BOLT-HEX HEAD 1523001 - Caterpillar

Marine EngineC32 MARINE (S/N: RSD1-UP; RPM1-UP; SDN1-UP)C32 MARINE GS (S/N: DSJ1-UP; RTK1-UP)Description Of Change: Improved risers are used on both the left side and the right side of the engine. The new risers utilize an improved flange that is clamped with three bolts.Note: The new risers require the use of new exhaust manifolds.Adaptable To: The new risers are adaptable back to first production on the serial numbers listed above.
Illustration 1 g03734037
(1) New riser flange that is clamped with three bolts.Refer to Table 1 for the new and former part numbers.
Table 1
New Riser Part Number Former Riser Part Number New Manifold Part Number Former Manifold Part Number Associated Prefix
435-4015 363-6040 441-0721 356-5929 S/N:RTK, RSD, SDN, DSJ (Left Side)
435-4017 363-6041 441-0722 356-5930 S/N:RTK, RSD, SDN, DSJ (Right Side)
435-4015 363-6040 442-0682 362-6055 S/N:RTK, RPM (Left Side)
435-4017 363-6041 442-0685 362-6056 S/N:RTK, RPM (Right Side) This change is effective for the serial numbers listed in Table 2.
Table 2
Effective Serial Numbers
S/N:DSJ129-UP
S/N:RPM279-UP
S/N:RSD348-UP
S/N:RTK184-UP
S/N:SDN721-UP