2000/03/20 Caterpillar


Improved Exhaust Manifolds {1059}

Usage:

631E 1AB
Machine Engines:
  • 3408E
  • 3412E
  • Description of Change: The exhaust manifolds for 3408E and 3412E Machine Engines have been redesigned in order to provide improved reliability.

    Adaptable To: The changes to the exhaust manifold groups are detailed in Table 1. These changes are adaptable to all earlier 3408E and 3412E Machine Engines. Tables 2 and 3 show a breakdown of the parts within each of the new exhaust manifold groups, as these parts are not serviced at the group level.

    Table 1
    Changes to Exhaust Manifold Groups    
    Engine     Type of New Manifold     Machine Application     Former Group     New Group    
    3408E (S/N: 99C06194-UP)     Piston Ring     834B (PIN: 7BR)     126-7289     179-7022    
    836 (PIN: 7FR)
    D9R (PIN: 7TL) 125-3715     179-7023    
    D9R (PIN: 8BL)
    988F (PIN: 2ZR)
    631E (PIN: 1AB)
    637E (PIN: 1FB)
    657E (PIN: 7KR)
    657E (PIN: 6PR)
    633E (PIN: 2PS)
    3408E (S/N: 99C05437-UP)     Bellows     PM565B (PIN: 8GS)     126-7289     166-0164    
    769D (PIN: 5SS)
    771D (PIN: 6YS)
    69D (PIN: 9XS)
    3412E (S/N: 80M03514-UP)     Piston Ring     D10R (PIN: 3KR)     127-5134     179-7024    
    24H (PIN: 7KK)
    651E (PIN: 4YR)
    657E (PIN: 6TR)
    657E (PIN: 5YR)
    773D (PIN: 7FZ) 129-6834     179-7025    
    990 (PIN: 4FR) 108-4740     179-7026    
    5110B (PIN: AAA)
    844 (PIN: 2KZ)
    3412E (S/N: 80M02658-UP)     Bellows     773D (PIN: 7CS)     129-6834     164-4603    
    775D (PIN: 8AS)

    Table 2
    3408E
    Parts List
    New Exhaust Manifold Groups    
    Part Description     179-7022 Exhaust Manifold Group (Piston Ring)     179-7023 Exhaust Manifold Group (Piston Ring)     166-0164 Exhaust Manifold Group (Bellows)    
    2N-2766 Locknut     16     16     20    
    2N-6319 Bolt     -     -     4    
    2W-9779 Band Clamp     -     -     4    
    5M-2894 Washer     16     16     16    
    7L-8055 Bellows     -     -     2    
    100-7401 Exhaust Seal Assembly     4     4     -    
    107-8112 Exhaust Manifold     2     -     -    
    108-3612 Spacer     16     16     16    
    112-7750 Exhaust Manifold     -     1     -    
    112-7751 Exhaust Manifold     -     1     -    
    129-9452 Exhaust Manifold Gasket     8     8     8    
    163-3103 Exhaust Manifold     2     2     -    
    163-4109 Exhaust Manifold     -     -     2    
    165-4267 Exhaust Manifold     -     -     2    

    Table 3
    3412E
    Parts List
    New Exhaust Manifold Groups    
    Part Description     179-7024 Exhaust Manifold Group (Piston Ring)     179-7025 Exhaust Manifold Group (Piston Ring)     179-7026 Exhaust Manifold Group (Piston Ring)     164-4603 Exhaust Manifold Group (Bellows)    
    2N-2766 Locknut     24     24     24     32    
    2N-6319 Bolt     -     -     -     8    
    2W-4474 Bracket     -     2     -     2    
    2W-9779 Band Clamp     -     -     -     8    
    5B-7890 Pipe Plug     -     4     4     4    
    5M-2894 Washer     24     24     24     24    
    6B-2882 Spacer     -     4     -     4    
    7L-8055 Bellows     -     -     -     4    
    7W-8792 Exhaust Manifold     -     1     -     -    
    100-7401 Exhaust Seal Assembly     8     8     8     -    
    108-3612 Spacer     24     24     24     20    
    112-7750 Exhaust Manifold     1     -     -     -    
    112-7751 Exhaust Manifold     1     -     -     -    
    112-8247 Exhaust Manifold     -     -     1     -    
    112-8248 Exhaust Manifold     -     1     1     -    
    114-9223 Spacer     -     4     -     4    
    129-9452 Exhaust Manifold Gasket     12     12     12     12    
    163-3103 Exhaust Manifold     2     4     4     -    
    163-3104 Exhaust Manifold     2     -     -     -    
    163-4109 Exhaust Manifold     -     -     -     4    
    163-4167 Exhaust Manifold     -     -     -     1    
    163-5514 Exhaust Manifold     -     -     -     1    

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