SK3400C Aftermarket Heat Exchanger 4 in End Cover Gasket Kit | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket Heat Exchanger 4 in End Cover Gasket Kit - Replacement Part Number: SK3400C

Brass end-cover service kit for compatible 4-inch heat exchangers.

⚙️ Key Features

• Complete heat-exchanger end-cover service kit

• Designed as a direct replacement for the listed reference numbers

• Helps maintain stable operating temperature under sustained marine load

• Marine connection sizes and mounting points must match the original assembly

• Suitable for professional marine cooling-system service and replacement

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• SK3400C → Replaces Sendure 5374

• SK3400C → Cross-references to Mercury 99961

OEM / Related Numbers:

• SK3400C

• Sendure 5374

• Mercury 99961

Aftermarket / Verified Equivalents:

• Seakamp: SK3400C

Included Components:

• Brass end cover - Part Number: SK3400C

• End-cover gasket - Part Number: supplied in SK3400C

• Stainless-steel mounting bolt - Part Number: supplied in SK3400C

🚤 Compatibility

Commonly used on:

• Complete heat-exchanger end-cover service kit systems

Typically suits:

• Engine models:

• Compatible 4-inch and 4-1/8-inch marine heat-exchanger end-cover systems

• Nominal Size: 4 in

• Gasket Diameter: approximately 3-7/8 in

🔌 Function

The kit restores the removable end-cover joint used to access the heat-exchanger tube stack.

Common signs of failure:

• Coolant or seawater seeps around the end cover

• Salt deposits or corrosion staining appears

• The cover is warped or corroded

• The gasket no longer holds compression

• The bolt or O-ring is damaged

📦 Condition

• Brand new aftermarket replacement part

• New and unused

• Supplied in manufacturer or equivalent protective packaging