11300-ZY3-C00 Honda Case Assy | Genuine Used Part

🔧 Product Description

Genuine Honda Oil Seal Case Assembly - Part Number: 11300-ZY3-C00

A genuine used Honda oil-seal case assembly for selected BF175, BF200 and BF225 V6 four-stroke outboards.

The case mounts at the crankshaft sealing location of the cylinder block and supports the corresponding oil seal. It keeps engine oil within the crankcase while maintaining the correct alignment and support around the crankshaft. Honda identifies this part specifically as the Case Assembly, Oil Seal.

⚙️ Key Features

• Genuine Honda Marine oil-seal case
• Correct Honda part number 11300-ZY3-C00
• Supports the crankshaft oil seal
• Factory-machined sealing and mounting surfaces
• Used on Honda large V6 four-stroke outboards

🚤 Compatibility

Commonly used on

• Honda BF175 V6 cylinder-block assemblies
• Honda BF200 V6 cylinder-block assemblies
• Honda BF225 V6 cylinder-block assemblies
• Selected later D-series cylinder-block applications retaining the ZY3 oil-seal case

Typically suits

• Engine models:
• Honda BF175A
• Honda BF175AK1
• Honda BF175AK2
• Honda BF200A
• Honda BF200AK1
• Honda BF200AK2
• Honda BF225A
• Honda BF225AK1
• Honda BF225AK2
• Honda BF200D cylinder-block applications where 11300-ZY3-C00 is specified
• Honda BF225D cylinder-block applications where 11300-ZY3-C00 is specified
• HP Range: 175HP - 225HP
• Engine Type: Honda V6 four-stroke outboard
• Year Range: Approximately 2002 onward, dependent on frame serial number

🔌 Function

The case supports and locates the crankshaft oil seal, preventing engine oil escaping where the crankshaft exits the crankcase.

⚠️ Common Signs of Failure

• Engine oil leaking from the crankshaft seal area
• Corrosion or pitting around the seal bore
• Oil seal repeatedly failing because the case is damaged
• Cracked mounting flange
• Damaged or distorted gasket surface

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 11300-ZY3-C00 current Honda OEM service reference

OEM / Related Numbers

• 11300-ZY3-C00
• 11300ZY3C00
• 91201-ZY3 series related crankshaft oil seal
• 11200-ZVL-000 related upper crankcase cover on later D-series engines
• 12000-ZY3 series related cylinder-block assembly
• 900-series related oil-seal case mounting bolts

Aftermarket / Verified Equivalents

• No aftermarket equivalent

📦 Condition

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