0 Caterpillar 3406C, , Heads, Fits to: , Brand New Caterpillar 3406C LOADED Stage 2 Cylinder Head with ROUND PORTS. This stage 2 cylinder head is an upgrade from the standard cylinder head. The difference is that the exhaust valves in this cylinder head have all been upgraded to inconel valves. This major performance improvement increases the capacity of the valves to endure higher temperatures as well as heightened pressure. They are better than OEM quality containing 5% more nickel content in the casting material. This additional nickel content prevents the cylinder head from cracking in between the valves. Additionally, the coolant passages have been enlarged by 30%, and inner ribs have been reinforced to reduce heat stress. OE Reference 0R-0832 0R-0977 0R-1445 0R-2097 0R-2145 0R-3670 0R-3673 0R-3676 0R-3715 0R-3718 0R-3719 0R-4883 0R-4884 0R-4886 0R-4888 0R-4918 0R-4920 0R-4922 0R0832 0R0977 0R1445 0R2097 0R2145 0R3670 0R3673 0R3676 0R3715 0R3718 0R3719 0R4883 0R4884 0R4886 0R4888 0R4918 0R4920 0R4922 105-1528 1051528 10R-7438 10R-9383 10R74, Serial# A1105100CRG, ,
