BOLT 8T0664 - Caterpillar

Engine:
C18 (S/N: TNA1-UP; JLE1-UP; T2R1-UP; GEX1-UP)
Generator Set:
C18 (S/N: GBM1-UP; CYN1-UP; GEN1-UP; MGS1-UP)
Marine Engine:
C15 (S/N: RLA1-UP)
C18 (S/N: WKB1-UP; PLE1-UP; CKH1-UP; C1J1-UP; JHL1-UP; GES1-UP; JKX1-UP; T2P1-UP)
Engine News SEBD9966, 31 October 2014, "A New Valve Cover Base Is Used on Certain C15 and C18 Commercial Engines". Disregard the previous article, the effective serial numbers have been updated.Description of Change: The new valve cover base has an improved seal groove to allow for better sealing capability when using the existing seal.Adaptable To: The new 419-3614 Valve Cover Base replaces the existing 289-8215 Valve Cover Base. The new valve cover base is adaptable back to first production on the serial numbers listed above.Note: The new 419-3614 Valve Cover Base uses the existing 272-0390 Seal .Note: The new 425-6526 Engine Harness As must be used with the new 419-3614 Valve Cover Base .This change is effective for the serial numbers listed in Table 1.
Table 1
Effective Serial Numbers    
S/N:RLA01080-UP    
S/N:C1J01136-UP    
S/N:CKH03278-UP    
S/N:CYN00790-UP    
S/N:GBM01197-UP    
S/N:GEN00285-UP    
S/N:GES01216-UP    
S/N:GEX00107-UP    
S/N:JHL00113-UP    
S/N:JKX01974-UP    
S/N:JLE00115-UP    
S/N:MGS00922-UP    
S/N:PLE00645-UP    
S/N:T2P02639-UP    
S/N:T2R00124-UP    
S/N:TNA00139-UP    
S/N:WKB00435-UP