S Sealing Ring: MTU gasket or seal — cylinder head, exhaust, oil, water. Correct material grade confirmed before quotation.
Check S availability: Start with S and the quantity. Add an engine serial number or a photo of the old Sealing Ring if available; we will follow up on any missing details.
S Specification
About S - Sealing Ring
Gaskets and seals are application-specific — material grade, thickness, and shape all vary by engine installation. We confirm part number against engine series and recommend full gasket kits for overhaul projects.
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- Superseded gasket numbers often reflect a material or thickness change, so mixed old and new gaskets on one joint should be avoided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
Verify by engine serial number
Engine-series references do not confirm every installation. Final fitment of S depends on the full engine serial number and assembly position.
Cross-Reference and Superseded Part Numbers
S 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: S
- 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 S, confirm engine model, serial number, required quantity, and destination before ordering.
- If S markings or replacement status are unclear, send old-part photos or nameplate details.
Related MTU Parts
Similar to Sealing Ring by engine series or category.