32-863670 Mercury MerCruiser Hose | Genuine Quicksilver OEM Part

🔧 Product Description

Genuine Quicksilver Fuel Cooler to Accumulator Hose - Part Number: 32-863670

Genuine Quicksilver hose used between the fuel cooler and accumulator housing on MerCruiser MPI engines. This hose is used in Cool Fuel / fuel-cooling assemblies on selected 4.3L MPI, 5.0L MPI, 350 MAG MPI, 377 MAG MPI and MX 6.2L MPI MerCruiser applications, especially easy-drain / closed-cooling fuel cooler layouts.

⚙️ Key Features

• Genuine Quicksilver OEM hose
• Correct Mercury part number 32-863670
• Fuel cooler to accumulator housing hose
• Used in MerCruiser MPI fuel cooler / Cool Fuel systems
• Direct pre-formed replacement hose
• Important for correct fuel cooler plumbing and routing

🚤 Compatibility

Commonly used on

• MerCruiser MPI Cool Fuel assemblies
• Fuel cooler to accumulator housing hose routing
• Easy-drain / closed-cooling layouts on MPI sterndrive and inboard engines

Typically suits

• Engine models:
• MerCruiser 4.3L MPI Alpha / Bravo - serial 0M300000 to 0M614999, closed-cooling / easy-drain fuel cooler applications
• MerCruiser 5.0L MPI Alpha / Bravo - fuel cooler to accumulator hose applications
• MerCruiser 5.0L MPI Alpha / Bravo EC - standard cooling system applications where 32-863670 is specified
• MerCruiser 350 MAG MPI Alpha / Bravo - fuel cooler hose applications
• MerCruiser 350 MAG MPI Horizon Alpha / Bravo - fuel cooler hose applications
• MerCruiser 350 MAG MPI Horizon MIE - inboard fuel cooler applications
• MerCruiser 5.7L MPI Ski - fuel cooler hose applications
• MerCruiser 350 MAG MPI Ski - fuel cooler hose applications
• MerCruiser 377 MAG MPI Bravo - fuel cooler hose applications
• MerCruiser 377 MAG MPI Bravo EC - fuel cooler hose applications
• MerCruiser MX 6.2L MPI Bravo - fuel cooler hose applications
• MerCruiser MX 6.2L MPI Horizon Bravo - fuel cooler hose applications
• MerCruiser MX 6.2L MPI Horizon MIE - fuel cooler hose applications
• MerCruiser Scorpion 350 and Scorpion 377 fuel cooler hose applications
• MerCruiser 357 Horizon reman / bobtail fuel cooler hose applications where the diagram lists 32-863670
• Engine Type: MerCruiser MPI petrol sterndrive and inboard engines
• Engine Range: 4.3L, 5.0L, 5.7L, 350 MAG, 377 MAG and 6.2L where specified
• System Type: Fuel cooler / accumulator hose

🔌 Function

The hose routes fuel or fuel-cooler circuit flow between the fuel cooler and accumulator housing. Correct routing is important for fuel pressure stability, heat management and leak prevention.

⚠️ Common Signs of Failure

• Fuel smell or seepage near Cool Fuel module
• Hose cracked, hardened or swollen
• Hose kinked from incorrect replacement
• Fuel pressure instability
• Fuel cooler serviced and hose disturbed
• Hose aged from heat exposure or ethanol fuel contact

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 32-863670 current OEM fuel cooler hose reference
• 863670 short-form Mercury reference

OEM / Related Numbers

• 32-863670
• 863670
• Fuel cooler to accumulator hose
• Cool Fuel hose
• Accumulator housing hose
• MerCruiser fuel cooler hose
• 32-863611 related Cool Fuel hose family reference
• 32-864539 related fuel / cooling hose family reference
• 32-864552 related hose family reference
• 32-864726 related hose family reference

Aftermarket / Verified Equivalents

• Direct aftermarket formed hose equivalents may be available by exact 32-863670 match
• Use marine fuel-compatible hose only if fabricating a replacement
• Generic hose substitution must match inside diameter, bend radius, fuel rating, pressure rating and routing clearance

📦 Condition

• Genuine Quicksilver part
• Brand new
• Supplied in original or equivalent packaging