0 Caterpillar C13, , Heads, Fits to: , Brand New Caterpillar C13 LOADED Stage 2 Cylinder Head 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. 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. OE Reference 10R2602 10R3394 10R6392 10R9922 20R1952 2240878 2408271 2454030 2454031 2496672 2572168 2572170 2574095 2655263 2893211 3009511 3050617 3086358 3358322 3453752 4842155 4866227 5945181 10R-2602 10R-3394 10R-6392 10R-9922 20R-1952 224-0878 240-8271 245-4030 245-4031 249-6672 257-2168 257-2170 257-4095 265-5263 289-3211 300-9511 3, Serial# A3050617MG, ,
