90508-ZW1-B00 Honda WASHER, PLAIN (18.5MM) (Honda Code 5743877).

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 more information, visit us at: electricpowersupport.cat.com.Note: For assistance with technical questions, contact your local Cat dealer.Reference Material
Table 1
Engine Model     Engine Serial Number Prefix     Package Serial Number Prefix     Engine Arrangements     Parts Book Media     Disassembly and Assembly Media    
3412     S/N:3FZ     S/N:4BZ     148-3592
148-3593     SEBP2785     RENR1389    
S/N:9EP 166-8583
166-8584 SEBP3105     RENR1389    
S/N:81Z S/N:81Z     7E-0147
7W-8652
7E-0148     SEBP2576     SENR2565    
S/N:38S N/A     119-0529
4N-2246
4W-1756     SEBP2746     SENR1084    Note: For ordering reference material, contact your local Cat dealer.3412 460-9788 Top End Overhaul Kit Consist
Table 2
460-9788 Top End Overhaul Kit Consist    
Gasket Kits    
Part Number     Part Name     Qty    
460-0780     Single Cylinder Head Gasket Kit     2    
142-1699     Water Pump Installation Gasket Kit     1    
459-9781     Oil Cooler and Lines Gasket Kit     1    
460-2324     After Cooler and Lines Gasket Kit     1    
Additional Parts Included in This Kit    
Part Number     Part Name     Qty    
1R-0749     Fuel Filter     2    
1R-1808     Engine Oil Filter     2    
1S-0004     O-Ring Seal     2    
2N-2766     Locknut     32    
3D-2824     O-Ring Seal     2    
3J-1907     O-Ring Seal     2    
4F-7390     O-Ring Seal     1    
4N-1104     Gasket     1    
4N-1868     Gasket     1    
5F-9144     O-Ring Seal     1    
5P-7128     High Temperature Bolt     8    
7B-4910     Gasket     1    
7M-7273     Gasket     2    
8L-2786     O-Ring Seal     4    
8L-3873     Gasket     2    
9X-7378     O-Ring Seal     3    
9Y-2988     Breather As     2    
106-1792     Taperlock Stud     24    
112-3540     O-Ring Seal     2    
114-8718     O-Ring Seal     12    
126-2702     Integral Seal     2    
198-6068     Integral Seal     2    
214-7566     O-Ring Seal     1    
214-7568     O-Ring Seal     11    
226-4753     Gasket     2    
248-5513     Temperature Regulator     2    
272-2583     O-Ring Seal     5    
305-6843     Guide Spring     24    3412 Engine Gasket Kit Locations
Illustration 1 g03707700
(1) Single Cylinder Head ( 460-0780 Gasket Kit ) (2) Water Pump Installation ( 142-1699 Gasket Kit ) (3) Oil Cooler and Lines ( 459-9781 Gasket Kit ) (4) Aftercooler and Lines Kit ( 460-2324 Gasket Kit )Gasket Kit Consists