The bigger one is for the compressor, smaller one is for the fan motor.
IF the compressor run cap was only one that was bad, then it is all you need.
With that said, if I was replacing one, I would replace both at same time.
The two p/n's I gave you, the oval one is the OEM for your unit.
That is for compressor. IF you want it to be round, then the other p/n I gave is fine also.
Run Capacitor # 1499-4421 is for the fan motor.
So, if replacing both, select one of the first two for compressor and this one for fan motor.
OR............. Dual Run Capacitor # 1498-5401 is for BOTH the compressor and the fan motor.
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Be sure to run screwdriver shaft (while holding insulated handle) across the terminals and discharge the capacitors before removing or use a resistor to bleed them off.
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