BUSHING 2165586 - Caterpillar

Engine:
3512C (S/N: TTF1-UP; TTG1-UP)
3516B (S/N: S2R1-UP; S2T1-UP; S2X1-UP; S2Y1-UP)
3516C (S/N: TTD1-UP; PAG1-UP; TTH1-UP; TTJ1-UP; JTS1-UP; TKS1-UP; TKY1-UP)
Description of Change: An alternative thermostat can be used on 3500 Marine Engines. The thermostat ensures an improvement in a lower jacket water temperature at rated speed.Adaptable To: The improved 4W-4011 Temperature Regulator is a direct replacement for the existing 248-5513 Temperature Regulator. The new thermostat is adaptable back to the first production on the serial numbers listed above. Refer to Table 1 for a list of effective serial numbers.
Table 1
Sales Model     Effective Serial Number    
3512C     S/N:TTF00535-UP
S/N:TTG00278-UP    
3516B     S/N:S2R00769-UP
S/N:S2T00116-UP
S/N:S2X01692-UP
S/N:S2Y00117-UP    
3516C     S/N:PAG00483-UP
S/N:JTS00392-UP
S/N:TTD00401-UP
S/N:TTH00604-UP
S/N:TTJ00428-UP    
3516C HD     S/N:TKS00213-UP
S/N:TKY00228-UP