Ron Torsch Farm Equipment Proofmeter Replaces part number C3NN17360N Fits Ford NAA,2000,4000 Proofmeter assembly, MPH. For tractors with 4-speed transmission, except utility. Tractors: NAA, 500, 600, 700, 800, 900, 2000, 4000, (1953 - 1964) Please look in our store to find other items you might need and save on shipping costs. We can combine shipping charges for most items we sell. Used parts are sold as is unless specified otherwise. All of our items are also available for local pickup at our place of business, Alpena, MI 49707. We reserve the right to change shipping carrier depending on current rates without notice. If you need a specific carrier please let us know at the time of sale.