YOKE 4468175 - Caterpillar

Illustration 1 g02230295
When replacing the exhaust manifold gaskets use the improved 2N-2766 Locknut (1). The torque for the 2N-2766 Locknut is 50 N m (37 lb ft).The improved locknut is adaptable back to the first production of the above listed engines.
Table 1
Effective Engine Serial Numbers    
S/N:BEM07167-UP    
S/N:C5E02840-UP    
S/N:C5H01514-UP    
S/N:C5L03820-UP    
S/N:CYY00714-UP    
S/N:JAS01431-UP    
S/N:JDK00343-UP    
S/N:JRE12348-UP    
S/N:NKL00154-UP    
S/N:PBL00167-UP    
S/N:PBN00192-UP    
S/N:PEC00125-UP    
S/N:PET00338-UP    
S/N:RLA01080-UP    
S/N:STG00188-UP    
S/N:X4R00557-UP    
S/N:Z2C00391-UP    
S/N:ZKA00124-UP    
S/N:C1J01136-UP    
S/N:C6C00734-UP    
S/N:CKH03278-UP    
S/N:CYN00790-UP    
S/N:DKE00531-UP    
S/N:EJG02056-UP    
S/N:EKW01064-UP    
S/N:G4C04866-UP    
S/N:GEN00285-UP    
S/N:GES00257-UP    
S/N:J2K00263-UP    
S/N:JDA00285-UP    
S/N:JKX00383-UP    
S/N:KJT00210-UP    
S/N:MGS00922-UP    
S/N:NKK00112-UP    
S/N:PEJ00146-UP    
S/N:PLE00645-UP    
S/N:STD00230-UP    
S/N:STM01777-UP    
S/N:T2P01005-UP    
S/N:WJH07903-UP    
S/N:WJW00203-UP    
S/N:WKB00435-UP    
S/N:ZKB00124-UP    The change is effective at the factory with the engine serial numbers that are listed in Table 1.