Part number 522-7740 (also commonly written as 5227740) is a hydraulic gear pump (or travel pump) primarily used in SEM (a Caterpillar brand) wheel loaders.
Core model: CBG2040 or CBGJ2040L
Cross-reference/alternative part numbers: W060600000, Z510260270, ZL50D.26.7
Specifications: Typically weighs approximately 17 kg;
External packaging dimensions are approximately 22 × 21 × 33 cm.
Primary material: High-strength alloy steel, designed to meet the operational demands of high-pressure hydraulic systems.
Applicability: This hydraulic pump is widely used in SEM 5-ton class wheel loaders; common compatible models include: SEM 650B / 650D, SEM 653D, SEM 655D, and SEM 660D.