- Engine:
- G3508 (S/N: 2JF1-UP; 9TG1-UP; CPJ1-UP; WPM1-UP; WPN1-UP; DLR1-UP; CPS1-UP; CPY1-UP; 4WD1-UP)
- G3512 (S/N: 4KC1-UP; 5JD1-UP; 7NJ1-UP; CRN1-UP; WPP1-UP; WPR1-UP; GNS1-UP; 6JW1-UP)
- G3516 (S/N: ZBA1-UP; 8LD1-UP; CPG1-UP; 4EK1-UP; WPS1-UP; WPT1-UP; WPW1-UP; 8PW1-UP; CSZ1-UP; ZAZ1-UP)
Description of Change: An improved gas pressure regulator is used on G3500 Engines. The valve stem, the deflector ring, and the valve seat are built as a single assembly on the new gas pressure regulator. The new design will not allow the valve seat to separate from the valve stem which could lead to starting and/or performance problems.
Adaptable To: The 335-5764 Gas Pressure Regulator is a direct replacement for the 7E-3407 Gas Pressure Regulator. The new 334-8409 Stem As replaces the 173-4548 Valve Stem, the 123-3967 Deflector Ring, and the 123-3968 Valve Seat. The stem assembly will no longer be serviced by individual components.
The new gas pressure regulator is effective with engines that are manufactured on 15October 2008.
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| Illustration 1 | g01676780 |
(1) 335-5764 Gas Pressure Regulator (2) 334-8409 Stem As | |