COVER GP-VALVE MECHANISM 2889176 - Caterpillar

Engine:
3512B (S/N: MHA1-UP; BRC1-UP; 2AF1-UP; 8DF1-UP; PWG1-UP; S2G1-UP; S2H1-UP; S2J1-UP; S2K1-UP; S2L1-UP; S2M1-UP; 7HM1-UP; 8EM1-UP; 8RM1-UP; BRN1-UP; S2N1-UP; 4TN1-UP; 1PW1-UP; 2GW1-UP; 3ZW1-UP; 2EZ1-UP; 1GZ1-UP)
3512C (S/N: LLA1-UP; R1A1-UP; LLB1-UP; TTC1-UP; TTE1-UP; LLF1-UP; TTF1-UP; TTG1-UP; MLM1-UP; SLM1-UP; NJT1-UP; E3W1-UP; E3X1-UP; E3Y1-UP)
3516B (S/N: CDE1-UP; B5G1-UP; BCK1-UP; LEK1-UP; CAN1-UP; CBN1-UP; 7RN1-UP; 8CN1-UP; 8KN1-UP; 9AN1-UP; S2P1-UP; GAR1-UP; PBR1-UP; S2R1-UP; ZAR1-UP; GZS1-UP; S2S1-UP; S2T1-UP; YAT1-UP; S2W1-UP; YAW1-UP; 2FW1-UP; 3CW1-UP; 4BW1-UP; S2X1-UP; GZY1-UP; S2Y1-UP; 6HZ1-UP)
3516C (S/N: PRC1-UP; TTD1-UP; TTH1-UP; SBJ1-UP; SCJ1-UP; TTJ1-UP; JTS1-UP; PES1-UP; T2X1-UP; E3Z1-UP)
Description of Change: The new O-rings are made with a material that is better able to withstand high temperatures. The new O-rings retain elasticity and provide a longer service life.Adaptable To: Use the new 214-7566 O-Ring Seal in place of the original 3J-7354 O-Ring Seal, which is not canceled.If a 3J-7354 O-Ring Seal is found to be brittle, install a 214-7566 O-Ring Seal .Also use the 214-7566 O-Ring Seal when a cylinder head is overhauled or when the engine is overhauled.Locations of the plugs and the O-ring seals in the cylinder heads are shown in Illustrations 1 and 2. Effectivity is listed in Table 1.
Illustration 1 g02254753
(1) Location of the plug and O-ring seal
Illustration 2 g02254755
(1) Locations of the plugs and O-ring seals
Table 1
Effectivity for the 214-7566 O-Ring Seal    
3512B    
S/N:1GZ00245    
S/N:1PW00456    
S/N:2AF00755    
S/N:2EZ00376    
S/N:2GW00432    
S/N:3ZW01120    
S/N:4TN00868    
S/N:6EF00362    
S/N:7HM00271    
S/N:8DF00197    
S/N:8EM00562    
S/N:8RM00951    
S/N:BRC00194    
S/N:BRN00197    
S/N:MHA00159    
S/N:MKH00261    
S/N:MRG00104    
S/N:PWG00231    
S/N:S2G00318    
S/N:S2H00526    
S/N:S2J00742    
S/N:S2K00333    
S/N:S2L00919    
S/N:S2M00203    
S/N:S2N00130    
S/N:SPM00002    
3512C    
S/N:E3W00207    
S/N:E3X00233    
S/N:E3Y00002    
S/N:LLA02335    
S/N:LLB00113    
S/N:LLF00371    
S/N:MLM00130    
S/N:NJT00109    
S/N:R1A00625    
S/N:SLM00236    
S/N:TTC00427    
S/N:TTE00204    
S/N:TTF00405    
S/N:TTG00239    
3512C HD    
S/N:F2X00113    
S/N:LLK00002    
S/N:R1S00152    
3516B    
S/N:2FW00424    
S/N:3CW00258    
S/N:3XS00408    
S/N:4BW00519    
S/N:6HZ00230    
S/N:7RN12040    
S/N:8CN00212    
S/N:8KN00588    
S/N:9AN00412    
S/N:B5G00102    
S/N:BCK00374    
S/N:CAN00139    
S/N:CBN00499    
S/N:CDE00002    
S/N:E5P00002    
S/N:E6P00102    
S/N:GAR00203    
S/N:GZS00895    
S/N:GZX00125    
S/N:GZY00137    
S/N:LEK00154    
S/N:PAG00481    
S/N:PBR00669    
S/N:RKT00168    
S/N:S2P00248    
S/N:S2R00687    
S/N:S2S00488    
S/N:S2T00112    
S/N:S2W00139    
S/N:S2X01626    
S/N:S2Y00117    
S/N:YAT00396    
S/N:YAW00200    
S/N:ZAP01525    
S/N:ZAR00672    
3516B HD    
S/N:S2Z00433    
3516C    
S/N:E3P00002    
S/N:E3Z00202    
S/N:JTS00166    
S/N:PES00384    
S/N:PRC00002    
S/N:SBJ01103    
S/N:SBK00996    
S/N:SCJ00115    
S/N:T2X00123    
S/N:TTD00352    
S/N:TTH00262    
S/N:TTJ00294    
3516C HD    
S/N:SBM00158    
S/N:SCK00117    
S/N:SDX00108