I have a neighbor who has no internet and wanted some help finding some parts. He just retired from farming/trucking and is beginning to work on an Oliver / Hart-Par model 1828 built in approximately 1933 The serial number is 802177. The serial tag also says "Oliver Farm Equipment Company Hart-Par Works". I have seen the tractor a time or two and it isn't real big - maybe a 2 plow at most. It has a wide front end which I think was standard. He needs a manifold which he says is a casting that serves as both the hot and cold. Just wondered if there were any Oliver/Hart-Par junk yards or someone that has a pile of new old stock. Also, does this tractor share any engines with other models. I will post over on the Oliver site as well. Thanks.