8m0180871 Mercury MerCruiser Wear Plate | Genuine Quicksilver OEM Part

🔧 Product Description

Genuine Quicksilver Sea Water Pump Impeller Wear Plate - Part Number: 8M0180871

A genuine Quicksilver sea water pump impeller wear plate used on MerCruiser sea water pump assemblies with no air fittings. This wear plate is used with sea water pump 46-8M0137216 and impeller kit 47-8M0104229 on selected MerCruiser 4.3L, 5.0L, 5.7L, 6.2L and 8.2L petrol engines where specified.

⚙️ Key Features

• Genuine Quicksilver OEM wear plate

• Correct Mercury part number 8M0180871

• Supersedes 8M2014176

• Used with sea water pump 46-8M0137216 with no air fittings

• Used with impeller kit 47-8M0104229 in supported sea water pump assemblies

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 8M0180871 → Supersedes 8M2014176

• 8M2014176 earlier sea water pump wear plate reference

OEM / Related Numbers:

• 8M0180871

• 8M2014176

• Mercury 8M0180871

• Quicksilver 8M0180871

• 46-8M0137216 related sea water pump with no air fittings

• 47-8M0104229 related impeller kit

• 35-8M0204703 related water separating fuel filter reference in later service catalogues

• 54-815504272 related worm gear clamp

• 11-82671112 related .375-16 nut

• 10-668631 related .375-16 x 2.500 screw

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• MerCruiser sea water pump assemblies with no air fittings

• MerCruiser raw water pump impeller service using pump 46-8M0137216

• MerCruiser petrol sterndrive and inboard cooling systems where wear plate 8M0180871 is specified

Typically suits:

• Engine models:

• MerCruiser 4.3L petrol engine sea water pump applications using pump 46-8M0137216 with no air fittings

• MerCruiser 5.0L petrol engine sea water pump applications using pump 46-8M0137216 with no air fittings

• MerCruiser 5.7L petrol engine sea water pump applications using pump 46-8M0137216 with no air fittings

• MerCruiser 6.2L petrol engine sea water pump applications using pump 46-8M0137216 with no air fittings

• MerCruiser 8.2L MPI Horizon MIE applications using the specified sea water pump assembly

• MerCruiser 350 MAG MPI sea water pump applications where 8M0180871 is specified

• MerCruiser 350 MAG MPI Horizon sea water pump applications where 8M0180871 is specified

• MerCruiser 357 Alpha 4V sea water pump applications where 8M0180871 is specified

• MerCruiser 357 Mag Bravo 4V sea water pump applications where 8M0180871 is specified

• MerCruiser 357 Stroker Scorpion sea water pump applications where 8M0180871 is specified

• MerCruiser 377 MAG MPI Bravo sea water pump applications where 8M0180871 is specified

• MerCruiser 383 MAG Stroker sea water pump applications where 8M0180871 is specified

• MerCruiser 383 MAG Stroker Bravo sea water pump applications where 8M0180871 is specified

• MerCruiser 383 MAG Stroker Inboard sea water pump applications where 8M0180871 is specified

• MerCruiser 383 Stroker Scorpion sea water pump applications where 8M0180871 is specified

• MerCruiser 4.3L MPI sea water pump applications using 46-8M0137216 where specified

• MerCruiser 5.0L MPI Alpha / Bravo sea water pump applications using 46-8M0137216 where specified

• MerCruiser 5.7L MPI MIE sea water pump applications using 46-8M0137216 where specified

• MerCruiser 5.7L MPI Horizon MIE sea water pump applications using 46-8M0137216 where specified

• MerCruiser 6.2L MPI MIE sea water pump applications using 46-8M0137216 where specified

• MerCruiser 6.2L MPI Horizon MIE sea water pump applications using 46-8M0137216 where specified

• MerCruiser MX 6.2L MPI Bravo sea water pump applications where 8M0180871 is specified

• MerCruiser MX 6.2L MPI Horizon Bravo sea water pump applications where 8M0180871 is specified

• MerCruiser Black Scorpion and Scorpion 350 / 377 cooling pump applications where the diagram specifies wear plate 8M0180871

• MerCruiser 8.2L Inboard Base EC and 8.2L Inboard H.O. EC sea water pump applications where 8M0180871 is specified

• Engine Type: MerCruiser petrol sterndrive and inboard

• Engine Range: 4.3L, 5.0L, 5.7L, 6.2L and 8.2L where the pump diagram specifies 8M0180871

• System Type: Sea water pump impeller wear plate

• Pump Note: Used on sea water pump 46-8M0137216 with no air fittings

🔌 Function

The wear plate provides the flat sealing and wear surface for the sea water pump impeller. It helps the impeller create suction and maintain raw-water flow through the engine cooling system.

Common signs of failure:

• Reduced raw water flow

• Engine overheating at idle or under load

• Wear grooves or scoring on the plate surface

• Impeller replaced but cooling performance remains poor

• Pump housing seepage or loss of prime

• Replacement required during sea water pump rebuild

📦 Condition

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging