SHORT BLOCK 20R7831 - Caterpillar

Illustration 1 g06174598
General location of serial number and casting code locations.
(1) Foundry Code
(2) Date Code
(3) Serial Number
Illustration 2 g06174711
Proper way to interpret casting code.
(1) Foundry Code
(2) Date Code
(4) Year (2015)
(5) Month (January)
(6) Day (10)
Illustration 3 g06174715
Description of location and tooling for inspection.
If pump housing falls within suspect range, measure area denoted by “X”s to determine if casting meets specifications. Refer to Illustration 1.Casting wall thickness will be a minimum of 4.8 mm.Refer to Illustration 1 for the appropriate measuring device.
Table 1
Part Number
0R-8210 Engine Oil Pump Gp
116-1979 Oil Pump Body As
116-1980 Engine Oil Pump Gp
20R-1516 Engine Oil Pump Gp
379-3989 Engine Oil Pump Gp