Wehrli Custom Fabrication WCF100542-CAT Billet Aluminum Coolant Tank Kit

The Wehrli Custom Fabrication WCF100542-CAT is a high-quality billet aluminum coolant tank kit designed as a direct-fit upgrade over the factory plastic coolant degas or overflow tank. Engineered by Wehrli Custom Fabrication (WCF) — a trusted name in heavy-duty diesel performance fabrication — this kit delivers improved durability, heat resistance, and a clean, show-quality appearance under the hood.

Key Features:

• Precision-machined and fabricated from high-grade billet aluminum for superior strength and longevity
• Resists cracking, warping, and degradation caused by extreme heat cycles that commonly fail OEM plastic tanks
• Direct-fit replacement designed to use factory mounting locations for straightforward installation
• Includes all necessary hardware and fittings for a complete, bolt-on installation
• Anodized or polished finish options provide corrosion resistance and a premium appearance
• Designed for Caterpillar engine applications (indicated by -CAT suffix)
• Manufactured in the USA by Wehrli Custom Fabrication

Upgrade your cooling system with the confidence of WCF's proven fabrication quality. This coolant tank kit eliminates the weak point of the OEM plastic reservoir, helping maintain proper coolant levels and system pressure over the long haul — whether on the work site or the strip.