Find replacement ratchets, ratchet bushes and related service components for specified hydraulic torque wrench assemblies. These listings supply service parts rather than complete wrench systems.
Identify the assembly and fastener opening
Match the wrench or cassette family, frame size, complete component number and the required inch or metric opening. A compatible hex dimension alone does not confirm the internal component fits the assembly.
Use the service drawing to confirm the component's position and revision. For complete interchangeable heads, browse torque wrench cassettes; for equipment, use torque wrenches and accessories.
Identify the drive and cassette as separate assemblies
A low-profile wrench system can have a drive-unit reference and a separate cassette reference. Record the assembly being serviced before selecting a part. Ratchets, drive components and seals must be identified from the drawing for that assembly and version.
What to provide for a bolting-tool parts lookup
- Manufacturer and full drive-unit model.
- Cassette model where the fault concerns that assembly.
- Serial, production or revision identification available on the tool.
- Repair-sheet figure and callout, or clear photographs of the markings.
- Required quantity and any documented kit or supersession reference.
For a bolting fleet, keep repair and calibration records tied to the individual tool. Replacing a mechanical or sealing component does not establish the tool's output accuracy or readiness for its next specified torque job.
Will a ratchet for one hex size fit the entire cassette family?
Only the documented parts application establishes fit. Use the exact cassette and service reference rather than the family name alone.
Is a replacement cassette the same purchase as an internal repair part?
No. A complete cassette has a different scope from a ratchet or other internal component. Compare the listed assembly contents.
Does a repair require a calibration check?
Follow the manufacturer's service and return-to-use requirements and the procedure governing the bolting work. A new part is not itself a calibration record.
For complete replacement tools, compare torque wrenches and accessories using the required torque range and working clearance.
