41100-ZY6-615ZA Honda Gearcase 25" Extra Long | Genuine Used Part

🔧 Product Description

Genuine Honda BF115-BF150 Oyster Silver 25-Inch Standard-Rotation Gearcase - Part Number: 41100-ZY6-615ZA

A genuine Honda 25-inch extra-long gearcase for selected BF115, BF135 and BF150 inline-four outboards. The ZA suffix identifies Oyster Silver paint. The unit is standard rotation and is used with the corresponding X-shaft driveshaft, shift rod and extension-case arrangement.

⚙️ Key Features

• Genuine Honda OEM gearcase
• Correct part number 41100-ZY6-615ZA
• 25-inch extra-long shaft
• Standard propeller rotation
• NH282MU Oyster Silver finish

🚤 Compatibility

• Honda BF115 model families using the ZY6 gearcase system
• Honda BF135A / BF135AK model families
• Honda BF150A / BF150AK model families
• Documented on 2007 BF150 applications
• Approximate application era: 2004-2012, with later service use controlled by serial number
• 25-inch standard-rotation models only

🔌 Function

The gearcase transmits torque through the bevel gears and propeller shaft, houses the shift mechanism and water pump and supports the propeller and exhaust outlet.

⚠️ Common Signs of Failure

• Water enters gear oil
• Unit jumps out of gear
• Propeller shaft is bent
• Housing is cracked
• Bearing carrier is seized
• Incorrect rotation or shaft length is installed

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 41100-ZY6-615ZA is a documented standard-rotation 25-inch assembly
• Related 41100-ZY6 colour and revision suffixes serve different production and paint variants
• Counter-rotation versions use separate gearcase numbers and internal gears

OEM / Related Numbers

• 41100-ZY6-615ZA
• Related white-colour ZB gearcase variant
• Related 25-inch driveshaft and shift rod
• Related BF115 / BF135 / BF150 propeller-shaft holder and gear set
• Related seal and water-pump components

Aftermarket / Verified Equivalents

• Remanufactured Honda BF115 / BF135 / BF150 25-inch standard-rotation lower units from specialist gearcase suppliers
• Used genuine Honda assemblies
• Aftermarket bearing, seal and water-pump service kits
• No verified direct new aftermarket bare housing

📦 Condition

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