46-812966A12 Mercury MerCruiser Water Pump Kit | Genuine Quicksilver OEM Part

🔧 Product Description

Genuine Quicksilver Complete Water Pump Repair Kit - Part Number: 46-812966A12

A genuine Quicksilver complete water pump repair kit for selected Mercury and Mariner 30HP to 60HP FourStroke outboards. This kit services the lower-unit water pump assembly and includes the key components required to restore cooling water flow, pump sealing and water pressure.

⚙️ Key Features

• Genuine Quicksilver OEM complete water pump repair kit

• Correct Mercury part number 46-812966A12

• Includes upper and lower housings, impeller, plate, gaskets, key, O-ring and related pump service parts

• Used on selected Mercury / Mariner 30HP - 60HP FourStroke outboards

• Helps restore correct cooling water pressure and prevent overheating

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 46-812966A12 → Supersedes 46-812966A11

• 46-812966A12 → Supersedes 46-812966A6

• 46-812966A12 → Supersedes 46-812966A5

• 46-812966A12 → Supersedes 46-812966A4

• 46-812966A12 → Supersedes 46-14334A3

• 46-14334A2 earlier OEM reference

OEM / Related Numbers:

• 46-812966A12

• 812966A12

• 46-812966A11

• 812966A11

• 46-812966A6

• 46-812966A5

• 46-812966A4

• 46-14334A3

• 46-14334A2

• 47-19453T2

• 47-19453Q2

Aftermarket / Verified Equivalents:

• Recmar: REC46-812966A12

• GLM: 12124

• Sierra: 18-3690

• SouthMarine: 46-812966A12 equivalent

🚤 Compatibility

Commonly used on:

• Mercury and Mariner 30HP - 60HP FourStroke lower-unit water pump applications

Typically suits:

• Engine models:

• Mercury / Mariner 30HP FourStroke - serial 0T409000 to 1B355222

• Mercury / Mariner 30HP FourStroke - serial 1C000001 and up

• Mercury / Mariner 40HP 3-cylinder carb FourStroke, 20 inch shaft - serial 1B227000 to 1B344306

• Mercury / Mariner 40HP 3-cylinder carb FourStroke, 20 inch shaft - serial 1C000001 and up

• Mercury / Mariner 40HP 3-cylinder carb FourStroke, 20 inch shaft, Belgium - serial 0P401000 and up

• Mercury / Mariner 40HP 3-cylinder EFI FourStroke, 20 inch shaft - serial 1B227000 to 1B344398

• Mercury / Mariner 40HP 3-cylinder EFI FourStroke, 20 inch shaft - serial 1C000001 and up

• Mercury / Mariner 40HP 3-cylinder EFI FourStroke, 20 inch shaft, Belgium - serial 0P401000 to 0P515896

• Mercury / Mariner 40HP 4-cylinder carb FourStroke, 1.83:1 ratio - serial 0T409000 to 1B344306

• Mercury / Mariner 40HP 4-cylinder carb FourStroke, 1.83:1 ratio - serial 1C000001 and up

• Mercury / Mariner 40HP 4-cylinder carb FourStroke, 1.83:1 ratio, Belgium - serial 0P153500 and up

• Mercury / Mariner 50HP 4-cylinder carb FourStroke, 996cc standard, Belgium - serial 0P094500 to 0P206999

• Mercury / Mariner 50HP 4-cylinder EFI FourStroke, 1.83:1 ratio - serial 0T409000 to 1B344306

• Mercury / Mariner 50HP 4-cylinder EFI FourStroke, 1.83:1 ratio - serial 1C000001 and up

• Mercury / Mariner 50HP 4-cylinder EFI FourStroke, 1.83:1 ratio, Belgium - serial 0P153500 and up

• Mercury / Mariner 60HP 4-cylinder carb FourStroke, 996cc standard - serial 0T178500 to 0T598999

• Mercury / Mariner 60HP 4-cylinder carb FourStroke, Belgium - serial 0P094500 to 0P206999

• Mercury / Mariner 60HP 4-cylinder EFI FourStroke, 1.83:1 ratio - serial 0T409000 to 1B344306

• Mercury / Mariner 60HP 4-cylinder EFI FourStroke, 1.83:1 ratio - serial 1C000001 and up

• Mercury / Mariner 60HP 4-cylinder EFI FourStroke, 1.83:1 ratio, Belgium - serial 0P153500 and up

• HP Range: 30HP - 60HP

• Engine Type: Mercury / Mariner FourStroke outboard

• System Type: Lower-unit water pump repair kit

🔌 Function

The water pump kit restores the pump components that draw cooling water through the lower unit and circulate it through the engine cooling system.

Common signs of failure:

• Weak or no tell-tale water flow

• Engine overheating at idle or under load

• Worn, cracked or missing impeller vanes

• Water pump housing wear or distortion

• Poor water pressure after lower-unit service

📦 Condition

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging