One New Aftermarket Replacement Standard Piston Fits Case/International Harvester and David Brown Tractors

This standard bore aftermarket piston is a direct replacement for the David Brown AD5/55T and AD6/55T diesel engine family used across a wide range of Fits Case, Fits International Harvester (IH), and David Brown tractors. Featuring a dish-top (F5) combustion chamber and Al Fin ring design with 4 rings, it is engineered for precise bore fit during engine rebuilds and overhauls.

Specifications

• Size: Standard (Std)
• Bore Diameter: 100.00 mm (3.937 in)
• Piston Length: 4.16 in (105.58 mm)
• Compression Height: 2.38 in (60.35 mm)
• Bowl Depth: 20.35 mm
• Chamber Diameter: 2.32 in (58.87 mm)
• Piston Pin Diameter: 31.75 mm (1.25 in)
• Number of Rings: 4
• Ring Type: Al Fin
• Crown Type: Dish Top
• Chamber Type: F5

Compatible Models

Fits Case/International Harvester: 1394, 1490, 1494, 1594, 1694

David Brown / Fits Case David Brown: 1390, 1410, 1412, 1490, 1690, 1690T (1690 Turbo)

Replaces Part Number(s):

K944573, K206954, K206954-A, PA771, PA772, B512657, K261072

Aftermarket Interchange Numbers

57507

New aftermarket replacement part - not remanufactured, not used.