F6781539 Hydraulic Pressure Spindle. Listed in Special tools catalog references; confirm installation and current availability before ordering.
Check F6781539 availability: Start with F6781539 and the quantity. Add an engine serial number or a photo of the old Hydraulic Pressure Spindle if available; we will follow up on any missing details.
F6781539 Specification
About F6781539 - Hydraulic Pressure Spindle
Published catalog details are identification references. They do not establish current stock, supplied condition, or confirmed fitment for your engine.
F6781539 is a hydraulic pressure spindle catalogued for Special tools engines. It is the later number for F6557164, so lists quoting that number are normally supplied as F6781539. The catalog unit weight is 7.080 kg, which we use to estimate freight before quoting.
Technical Notes: Tools and supplies
Special tools and assembly supplies — barring devices, setting mandrels, pullers, lifting brackets, gauges, and assembly compounds. These exist because the corresponding service operation cannot be done correctly with an improvised substitute: turning the engine to top dead centre with the barring device, setting injector height with the mandrel, pulling a sleeve without loading the housing, or recording compression with the press recorder. An improvised tool usually damages the very component it is meant to service.
When This Type of Part Is Usually Replaced
- a factory-specified service operation names the tool by its tool number
- an improvised tool has already marked or damaged a component
- the engine is being opened for a service the workshop has not done before
Checks Before Ordering
- Identify by the tool number (usually the F-prefix series), not by what the tool looks like
- Confirm which engine application the tool number covers — one tool family can serve several series
- Check for a superseded tool number before assuming the current one is unavailable
Engine Catalog References
MTU Specialized Tools
Engine-series references do not confirm every installation. Final fitment of F6781539 depends on the full engine serial number and assembly position.
Cross-Reference and Superseded Part Numbers
Catalog history distinguishes earlier and later numbers where documented. Reference-only entries do not establish replacement direction or interchangeability. Confirm the offered number against the engine serial number and installation.
| Part number | Catalog relationship |
|---|---|
| F6557164 | Listed earlier number |
Common Applications
- Marine service
- Industrial maintenance
- Power generation
- Rail traction
Information to Send for Quotation
- Part number: F6781539
- Engine model, rating, and serial number
- Nameplate photo and old part photo when available
- Quantity, destination country, and required delivery date
The quotation confirms the offered part number, supply condition, price, lead time, and shipping options.
F6781539 FAQ
Is F6557164 replaced by F6781539?
Catalog history lists F6781539 as the later number for F6557164. Orders quoting that number are normally supplied as F6781539; we confirm the change against the engine serial number, because a later number can come with related changes to mating parts.
Verification Notes
- For F6781539, confirm engine model, serial number, required quantity, and destination before ordering.
- If F6781539 markings or replacement status are unclear, send old-part photos or nameplate details.
Related MTU Parts
Similar to Hydraulic Pressure Spindle by engine series or category.