3045523R1 Precombustion Chamber Fits Case IH B275 B414 424 434 444 354 364One New Aftermarket Replacement Fits Case International Injector Pre Cup Pre combustion Chamber Fits Tractor models: 354, 364, 384, 424, 434, 444, 2424 (with BD154 Engine), 2444, 3414, B275, B414, TD5, Early 500. This Injector Pre Cup Pre combustion Chamber is for Cylinder Head # 3043824R1, which is available through our Store. For the Cylinder Head with Valve Assemblies, search for Part # 3043824R1. For the Cyl. Head with Dual Valve Springs, search