5550101251 Oil Spray Nozzle. Listed in MTU 396 catalog references; confirm installation and current availability before ordering.
Check 5550101251 availability: Start with 5550101251 and the quantity. Add an engine serial number or a photo of the old Oil Spray Nozzle if available; we will follow up on any missing details.
5550101251 Specification
About 5550101251 - Oil Spray Nozzle
Published catalog details are identification references. They do not establish current stock, supplied condition, or confirmed fitment for your engine.
5550101251 is an oil spray nozzle catalogued for MTU 396 engines. The catalog unit weight is 0.564 kg, which we use to estimate freight before quoting.
Technical Notes: Lubrication
The lubrication system supplies oil to bearings, pistons, the valve train, and turbochargers, and on many engines also cools the pistons. Low oil pressure is one of the main protective shutdown triggers, so pumps, valves, and coolers in this circuit are critical to availability.
When This Type of Part Is Usually Replaced
- oil pressure drops at operating temperature compared with earlier readings
- oil analysis shows coolant, fuel dilution, or rising wear metals
- the oil cooler leaks internally or externally
Checks Before Ordering
- Use an oil of the category permitted for the engine and fuel in use
- Pressure-relief and regulating valves should be replaced with their springs and seals
- After a bearing failure, clean or replace the oil cooler to remove debris
Engine Catalog References
5550101251 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 5550101251 depends on the full engine serial number and assembly position.
Common Replacement Scenarios
This part is commonly replaced when:
- combustion quality, fuel delivery, compression, or exhaust temperature is outside normal range
- installation position and matched mating parts must be checked before replacement
- overhaul buyers need verified valve, nozzle, injector, or pump references before dispatch
Usually Ordered with Oil Spray 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 |
|---|---|
| 5500100651 | Reference only; direction unconfirmed |
| 5550100951 | Reference only; direction unconfirmed |
| 5500101451 | Reference only; direction unconfirmed |
Common Applications
- Marine engines
- Industrial engines
- Generator maintenance
Information to Send for Quotation
- Exact part number: 5550101251
- Part name or assembly position: Oil Spray Nozzle
- Engine model / series: MTU 396
- Engine serial number from nameplate
- Old-part photo showing number, connector, port, or size marking
- Required quantity and whether partial shipment is acceptable
- Destination country, delivery deadline, and preferred shipping method
The quotation confirms the offered part number, supply condition, price, lead time, and shipping options.
Ordering Notes
For 5550101251, send the engine model, serial number, quantity, old-part photo, and destination country. We will confirm whether the item is OEM, OEM-alternative, reman, or superseded before quotation.
5550101251 FAQ
Does 5550101251 fit MTU 396?
5550101251 Oil Spray Nozzle is checked against MTU 396. Final fitment depends on the engine serial number, rating, and installation position.
What information is needed to quote 5550101251?
Send the part number, engine model, engine serial number, old-part photo, quantity, destination country, and required delivery date. This lets us confirm stock route, packing, and shipping options.
Can you check alternatives or superseded numbers for 5550101251?
5550101251 may relate to 5500100651, 5550100951, 5500101451. Final replacement status is checked against the engine serial number before quote.
When is 5550101251 usually replaced?
combustion quality, fuel delivery, compression, or exhaust temperature is outside normal range; installation position and matched mating parts must be checked before replacement; overhaul buyers need verified valve, nozzle, injector, or pump references before dispatch.
Verification Notes
- Confirm engine model, serial number, required quantity, and destination before ordering.
- Send old part photos or nameplate details when markings or replacement status are unclear.
- Priority item: part number, supersession, and export packing details are checked before quote.
Related MTU Parts
Similar to Oil Spray 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.