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The new Dinosaur Electronics N991 circuit board replaces the following Norcold boards and has the outstanding 3 year warrenty that sets Dinosaur appart from those OEM boards!

618198, 618224, 618574, 618575, 618828, 619378

Possibly (unconfirmed) 625386, 625387

N991 for older 900, 9100 and early 1200's

Made in the USA!

3 Year Warrenty!

Instruction manual can be found over at www.RVRepairNOW.com in the library