BOOT-SWITCH 9X0199 - Caterpillar

Engine:
C15 (S/N: ZKA1-UP)
C18 (S/N: ZKB1-UP; EJG1-UP)
Generator Set:
C15 GEN SET (S/N: PEC1-UP; C5E1-UP; STG1-UP; C5H1-UP; C5L1-UP; NKL1-UP; X4R1-UP; CYY1-UP)
C15 PET GS ENG (S/N: PET1-UP)
C18 GEN SET (S/N: C6C1-UP; G4C1-UP; STD1-UP; DKE1-UP; PEJ1-UP; NKK1-UP; STM1-UP; EKW1-UP)
C18 MARINE GS (S/N: CYN1-UP; GEN1-UP; MGS1-UP)
Industrial Engine:
C-15 IND (S/N: BEM1-UP)
C15 IND (S/N: JRE1-UP)
C15 INDUSTRIAL (S/N: JAS1-UP)
C18 INDUSTRIAL (S/N: JDA1-UP; WJH1-UP)
Marine Engine:
C15 MARINE (S/N: RLA1-UP)
C18 MARINE (S/N: WKB1-UP; PLE1-UP; CKH1-UP; C1J1-UP; GES1-UP; KJT1-UP; JKX1-UP)
C18 MARINE ENG (S/N: J2K1-UP; T2P1-UP)
Petroleum Engine:
C-15 PETROLEUM (S/N: Z2C1-UP)
C15 PETROLEUM (S/N: JDK1-UP)
C18 PETROLEUM (S/N: WJW1-UP)
Petroleum Power Train Package:
TH35-C15I (S/N: PBN1-UP)
TH35-C15T (S/N: PBL1-UP)
Description of Change: An improved locknut is now used in order to tighten the exhaust manifold on the engines that are listed above. The improved locknut maintains a more consistent torque on the exhaust manifold and on the cylinder head joint.Adaptable To:
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.