IBM - 40K7170 - Heatsink Copper Base x3455 40K7170 - IBM - Copper Base Heat Sink for System x3455 $95.39 $77.56
81Y7336 - IBM - Heatsink Copper (130W) for x3550 M4 81Y7336 - IBM - Heatsink Copper (130W) for x3550 M4 $145.84 $123.59
74Y6231 - IBM - Mt7895 Power7 Processor CPU Copper Heatsink 74Y6231 - IBM - Mt7895 Power7 Processor CPU Copper Heatsink $112.91 $91.80