This message was posted on behalf of Intel Corporation
Thank you for contacting Intel Communities.
The information about the cooling fan specifications is provided by the product manufacturer, in this case, Delta, Nidec or Foxconn, the are the suppliers of the cooling fans for the Intel® Core™ Processors.
The part number of the cooler is E97379-003 and works for all the 7th Generation Intel® Core™ i3, i5 & i7 Processors (not the K processors).
In case you want to get an aftermarket cooler, you can search by socket type (1151 socket).
I was able to find the product dimensions for the heatsink/fan in the following link:
Product Dimensions: 4.3 x 4.1 x 3 inches.
NOTE: This link is being offered for your convenience and should not be viewed as an endorsement by Intel of the content, products, or services offered there.
I hope this information helps.
Please don't hesitate in contacting us back if you need further assistance.