5240303917 Piston Assembly. Request a part-number and engine-serial check before quotation.
Check 5240303917 availability: Start with 5240303917 and the quantity. Add an engine serial number or a photo of the old Piston Assembly if available; we will follow up on any missing details.
5240303917 Specification
About 5240303917 - Piston Assembly
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
MTU 4000; final fitment is confirmed by engine serial number and parts-catalog position.
Engine-series references do not confirm every installation. Final fitment of 5240303917 depends on the full engine serial number and assembly position.
Common Replacement Scenarios
This part is commonly replaced when:
- compression loss, liner scoring, high blow-by, or oil consumption is reported
- size grade and matched cylinder components must be confirmed for the overhaul scope
- a major overhaul list needs piston, ring, liner, and bearing references checked together
Cross-Reference and Superseded Part Numbers
5240303917 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
- Exact part number: 5240303917
- Part name or assembly position: Piston Assembly
- Engine model / series: MTU 4000
- 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 5240303917, 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.
5240303917 FAQ
Does 5240303917 fit MTU 4000?
5240303917 Piston Assembly is checked against MTU 4000. Final fitment depends on the engine serial number, rating, and installation position.
What information is needed to quote 5240303917?
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 5240303917?
5240303917 is checked for supersession before quote. If there is a newer or reman route, we confirm it with the engine serial number and old-part photo.
When is 5240303917 usually replaced?
compression loss, liner scoring, high blow-by, or oil consumption is reported; size grade and matched cylinder components must be confirmed for the overhaul scope; a major overhaul list needs piston, ring, liner, and bearing references checked together.
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.
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