5001525 Johnson Cylinder Head Port | Genuine Used Part

🔧 Product Description

Genuine Johnson / Evinrude Port Cylinder Head - Part Number: 5001525

A genuine used port-side cylinder-head assembly for selected Johnson and Evinrude 135HP, 150HP and 175HP FICHT / FFI V6 direct-injection outboards.

The cylinder head fits the port bank of the 60-degree V6 powerhead and forms the combustion chambers above the three port-side cylinders. It also carries the spark-plug threads, thermostat components and cooling-water passages for that cylinder bank.

⚙️ Key Features

• Genuine Johnson / Evinrude port cylinder head
• Correct BRP part number 5001525
• Port-bank cylinder head for 60-degree V6 FICHT / FFI engines
• Common casting reference 347308
• Used on 135HP, 150HP and 175HP direct-injection two-stroke outboards

🚤 Compatibility

Commonly used on

• Johnson 60-degree V6 FICHT / FFI direct-injection outboards
• Evinrude 60-degree V6 FICHT / FFI direct-injection outboards
• Port cylinder bank on applicable non-V-suffix engines

Typically suits

• Engine models:
• Johnson 135HP FICHT V6
• Johnson 150HP FICHT V6
• Johnson 175HP FICHT V6
• Evinrude 135HP FICHT V6
• Evinrude 150HP FICHT V6
• Evinrude 175HP FICHT V6
• Johnson 135HP FFI V6
• Johnson 150HP FFI V6
• Johnson 175HP FFI V6
• Evinrude 135HP FFI V6
• Evinrude 150HP FFI V6
• Evinrude 175HP FFI V6
• Applicable models not carrying the V model-suffix designation
• HP Range: 135HP - 175HP
• Engine Type: Johnson / Evinrude 60-degree V6 FICHT / FFI direct-injected two-stroke
• Year Range: Approximately 1999 - 2006

🔌 Function

The port cylinder head closes the port bank of cylinders, forms the combustion chambers and directs cooling water around the cylinder and spark-plug areas.

⚠️ Common Signs of Failure

• Low compression on one or more port-bank cylinders
• Water entering a combustion chamber
• Damaged or stripped spark-plug threads
• Overheating or salt corrosion around cooling passages
• Warped or eroded cylinder-head sealing surface

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 5001525 current port cylinder-head reference for applicable non-V-suffix engines
• 5000873 alternate port cylinder head used on designated V-suffix models

OEM / Related Numbers

• 5001525
• BRP-5001525
• Casting Number: 347308
• 5000873 alternate V-suffix port cylinder head
• 0335523 related cylinder-head O-ring
• 0335981 related thermostat seal
• 5000832 related thermostat cover

Aftermarket / Verified Equivalents

• No aftermarket equivalent

📦 Condition

• Genuine used part
• Removed from running engine where applicable
• In good working condition unless otherwise stated