8M0050522 Mercury MerCruiser 8M057748 Oil Seal Carrier Assembly | Genuine Quicksilver OEM Part

🔧 Product Description

Genuine Quicksilver Oil Seal Carrier Assembly - Part Number: 8M0050522

A genuine Quicksilver oil seal carrier assembly used in selected Mercury / Mariner 65HP to 150HP EFI and FourStroke gearcase applications. This carrier is fitted in the lower-unit gear housing and supports the propeller shaft / driveshaft sealing arrangement depending on the gearcase diagram.

⚙️ Key Features

• Genuine Quicksilver OEM oil seal carrier assembly

• Correct Mercury part number 8M0050522

• Cross-referenced with 8M0057748 carrier assembly

• Used on selected 65HP to 150HP Mercury / Mariner outboard gearcases

• Supports correct lower-unit sealing and gearcase oil retention

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 8M0057748 related / later oil seal carrier reference

• 8M0050522 earlier / related oil seal carrier reference

OEM / Related Numbers:

• 8M0050522

• 8M0057748

• 8M057748 title shorthand / typo reference

• 8M0028663 related carrier / gearcase reference

• 853651 related driveshaft bearing retainer

• 8M0057716 related gearcase seal kit reference

Aftermarket / Verified Equivalents:

• Recmar: REC8M0057748

• GLM-style oil seal carrier equivalents may exist for selected applications

🚤 Compatibility

Commonly used on:

• Mercury / Mariner 65HP to 150HP EFI and FourStroke lower gearcase oil seal carrier applications

Typically suits:

• Engine / gearcase models:

• Mercury 65 Jet FourStroke gear housing, 2.38:1 standard / counter rotation - serial 2B095049 and up

• Mercury 65 Jet FourStroke gear housing, 2.07:1 standard rotation - serial 2B095049 and up

• Mercury 75HP EFI FourStroke gear housing applications - serial 2B095049 and up where 8M0050522 / 8M0057748 is specified

• Mercury 80HP EFI FourStroke gear housing applications - serial 2B095049 and up where specified

• Mercury 80 Jet FourStroke gear housing applications - serial 2B095049 and up where specified

• Mercury 90HP EFI FourStroke gear housing applications - serial 2B095049 and up where specified

• Mercury 100HP EFI FourStroke gear housing applications - serial 2B095049 and up where specified

• Mercury 115HP EFI FourStroke gear housing applications - serial 2B095049 and up where specified

• Mercury 150HP FourStroke gear housing, standard / counter rotation - serial 1B905505 and up

• Mercury 150HP SeaPro FourStroke gear housing, standard / counter rotation - serial 2B139139 and up

• Mercury 90HP / 100HP / 115HP / 150HP 2.1L EFI gearcase applications using carrier 8M0050522 / 8M0057748

• Mercury / Mariner 65HP - 150HP EFI lower-unit gearcases where the parts diagram specifies 8M0050522 or 8M0057748

• HP Range: commonly 65HP - 150HP where specified

• Engine Type: Mercury / Mariner EFI FourStroke outboard

• System Type: Lower-unit oil seal carrier / gearcase sealing component

🔌 Function

The oil seal carrier supports the gearcase seal arrangement, helping retain gear oil and prevent water entry into the lower unit.

Common signs of failure:

• Gear oil leakage from lower-unit seal area

• Water contamination in gear oil

• Failed pressure / vacuum test

• Corroded, cracked or damaged carrier

• Seal carrier replacement required during lower-unit reseal service

📦 Condition

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging