- Engine:
- 3508 (S/N: 95Y1-UP; 23Z1-UP; 70Z1-UP)
- 3508B (S/N: S2A1-UP; S2B1-UP; 3DM1-UP; 3DW1-UP)
- 3512 (S/N: 49Y1-UP; 24Z1-UP; 67Z1-UP)
- 3512B (S/N: S2H1-UP; 8EM1-UP; 1PW1-UP)
- 3516 (S/N: 25Z1-UP; 73Z1-UP)
- 3516B (S/N: CBN1-UP; 9AN1-UP; S2P1-UP; S2R1-UP; 2FW1-UP; S2X1-UP)
Description of Change: A new fuel cooler is available for the above marine auxiliary engines.
The new fuel cooler is made with titanium plates instead of copper, nickel, and brass construction. Single plates can be added in order to obtain additional cooling capacity. Individual plates can be replaced if the plates are damaged. Each plate is electrically isolated due to separately installed gaskets. A turbulent flow within the fuel cooler provides a self-cleaning feature. The durability of the fuel cooler has been greatly improved.
Adaptable To: The 132-9502 Fuel Cooler Gp is cancelled and is replaced by the 139-5657 Fuel Cooler Gp. The new fuel cooler is used on engines that are built after 01June 2005. The 139-5657 Fuel Cooler Gp is made as ordered.