BONNET-VALVE-YM 3744707 - Caterpillar

Engine:
G3508 (S/N: WPN1-UP; DLR1-UP)
G3512 (S/N: WPP1-UP; WPR1-UP)
G3512B (S/N: JHH1-UP)
G3512E (S/N: SSR1-UP)
G3516 (S/N: WPS1-UP; WPT1-UP; WPW1-UP)
G3516B (S/N: ZBB1-UP; CSC1-UP; ZBC1-UP; JEF1-UP)
G3516C (S/N: GSB1-UP; GZC1-UP; GZZ1-UP)
G3516E (S/N: GAS1-UP)
G3520B (S/N: CWD1-UP)
G3520C (S/N: GZA1-UP; GZB1-UP; GZJ1-UP; GZK1-UP; GZN1-UP; RLP1-UP; LGS1-UP; CWW1-UP; CWY1-UP)
G3520E (S/N: GZE1-UP; GZH1-UP)
G3606 (S/N: 4ZS1-UP)
G3608 (S/N: BEN1-UP)
G3612 (S/N: BKE1-UP)
G3616 (S/N: BLB1-UP)
Petroleum Engine:
G3520B (S/N: TPC1-UP)
Description of Change: The new pressure sensor group is better suited for use with engine coolant.Adaptable To: The new 449-9665 Pressure Sensor Gp replaces the existing 276-6793 Pressure Sensor Gp only in engine coolant applications. The new pressure sensor is adaptable back to first production on the serial numbers listed above.Note: The 449-9665 Pressure Sensor Gp does not replace 276-6793 Pressure Sensor Gp in any instance other than in engine coolant.This change is effective on the serial numbers listed in Table 1.
Table 1
Effective Serial Numbers    
S/N:DLR00129-UP    
S/N:WPN01661-UP    
S/N:WPP01572-UP    
S/N:WPR01635-UP    
S/N:JHH01030-UP    
S/N:SSR00239-UP    
S/N:WPS00239-UP    
S/N:WPT01585-UP    
S/N:WPW02954-UP    
S/N:CSC00683-UP    
S/N:JEF02716-UP    
S/N:ZBB00408-UP    
S/N:ZBC00262-UP    
S/N:GSB00128-UP    
S/N:GZC00265-UP    
S/N:GZZ00363-UP    
S/N:GAS00281-UP    
S/N:CWD00240-UP    
S/N:TPC01139-UP    
S/N:CWW00302-UP    
S/N:CWY00222-UP    
S/N:GZA00268-UP    
S/N:GZB00256-UP    
S/N:GZJ00679-UP    
S/N:GZK00184-UP    
S/N:GZN00894-UP    
S/N:LGS00184-UP    
S/N:RLP00262-UP    
S/N:GZE00309-UP    
S/N:GZH00168-UP    
S/N:4ZS01944-UP    
S/N:BEN00973-UP    
S/N:BKE00705-UP    
S/N:BLB00909-UP