Momentum Worx CAT 223-9250 Cylinder Head | Inconel Valves + CGI Construction

If you're rebuilding a Caterpillar C15, C16, C18, or 3406E, the cylinder head is not the place to cut corners. The 223-9250 Cylinder Head from Momentum Worx is built for customers who expect more than a basic stock replacement.

This head comes fully loaded and ready for installation, featuring premium Inconel valves for improved durability in high-heat, high-load applications. Whether your truck spends its life pulling heavy, running performance tuning, or stacking miles on the highway, Inconel offers superior resistance to heat fatigue compared to standard valve materials.

What really sets this head apart is its CGI (Compact Graphite Iron) construction. Compared to traditional cast iron, CGI offers increased strength, better thermal stability, and improved resistance to cracking—making it a serious upgrade for high-horsepower builds, towing applications, or anyone tired of weak factory castings.

Built to fit a wide range of popular CAT applications, this 223-9250 cylinder head fits 3406E, C15, C16, and C18 engines and is backed by Momentum Worx’s 1-year warranty. Because when you're this deep into an engine build, the last thing you want is to do it twice.

Features:

• Fits CAT 3406E, C15, C16, and C18 engines
• OEM-style replacement: 223-9250
• Fully loaded assembly
• Premium Inconel valves for superior heat resistance
• CGI (Compact Graphite Iron) casting for added strength and durability
• Ideal for stock, heavy-haul, and performance applications
• Backed by a 1-year warranty

Built for guys who work their engines hard—and expect their parts to do the same.

***Ships Flat Rate Via Pallet - any other items added to your cart at checkout will allow you to choose expedited air shipping, this will NOT apply to the cylinder head.