2003/10/20 Caterpillar


Improved Water Pump Seal {1361}

Usage:

793B 1HL
Excavator:
5130 (S/N: 5ZL1-UP)
5130B (S/N: 4CS1-UP)
5230 (S/N: 7LL1-UP)
5230B (S/N: 4HZ1-UP)
Off-Highway Truck/Tractor:
776B (S/N: 6JC1-UP)
776C (S/N: 2TK1-UP)
776D (S/N: 5ER1-UP; AFS1-UP)
777B (S/N: 4YC1-UP)
777C (S/N: 4XJ1-UP)
777D (S/N: AGC1-UP; 3PR1-UP; 2YW1-UP; AGY1-UP)
784B (S/N: 5RK1-UP)
784C (S/N: 2PZ1-UP)
785 (S/N: 8GB1-UP)
785B (S/N: 6HK1-UP)
785C (S/N: 1HW1-UP; APX1-UP; 5AZ1-UP)
789 (S/N: 9ZC1-UP)
789B (S/N: 7EK1-UP)
789C (S/N: 2BW1-UP)
793 (S/N: 3SJ1-UP)
793B (S/N: 1HL1-UP)
793C (S/N: CBR1-UP; 4AR1-UP; ATY1-UP; 4GZ1-UP)
797 (S/N: 5YW1-UP)
797B (S/N: JSM1-UP)
Track-Type Tractor:
D11N (S/N: 4HK1-UP; 74Z1-UP)
D11R (S/N: AAF1-UP; 8ZR1-UP; 9TR1-UP; 9XR1-UP; 7PZ1-UP)
Wheel Dozer:
854G (S/N: AMP1-UP; 1JW1-UP)
Wheel Loader:
992G (S/N: 7HR1-UP; ADZ1-UP)
994 (S/N: 9YF1-UP)
994D (S/N: 3TZ1-UP)

Description of Change: A new seal is now available for use in some water pumps for the above engines. The new O-ring seal will improve the sealing of the water pump.

Adaptable To: The 149-5462 O-Ring Seal is a direct replacement for the 1H-8278 O-Ring Seal. The change in the O-ring seal affects the following water pumps that are listed in Table 1. The new O-ring seal is effective with machine engines that are listed in Table 2.

Table 1
Water Pump Groups    
Part    
2W-9726 Water Pump Gp    
2W-9729 Water Pump Gp    
7E-0011 Water Pump Gp    
8N-8085 Water Pump Gp    
9Y-8909 Auxiliary Water Pump Gp    
111-4346 Water Pump Gp    
169-4691 Water Pump Gp    

Table 2
Engine Serial Number Effectivity    
S/N:99W3548-UP    
S/N:96Z938-UP    
S/N:54Z1205-UP    
S/N:7YG2212-UP    
S/N:4WJ1302-UP    
S/N:2PK1621-UP    
S/N:2GR4615-UP    
S/N:8BR861-UP    
S/N:7TR1345-UP    
S/N:8WM377-UP    



Illustration 1g01024106

(1) 149-5462 O-Ring Seal

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