IP 27 Companion Way Sliding Hatch Track

My IP 27 track for the sliding companion way hatch just cracked. Hey...it's 32 years old! Has anyone replaced this piece. It looks like plastic or nylon. Nothing looks like it in my research so far.
Thanks...

Starboard, an expensive HDPE.
www.eplastics.com/sheets/hdpe/seaboard-starboard

These are available from the factory store. Requires one to square cut the old ones with a fine tooth hack saw as close to the sea hood as possible, remove the screws and use the old pieces as a pattern to cut and drill the new (blank) pieces to match the old ones.

HI, the material is a hard plastic known up here in BC as Starboard. Most industrial plastics suppliers would have it. Can be easily cut with a saw, drilled etc.