GASKET 7H1796 - Caterpillar

Electric Power Generation:
3412 (S/N: 4BZ1-UP)
Engine:
3306B (S/N: EFA1-UP; B8D1-UP; 1RD1-UP; 8NS1-UP)
3408 (S/N: 67U1-UP; 78Z1-UP)
3408B (S/N: 67U1-UP; 78Z1-UP)
3408C (S/N: 67U1-UP; 78Z1-UP)
3412C (S/N: DJN1-UP; 9EP1-UP; 9BR1-UP; TFT1-UP; BCW1-UP; LRY1-UP; RTY1-UP)
3412E (S/N: TGC1-UP)
3516 (S/N: CMD1-UP; ZAL1-UP; YAS1-UP)
3516B (S/N: GZS1-UP)
C18 (S/N: TNA1-UP; GTB1-UP; T2R1-UP; GEX1-UP)
C9 (S/N: X3R1-UP; C9Y1-UP)
Generator Set:
3406C (S/N: ZKC1-UP; C2G1-UP; C5G1-UP; C8G1-UP; 2RJ1-UP; 9ES1-UP; C2Y1-UP)
C15 (S/N: C5L1-UP)
C18 (S/N: STM1-UP; GBM1-UP; CYN1-UP; GEN1-UP; MGS1-UP)
C27 (S/N: DWB1-UP)
C32 (S/N: RNE1-UP; RNX1-UP)
C9 (S/N: C9E1-UP; SJB1-UP; C9A1-UP)
Industrial Engine:
3406 (S/N: 6TB1-UP)
3406C (S/N: 3ER1-UP; 4GW1-UP)
3408C (S/N: 9ER1-UP)
Marine Engine:
C18 (S/N: WKB1-UP; PLE1-UP; CKH1-UP; C1J1-UP; JHL1-UP; DTP1-UP; GES1-UP; KJT1-UP; J2K1-UP; T2P1-UP)
C32 (S/N: RND1-UP; RNY1-UP; RNF1-UP)
Power Module:
PM3456 (S/N: B3G1-UP)
Description of Change: The alternate pressure gauge is filled with silicon to dampen the vibration of the needle inside the pressure gauge.Since the alternate 190-6637 Pressure Gauge has a 1/4 inch thread size and the previous gauge has a 1/8 inch thread size, the mating fitting will also require change as shown in the Table 1.An alternate course of action is to replace the gauge and fittings with a 5M-6214 Pipe Plug (9/16 inch thread) or a 9S-4182 O-Ring Plug (7/16 inch thread).Adaptable To: The alternate 190-6637 Pressure Gauge is adaptable to the above engines back to first production.The alternate 190-6637 Pressure Gauge replaces the former 266-0889 Pressure Gauge and the 295-0758 Pressure Gauge.
Table 1
   
Model    As-Shipped    Field Retrofit    
C9 Electric Power     255-3335 Fuel Filter Gp     5P-3501 Adapter    
C15 Electric Power     6N-8878 Fuel Pressure Gauge Gp     260-4057 Elbow    
C27 Electric Power     299-6233 Fuel Pressure Gauge Gp     7J-8611 Pipe Elbow
5P-2937 O-Ring Adapter    
3306, 3408 Electric Power     1W-6401 Fuel Pressure Gauge Gp
108-5216 Fuel Pressure Gauge Gp     106-2105 Elbow    
3408 Electric Power     6N-8878 Fuel Pressure Gauge Gp     260-4057 Elbow    
3406 Electric Power     371-0645 Fuel Pressure Gauge Gp     260-4057 Elbow    
3412 Electric Power     6N-8878 Fuel Pressure Gauge Gp     260-4057 Elbow    
3456 Electric Power     159-7324 Fuel Priming and Secondary Filter Pump Gp     106-2105 Elbow    
3516 Electric Power     6N-8878 Fuel Pressure Gauge Gp     260-4057 Elbow    
C9, C32 Marine     371-0645 Fuel Pressure Gauge Gp
379-9741 Fuel Pressure Gauge Gp     260-4057 Elbow    
C18 Marine     239-2340 Fuel Filter Gp
394-8567 Fuel Pressure Gauge Gp     5P-2937 O-Ring Adapter    
C32 Marine     294-3315 Fuel Filter Gp
294-3316 Fuel Priming Pump and Primary Filter Gp
379-9741 Fuel Pressure Gauge Gp     5P-2937 O-Ring Adapter