119181-13500 Aftermarket Yanmar 4LH-STE/4LH-DTE Exhaust Mixing Elbow HDI 3B4 | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket Yanmar 4LH-STE/4LH-DTE Exhaust Mixing Elbow HDI 3B4 - Part Number: 119181-13500

A cast AISI 316 stainless-steel 4-inch wet mixing elbow replacing Yanmar 119181-13500 on 4LH-STE and 4LH-DTE engines. It uses the dedicated three-bolt 3B4 flange geometry.

⚙️ Key Features

• Cast AISI 316 stainless-steel construction

• Replaces Yanmar 119181-13500

• For 4LH-STE and 4LH-DTE

• 4-inch wet-exhaust outlet

• Direct three-bolt flange replacement

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 3B4 → Replaces Yanmar 119181-13500

OEM / Related Numbers:

• 119181-13500

• HDI 3B4

Aftermarket / Verified Equivalents:

• HDI Marine: 3B4

• Recmar: MAR119181-13500INOX

🚤 Compatibility

Commonly used on:

• Yanmar 4LH-STE / 4LH-DTE wet-exhaust systems

Typically suits:

• Engine models:

• Yanmar 4LH-STE

• Yanmar 4LH-DTE

• Material: cast AISI 316 stainless steel

• Exhaust Outlet: 4 in

• Flange Type: three-bolt

🔌 Function

The elbow turns exhaust and introduces raw water before the 4-inch wet exhaust hose.

Common signs of failure:

• External corrosion, cracking or pin-hole leakage

• Internal carbon, rust or salt restriction

• Cooling water entering the manifold, turbocharger or cylinders

• Steam, reduced cooling-water discharge or an abnormally hot exhaust hose

• Loss of power caused by excessive exhaust back-pressure

📦 Condition

• Brand new aftermarket replacement part

• New and unused

• Supplied in manufacturer or equivalent protective packaging