MYDA Turbocharger for Yanmar 4LHA-STE/STP & STZE/STZP – REC119175-18031

Recmar REC119175-18031 is a new aftermarket MYDA marine turbocharger for selected Yanmar 4LHA-STE, 4LHA-STP, 4LHA-STZE and 4LHA-STZP engines. It cross-references Yanmar turbocharger numbers 119175-18030 and 119175-18031.

Fitment first: Yanmar introduced 119175-18031 at defined serial-number change points. Check the complete engine model, engine serial number and the identification on the turbo currently fitted. Earlier engines can carry 119175-18030, while later engines are catalogued with 119175-18031.

Product specifications

Confirmed engine fitment

Earlier engines in these groups can show Yanmar reference 119175-18030. Recmar cross-references both 119175-18030 and 119175-18031, but the old turbo identification and installation arrangement must still be checked before ordering.

Replacement and cross-reference numbers

• Yanmar: 119175-18030, 119175-18031
• IHI family: MYDA, RHC61W
• IHI references: VA240090, VB240090, VC240090, VD240090
• Recmar: REC119175-18031

Reference numbers are supplied for identification only. This is a Recmar aftermarket product and is not supplied or manufactured by Yanmar or IHI.

What is supplied?

• 1 × new Recmar MYDA replacement turbocharger assembly

Not included: installation gasket, studs, nuts, oil pipes, hoses, mixing elbow and other ancillary components. The related gasket REC128300-13230 / 128300-13230 should be ordered separately where required.

Installation and ordering checks

• Confirm whether the engine is an STE, STP, STZE or STZP variant.
• Check the engine serial number against the change points above.
• Match the old turbo to 119175-18030, 119175-18031, MYDA or RHC61W.
• Inspect the mixing elbow and exhaust connection for internal corrosion or restriction.
• Check and clean the oil-feed and oil-return systems.
• Renew the engine oil, oil filter and all disturbed sealing components.
• Prime the replacement turbocharger with clean engine oil before start-up.
• Identify and correct the cause of the previous turbo failure.

Installation by a competent marine diesel technician is recommended. Contact us before ordering if the engine serial number or turbo identification plate cannot be confirmed.

Frequently asked questions

What is the difference between 119175-18030 and 119175-18031?

Yanmar introduced 119175-18031 at production change points. Earlier engines can list 119175-18030. This Recmar unit is cross-referenced to both numbers, but the engine serial and old turbo must still be checked.

Does it fit both shaft-drive and sterndrive variants?

The Yanmar catalogue groups cover 4LHA-STE/STP and 4LHA-STZE/STZP variants. Match the complete engine designation and serial number before ordering.

Is gasket 128300-13230 included?

No. The related gasket must be ordered separately if required for the installation.