How to replace the defrost heater in a Samsung refrigerator
certified tech group 51, on 23 June 2011 - 09:25 AM, said:

...bend the tabs a bit...

....grind the offending rivets off from both the old and new heaters...
.......

..the wire will need to be rerouted, I just removed the pin from the connector,
did not want to cut and reconnect the wire..
I got more pics. if'n you gets stuck
Source: Samsung Ref Model #RS265LABP




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I leave the pan attached just removing the 1 rivet on the side.
the pan stays on the heater....no wire modifications at all....