GF14.20-P-2020P Component Description For Exhaust Gas Recirculation Cooler

GF14.20-P-2020P Component Description For Exhaust Gas Recirculation Cooler
ENGINE 642 in MODEL 164.1 /8, 203.0 /2, 221.0 /1, 251.0 /1 up to Model Year 2008 /YoM 07
ENGINE 642 in MODEL 209.3 /4, 211.0 /2 /6, 219.3
ENGINE 642in MODEL 461.3, 463.3 up to 31.5.12





Shown on engine 642.9 except engine 642.884

101 Exhaust gas recirculation cooler

Location
The exhaust gas recirculation cooler is located below between the two cylinder heads.





Shown on engine 642.884

101 Exhaust gas recirculation cooler

Location
The exhaust gas recirculation cooler is installed on the right outside of the engine in horizontal position.

Task
The exhaust gas recirculation cooler lowers the temperature of the exhaust gases passed over the left exhaust gas recirculation positioner (Y27/9) (except model 461) or the exhaust gas recirculation positioner (Y27/9) (model 461). Temperature lowering produces a greater density of exhaust gases. This increases the exhaust gas recirculation rate and the nitrogen oxide (NOX) emission is lowered.

In model 211.022 with engine 642.920 and code (494) USA version, in model 211.022/222 with engine 642.920 and code (498) Japan version and in model 211.024 with engine 642.920, the exhaust gas recirculation cooler is equipped with 12 cooling ducts instead of 9 cooling ducts as previously. On model 164 and model 251 with code (494) USA version, the exhaust gas recirculation cooler is also equipped with 12 cooling ducts instead of 9 cooling ducts as previously.