2007/11/01 Caterpillar

On-highway Engine:

C15 (S/N: SDP1-8270)

C13 (S/N: LEE1-6574)

Description of Change: A new purge pump and a new service pack are now used. The new pump and a new service pack now have a larger inlet and outlet ports. The new purge pump and the new service pack require additional parts. The additional parts are used to connect the pump and the pack to existing lines and connections.

Adaptable To:

Illustration 1	g01432347
New Purge Pump and Service Pack (1) Inlet Port (9/16 - 18 inch) (2) Outlet Port (7/16 - 20 inch)

Illustration 2	g01432346
Old Purge Pump and Service Pack (3) Inlet Port (1/4 - 18inch) (4) Outlet Port (1/8 - 27 inch)

The new purge pump requires a new electrical connector as well as a new inlet elbow and a new outlet elbow. The new service pack only requires a new inlet elbow and a new outlet elbow.

The new parts that are required for the new purge pump and the service pack are listed in Table 1 and Table 2.

Note: Install the updated fitting before installing the pump on the bracket.

Note: C13 engines with a serial number that is less than LEE1974-UP will use a 6V-1355 Elbow instead of using a 4R-8686 Flared Elbow.