7Y4650 Cylinder GP-Stick for Caterpillar Excavators

The 7Y4650 Cylinder GP-Stick is a hydraulic cylinder used on Caterpillar excavators. It is installed in the stick hydraulic system and is listed for the 320, 325, and 330 excavator model series shown below. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The component is identified as a stick cylinder assembly with a bolt-on head design. The available application information includes Caterpillar excavator models from the 320 L, 320-A L, 325 L, 325 LN, 325-A, 325-A FM L, 325-A L, 325-A LN, 325B L, and 330B ranges.

Fitment

• Caterpillar 320 L excavator
• Caterpillar 320-A L excavator
• Caterpillar 325 L excavator
• Caterpillar 325 LN excavator
• Caterpillar 325-A excavator
• Caterpillar 325-A FM L excavator
• Caterpillar 325-A L excavator
• Caterpillar 325-A LN excavator
• Caterpillar 325B L excavator
• Caterpillar 330B excavator

The cylinder is also listed for applications identified as Caterpillar 320L and 325B. Model designation, machine configuration, and serial-number range should be checked before installation where more than one cylinder specification was used within a model series.

Cross-reference numbers

• 7Y4650
• 7Y-4650
• CA7Y4650
• 1997416 — number stated in the application information for the 320L and 325B models

The number 7Y4650 is the SKU and primary identification number for this cylinder. The formats 7Y-4650 and CA7Y4650 are listed as corresponding reference numbers for the same application. Reference numbers should be compared with the number marked on the cylinder being removed and with the machine parts documentation before ordering or fitting.

Specifications

The listed dimensions are the reference specifications for the 7Y4650 stick cylinder: 150 mm bore, 105 mm rod diameter, 1567 mm stroke, and 2157 mm closed length. Both the cap-end and rod-eye pin sizes are specified as 80 mm. The stated assembly weight is 712 pounds, equivalent to approximately 322 kg.