GASKET 1H7666 - Caterpillar

Engine:
3516B (S/N: S2X209-UP; S2T101-UP; 4BW590-UP)
An improved rear gear group is now available for applications that use reverse engine rotation. The new 271-5800 Conversion Arrangement utilizes opposite helix gears which will load the gears and camshaft retainers for reverse rotation engines in the same direction of thrust as standard rotation engines.The camshaft retainers are also improved. The camshaft retainers now include grooves and ramps in order to improve lubrication.Table 1 lists the new parts in the 271-5800 Conversion Arrangement.
Table 1
Parts List    
Qty     Part Number     Description    
4     1A-2029     Bolt    
2     117-9308     Plate    
2     128-5993     Thrust Washer    
1     113-4649     Ring (1)    
1     261-3133     Cluster Gear (1)    
2     261-3137     Camshaft Gear (1)    
1     261-3139     Cluster Idler Gear (1)    
1     261-3140     Camshaft Gear (1)    
1     261-3141     Crankshaft Gear (1)    
( 1 ) Part of the 261-3132 Rear Gear Gp