135B09742 Conrod Bearing: MTU piston, liner, or ring set — size grade and engine series must match exactly.
Check 135B09742 availability: Start with 135B09742 and the quantity. Add an engine serial number or a photo of the old Conrod Bearing if available; we will follow up on any missing details.
135B09742 Specification
About 135B09742 - Conrod Bearing
Pistons, liners, and rings are size-graded components. Incorrect grade selection causes premature wear or seizure. We verify size code, engine series, and serial number before quotation. OEM and OEM-alternative grades available.
Technical Notes: Pistons and liners
Pistons, rings, and wet cylinder liners form the combustion chamber and carry the highest thermal loads in the engine. They are usually replaced during a major overhaul, and liner protrusion and size grades have to be checked so the cylinder head seals correctly.
When This Type of Part Is Usually Replaced
- oil consumption or blow-by rises beyond the expected level
- borescope inspection shows liner scoring, bore polishing, or ring damage
- liner cavitation is found on the coolant side
Checks Before Ordering
- Order liners with their sealing rings, and pistons with complete ring sets
- Size grades and weight classes must be matched within one engine
- Measurements from the inspection record decide which grade to order
Engine Catalog References
Verify by engine serial number
Engine-series references do not confirm every installation. Final fitment of 135B09742 depends on the full engine serial number and assembly position.
Cross-Reference and Superseded Part Numbers
135B09742 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
- Major overhaul
- In-frame rebuild
- Marine engine service
- Industrial engine repair
Information to Send for Quotation
- Part number: 135B09742
- 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 135B09742, confirm engine model, serial number, required quantity, and destination before ordering.
- If 135B09742 markings or replacement status are unclear, send old-part photos or nameplate details.
Related MTU Parts
Similar to Conrod Bearing by engine series or category.