labwork Water Distribution Housing Assembly Replacement for MerCruiser 863631T1, with Blue Plugs

Product Description

Replace a damaged or leaking water distribution housing with this direct-replacement assembly for selected MerCruiser inboard and sterndrive applications. The precision-machined aluminum housing is designed to provide a secure seal and help reduce coolant or water leakage.

Compatibility

• MerCruiser 5.0L MPI / Bravo
• MerCruiser 350 MAG MPI / Bravo
• MerCruiser 350 MAG MX 6.2L MPI
• MerCruiser 350 MAG MPI Horizon MIE
• MerCruiser 5.7L MPI
• MerCruiser 5.7L MPI Horizon MIE
• MerCruiser 5.7L MPI Towsport with Gen III
• MerCruiser 6.2L MPI MIE / EC
• MerCruiser Scorpion 350 EC
• MerCruiser Scorpion 377 HO EC
• Selected 4.3L MPI / Bravo applications

Replacement Part Number

• 863631T1

Specifications

• Type: Water Distribution Housing Assembly
• Application: Marine Inboard / Sterndrive Cooling System
• Housing Material: Aluminum
• Plug Material: ABS Plastic
• Plug Color: Blue
• Fitment Type: Direct Replacement

Features

• Direct replacement for part number 863631T1
• Precision-machined aluminum housing supports reliable sealing
• Helps reduce water or coolant leakage
• Reinforced housing resists corrosion, scratches, and wear
• Blue ABS drain plugs provide durable service
• Designed for selected MerCruiser marine cooling systems
• Easy replacement with proper fitment verification

Package Includes

• 1 × Water Distribution Housing Assembly
• 2 × Blue Drain Plugs
• W/o Installation Instructions

Important Note

Please verify your engine model, inboard or sterndrive configuration, mounting points, original housing shape, and part number before ordering. Marine applications may vary by engine package and production year. Professional installation is recommended.