RETAINER 1046729 - Caterpillar

3304, 3306 - With Cylinder Block Spacer PlateThe 6N8124 Block Assembly and a 6N7727 Hardware Kit are needed for service of 3306 Engines with a spacer plate block. The 6N8127 Block Assembly and a 6N7725 Hardware Kit are needed for service of 3304 Engines with a spacer plate block. Use the procedure that follows to assemble the block to the correct engine arrangement.3304
If the former cylinder block has plugs in holes (A), install 7M4593 Plugs in the holes (A) of the new cylinder block. If the former cylinder block has orifices in holes (A), use orifice installation tool (1) to install 2S1541 Orifices in holes (A) of the new cylinder block.3306
(1) Look in the holes at each location (A) (crankshaft bearing bore) of the former cylinder block, to see if it has plugs (1) or orifices (2). If plugs were in the former cylinder block at location (A), install the 7M4593 Plugs (1) in the new cylinder block. If orifices were in the former cylinder block at location (A), use the orifice installation tool to install 2S1541 Orifices (2) in the new cylinder block.(2) Look at location (B) of the former cylinder block. Some engines have a 1S1768 Sleeve (3) and 4L3395 Dowel (4) at location (B), and other engines will have a 4B3938 Plug (5) and 2A3798 Dowels (6). Install the correct parts at location (B) of the new cylinder block, so it will be exactly the same as the former cylinder block