# 2675624 Mercury MerCruiser Seal | Genuine Quicksilver OEM Part

🔧 Product Description

  

Genuine Quicksilver Valve Stem Seal - Part Number: 26-75624

  

A genuine Quicksilver valve seal used on selected MerCruiser 485, Ford 233 and Ford 888 petrol engine applications. This valve stem seal helps control oil passing down the valve stem into the combustion chamber and is replaced during cylinder head, valve train or engine rebuild service.

  

⚙️ Key Features

  

• Genuine Quicksilver OEM valve seal

• Correct Mercury part number 26-75624

• Fits selected MerCruiser 485, Ford 233 and Ford 888 applications where specified

• Cross-references with Sierra, GLM and Barr Marine equivalents

• Important replacement item during cylinder head and valve service

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 26-75624 current OEM valve seal reference

• 26-75413 related earlier / alternate valve seal reference in aftermarket cross-reference family

  

OEM / Related Numbers:

  

• 26-75624

• 75624

• 2675624

• Mercury 26-75624

• Quicksilver 26-75624

• 26-75413 related earlier / alternate valve seal reference

• Valve stem seal reference

• Cylinder head valve seal reference

  

Aftermarket / Verified Equivalents:

  

• Sierra: 18-4023

• GLM: 85760

• Barr Marine: MC47-26-75413

  

🚤 Compatibility

  

Commonly used on:

  

• MerCruiser 485 petrol engine valve train assemblies

• MerCruiser Ford 233 V8 valve stem sealing applications

• MerCruiser Ford 888 V8 valve stem sealing applications

  

Typically suits:

  

• Engine models:

• MerCruiser 485 Mercury 224 I/L4 applications where valve seal 26-75624 is specified

• MerCruiser 485 2BBL Mercury 224 I/L4 - serial 5685394 to 6218036 where specified

• MerCruiser 233 Ford 351 V8 applications where valve seal 26-75624 is specified

• MerCruiser 233 Ford 351 V8 - 1975-1977, serial 4173000 to 4902304 where specified

• MerCruiser 233 MIE Ford 351 V8 - 1975-1976, serial 4173000 to 4775784 where specified

• MerCruiser 888 Ford 302 V8 applications where valve seal 26-75624 is specified

• MerCruiser 888 Ford 302 V8 - 1971-1977, serial 3108723 and up where specified

  

• Engine Type: MerCruiser 224 CID inline 4-cylinder and Ford 302 / 351 V8 petrol engines where specified

• System Type: Valve stem seal / cylinder head seal

  

🔌 Function

  

The valve stem seal controls oil flow around the valve stem, reducing excess oil entry into the combustion chamber while allowing adequate valve stem lubrication.

  

Common signs of failure:

  

• Blue smoke on start-up

• Excessive oil consumption

• Oil-fouled spark plugs

• Carbon build-up on valve stems

• Valve seals hardened or cracked during cylinder head service

• Replacement required during valve train rebuild

  

📦 Condition

  

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 6.65 AUD
- **Vendor:** Quicksilver
- **Tags:** Quicksilver Marine Parts | Oils Service Kits & Engine Components

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 6.65 AUD | In stock |

## Images

- 2675624 Mercury MerCruiser Seal | Genuine Quicksilver OEM Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/2675624-mercury-mercruiser-seal-genuine-quicksilver-oem-part)
> Updated: 2026-07-18