SEAL 4H1723 - Caterpillar

Engine:
G3304 (S/N: N4F1-UP; 1RG1-UP)
G3304 SI NA (S/N: 37Y1-UP)
G3304B (S/N: A4E1-UP)
G3306 (S/N: JCA1-UP; G6X1-UP; 07Y1-UP)
G3306B (S/N: S6E1-UP; R6S1-UP)
Engine News SEBD9785, 1 June 2012, "An Improved Front Crankshaft Seal Is Used on G3300 Engines". The article was revised to add serial number prefixDescription of Change: A more robust front crankshaft seal is being used on G3300 series engines. The new seal is more resistant to runout and grooving of the wear sleeve.Adaptable To: The 362-8853 Crankshaft Seal Gp is a direct replacement for the 9Y-9895 Crankshaft Seal Gp Note: If the 9Y-9895 Crankshaft Seal Gp has an acceptable service life, continue to use the seal. The 9Y-9895 Crankshaft Seal Gp will remain available for service. This change is effective for the serial numbers listed in Table 1
Table 1
Effective Serial Numbers    
S/N:G6X1-UP    
S/N:JCA1-UP    
S/N:N4F1-UP    
S/N:R6S1-UP    
S/N:S6E1-UP    
S/N:1RG1-UP    
S/N:37Y1-UP    
S/N:07Y1-UP