5550102451 Nozzle Holder with Nozzle. Listed in MTU 396 catalog references; confirm installation and current availability before ordering.
Check 5550102451 availability: Start with 5550102451 and the quantity. Add an engine serial number or a photo of the old Nozzle Holder with Nozzle if available; we will follow up on any missing details.
5550102451 Specification
About 5550102451 - Nozzle Holder with Nozzle
Published catalog details are identification references. They do not establish current stock, supplied condition, or confirmed fitment for your engine.
5550102451 is a nozzle holder with nozzle catalogued for MTU 396 engines. The catalog unit weight is 0.662 kg, which we use to estimate freight before quoting.
Technical Notes: Fuel system
The fuel system meters and delivers fuel at the pressure and timing the combustion process needs. Small wear in injectors, pumps, or valves shows up as higher fuel consumption, smoke, uneven cylinder temperatures, or rough running long before a complete failure.
Series 396 engines use conventional pump-and-nozzle injection rather than common rail. Injection pump and nozzle-holder references vary between ratings and older engines may carry superseded numbers.
When This Type of Part Is Usually Replaced
- exhaust temperatures differ noticeably between cylinders
- black smoke, hard starting, or knocking points to injection problems
- fuel leaks appear at high-pressure lines, unions, or pump seals
Checks Before Ordering
- Check the maintenance documentation on reusing high-pressure lines; deformed sealing cones on refitted lines are a common leak source
- Injectors should be ordered with the correct seals and copper rings for the cylinder head
- Exchange (EX-prefixed) injectors and pumps are a practical option when new units have long lead times
Engine Catalog References
5550102451 is listed for 8 engine models in the catalog references. The specification table decodes each model code from the fitment list; it does not confirm every installation.
| Model | Cylinders | Arrangement | Application | Group / build |
|---|---|---|---|---|
| 12V 396 TC54 | 12 | V | marine | build 4 |
| 12V 396 TC64 | 12 | V | marine | build 4 |
| 12V 396 TE64 | 12 | V | marine | build 4 |
| 12V 396 TE74 | 12 | V | marine | build 4 |
| 12V 396 TE74L | 12 | V | marine | build 4 |
| 12V 396 TE84 | 12 | V | — | build 4 |
| 12V 396 TE94 | 12 | V | marine | build 4 |
| 12V 396 TB94 | 12 | V | marine | build 4 |
How Each Model Code Reads
- 12V 396 TC54: 12 cylinders in V arrangement, Series 396, turbocharged, charge-air code TC, application group 5 (marine), build 4
- 12V 396 TC64: 12 cylinders in V arrangement, Series 396, turbocharged, charge-air code TC, application group 6 (marine), build 4
- 12V 396 TE64: 12 cylinders in V arrangement, Series 396, turbocharged, charge-air code TE, application group 6 (marine), build 4
- 12V 396 TE74: 12 cylinders in V arrangement, Series 396, turbocharged, charge-air code TE, application group 7 (marine), build 4
- 12V 396 TE74L: 12 cylinders in V arrangement, Series 396, turbocharged, charge-air code TE, application group 7 (marine), build 4, increased rating (L)
- 12V 396 TE84: 12 cylinders in V arrangement, Series 396, turbocharged, charge-air code TE, application group 8, build 4
- 12V 396 TE94: 12 cylinders in V arrangement, Series 396, turbocharged, charge-air code TE, application group 9 (marine), build 4
- 12V 396 TB94: 12 cylinders in V arrangement, Series 396, turbocharged, charge-air code TB, application group 9 (marine), build 4
Full parts list for this model family: MTU 12V 396 TB94 to TE94 Parts List
Engine-series references do not confirm every installation. Final fitment of 5550102451 depends on the full engine serial number and assembly position.
Usually Ordered with Nozzle Holder with Nozzle
Injectors are refitted with new sealing rings, and the high-pressure connection is checked at the same time. These MTU 396 references are commonly checked in the same job; each still needs its own fitment check.
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 |
|---|---|
| 0432231696 | Reference only; direction unconfirmed |
Common Applications
- Marine diesel engines
- Power generation sets
- Rail traction engines
- Industrial equipment
Information to Send for Quotation
- Part number: 5550102451
- 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.
Verification Notes
- For 5550102451, confirm engine model, serial number, required quantity, and destination before ordering.
- If 5550102451 markings or replacement status are unclear, send old-part photos or nameplate details.
Related MTU Parts
Similar to Nozzle Holder with Nozzle by engine series or category.
Other Service Parts in This Engine Series
Related MTU 396 service categories. Each item requires its own fitment check.