Lower Unit Seals & Seal Kits | Johnson Evinrude

OEM and Cross Reference Numbers

Pro Marine 9522P is used as an aftermarket replacement for applications associated with the following OEM and cross-reference numbers:

Several of these numbers are documented as interchangeable drain-plug seal references across Mercury and Tohatsu applications. Always verify the original part number and engine model before ordering.

What This Part is Used For

The 9522P drain plug seal fits around the applicable gearcase drain or fill screw. When the screw is tightened, the seal helps create a barrier between the lower unit and the surrounding water.

A properly sealing drain screw helps:

• Keep lower-unit gear lubricant inside the gearcase
• Help prevent water intrusion around the drain screw
• Restore the sealing surface during routine gear-lube service
• Reduce the chance of gear-lube leakage at the screw

Mercury and Mariner Fitment

This aftermarket seal corresponds to applications using Mercury OEM 8M0082880 and related cross-reference numbers. Pro Marine currently lists the OEM version in the Mercury lower-unit drain plug and washer category for select small-outboard applications. :contentReference[oaicite:0]{index=0}

Johnson and Evinrude Fitment

Cross-reference data supplied for this application includes numerous Johnson and Evinrude 3-15 HP four-stroke model families. Verify the complete model number, including the suffix, before ordering.

Tohatsu and Nissan Outboard Fitment

The 9522P also corresponds to Tohatsu and Nissan drain-plug seal applications associated with the 332-60006-0 / 332-60006-1 family of part numbers. Independent cross-reference sources also associate those Tohatsu numbers with Mercury 8M0082880 and 95220. :contentReference[oaicite:1]{index=1}

Nissan / Tohatsu Parts Diagram Applications

The supplied application data shows this seal appearing in multiple assemblies and parts diagrams, including:

• Assembly Kit / Assembly Kits
• Bar Handle
• Bracket Reverse Lock
• Carburetor
• Cylinder Crank Case Assembly
• Cylinder Crankcase Assembly
• Cylinder Crankcase and Reed Valve
• Cylinder Head
• Drive Housing / Gear Case
• Drive Shaft Housing
• Drive Shaft Housing / Gear Case
• Drive Shaft Housing / Gear Case / Steering Handle
• Electric Starter
• Fuel Pump
• Fuel Tank Remote
• Gear Case
• Gear Case / Drive Shaft
• Gear Shift
• Inlet / Reed Valve
• Magneto
• Motor Cover
• Piston / Crank Shaft
• Recoil Starter
• Remote Control
• Starter Lock
• Throttle Mechanism
• Transmission / Water Pump

Genuine Mercury OEM Version Available

Mercury OEM Drain Plug Seal - 8M0082880

Prefer the genuine Mercury-branded component? Pro Marine also stocks Mercury OEM 8M0082880.

Both listings give customers a choice between the OEM Mercury part and the Pro Marine aftermarket replacement.

View Mercury OEM 8M0082880

Pro Marine or OEM Mercury?

Gear-Lube Service Tips

• Inspect the drain and fill screw seals whenever the lower-unit oil is changed.
• Replace seals that are damaged, distorted, hardened or questionable.
• Clean the drain screw and sealing surface before reassembly.
• Use the correct gear lubricant for the engine and gearcase.
• Install and tighten the drain/fill screws according to the manufacturer's procedure.
• Inspect for leakage after service.
• If the drained lubricant appears milky, investigate possible water intrusion before returning the engine to service.

Key Features and Benefits

• Pro Marine aftermarket drain plug seal
• Part number 9522P
• Replacement option for Mercury 8M0082880 applications
• Cross-references Mercury 95220 and 8M0075255 applications
• Cross-references Tohatsu 332600060 / 332600061 applications
• Used on select Mercury and Mariner lower units
• Application data includes select Johnson and Evinrude models
• Application data includes select Nissan and Tohatsu models
• Helps seal the applicable lower-unit drain/fill screw
• OEM Mercury version also available

FAQ

What is Pro Marine 9522P?
It is an aftermarket lower-unit drain plug seal / washer for select outboard applications.

Does 9522P replace Mercury 8M0082880?
This Pro Marine version is offered as the aftermarket alternative for applications using Mercury 8M0082880 and its associated cross references.

Does it replace Mercury 95220?
Yes. 95220 is part of the cross-reference family associated with 8M0082880. :contentReference[oaicite:2]{index=2}

Does it cross to Tohatsu 332600060?
Cross-reference sources associate Tohatsu 332-60006-0 / 332600060 and 332-60006-1 / 332600061 with Mercury 8M0082880 and 95220 applications. :contentReference[oaicite:3]{index=3}

Does this fit Johnson and Evinrude?
The supplied fitment data includes numerous Johnson and Evinrude four-stroke model families from 3-15 HP. Verify the complete model number before ordering.

Does this fit Nissan and Tohatsu?
Yes, the supplied fitment data includes numerous Nissan applications and a specifically listed 1996 Tohatsu 90 HP application. Verify the exact engine model and original part number because not every engine within a listed horsepower range uses the same seal.

Do you stock the genuine Mercury version?
Yes. Pro Marine also stocks Mercury OEM 8M0082880 .

Searchable Part Numbers

9522P, 8M0082880, 8M0075255, 8M0188617, 898101080, 95220, 95220010, 18-60103, 18-72656, 332600060, 332600060M, 332600061, 332600061M, 5040030

Searchable Terms

Pro Marine drain plug seal, Mercury drain plug seal aftermarket, Mercury lower unit drain washer, Tohatsu drain plug gasket, Nissan drain plug seal, Johnson drain plug seal, Evinrude drain plug washer, gearcase drain screw seal, lower unit drain gasket, gear lube drain plug washer