One New Aftermarket Replacement Hydraulic Lift Cylinder Seal Kit for Caterpillar (Cat) Motor Graders and Crawler Loaders

This hydraulic cylinder seal kit services lift, ripper, tilt, and stabilizer cylinders on a wide range of Caterpillar (Cat) construction equipment. The kit fits cylinders with a 2-inch rod and 4-inch bore and includes wiper, buffer, U-cup, and piston seals. Caterpillar OEM part number 7X2789 supersedes to 2406899 / 240-6899; both numbers refer to this same seal kit.

Note for 931B Lift Cylinder: Serial number restrictions apply. Verify your machine serial number before ordering to confirm fitment with the correct cylinder head.

Specifications

• Rod Diameter: 2.00 in.
• Bore Diameter: 4.00 in.
• Includes: Wiper seal, buffer seal, U-cup rod seal, and piston seal
• Compatible OEM Cylinder Numbers: 1U2291, 1U3124, 8J6893

Compatible Models

Caterpillar Motor Graders: 14G, 16G

Caterpillar Crawler Loaders / Track-Type Tractors: 931B, D3B

Additional Verified Caterpillar Fitment: 518, 815B, 816B, 920, 930, 931, 931C, 935B, 935C, 951, 953, 953B, D3, D3C, D4B, D4C, D4H, D5H, 613C II

Replaces Part Number(s):

2406899, 7X2789, 1857677

Aftermarket Interchange Numbers

240-6899, 240-6899-A, 2406899-A, 7X2789-A, 8T1370, 8T1370-A, BD505106, BD505106-A, HYI40-0133, MSS341613BO, CTC-7X2789

New aftermarket replacement part - not remanufactured, not used.