Saw these on ebay for L-Series. A pair from dealer around $190 retail

 

There is no retail price, the part is obsolete.

It's been obsolete for so long, that even Ford's dealer website has no MSRP or dealer net prices listed.

 

Bill,
Thanks for info. My memory can be crazy. It must be trico that has arms but very expensive. I have NOS arms on mine and wanted to pass these along.
Best Wishes, Dennis......

 

I found the Trico link that has look-up for Trico heavy truck arms and blades part numbers:
Online Catalogs - Replacement windshield wiper blades | Trico Products

 

20 Ford Dealers (including two in OH) and 2 obsolete parts vendors have DOHZ17526A in stock. I can list the sources if interested.

Since the part is obsolete, the dealers are STUCK with it. Obsolete parts cannot be returned to Ford.

This means you may be able to buy the part at dealer net cost...whatever that was.

 

1970-1980 "Louisville" (L and LN) Trico part numbers from 1980 Trico Heavy-Duty Parts Catalog, useful if buying older parts from eBay or other:

Blade: 90930-147TM (18" For Ford Louisville only)
Refill: RF-218 (original blade doesn't taker refills, this refill is only for replacement blade)
Arm: 87875-9TM

New part numbers:

Type Part Number
SILVER BLADE 63-181
TRICO REFILL 71-180
ANCO REFILL 70-180
WIPER ARM 74-302