4BY150 Marine
Yanmar 4BY150 · 4BY family — specifications, its industrial/tractor base engine, cross-referenced parts and where to buy them.
The Yanmar 4BY150 is a marinized BMW N47D20 2.0 L common-rail diesel (BMW–Yanmar supply agreement). Internal wear parts cross to BMW N47 numbers; marinized externals (raw-water circuit, manifolds, couplings) are Yanmar-only. This site's 4BY marine parts book covers the Yanmar-side BOM; no BMW donor BOM is loaded yet. source
common-rail turbo+IC; cont 136mhp@3876
A ✓ means at least one cheaper channel — aftermarket, the tractor/industrial base engine, or a standard component — exists for this engine in that category.
External links — we host none of these documents.
4BY150 — Affiliate Parts Search
As an Amazon Associate I earn from qualifying purchases. Other links (eBay, AliExpress) are also affiliate links — they help pay for the site, at no extra cost to you. More
- Category
- Marine
- Engine family
- 4BY
- Year range (approx)
- 2008–2011
- Cylinders
- 4
- Rated output
- 150 hp (110.3 kW)
- Bore × stroke
- 84 × 90 mm
- Displacement
- 1995 cc
- Max rpm
- 4000
- Continuous rpm
- 3876
- Aspiration
- Turbocharged + intercooled