ADAPTER 4N4057 - Caterpillar

Engine:
G3516H (S/N: GLM1-UP; GLN1-UP)
G3520H (S/N: GFP1-UP; GFR1-UP)
Description of Change: The new prelubrication oil pump has a cast housing pump that is resistant to vibration fatigue for a longer service life.Adaptable To: The 456-4876 Prelubrication Oil Pump Gp is a direct replacement for the former 348-8398 Prelubrication Oil Pump Gp .The new prelubrication oil pump is adaptable to the above engines back to first production.ReferenceSpecial Instruction, REHS9705, "Installation Procedure for the Prelubrication Oil Pump on Certain G3500 Engines" for installation instructions.The parts required to install the prelubrication oil pump are listed in Table 1.
Table 1
Part Number    Description    Qty    
2B-0941     Spacer     4    
6V-8801     Nut     4    
8T-4896     Hard Washer     8    
8T-9101     Bolt     4    
8T-9377     Bolt     4    
308-3015     Hose As     1    
419-0732     Hose As     1    
456-4876     Prelubrication Oil Pump Gp     1    This change is effective with the serial numbers listed in Table 2.
Table 2
Effective Serial Numbers    
S/N:GLM00157-UP    
S/N:GLN00127-UP    
S/N:GFP00118-UP    
S/N:GFR00128-UP