23501212 Aftermarket MTU Detroit Diesel 6V-92 Tandem Cooler | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket replacement Boost/Fuel Tandem Cooler - Replaces Part Number: 23501212

New copper-nickel tandem cooler replacing Detroit Diesel 23501212 and Sendure 9571-1-7. It combines separate boost/engine-oil and fuel-cooling circuits within one raw-water-cooled shell for 6V-92 marine installations.

⚙️ Key Features

• Direct replacement for Detroit Diesel 23501212

• Cross-references Sendure 9571-1-7

• Approximately 4-inch diameter × 23.5-inch overall length

• Separate fuel and oil/boost fluid circuits

• Approximately 2-inch seawater connection

🧰 Kit / Assembly Contents

• 1 × Complete tandem cooler - P/N 23501212

• 1 × Fuel circuit with approximately 1/4-inch NPT connections

• 1 × oil/boost circuit with approximately 1-inch NPT connections

• 1 × common raw-water circuit with approximately 2-inch connections

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 23501212 ↔ Cross-references Sendure 9571-1-7

OEM / Related Numbers:

• 9571-1-7

• 23501212CN

Aftermarket / Verified Equivalents:

• Sendure: 9571-1-7

• Lenco: LE23501212

• Seakamp copper-nickel replacement for Detroit Diesel 23501212

🚤 Compatibility

Commonly used on:

• Detroit Diesel 6V-92 marine propulsion engines

Typically suits:

• Engine / Equipment models:

• 6V-92 and 6V-92TA installations whose cooling layout specifies tandem cooler 23501212

• Output / Engine Rating: Engine rating is marine calibration-dependent

• Engine / System Type: V6 two-stroke turbocharged Detroit Diesel marine engine

• Year Range: 6V-92 production era

• Serial / Model Identification: Confirm port sizes, circuit orientation and engine arrangement before ordering.

🔌 Function

The tandem cooler contains two isolated fluid circuits within one raw-water-cooled assembly. It controls the temperature of both connected systems while preventing the oils or fuel from mixing.

Common signs of failure:

• High temperature in either connected oil or fuel circuit

• Water contamination in transmission oil, steering fluid or fuel

• Oil or fuel appearing in the raw-water discharge

• Reduced system performance after prolonged operation

• External leakage, corrosion or failed pressure test

📦 Condition

• New aftermarket replacement part

• Brand new

• Supplied in original or equivalent packaging