SEAL 2J1826 - Caterpillar

Engine: 3508 (S/N: 68Z1-UP; 70Z1-UP)Introduction
This Special Instruction is intended to provide information on the Engine Overhaul Kit Consist and detailed information on specific parts that should be used based on engine arrangements.This Engine Overhaul Kit may contain extra parts and extra quantities due to the variety of engine arrangements assigned to a given kit. Refer to the corresponding Parts Manual or Disassembly and Assembly manual in Table 1.Note: This Kit may contain upgraded parts. These upgraded part numbers may be different than what you have in the parts manual or engine, but these parts have been technically reviewed for compatibility with your application. Note: This kit contains gasket kits and includes additional parts needed to perform an engine overhaul.Note: For assistance with technical questions, contact your local Cat dealer. Note: For more information, visit us at: catlanddrillingsupport.com.Reference Material
Table 1
Engine Model     Engine Arrangement     Engine Serial Number Prefix     Parts Book Media     Disassembly and Assembly Media    
3508     4W-0281     S/N:68Z     SEBP1575     SENR2355    
1W-4210
2W-8867 S/N:70Z     SEBP2207     SENR2370    
1W-4211 Note: For ordering reference material contact your local Cat dealer.3508 459-1187 Top End Overhaul Kit Consist
Table 2
459-1187 Top End Overhaul Kit Consist    
Gasket Kits    
Part Number     Part Name     Qty    
304-7216     Water Pump Installation Gasket Kit     1    
457-5251     Oil Cooler and Lines Gasket Kit     1    
458-3417     Single Cylinder Head Gasket Kit     8    
458-3967     Aftercooler and Lines Gasket Kit     1    
Additional Parts Included in This Kit    
Part Number     Part Name     Qty    
1R-0726     Engine Oil Filter Element As     3    
1R-0756     Fuel Filter     5    
1S-4810     Oil Drain Gasket     2    
1S-6595     Oil Supply Gasket     2    
2N-2765     High Temperature Bolt     8    
2N-2766     Locknut     8    
4W-3027     Breather As     1    
4W-3100     Gasket     1    
5D-5957     O-Ring Seal     3    
5P-4892     O-Ring Seal     4    
5P-9890     O-Ring Seal     2    
6V-3907     O-Ring Seal     4    
6V-4589     O-Ring Seal     1    
6V-8001     O-Ring Seal     1    
7N-4782     Lifter Guide Spring     24    
7N-4927     Housing Cover Gasket     1    
8F-8858     Valve     24    
033-6031     O-Ring Seal     1    
111-3820     Retaining Ring     2    
121-5736     Gasket     1    
214-7568     O-Ring Seal     2    
248-5513     Temperature Regulator     4    
272-0757     Valve Cover Seal     1    Note: