VALVE AS 1307257 - Caterpillar

Engines:
3508 (S/N: 3PS)
3508B (S/N: CBB; BAG; 2BM; 3DM; 7SM; 5PS; 1TW; 3DW)
3512 (S/N: 3RS)
3512B (S/N: BRC; 3KD; 2AF; 8DF; 7HM; 8EM; 4TN; 4DR; 1PW; 2GW; 3ZW; 4AW; 2EZ)
3516 (S/N: 3SS; 3XS)
3516B (S/N: 8KN; 2FW; 3CW)
Description of Change: A new hose assembly is used in water lines groups for the turbochargers on these engines. The new hose assembly is flexible and the new hose assembly has a cover that is braided from stainless steel. The new hose assembly and the associated hardware replace a former tube assembly. The new hose assembly is more resistant to damage that can be caused by vibration. The new hose assembly will help prevent the leakage of engine coolant.Adaptable To: The former 128-2856 Tube Assembly is cancelled. This change is effective with the engines that are listed in the table. Each former 128-2856 Tube Assembly is replaced by the components that follow:
One 188-5140 Hose Assembly
Five 3K-0360 O-Ring Seals
Two 6V-8397 O-Ring Seals
One 6V-8723 Elbow
One 8T-1683 Elbow
Illustration 1 g00824195
This illustration shows the TOP VIEW of a typical application with the new hose assembly. (A) Coolant Manifold (B) Bearing Housing of the turbocharger (1) 6V-8723 Elbow (2) 3K-0360 O-Ring Seal (3) 6V-8397 O-Ring Seal (4) 188-5140 Hose Assembly (5) 8T-1683 Elbow
Table 1
Effectivity Of The New 188-5140 Hose Assembly    
Engine
Model    Engine Serial Numbers    
3508 EUI     (S/N: 5PS271)    
3508B     (S/N: CBB125; BAG14; 2BM157; 3DM225; 7SM473; 3PS197; 1TW290; 3DW162)    
3512 EUI     (S/N: 3RS340)    
3512B     (S/N: BRC148; 3KD195; 2AF230; 8DF187; 7HM229; 8EM362; 4TN417; 4DR2; 1PW372; 2GW290; 3ZW221; 4AW502; 2EZ236)    
3516 EUI     (S/N: 3SS324; 3XS408)    
3516B     (S/N: 8KN424; 2FW228; 3CW244)