682-44352-03 Yamaha Impeller 84027T Mercury | Genuine OEM Yamaha Outboard Part

🔧 Product Description

Genuine Yamaha and Mariner Water Pump Impeller - Part Number: 682-44352-03

A genuine Yamaha flexible water-pump impeller also used on selected Japanese-built Mariner outboards under Mercury and Mariner references including 84027T.

The impeller rotates within the lower-unit pump housing to draw water through the inlet and circulate it through the engine cooling passages.

⚙️ Key Features

• Genuine Yamaha OEM water-pump impeller
• Correct Yamaha part number 682-44352-03
• Direct crossover to Mercury / Mariner 84027T
• Used on selected 8HP to 15HP two-stroke and four-stroke outboards
• Cross-references with Sierra, EMP, Recmar and Quicksilver replacements

🚤 Compatibility

Commonly used on

• Yamaha portable outboard water pumps
• Japanese-built Mariner 9.9HP and 15HP lower units

Typically suits

• Engine models:
• Yamaha F8B four-stroke
• Yamaha F9.9A four-stroke
• Yamaha F9.9B four-stroke
• Yamaha F9.9D four-stroke
• Yamaha FT9.9A high-thrust four-stroke
• Yamaha 9A two-stroke
• Yamaha 9.9C two-stroke
• Yamaha 9.9D two-stroke
• Yamaha 15C two-stroke
• Yamaha 15D two-stroke
• Japanese-built Mariner 9.9C
• Japanese-built Mariner 15C
• HP Range: 8HP - 15HP
• Engine Type: Yamaha / Mariner two-stroke and four-stroke outboard
• Year Range: Approximately 1980s - 2000s, dependent on lower-unit design

🔌 Function

The impeller creates the suction and pressure required to circulate cooling water through the engine.

⚠️ Common Signs of Failure

• Weak or absent tell-tale stream
• Engine overheats at idle or under load
• Impeller blades become cracked, hardened or missing
• Rubber debris is found in cooling passages
• Cooling flow remains poor after clearing the inlet

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 682-44352-03 → Supersedes 682-44352-02
• 682-44352-02 → Supersedes 682-44352-01
• 682-44352-01 → Supersedes 682-44352-00
• 682-44352-00 earlier Yamaha impeller reference

OEM / Related Numbers

• 682-44352-03
• 682-44352-03-00
• 682443520300
• 682-44352-02
• 682-44352-01
• 682-44352-00
• Mercury / Mariner: 47-84027T
• Mercury / Mariner: 47-84027M
• Mercury / Mariner: 84027T
• Mercury / Mariner: 84027M
• Mercury / Mariner: 96619M
• Quicksilver: 8M6010332

Aftermarket / Verified Equivalents

• Sierra: 18-3074
• EMP: 47-02007
• Recmar: REC682-44352-01
• Quicksilver: 8M6010332

📦 Condition

• Genuine Yamaha part
• Brand new
• Supplied in original or equivalent packaging