Product Condition Grades
Below is a general description of what the criteria is for our product condition grades. These are generalizations that are intended to give you an idea of the condition of the product at a quick glance. Because different parts degrade at different rates, there are variances in what the letters represent, please see the products description for details about the condition of any particular product.
A = Excellent / Above Average
B = Average / Some flaws / Good to Excellent Driver Quality
C = Obvious flaws / Poor to Average Driver Quality
D, E, F = Worse, Worser, Worsest
Plugs into firewall and connects original style oil pressure sending unit, water temperature sending unit and coil. Fits all 1971 Mercury Cougar and Ford Mustang with 429CJ engines.
Replaces Ford part number D1AZ-14289-D.
Check out the video below on our new gauge tester: