Check out these eBay listings; actuator motors as cheap as $20 for four.

http://www.ebay.com/bhp/lexus-door-lock-actuator-motor

 

Sweet thanks man for the link!!!! does it matter the length of them? Long shaft or short? I'm thinking buying these ones!

http://m.ebay.com/itm/111279971190

 

I think you want the short shaft (9.85 mm). But even if you get the long shaft (20 mm) and it's too long, they can be easily cut to whatever is the length of the motor you take out of the actuator. Use a Dremel-type tool.