The MTU 12V 4000 G21R (FO) is a 57.2 L engine. It powers generator sets from MTU, including the BCMU 1250P-50 and BCMU 1375S-50.
Also known as: MTU 12V 4000 G21R (FO)
Part of the MTU 12V4000 engine family — 64 variants share parts & fitment.
| Displacement | 57.2 L |
|---|
| Part # | Description | Category |
|---|---|---|
| WM00076 | Air filter element | air_filter |
| 12V4000Gx3-07 | Battery | battery |
| 12V4000Gx3-06 | Belt | belt |
| 12V4000Gx3-02 | Engine oil filter | filter |
| 12V4000Gx3-03 | Fuel filter | filter |
| 12V4000Gx3-04 | Air filter | filter |
| 12V4000Gx3-01 | Engine oil | fluid |
| 12V4000Gx3-05 | Coolant | fluid |
| WM00086 | Easy-change fuel filter | fuel_filter |
| WM00067 | Oil filter element | oil_filter |
| 3082751 | Reman engine | other_service |
| 12V4000Gx3-08 | Spark plug | spark_plug |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
Other equipment known to use this engine, via filter-application cross-reference — useful for sourcing parts even when your exact machine isn't listed elsewhere on this page.
The MTU 12V 4000 G21R (FO) has a displacement of 57.2 liters.
The MTU 12V 4000 G21R (FO) powers 2 generator set(s), including MTU BCMU 1250P-50, MTU BCMU 1375S-50.