cat Yellow exterior. Made in the USA by Wehrli Custom Fabrication, a trusted name in diesel performance and fabrication.