Include Different Header For Each Custom Post Type

diff-header-per-custom-post-type.php

<?php
  $post_type = get_post_type( get_the_ID() );
  get_template_part( 'headers/' . $post_type, 'header' );
?>

<!-- 
     if your custom post type label is named 'support' for example
     this will include the contents of 'yourtheme/headers/support-header.php'
     Note: Fails silently so if file doesn't exist, nothing will be included.
-->