# 278M0072137 Mercury MerCruiser Gasket | Genuine Quicksilver OEM Part

🔧 Product Description

  

Genuine Quicksilver Water Pump Outer Plate Gasket - Part Number: 27-8M0072137

  

A genuine Quicksilver water-pump and pump-case gasket for selected Mercury and Mariner small two-stroke outboards.

  

The gasket seals the outer plate or pump-case joint, allowing the impeller to draw and pressurise cooling water without leakage around the water-pump housing.

  

⚙️ Key Features

  

• Genuine Quicksilver OEM water-pump gasket

• Correct current Mercury part number 27-8M0072137

• Supersedes earlier 16158-series gasket references

• Used on selected 6HP to 9.9HP Japanese-production outboards

• Recmar and AMS replacement references available

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 27-8M0072137 → Supersedes 27-161585

• 27-161585 → Supersedes / relates to 16158015

• 16158015 earlier OEM pump-case gasket reference

  

OEM / Related Numbers:

  

• 27-8M0072137

• 8M0072137

• 278M0072137

• 27-161585

• 161585

• 16158015

• EAN: 745061606197

  

Aftermarket / Verified Equivalents:

  

• Recmar: PAF8-04000008

• AMS: 27-8M0072137 replacement gasket

• Aftermarket: 16158015 / 161585 outer plate gasket

  

🚤 Compatibility

  

Commonly used on:

  

• Mercury and Mariner small-outboard water-pump cases

• Japanese-production two-stroke lower units

  

Typically suits:

  

• Engine models:

• Mercury / Mariner 6HP two-stroke Japanese-production models

• Mercury / Mariner 8HP two-stroke Japanese-production models

• Mercury / Mariner 9.9HP two-stroke Japanese-production models

• Mercury F8 lower-unit applications using gasket 8M0072137

• Mercury F9.9 lower-unit applications using gasket 8M0072137

• Pump-case assemblies using water-pump base 46-803750A01 or upper housing 46-803750A02

  

• HP Range: 6HP - 9.9HP

• Engine Type: Mercury / Mariner small two-stroke outboard

• System Type: Water-pump outer plate / pump-case gasket

  

🔌 Function

  

The gasket seals the pump-case joint so the impeller can create the suction and pressure required to circulate cooling water.

  

Common signs of failure:

  

• Weak tell-tale flow

• Engine overheats after water-pump service

• Air enters around the pump case

• Gasket torn or incorrectly positioned

• Water pressure remains low with a new impeller

  

📦 Condition

  

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 7.0 AUD
- **Vendor:** Quicksilver
- **Tags:** Quicksilver Marine Parts | Oils Service Kits & Engine Components

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 7.00 AUD | In stock |

## Images

- 278M0072137 Mercury MerCruiser Gasket | Genuine Quicksilver OEM Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/278m0072137-mercury-mercruiser-gasket-genuine-quicksilver-oem-part)
> Updated: 2026-07-18