BASE AS 2366648 - Caterpillar

Table 1
Intake     Exhaust    
212-0932 Inlet Valve     212-0933 Exhaust Valve    
224-1300 Valve Guide    Conversion kits will be required to install the new cylinder head group. Conversion kits have been released. The conversion kits contain most of the parts and the conversion kits will include a cylinder head gasket kit in order to facilitate conversion from the original cylinder head to the new taller cylinder head. Refer to Tables 2, and 3.
Table 2
Cylinder Head Group    
Old Part     New Part    
200-0615 Cylinder Head Gp     223-6519 Cylinder Head Gp    
0R-7316 Cylinder Head Gp     10R-1970 Cylinder Head Gp    
Table 3
Required Parts    
Quantity     Part    
1     226-1803 Conversion Kit (1)    
2     0S-1591 Bolts    
2     9M-4136 Spacers    
( 1 ) Use this conversion kit in order to convert from a short cylinder head to a tall cylinder head.If you are changing a tall cylinder head with a tall cylinder head, only the cylinder head gasket kit is required. Refer to Table 4.
Table 4
Cylinder Head Gasket Kit (1)    
Old Part     New Part    
7X-7657 Gasket Kit     234-8829 Gasket Kit    
( 1 ) Use this cylinder head gasket kit in order to replace a tall cylinder head with a tall cylinder head.
Illustration 1 g01083215
Top view of the front housing fastener group (1) Cylinder head (2) Plate (3) Bolts (4) Front housing (6) Lifting eyeAdditional hardware is required in order to adapt the 4N-6006 Front Housing Fastener Gp for the taller cylinder head. Longer bolts and spacers are needed in order to retrofit the fastener group. Spacers are placed under the portion of plate (2) that extends over front housing (4). Longer bolts (3) are installed through the plate, and the spacers. The longer bolts are threaded into the front housing. Refer to Table 3 and refer to Figure 1.A lower torque is used for the cylinder head bolts in order to reduce distortion of the cylinder head bottom deck. The Special Instruction, REHS1433 will explain the torque procedure for the new cylinder head group. This Special Instruction is included in the conversion kit.The cylinder head is effective with the engines that are listed in Table 5.
Table 5
Engine Serial Number    
S/N:1RK110 and Up    
S/N:4FD2648 and Up    
S/N:CTS382 and Up