JHKIT90 Aftermarket Yanmar JH-Series Stainless Steel Exhaust Kit 129198-13500 / 129470-13541 / 129170-13000 | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket Yanmar JH-Series Stainless Steel Exhaust Kit 129198-13500 / 129470-13541 / 129170-13000 - Part Number: JHKIT90

A complete AISI 316 stainless-steel exhaust mixing kit for naturally aspirated Yanmar JH-series engines, configured with a 90-degree water inlet. It replaces the original 129198-13500 mixing elbow and 129170-13000 lower exhaust bend.

⚙️ Key Features

• Complete stainless-steel JH exhaust kit

• 90-degree water inlet configuration

• Replaces the original two-piece elbow and bend arrangement

• Includes gasket and threaded water-injection parts

• For naturally aspirated 3JH and 4JH engine families

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• JHKIT90 → Replaces Yanmar 129198-13500 and 129170-13000

• JHKIT90 → Also replaces water-inlet elbow 129470-13541

OEM / Related Numbers:

• JHKIT90

• 129198-13500

• 129170-13000

• 129470-13541

• 104214-13580

• 129472-18090

Aftermarket / Verified Equivalents:

• HDI Marine: JHKIT90

Included Components:

• Mixing elbow - Part Number: 129198-13500 / HDI GM2

• Lower exhaust bend - Part Number: 129170-13000 / HDI JHL

• 90-degree bronze hose barb - HDI JHB90

• Threaded stainless coupler - Part Number: 104214-13580

• Mounting gasket - Part Number: 129472-18090

🚤 Compatibility

Commonly used on:

• Yanmar naturally aspirated JH-series wet-exhaust systems

Typically suits:

• Engine models:

• Yanmar 3JH2E

• Yanmar 3JH3E

• Yanmar 3JH5E

• Yanmar 4JHE

• Yanmar 4JH2E

• Yanmar 4JH2CE

• Yanmar 3JH25A

• Yanmar 3JH30A

• Exhaust Outlet: 2 in OD

• Internal Thread: 1-1/4 BSPT

• Water-Inlet Layout: 90-degree water inlet

🔌 Function

The kit carries exhaust away from the engine and injects raw water in the upper mixing section before the gas enters the wet exhaust hose.

Common signs of failure:

• Exhaust-gas or cooling-water leakage after assembly

• Restricted exhaust flow or excessive back-pressure

• Insufficient cooling-water injection into the wet exhaust

• Corrosion or pitting at the mating flanges

• Incorrect alignment, clamp engagement or gasket compression

📦 Condition

• Brand new aftermarket replacement part

• New and unused

• Supplied in manufacturer or equivalent protective packaging