ADAPTER-PIPE 6K6967 - Caterpillar

Engine:
3512B (S/N: S2J1-UP)
Description of Change: The improved hardware provides a higher resistance to temperature. Also, the improved hardware provides a more rugged seal of the joint between the turbocharger and the exhaust manifold.Adaptable To: The improved hardware is a direct replacement for the existing hardware on the engine that is listed above. Refer to Illustration 1 and Table 1 for the parts lists and the part descriptions.
Illustration 1 g01922075
Location of improved hardware (1) 178-2439 Seal As (2) 298-6389 Spacer (3) 300-8579 Bolt (4) 284-0753 Washer (5) 310-2233 Flange Nut
Table 1
New Part Number     Former Part Number     Quantity     Description    
178-2439     121-5736     2     Seal As    
284-0753     5M-2894     8     Washer    
298-6389     -     8     Spacer    
300-8579     2N-2765     8     Bolt    
310-2233     2N-2766     8     Flange Nut    Use the following procedure in order to install the improved hardware.
Lubricate the threads and the bearing surfaces with 5P-3931 Anti-Seize Compound before assembly.
Align the joint between the turbocharger, the gasket, and the exhaust manifold in order to install the nuts and the bolts.
Tighten all of the nuts on the joint to a snug fit.
Tighten one nut to a torque of 54 5 N m (40 4 lb ft).
Tighten a diagonally opposed nut to a torque of 54 5 N m (40 4 lb ft).
Tighten the remaining two bolts to a torque of 54 5 N m (40 4 lb ft).
Repeat Steps 4, 5, and 6 in order to verify the torque.This change is effective for the serial numbers S2J714-UP.