129170-13000 Aftermarket Yanmar Stainless Steel Exhaust Bend HDI JHL | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket Yanmar Stainless Steel Exhaust Bend HDI JHL - Part Number: 129170-13000

A cast AISI 316 stainless-steel lower exhaust bend replacing Yanmar 129170-13000 on naturally aspirated JH engines. It connects the engine flange to the threaded upper GM2 mixing elbow.

⚙️ Key Features

• Cast AISI 316 stainless-steel construction

• Replaces Yanmar 129170-13000

• For naturally aspirated 3JH/4JH engines

• Used with 129198-13500 / HDI GM2 mixer

• Removable threaded two-piece design

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• JHL → Replaces Yanmar 129170-13000

OEM / Related Numbers:

• 129170-13000

• HDI JHL

• 129198-13500

• JHKIT90

• JHKIT180

Aftermarket / Verified Equivalents:

• HDI Marine: JHL

🚤 Compatibility

Commonly used on:

• Yanmar naturally aspirated JH-series two-piece wet-exhaust systems

Typically suits:

• Engine models:

• Yanmar 3JH2E

• Yanmar 3JH3E

• Yanmar 3JH5E

• Yanmar 4JHE

• Yanmar 4JH2E

• Yanmar 4JH2CE

• Yanmar 3JH25A

• Yanmar 3JH30A

• Material: cast AISI 316 stainless steel

• Part Type: lower exhaust bend

• Associated Mixer Thread: 1-1/4 BSPT

🔌 Function

The lower bend routes dry exhaust away from the engine and supports the separate upper water-injection mixer.

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