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The Moroso 1-1/4-12UNF aluminum fill cap kit is a machined fill cap assembly intended to replace or upgrade factory radiator or coolant fill fittings. Made with aluminum components and standard 1‑1/4-12UNF threads, the kit provides a neat, serviceable sealing solution for coolant systems that use that thread size. It’s a straightforward replacement when a durable aluminum fill cap is preferred.
Moroso 1-1/4 -12UNF Aluminum Fill Cap Kit
