93101-28M16 Yamaha Drive Shaft Oil Seal | Genuine OEM Yamaha Outboard Part

🔧 Product Description

Genuine Yamaha Large-Gearcase Driveshaft Oil Seal - Part Number: 93101-28M16

A genuine Yamaha driveshaft oil seal for selected 75HP to 300HP four-stroke and 115HP to 300HP two-stroke lower units.

The seal fits around the vertical driveshaft beneath the water-pump base. Compatible gearcases commonly use two seals installed in opposing directions.

⚙️ Key Features

• Genuine Yamaha OEM driveshaft oil seal
• Correct Yamaha part number 93101-28M16
• Approximate dimensions: 27mm inside diameter x 43.25mm outside diameter x 7mm width
• Used on Yamaha large and V6 gearcases
• Sierra, WSM, Recmar and Mercury replacements available

🚤 Compatibility

Commonly used on

• Yamaha large-gearcase driveshaft seal carriers
• Yamaha V4, V6, HPDI and large four-stroke lower units

Typically suits

• Engine models:
• Yamaha 115HP and 130HP two-stroke
• Yamaha 150HP, 175HP, 200HP, 225HP and 250HP two-stroke
• Yamaha Z150, Z175, Z200, Z250 and Z300 HPDI
• Yamaha VZ150, VZ175, VZ200, VZ225, VZ250 and VZ300 HPDI
• Yamaha F75, F80, F90 and F100 four-stroke gearcases where specified
• Yamaha F115 and LF115
• Yamaha F150, FL150 and LF150
• Yamaha F175
• Yamaha F200, LF200 and FL200
• Yamaha F225 and LF225
• Yamaha F250 and LF250
• Yamaha F300 and LF300
• HP Range: 115HP - 300HP two-stroke; 75HP - 300HP four-stroke
• Engine Type: Yamaha two-stroke, HPDI and four-stroke outboard
• Year Range: Approximately 1984 onward, dependent on gearcase

🔌 Function

The seal retains lower-unit lubricant around the driveshaft and prevents water entering the gearcase through the water-pump base.

⚠️ Common Signs of Failure

• Lower-unit lubricant becomes milky
• Gear oil leaks beneath the water-pump assembly
• Gearcase fails a pressure or vacuum test
• Seal lips become hardened or damaged
• Driveshaft corrosion or grooving develops beneath the seals

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 93101-28M16 current Yamaha OEM service reference

OEM / Related Numbers

• 93101-28M16
• 93101-28M16-00
• 9310128M1600
• Mercury / Mariner: 26-888694
• Mercury / Mariner: 888694

Aftermarket / Verified Equivalents

• Sierra: 18-0265
• WSM: 552-54
• Recmar: REC93101-28M16
• Aftermarket reference: 2035
• Mercury / Mariner: 26-888694

📦 Condition

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