11506101 Nut. Listed in MTU 4000 catalog references; confirm installation and current availability before ordering.
Check 11506101 availability: Start with 11506101 and the quantity. Add an engine serial number or a photo of the old Nut if available; we will follow up on any missing details.
11506101 Specification
About 11506101 - Nut
Published catalog details are identification references. They do not establish current stock, supplied condition, or confirmed fitment for your engine.
11506101 is a nut from the crankcase breather group of MTU 4000 engines. It is the later number for 5249900551, 11506101M, so lists quoting those numbers are normally supplied as 11506101. The catalog unit weight is 0.012 kg, which we use to estimate freight before quoting.
Technical Notes: Drive components
Gears, shafts, couplings, belts, fasteners, and locking parts transmit drive to pumps, camshafts, and auxiliaries and hold assemblies together. Many of these items are inexpensive but critical: a missing tab washer or a reused stretch bolt can cause a far larger failure.
When This Type of Part Is Usually Replaced
- locking elements such as tab washers or self-locking nuts have been removed
- gear teeth, splines, or keyways show wear or pitting
- belts show cracks, glazing, or incorrect tension after adjustment
Checks Before Ordering
- Use new fasteners where the maintenance documentation specifies single use
- Order belts as matched sets on multi-belt drives
- Check slotted nuts, washers, and pins together with the component they secure
Engine Catalog References
MTU 4000
Engine-series references do not confirm every installation. Final fitment of 11506101 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Cross-Reference and Superseded Part Numbers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 |
|---|---|
| 5249900551 | Listed earlier number |
| 11506101M | Listed earlier number |
Common Applications
- Engine assembly
- Marine propulsion
- Industrial drives
- Generator sets
Information to Send for Quotation
- Part number: 11506101
- 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.
11506101 FAQ
Is 5249900551 replaced by 11506101?
Catalog history lists 11506101 as the later number for 5249900551, 11506101M. Orders quoting those numbers are normally supplied as 11506101; we confirm the change against the engine serial number, because a later number can come with related changes to mating parts.
Verification Notes
- For 11506101, confirm engine model, serial number, required quantity, and destination before ordering.
- If 11506101 markings or replacement status are unclear, send old-part photos or nameplate details.
Related MTU Parts
Similar to Nut by engine series or category.
Other Service Parts in This Engine Series
Related MTU 4000 service categories. Each item requires its own fitment check.
Browse More MTU Parts
All MTU part numbers / MTU spare parts / MTU 4000 Series Overhaul Parts Guide / Check this part