Tie Rod is a direct replacement for B-1000-2 and 100017-1
Check Valve O-ring (-125) is a direct replacement for A-0275-125 and 400043-125. This is also included in the 015866-1
Check Valve Insert is a direct replacement for 004382-1 and 100034-1. This is also included in the 015866-1
High-pressure Cylinder is a direct replacement for 007038-3 and 100001-1
Check Valve Outlet Poppet is a direct replacement for 005917-1 and 100057-1. This is also included in the 015866-1