C1AE6518A is also an engine Valve Keeper (or valve collet).

Key Details:

• Fitment: This is the standard valve keeper for a massive range of Ford, Fordson, and New Holland 3-cylinder and 4-cylinder diesel and gas tractors built from the 1960s through the 1990s.

• Common Models: It fits the Ford 1000 Series (2000, 3000, 4000, 5000, 7000), the 100 Series (2600, 3600, 4600), the 10 Series (2610, 3610, 4610), and all the way up through the 40 and 60 Series (e.g., 5640, 8160).

• OEM Replacements: If you are shopping for this, you will often see it listed under its newer replacement part numbers: 81804307, 81876796, 83946444, or F2NN6518AA. It also crosses over to John Deere part number T20077.