PLATE-LOCK 9R6973 - Caterpillar

Marine Engine: 3412E MARINE (S/N: 9PW1-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: This kit does not contain rod bearings, main bearings, and thrust plates. Note: For assistance with technical questions, contact your local Cat dealer. Note: For more information, visit us at catmarinesupport.com.Note: For access to our website, you can scan the QR code below with a QR enabled device.
Illustration 1 g03319969
Reference Material
Table 1
Engine Model     Engine Arrangement     Engine Serial Number Range     Parts Book Media     Disassembly and Assembly Media    
3412E     176-5664     S/N:9PW1-UP     SEBP2866     SENR5031    
176-5733
183-3882
183-3885 Note: For ordering reference material contact your local Cat dealer.3412E 436-6847 Major Overhaul Kit Consist
Table 2
436-6847 Major Overhaul Kit Consist    
Gasket Kits    
Part Number     Part Name     Qty    
219-6544     After Cooler and Lines Gasket Kit     1    
419-8267     Rear Structure Gasket Kit     1    
203-7767     Single Fuel Injector Gasket Kit     12    
420-4961     Single Cylinder Head Gasket Kit     2    
420-0951     Central and Lower Structure Gasket Kit     1    
420-4426     Fuel System Gasket Kit     1    
420-0952     Front Structure Gasket Kit     1    
420-8612     Oil Cooler and Lines Gasket Kit     1    
6V-0237     Expansion Tank Gasket Kit     1    
Additional Parts Included in This Kit    
Part Number     Part Name     Qty    
0L-1352     Bolt     2    
0T-0573     Bolt     3    
1R-0749     Fuel Filter     2    
1R-1808     Engine Oil Filter     2    
2B-2695     Bolt     4    
2K-4973     Locknut     3    
2N-2766     Locknut     24    
3D-2824     O-Ring Seal     1    
3G-2292     Locking Bolt     5    
3S-1307     Bolt     4    
4H-9541     Gasket     1    
4L-8337     O-Ring Seal     2    
4M-1336     Ferrule     2