Found this using google:

NAPA cross reference for 2806070 & 3462112


Fan Clutch - Thermostatic
Product Line: NAPA Temp Products
Part Number: TEM 271305
Price:
Price
Unit
:
:
33.99
Each

Warranty Limited Lifetime
Attributes Fan Clutch Bolt Circle Diameter : 1.39"
Fan Clutch Fan Mount Diameter : 2.62"
Fan Clutch Fan Mount Height : 1.36"
Fan Clutch Height : 3.09"
Fan Clutch Overall Diameter : 7.23"
Fan Clutch Pilot Diameter : .63"
Fan Clutch Rotation : Clockwise
Fan Clutch Style : 7" Regular Duty
Fan Clutch Type : Thermal



Also found this on eBay:
http://cgi.ebay.com/ebaymotors/71-Real-H...=item231400de4c

Ka-CHING! Looks very close to an "070" clutch. Possibly the 112 clutch superceded the 070 clutch.