0049976548 O-Ring. Listed in MTU 183 catalog references; confirm installation and current availability before ordering.
Check 0049976548 availability: Start with 0049976548 and the quantity. Add an engine serial number or a photo of the old O-Ring if available; we will follow up on any missing details.
0049976548 Specification
About 0049976548 - O-Ring
Published catalog details are identification references. They do not establish current stock, supplied condition, or confirmed fitment for your engine.
0049976548 is an O-ring catalogued for MTU 183 engines. The catalog unit weight is 0.001 kg, which we use to estimate freight before quoting.
Technical Notes: Gaskets and seals
Gaskets, O-rings, and sealing rings keep oil, coolant, fuel, charge air, and exhaust gas in their own circuits. On high-speed MTU engines they work against high combustion pressures and frequent thermal cycling, so a seal that looks intact can still have lost its elasticity or set to the shape of the old joint.
When This Type of Part Is Usually Replaced
- a joint has been opened for inspection or repair, even if the old seal looks usable
- oil or coolant weeping appears at a cover, pipe flange, or housing
- a coolant test shows oil contamination or combustion gas in the cooling system
Checks Before Ordering
- Material matters: fuel-system and coolant-system O-rings of the same size can use different elastomers
- Superseded gasket numbers often reflect a material or thickness change, so mixed old and new gaskets on one joint should be avoided
- Order the complete set for a joint rather than single pieces when the cover or head comes off
Engine Catalog References
0049976548 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 |
|---|---|---|---|---|
| 8V 183 TE52 | 8 | V | marine | build 2 |
| 8V 183 AA51 | 8 | V | marine | build 1 |
| 6R 183 TD13H | 6 | In-line | — | build 3 |
| 12V 183 TE93 | 12 | V | marine | build 3 |
| 12V 183 TE52 | 12 | V | marine | build 2 |
| 12V 183 TD13 | 12 | V | — | build 3 |
| 12V 183 TB32 | 12 | V | generator sets | build 2 |
| 12V 183 TA12 | 12 | V | — | build 2 |
How Each Model Code Reads
- 8V 183 TE52: 8 cylinders in V arrangement, Series 183, turbocharged, charge-air code TE, application group 5 (marine), build 2
- 8V 183 AA51: 8 cylinders in V arrangement, Series 183, charging and cooling code AA, application group 5 (marine), build 1
- 6R 183 TD13H: 6 cylinders in line, Series 183, turbocharged, charge-air code TD, application group 1, build 3, rating variant H
- 12V 183 TE93: 12 cylinders in V arrangement, Series 183, turbocharged, charge-air code TE, application group 9 (marine), build 3
- 12V 183 TE52: 12 cylinders in V arrangement, Series 183, turbocharged, charge-air code TE, application group 5 (marine), build 2
- 12V 183 TD13: 12 cylinders in V arrangement, Series 183, turbocharged, charge-air code TD, application group 1, build 3
- 12V 183 TB32: 12 cylinders in V arrangement, Series 183, turbocharged, charge-air code TB, application group 3 (generator sets), build 2
- 12V 183 TA12: 12 cylinders in V arrangement, Series 183, turbocharged, charge-air code TA, application group 1, build 2
Full parts list for this model family: MTU 183 AA51 to TE93 Parts List
Engine-series references do not confirm every installation. Final fitment of 0049976548 depends on the full engine serial number and assembly position.
Cross-Reference and Superseded Part Numbers
0049976548 has no public alternative number listed in our current data. We still check old-part photos, engine serial number, and catalog position for supersession before quotation.
Common Applications
- Overhaul kits
- Marine service
- Industrial maintenance
- Generator repair
Information to Send for Quotation
- Part number: 0049976548
- 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 0049976548, confirm engine model, serial number, required quantity, and destination before ordering.
- If 0049976548 markings or replacement status are unclear, send old-part photos or nameplate details.
Related MTU Parts
Similar to O-Ring by engine series or category.
Other Service Parts in This Engine Series
Related MTU 183 service categories. Each item requires its own fitment check.