RHC7W 119574-18010 Turbocharger for Yanmar Marine 6LYA-STE
The RHC7W (119574-18010) is an IHI turbocharger for the 1997-2001 Yanmar Marine 6LYA-STE engine — a 6-cylinder marine diesel widely used in pleasure craft, sportfishing boats, and light commercial vessels. The RHC7W is a water-cooled marine turbo built for the saltwater environment. IHI reference VD290035; Yanmar numbers 119574-18010, -18011, -18012, -18020. Built new, dynamically balanced, ships with gaskets. We supply marine service yards, boat dealers, and distributors.
Turbo Model
RHC7W (IHI, water-cooled marine)
OEM / Interchange Numbers
VD290035, 119574-18010, 119574-18011, 119574-18012, 119574-18020, 11957418010
Application
1997-2001 Yanmar Marine 6LYA-STE
Service & Support
- 1-Year Warranty
- US Stock, Fast Dispatch
- Bulk Orders Welcome
- White-Label Support
- Fully Certified
Your Source for Quality Diesel Engine Parts
FAQ
The RHC7W (119574-18010/-18011/-18012/-18020, IHI VD290035) fits the 1997-2001 Yanmar Marine 6LYA-STE diesel.
No. The 6LYA-STP uses the RHC7W 119575-18020 — same turbo family, different configuration. Match by Yanmar part number.
Brand new, dynamically balanced. No core charge. One-year warranty.
Yes. US stock, volume pricing for marine service yards and distributors.
RHC7W for Yanmar 6LYA-STE: The Marine Diesel Turbo
Marine turbos live a harder life than truck turbos — salt air, long hours at sustained load, and cooling systems that depend on raw-water flow. The RHC7W is water-cooled specifically for this duty. When it fails, boats show black smoke, loss of RPM under load, and rising exhaust temps.
Yanmar 6LYA turbo variants
| Engine | Turbo | Key Yanmar # |
|---|---|---|
| 6LYA-STE (this page) | RHC7W | 119574-18010 series |
| 6LYA-STP | RHC7W | 119575-18020 |
STE and STP use different RHC7W configurations — match by the Yanmar number on your old turbo.
Common marine failure modes
- Salt corrosion — housing and water passages corrode over years in the saltwater environment.
- Coking from heat soak — shutting down after hard running without idle-down cooks oil in the bearing housing.
- Bearing wear — long continuous-load hours wear the journal bearings.
Installation
- Direct bolt-on. Ships with gaskets.
- Connect water-cooling lines and verify flow before sea trial.
- Flush oil feed line. Prime before first start; idle down after hard runs.
See our quality process for details.
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