EX59403700072 Piston. Listed in MTU 4000 catalog references; confirm installation and current availability before ordering.
Check EX59403700072 availability: Start with EX59403700072 and the quantity. Add an engine serial number or a photo of the old Piston if available; we will follow up on any missing details.
EX59403700072 Specification
About EX59403700072 - Piston
Published catalog details are identification references. They do not establish current stock, supplied condition, or confirmed fitment for your engine.
EX59403700072 is a piston catalogued for MTU 4000 engines. It is the later number for X00028069, X59403700001, EX59403700001, X59403700017 and 4 more earlier references, so lists quoting those numbers are normally supplied as EX59403700072. The catalog unit weight is 10.869 kg, which we use to estimate freight before quoting.
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
EX59403700072 is listed for 12 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 4000 R43 | 8 | V | rail | subgroup 4, build 3 |
| 8V 4000 R43L | 8 | V | rail | subgroup 4, build 3 |
| 12V 4000 R43 | 12 | V | rail | subgroup 4, build 3 |
| 12V 4000 R43L | 12 | V | rail | subgroup 4, build 3 |
| 16V 4000 R43R | 16 | V | rail | subgroup 4, build 3 |
| 16V 4000 R43 | 16 | V | rail | subgroup 4, build 3 |
| 16V 4000 R43L | 16 | V | rail | subgroup 4, build 3 |
| 20V 4000 R43 | 20 | V | rail | subgroup 4, build 3 |
| 20V 4000 R43L | 20 | V | rail | subgroup 4, build 3 |
| 20V 4000 R63R | 20 | V | rail | subgroup 6, build 3 |
| 20V 4000 R63 | 20 | V | rail | subgroup 6, build 3 |
| 20V 4000 R63L | 20 | V | rail | subgroup 6, build 3 |
How Each Model Code Reads
- 8V 4000 R43: 8 cylinders in V arrangement, Series 4000, rail application (R), subgroup 4, build generation 3
- 8V 4000 R43L: 8 cylinders in V arrangement, Series 4000, rail application (R), subgroup 4, build generation 3, increased rating (L)
- 12V 4000 R43: 12 cylinders in V arrangement, Series 4000, rail application (R), subgroup 4, build generation 3
- 12V 4000 R43L: 12 cylinders in V arrangement, Series 4000, rail application (R), subgroup 4, build generation 3, increased rating (L)
- 16V 4000 R43R: 16 cylinders in V arrangement, Series 4000, rail application (R), subgroup 4, build generation 3, rating variant R
- 16V 4000 R43: 16 cylinders in V arrangement, Series 4000, rail application (R), subgroup 4, build generation 3
- 16V 4000 R43L: 16 cylinders in V arrangement, Series 4000, rail application (R), subgroup 4, build generation 3, increased rating (L)
- 20V 4000 R43: 20 cylinders in V arrangement, Series 4000, rail application (R), subgroup 4, build generation 3
- 20V 4000 R43L: 20 cylinders in V arrangement, Series 4000, rail application (R), subgroup 4, build generation 3, increased rating (L)
- 20V 4000 R63R: 20 cylinders in V arrangement, Series 4000, rail application (R), subgroup 6, build generation 3, rating variant R
- 20V 4000 R63: 20 cylinders in V arrangement, Series 4000, rail application (R), subgroup 6, build generation 3
- 20V 4000 R63L: 20 cylinders in V arrangement, Series 4000, rail application (R), subgroup 6, build generation 3, increased rating (L)
Full parts list for this model family: MTU 4000 R43 to R63R Parts List
Engine-series references do not confirm every installation. Final fitment of EX59403700072 depends on the full engine serial number and assembly position.
Usually Ordered with Piston
Pistons are fitted with new ring sets and checked against the liner and piston pin. These MTU 4000 references are commonly checked in the same job; each still needs its own fitment check.
- 0090374419 Keystone Compression Ring
- 0090375019 Taper Face Compression Ring
- 0120373618 Oil Control Ring
- 5110850960 Piston Ring
- 5240114210 Cylinder Liner Size 0
- X00027830 Cylinder Liner Size 0 C23
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 |
|---|---|
| X00028069 | Listed earlier number |
| X59403700001 | Listed earlier number |
| EX59403700001 | Listed earlier number |
| X59403700017 | Listed earlier number |
| EX59403700017 | Listed earlier number |
| X59403700046 | Listed earlier number |
| X59403700072 | Listed earlier number |
| EX59403700046 | Listed earlier number |
Common Applications
- Major overhaul
- In-frame rebuild
- Marine engine service
- Industrial engine repair
Information to Send for Quotation
- Part number: EX59403700072
- 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.
EX59403700072 FAQ
Is X00028069 replaced by EX59403700072?
Catalog history lists EX59403700072 as the later number for X00028069, X59403700001, EX59403700001, X59403700017, EX59403700017, X59403700046, X59403700072, EX59403700046. Orders quoting those numbers are normally supplied as EX59403700072; we confirm the change against the engine serial number, because a later number can come with related changes to mating parts.
Verification Notes
- For EX59403700072, confirm engine model, serial number, required quantity, and destination before ordering.
- If EX59403700072 markings or replacement status are unclear, send old-part photos or nameplate details.
Related MTU Parts
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Other Service Parts in This Engine Series
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