4742038Q02 Mercury MerCruiser Impeller | Genuine Quicksilver OEM Part

🔧 Product Description

Genuine Quicksilver Water Pump Impeller - Part Number: 47-42038Q02

Genuine Quicksilver/Mercury water pump impeller for selected Mercury and Mariner 6HP-15HP outboard lower-unit water pump assemblies. This OEM impeller is used on compatible 2-stroke and standard-gearcase 4-stroke models and helps restore correct cooling-water flow through the engine.

⚙️ Key Features

• Genuine Quicksilver/Mercury OEM water pump impeller

• Designed for selected Mercury / Mariner 6HP-15HP outboard applications

• Used on compatible 2-stroke and standard-gearcase 4-stroke lower units

• Helps restore cooling-water pressure and pump priming

• Direct replacement for earlier 42038-series Mercury impeller references

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 47-42038K02 → Later service reference for 47-42038Q02

• 47-42038Q02 → Supersedes 47-42038-2

• 47-42038-2 → Supersedes 47-420381

• 47-420381 earlier OEM reference

OEM / Related Numbers:

• 47-42038Q02

• 42038Q02

• 4742038Q02

• 47-42038K02

• 42038K02

• 47-42038-2

• 42038-2

• 47-420381

• 420381

Aftermarket / Verified Equivalents:

• Sierra: 18-3062

• Mallory: 9-45309

• GLM: 89451

• REC: REC47-420382

🚤 Compatibility

Commonly used on:

• Mercury / Mariner 6HP-15HP outboard lower-unit water pump assemblies

• Mercury / Mariner 2-stroke standard gearcase applications

• Mercury / Mariner 4-stroke standard gearcase applications

Typically suits:

• Engine models:

• Mercury / Mariner 6HP 2-Cycle, USA serial 0A197112 and up

• Mercury / Mariner 6HP 2-Cycle, BEL serial 9461526 and up

• Mercury 6HP, serial 0P325500 and up

• Mercury / Mariner 8HP 2-Cycle, USA serial 0A197112 and up

• Mercury / Mariner 8HP 2-Cycle, BEL serial 9461526 and up

• Mercury 8HP, serial 0P325500 and up

• Mercury 8HP, serial range 0T980000 - 0T999999

• Mercury 8HP, serial 1B000001 and up

• Mercury / Mariner 8HP 4-Stroke standard gearcase, 2004 and older

• Mercury / Mariner 9.9HP 2-Cycle, USA serial 0A197112 and up

• Mercury / Mariner 9.9HP 2-Cycle, BEL serial 9461526 and up

• Mercury 9.9HP, serial 0P325500 and up

• Mercury 9.9HP, serial range 0T980000 - 0T999999

• Mercury 9.9HP, serial 1B000001 and up

• Mercury 9.9HP 4-Stroke 323cc, serial range 0G760300 - 1B226999

• Mercury 9.9HP 4-Stroke 323cc, serial range 0P075166 - 0P400999

• Mercury 10 Marathon, serial 0P325500 and up

• Mercury 10 Marathon, serial range 0T980000 - 0T999999

• Mercury 10 Marathon, serial 1B000001 and up

• Mercury 10 Sea Pro, serial 0P325500 and up

• Mercury / Mariner 13.5HP 2-Cycle standard gearcase applications using 47-42038Q02

• Mercury / Mariner 15HP 2-Cycle, USA serial 0A197112 and up

• Mercury / Mariner 15HP 2-Cycle, BEL serial 9461526 and up

• Mercury / Mariner 15HP 4-Stroke standard gearcase, 2008 and older

• HP Range: 6HP - 15HP

• Engine Type: Mercury / Mariner small outboard lower-unit water pump system

• Year Range: Application dependent; includes 2004 and older 8HP-9.9HP 4-stroke standard gearcase and 2008 and older 15HP 4-stroke standard gearcase applications

🔌 Function

The impeller rotates inside the lower-unit pump housing to draw cooling water into the engine. A correct impeller helps maintain water pressure, prevents overheating and supports reliable cooling at idle, low speed and operating RPM.

Common signs of failure:

• Weak or inconsistent tell-tale water stream

• Engine overheating warning

• Pump not priming after service or storage

• Cracked, stiff or damaged impeller vanes

• Reduced cooling-water pressure

• Rubber fragments found in the cooling system

📦 Condition

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging