The Yanmar 4TNV88 is a 2.19 L 4-cylinder naturally aspirated engine rated at 1800 rpm. It powers generator sets from Himoinsa and Yanmar, including the HYW 20 M6, HYW 20 T6 and HYW-20 M6.
Also known as: 4TNV88, Yanmar 4TNV88
Part of the Yanmar 4TNV88 engine family — 4 variants share parts & fitment.
| Displacement | 2.19 L |
|---|---|
| Cylinders | 4 |
| Aspiration | naturally aspirated |
| Rated speed | 1800 rpm |
Shared across brands: Himoinsa, Yanmar
Compiled from service & troubleshooting documentation across every generator set that uses the Yanmar 4TNV88.
| Part # | Description | Category |
|---|---|---|
| 129100-77510 | GASKET | gasket |
| 129150-32020 | Gasket | gasket |
| 129150-35042 | Gasket | gasket |
| 129150-35111 | Gasket | gasket |
| 129150-77511 | Gasket | gasket |
| 129407-01340 | Cylinder Head Gasket | gasket |
| 129407-12110 | Gasket | gasket |
| 129550-13110 | Gasket | gasket |
| 129601-11310 | Gasket | gasket |
| 129930-13201 | Gasket, Silencer | gasket |
| 129008-77800 | Plug, Glow | glow_plug |
| 119940-59130 | Tube, Corrugated | hose |
| 129005-03080 | Pipe, Breather | hose |
| 120270-54410 | Washer | injector |
| 729595-51390 | FUEL INJECTION PUMP | injector |
| 729595-51391 | FUEL INJECTION PUMP | injector |
| 119005-35151 | Filter, D80X100L | oil_filter |
| 114250-39450 | TERMINAL | other_service |
| 122710-51050 | BEARING, ROLLER | other_service |
| 124060-01050 | PLUG, PT1/8 | other_service |
| 124160-01910 | PLUG, PT1/4 | other_service |
| 129001-01250 | PLUG, 50 | other_service |
| 129001-02931 | BEARING, MAIN | other_service |
| 129150-01200 | Cylinder Head Bolt | other_service |
| 129150-02020 | Bearing Cap Bolt | other_service |
| 129150-02871 | BEARING, 0.25 US | other_service |
| 129150-02931 | BEARING, THRUST | other_service |
| 129150-02941 | BEARING, THRUST 0.25 | other_service |
| 129470-51040 | CAMSHAFT | other_service |
| 129470-51060 | RETAINER | other_service |
| 129795-02412 | BUSH, CAMSHAFT | other_service |
| 171051-01921 | Plug | other_service |
| 26022-060162 | SCREW M 6X 16 | other_service |
| 27241-120000 | Plug 12 mm | other_service |
| 27241-300000 | Expansion Plug, 30 mm | other_service |
| 729602-01560 | BLOCK ASSY, CYLINDER | other_service |
| 129407-32000 | Oil Pump Assembly (Parts not available separately) | pump |
| 119609-32040 | O-Ring, P16 | seal |
| 119934-01800 | Seal, Oil | seal |
| 121400-11340 | Valve Stem Seal | seal |
| 121850-51960 | O-Ring | seal |
| 124460-11340 | SEAL, VALVE STEM | seal |
| 129508-33050 | O-Ring | seal |
| 129648-01780 | SEAL, OIL | seal |
| 22190-080002 | Seal Washer | seal |
| 22190-100002 | Seal Washer | seal |
| 22190-220002 | Seal Washer | seal |
| 24311-000120 | O-Ring | seal |
| 24311-000320 | O-RING, 1AP32.0 | seal |
| 24341-000240 | O-Ring | seal |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
Parts listed by aftermarket suppliers as fitting this engine — leads compiled from supplier catalogs; verify the exact part for your serial number.
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 Yanmar 4TNV88 has a displacement of 2.19 liters with 4 cylinders.
The Yanmar 4TNV88 powers 3 generator set(s), including Himoinsa HYW 20 M6, Himoinsa HYW 20 T6, Yanmar HYW-20 M6.
A commonly reported issue on generators using the Yanmar 4TNV88 is: Risk of severed digits or limbs.. Cause: ^ WARNING Generator can be started from a remote switch. Disconnect the negative (-) battery cable from generator battery before performing service or maintenance on generator set..