# 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

  

🔄 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

  

🚤 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

  

📦 Condition

  

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 69.5 AUD
- **Vendor:** Sawley's Auto and Marine
- **Tags:** Quicksilver Marine Parts | Oils Service Kits & Engine Components

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 69.50 AUD | In stock |

## Images

- 32-863670 Mercury MerCruiser Hose | Genuine Quicksilver OEM Part
- 32-863670 Mercury MerCruiser Hose | Genuine Quicksilver OEM Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/32-863670-hose)
> Updated: 2026-07-05