- Generator Set:
- G3516C (S/N: GSB1-UP; TJB1-UP; TJC1-UP; GZZ1-UP)
- G3520C (S/N: GZL1-UP; GZM1-UP; B9P1-UP; CWY1-UP)
New turbochargers are available for G3516C and G3520C Engines. The main improvements to the turbochargers are the following items:
- New connection for the compressor
- Addition of a centering ring
The new connection for the compressor has the following improvements: increased thread size, triple start thread and compressor key. This allows a more rugged connection that is easier to service. The improvements will increase the service life of the connection.
The addition of a centering ring to the turbine housing improves reliability. The centering ring will reduce the risk of the turbine to rub against the turbine housing.
Note: There are only two parts from the former turbochargers that are reusable on the new turbochargers. The nozzle ring and the compressor housing may be reused.
Table 1 lists the new part numbers and the former part numbers.
New Part Numbers and Former Part Numbers     | |||
Serial Number Prefix     | Sales Model     | New Part Number     | Former Part Number     |
S/N:GSB     | G3516C     | 254-0788     | 218-3182     |
S/N:TJB     | G3516C     | 254-0789     | 239-3891     |
S/N:TJC     | G3516C     | 254-0788     | 218-3182     |
S/N:GZZ     | G3516C     | 254-0789     | 239-3891     |
S/N:GZL     | G3520C     | 254-0784 254-0785     |
206-4153 222-5204     |
S/N:GZM     | G3520C     | 254-0784     | 206-4153     |
S/N:B9P     | G3520C     | 254-0784 254-0785     |
206-4153 222-5204     |
S/N:CWY     | G3520C     | 254-0784     | 206-4153     |