# 478M0137219 Mercury MerCruiser Impeller Kit | Genuine Quicksilver OEM Part

🔧 Product Description

  

Genuine Quicksilver Heavy Duty Sea Water Pump Impeller Kit - Part Number: 47-8M0137219

  

Genuine Quicksilver/MerCruiser heavy duty sea water pump impeller kit for selected MerCruiser V6 and V8 petrol engine raw-water pump applications. This OEM kit is designed for MerCruiser engines using the brass engine-mounted sea water pump and helps restore correct raw-water flow through the cooling system.

  

⚙️ Key Features

  

• Genuine Quicksilver/Mercury OEM heavy duty impeller kit

• Designed for MerCruiser V6 and V8 brass sea water pump applications

• Includes impeller and required sealing/service components

• Used on selected 305, 350, 496 and 502 CID MerCruiser engines

• Helps restore reliable raw-water flow and reduce overheating risk

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 47-8M0137219

• 47-8M0120891 related earlier heavy duty impeller kit reference

• 47-862232A2 related earlier impeller kit reference where fitted by pump style

  

OEM / Related Numbers:

  

• 47-8M0137219

• 8M0137219

• 478M0137219

• 47-8M0120891

• 8M0120891

• 47-862232A2

• 862232A2

• 817275Q05 related water pump rebuild kit reference

  

Aftermarket / Verified Equivalents:

  

• EMP: 47-09201

• Sierra: 18-3016-1

• REC: REC47-8M0137219

  

🚤 Compatibility

  

Commonly used on:

  

• MerCruiser engine-mounted brass sea water pump assemblies

• MerCruiser Bravo stern drive raw-water pump applications

• MerCruiser inboard sea water pump applications using the matching brass pump

  

Typically suits:

  

• Engine models:

• MerCruiser MCM V6 305 CID applications, 2000 and newer, with brass sea water pump

• MerCruiser MCM V8 350 CID applications, 2000 and newer, with brass sea water pump

• MerCruiser MCM 496 CID applications, 2000 and newer, with brass sea water pump

• MerCruiser MCM 502 CID applications, 2000 and newer, with brass sea water pump

• MerCruiser 5.0L V8 Bravo applications using the matching brass sea water pump

• MerCruiser 5.7L V8 Bravo applications using the matching brass sea water pump

• MerCruiser 6.2L / 377 CID V8 applications using the matching brass sea water pump

• MerCruiser 8.1L / 496 CID V8 applications using the matching brass sea water pump

• MerCruiser 8.2L / 502 CID V8 applications using the matching brass sea water pump

  

• HP Range: Application dependent across MerCruiser V6 and V8 petrol engine packages

• Engine Type: MerCruiser petrol stern drive / inboard engine-mounted raw-water pump system

• Year Range: Commonly 2000 and newer MerCruiser V6/V8 applications with brass sea water pump; not for newer 4.5L and 6.2L pump designs unless parts diagram specifies this kit

  

🔌 Function

  

The impeller kit services the engine-mounted raw-water pump that draws cooling water from outside the vessel and circulates it through the engine cooling system. A correct impeller kit helps restore pump sealing, cooling-water flow and engine temperature control.

  

Common signs of failure:

  

• Engine overheating

• Weak or reduced raw-water flow

• Overheating at idle or under load

• Cracked, hardened or missing impeller blades

• Rubber fragments in the cooling system

• Pump squeal or dry-running damage

• Poor cooling performance after long storage

  

📦 Condition

  

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 66.0 AUD
- **Vendor:** Quicksilver
- **Tags:** Quicksilver Marine Parts | Oils Service Kits & Engine Components

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 66.00 AUD | In stock |

## Images

- 478M0137219 Mercury MerCruiser Impeller Kit | Genuine Quicksilver OEM Part

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> Source: [Sawley's Auto and Marine](www.sawleysautoandmarine.com.au/products/478m0137219-mercury-mercruiser-impeller-kit-genuine-quicksilver-oem-part)
> Updated: 2026-05-17