93101-23070 Yamaha Oil Seal 23x37x6 | Genuine OEM Yamaha Outboard Part

🔧 Product Description

Genuine Yamaha Lower-Unit Driveshaft Oil Seal 23mm x 37mm x 6mm - Part Number: 93101-23070

A genuine Yamaha S-type oil seal used around the vertical driveshaft in selected Yamaha and Japanese-built Mercury or Mariner lower units.

The seal is installed beneath the water-pump assembly and separates the gearcase lubricant from the water-pump cavity. Two seals may be installed back-to-back on compatible gearcases to provide protection against both oil leakage and water intrusion.

⚙️ Key Features

• Genuine Yamaha OEM S-type oil seal

• Correct Yamaha part number 93101-23070

• Dimensions: approximately 23mm inside diameter x 37mm outside diameter x 6mm width

• Used around the lower-unit driveshaft

• Mercury, Sierra and Recmar equivalents available

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 93101-23070 current Yamaha OEM service reference

OEM / Related Numbers:

• 93101-23070

• 93101-23070-00

• 9310123070

• 931012307000

• Mercury / Mariner: 26-82234M

• Mercury / Mariner: 82234M

Aftermarket / Verified Equivalents:

• Sierra: 18-0297

• Recmar: REC93101-23070

• Mercury / Mariner: 26-82234M

• Direct replacement seal: 23mm x 37mm x 6mm

🚤 Compatibility

Commonly used on:

• Yamaha lower-unit driveshaft and water-pump base assemblies

• Japanese-built Mercury and Mariner gearcases using 82234M

Typically suits:

• Engine models:

• Yamaha F25 four-stroke gearcases using the 23mm driveshaft seal

• Yamaha F30 four-stroke

• Yamaha F40 four-stroke

• Yamaha F50 and T50 four-stroke

• Yamaha F60 and T60 four-stroke

• Yamaha 30HP two-stroke

• Yamaha 40HP and C40 two-stroke

• Yamaha 50HP and C50 two-stroke

• Yamaha 60HP and 70HP gearcases using the 23mm seal

• Mercury / Mariner lower units using 26-82234M

• HP Range: Commonly 25HP - 70HP

• Engine Type: Yamaha / Mercury / Mariner two-stroke and four-stroke outboard

• Year Range: Approximately 1990s - 2010s, dependent on gearcase

🔌 Function

The oil seal retains lower-unit lubricant around the driveshaft while preventing cooling water from entering the gearcase through the water-pump base.

Common signs of failure:

• Gear oil becomes cloudy or milky

• Lubricant leaks beneath the water-pump assembly

• Gearcase fails pressure or vacuum testing

• Driveshaft seal lip becomes hard, cut or worn

• Corrosion develops around the seal carrier

📦 Condition

• Genuine Yamaha part

• Brand new

• Supplied in original or equivalent packaging