While some of the parts we have grease fittings other parts come factory sealed, this does not affect the performance or quality of the parts. Due to the amount of sales we cannot guarantee which type you will receive. If you would prefer a specific type please leave a message under the "message to seller" option when checking out. If we have the part available with the option you request it will be sent out that way. If not the part will be sent as we have it available.