31146-PJ7-003 Honda SCREW (Honda Code 5891924).

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     174-4949     S/N:2HW     SEBP2734     SENR6564    
162-8846
133-9939
250-7624 S/N:LLC     SEBP4366     RENR9365    Note: For ordering reference material contact your local Cat dealer.3508 458-7815 Top End Overhaul Kit Consist
Table 2
458-7815 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    
458-0905     After Cooler and Lines Gasket Kit     1    
458-2919     Single Cylinder Head Gasket Kit     8    
Additional Parts Included in This Kit    
Part Number     Part Name     Qty    
1J-9671     O-Ring Seal     1    
1R-0726     Engine Oil Filter Element As     3    
1R-0756     Fuel Filter     5    
1S-6595     Oil Supply Gasket     2    
2N-2765     High Temperature Bolt     8    
2N-2766     Locknut     8    
3K-0360     O-Ring Seal     2    
3S-9643     Lip Type Seal     2    
4W-3027     Breather As     2    
4W-3100     Gasket     1    
5D-5957     O-Ring Seal     1    
6V-1454     O-Ring Seal     2    
6V-3907     O-Ring Seal     4    
6V-4589     O-Ring Seal     1    
6V-5048     O-Ring Seal     4    
6V-5064     O-Ring Seal     1    
6V-5103     O-Ring Seal     4    
6V-8001     O-Ring Seal     1    
6V-8397     O-Ring Seal     4    
7N-4782     Lifter Guide Spring     16    
7N-4927     Housing Cover Gasket     1    
033-6031     O-Ring Seal     2    
121-5736     Gasket     2    
154-6389     Button     24    
214-7566     O-Ring Seal     1    
214-7568     O-Ring Seal     1    
219-3240     Temperature Regulator     2    
238-5080     O-Ring Seal     1    
238-5081     O-Ring Seal     6    
248-5513     Temperature Regulator     4    
272-0760     Valve Cover Seal     4    Note: For assistance or technical questions contact your local Cat dealer.Note: Refer to Illustration 1 for location of gasket kits.3508 Engine Gasket Kit Locations
Illustration 1 g03732851
(1) After Cooler and Lines ( 458-0905 Gasket Kit ) (2) Single Cylinder Head ( 458-2919 Gasket Kit ) (3) Water Pump Installation ( 304-7216 Gasket Kit ) (4) Oil Cooler and Lines ( 457-5251 Gasket Kit )Gasket Kit Consists
Water Pump Installation (304-7216 Gasket Kit)