CONTROL GP-TRANSMISSION HYD 2072373 - Caterpillar

Engine:
3508B (S/N: S2A1-UP; S2B1-UP; LPD1-UP; S2D1-UP; S2E1-UP; S2F1-UP; BAG1-UP; 2BM1-UP; 3DM1-UP; 7SM1-UP; 5PS1-UP; 1TW1-UP; 3DW1-UP)
3508C (S/N: TTA1-UP; TTB1-UP)
Engine News SEBD9725, 26 August 2011, "A New Exhaust Cross-Over Bellows Is Used On Certain 3508B and 3508C Engines". The original article was revised to include more effectivity and a list of the exhaust manifold groups for the bellows.Description of Change: The new bellows assembly has an improved design. The connection between the flange and the tube is better able to withstand vibration than the original bellows.Adaptable To: The new 363-0394 Bellows As replaces the original 322-8956 Bellows As on the above engines. The 322-8956 Bellows As is not canceled.
Illustration 1 g02693539
(1) 363-0394 Bellows As The exterior of the new 363-0394 Bellows As is not different in appearance than the original 322-8956 Bellows As. Refer to Illustration 2.
Illustration 2 g02693541
(1) 363-0394 Bellows As (2) 322-8956 Bellows As The difference between the new bellows and the original bellows can be seen when the guards are removed. Refer to Illustration 3.
Illustration 3 g02693966
(1) 363-0394 Bellows As (2) 322-8956 Bellows As The new bellows are used in
123-0324 Exhaust Manifold Gp
9Y-4864 Exhaust Manifold Gp
334-7035 Exhaust Manifold Gp
334-7031 Exhaust Manifold Gp
342-9446 Exhaust Manifold Gp
305-6816 Exhaust Manifold Gp The new bellows are adaptable to the above engines back to first production.The new bellows are effective with the serial numbers that are listed in Table 1.
Table 1
Effectivity for the 363-0394 Bellows As    
3508B Engines    
S/N:5PS00793    
S/N:S2B00792    
S/N:BAG00025    
S/N:7SM01015    
S/N:2BM00198    
S/N:3DM00506    
S/N:3DW00187    
S/N:1TW00363    
S/N:S2B00205    
S/N:S2D00148    
S/N:S2E00381    
S/N:S2F00110    
S/N:LPD00013    
3508C Engines    
S/N:TTA00271    
S/N:TTB00465