BOOT-RUBBER 4M1829 - Caterpillar

Engine:
C-15 (S/N: EGH1-UP)
C-16 (S/N: W1A1-UP)
C18 (S/N: EJG1-UP)
Marine Engine:
C18 MARINE (S/N: NAX1-UP; NAY1-UP)
Engine News SEBD9581, March 2009, "A New Spring Kit for the Fuel Transfer Pump Is Now Available". Disregard this article. Refer to the article that follows.A new 339-4983 Spring Kit is now available for the engines that are listed above. The new spring kit incorporates a stiffer spring in order to increase the bypass fuel pressure. This results in improved fuel pressure to the fuel injectors.Refer to Testing and Adjusting, SENR9703, "Low Fuel Pressure" in order to check for low fuel pressure. If the bypass fuel pressure is below the minimum specification utilize the new spring kit.
Table 1
Old Part Number     Description     Field Service Kit     Description    
316-6863     Fuel Transfer Pump Gp     339-4983     Spring Kit    
316-6864     Fuel Transfer Pump Gp     339-4983     Spring Kit     The 316-6863 Fuel Transfer Pump Gp and the 316-6864 Fuel Transfer Pump Gp can be updated by the installation of the 339-4983 Spring Kit. Refer to Table 1.