You’ll need to identify which version of MAcBook Pro you have. As the parts are different between them!
'''Core Duo Early 2006:'''
* [https://www.thebookyard.com/product.php?cPath=39_65_133&products_id=4121|MacBook Pro 17" Speaker, left & mic (2.16GHz CD), Apple P/N 922-7508]
* [https://www.thebookyard.com/product.php?cPath=39_65_133&products_id=4119|MacBook Pro 17" Speaker, right (CD/C2D), Apple P/N 922-7509]
'''Core Duo Late 2006:'''
* [https://www.thebookyard.com/product.php?cPath=39_65_134&products_id=3222|MacBook Pro 17" Left speaker & mic (2.33GHz C2D), Apple P/N 922-7958''']'''
* [https://www.thebookyard.com/product.php?cPath=39_65_134&products_id=4119|MacBook Pro 17" Speaker, right (CD/C2D), Apple P/N 922-7509]
'''Santa Rosa 2007'''
* [https://www.thebookyard.com/product.php?cPath=39_65_135&products_id=5936|MacBook Pro 17" speaker, left (SR), Apple P/N 922-8108]
* [https://www.thebookyard.com/product.php?cPath=39_65_135&products_id=5935|MacBook Pro 17" Speaker, Right (SR), Apple P/N 922-8107]
'''Penryn 2008'''
* [https://www.thebookyard.com/product.php?cPath=39_65_136&products_id=9671|MacBook Pro 17" Speaker, left (08), Apple P/N 922-8393]
* [https://www.thebookyard.com/product.php?cPath=39_65_136&products_id=9672|MacBook Pro 17" Speaker, right (08), Apple P/N 922-8394]