# 32864588 Mercury MerCruiser Hydraulic Hose | Genuine Quicksilver OEM Part

🔧 Product Description

  

Genuine Quicksilver Power Trim Hydraulic Hose - Port Down Pressure - Part Number: 32-864588

  

A genuine Quicksilver power trim hydraulic hose used between the trim cylinder and connector block on MerCruiser R, MR, Alpha One and Bravo sterndrives. This hose is the port-side down-pressure trim cylinder hose and replaces earlier 32-99903 trim hose references.

  

⚙️ Key Features

  

• Genuine Quicksilver OEM hydraulic trim hose

• Correct Mercury part number 32-864588

• Trim cylinder to connector block hose

• Port-side down-pressure hose

• Fits R, MR, Alpha One and Bravo I, II, III, X, XR and XZ applications where specified

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 32-864588 → Supersedes 32-99903

• 32-99903 earlier OEM port trim hose reference

  

OEM / Related Numbers:

  

• 32-864588

• 864588

• 32864588

• 32-99903

• 99903

• 32-99904Q related up-pressure hose

• 32-864589 related starboard down-pressure hose

  

Aftermarket / Verified Equivalents:

  

• Sierra: 18-2137

• GLM: 26200

• Mallory: 9-71515

• Recmar: REC32-864588

  

🚤 Compatibility

  

Commonly used on:

  

• MerCruiser power trim cylinder to connector block hydraulic systems

• Port-side trim cylinder down-pressure hose applications

  

Typically suits:

  

• Drive models:

• MerCruiser R drive trim cylinder hose applications - serial 6225577 and up

• MerCruiser MR drive trim cylinder hose applications - serial 6225577 and up

• MerCruiser Alpha One Gen I trim cylinder hose applications - serial 6216687 to 0D469858

• MerCruiser Alpha One Gen I, 1983-1990 service range, port trim hose applications

• MerCruiser Bravo One trim cylinder hose applications - serial 0B664190 to 0W249999

• MerCruiser Bravo Two trim cylinder hose applications - serial 0B664190 to 0W249999

• MerCruiser Bravo Three trim cylinder hose applications - serial 0B664190 to 0W249999

• MerCruiser Bravo X One / Two / Three trim cylinder hose applications where 32-864588 is specified

• MerCruiser Bravo XR trim hose applications where 32-864588 is specified

• MerCruiser Bravo XZ trim hose applications where 32-864588 is specified

• MerCruiser Blackhawk trim cylinder hose applications - serial 0F186717 and up where 32-864588 is specified

  

• Drive Type: MerCruiser R / MR / Alpha One Gen I / Bravo I / II / III / X / XR / XZ

• System Type: Hydraulic power trim hose

• Hose Position: Port-side down-pressure trim cylinder to connector block hose

• Fitment Note: Not the later Alpha One Gen II style where a different hose layout is used. Verify trim cylinder casting and hose length before installation.

  

🔌 Function

  

The hose carries pressurised trim fluid between the connector block and port trim cylinder, allowing the trim system to apply down-pressure and control sterndrive angle.

  

Common signs of failure:

  

• Trim fluid leak from hose or crimp

• Drive will not hold trim position

• Slow or weak trim response

• Air entering hydraulic trim circuit

• Hose corrosion, abrasion or cracking

  

📦 Condition

  

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 135.9 AUD
- **Vendor:** Quicksilver
- **Tags:** Quicksilver Marine Parts | Oils Service Kits & Engine Components

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 135.90 AUD | In stock |

## Images

- 32864588 Mercury MerCruiser Hydraulic Hose | Genuine Quicksilver OEM Part

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> Source: [Sawley's Auto and Marine](www.sawleysautoandmarine.com.au/products/32864588-mercury-mercruiser-hydraulic-hose-genuine-quicksilver-oem-part)
> Updated: 2026-05-17