129472-13520 Aftermarket Yanmar 4JH3/4JH4 Exhaust Gasket | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket Yanmar 4JH3/4JH4 Exhaust Gasket - Part Number: 129472-13520

A stainless-steel exhaust flange gasket replacing Yanmar 129472-13520 on turbocharged 4JH3 and 4JH4 engines. It seals the engine/turbo outlet to the L3 or L3P mixing elbow.

⚙️ Key Features

• Stainless-steel exhaust gasket

• Replaces Yanmar 129472-13520

• For turbocharged 4JH3/4JH4 engines

• Used with HDI L3 and L3P elbows

• Replace whenever the elbow is removed

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• GL3 → Replaces Yanmar 129472-13520

OEM / Related Numbers:

• 129472-13520

• HDI GL3

• HDI L3

• HDI L3P

Aftermarket / Verified Equivalents:

• HDI Marine: GL3

🚤 Compatibility

Commonly used on:

• Yanmar turbocharged 4JH exhaust-flange joints

Typically suits:

• Engine models:

• Yanmar 4JH2-TE

• Yanmar 4JH2-DTE

• Yanmar 4JH2-HTE

• Yanmar 4JH2-UTE

• Yanmar 4JH3-TE

• Yanmar 4JH3-DTE

• Yanmar 4JH3-HTE

• Yanmar 4JH3-UTE

• Yanmar 4JH4-TE

• Yanmar 4JH4-HTE

• Yanmar 4JH4AE

• Material: stainless steel

• Joint: engine/turbo outlet to mixing elbow

🔌 Function

The gasket seals the high-temperature exhaust flange against gas and condensate leakage.

Common signs of failure:

• Black soot tracking around the joint

• Cooling-water seepage or salt deposits at the flange

• Exhaust smell or fumes in the engine compartment

• Burnt, split, crushed or hardened sealing material

• Corrosion or erosion of the mating faces

📦 Condition

• Brand new aftermarket replacement part

• New and unused

• Supplied in manufacturer or equivalent protective packaging