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Pro Marine Drain Plug Seal - 9522P

Aftermarket Lower Unit Drain Screw Seal for Mercury Tohatsu and More
Item #: 9522P  Cross Reference#: 18-60103, 18-72656, 332600060, 332600060M, 332600061, 332600061M, 5040030, 8M0082880, 898101080, 95220, 95220010  
Manufacturer Item: 8M0082880
Manufacturer: Pro Marine
Available: In Stock
1.0000
0.97
Each
Quantity:
Quantity Price
1 0.97
9522P Drain Seal

Pro Marine Aftermarket Gearcase Drain Plug Seal

Pro Marine Lower Unit Drain Plug Seal - 9522P

Pro Marine 9522P is an aftermarket gearcase drain plug seal / washer for select Mercury, Mariner, Johnson, Evinrude, Nissan and Tohatsu outboard applications.

This seal installs at the applicable lower-unit drain or fill screw and helps keep gear lubricant inside the gearcase while helping prevent water from entering around the screw.

Pro Marine also stocks the genuine Mercury OEM 8M0082880 drain plug seal for customers who prefer the original Mercury-branded part.

Pro Marine 9522P

Part Type: Lower Unit Drain Plug Seal / Washer
Manufacturer: Pro Marine
OEM or Aftermarket: Aftermarket
Application: Select Outboard Gearcase Drain and Fill Screws
Pro Marine Item #: 9522P

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:

Cross Reference Numbers
18-60103, 18-72656, 332600060, 332600060M, 332600061, 332600061M, 5040030, 8M0075255, 8M0082880, 8M0188617, 898101080, 95220, 95220010

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
Inspect the Seal Every Time You Service the Gearcase

The drain-plug seal is a small part with an important job.

Inspect it whenever gear lube is drained. Replace the seal if it is damaged, distorted, hardened or otherwise unsuitable for reuse.

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}

Mercury Application Serial Range / Notes
4 / 5 / 6 HP Carb 0R411838-Present
5 HP Propane 0R936270-1R280495
6 HP EFI 2-Cylinder 209cc 1R363055-Present
8 HP EFI 2-Cylinder 209cc 1R281445-Present
9.9 HP EFI 2-Cylinder 209cc 1R281445-Present
9.9 HP EFI ProKicker 2-Cylinder 209cc 1R281445-Present
9.9 HP EFI ProKicker 2-Cylinder 333cc 1R008146-1R278792
10 HP EFI 2-Cylinder 333cc 0R833820-Present
15 HP EFI 2-Cylinder 333cc 0R833820-Present
15 HP EFI SeaPro 2-Cylinder 333cc 0R833820-Present
20 HP EFI 2-Cylinder 333cc 0R833820-Present
25 HP EFI 3-Cylinder 1R154758-Present
25 HP EFI SeaPro 3-Cylinder 1R154758-Present
25 HP EFI Jet 3-Cylinder 1R154758-Present
30 HP EFI 3-Cylinder 1R154758-Present

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.

Brand Horsepower Model Families
Johnson 3 HP B3R4, B3RG4
Johnson 4 HP B4R4, B4RG4, B4RGL4, B4RL4
Johnson 6 HP B6R4, B6RG4, B6RGL4, B6RL4, B6RX4
Johnson 10 HP B10EGL4, B10EL4, B10PL4, B10PX4, B10R4, B10RG4, B10RGL4, B10RL4, B10TEL4, B10TPL4, B10TPX4
Johnson 15 HP B15PL4, B15R4, B15RG4, B15RGL4, B15RL4, B15TE4, B15TEL4
Evinrude 3 HP E3R4, E3RG4
Evinrude 4 HP E4R4, E4RL4
Evinrude 6 HP E6R4, E6RG4, E6RGL4, E6RL4, E6RX4
Evinrude 10 HP E10EL4, E10PGL4, E10PL4, E10PX4, E10R4, E10RG4, E10RGL4, E10RL4, E10TEL4, E10TPL4, E10TPX4
Evinrude 15 HP E15PGL4, E15PL4, E15R4, E15RG4, E15RGL4, E15RL4, E15TE4, E15TEG4, E15TEL4

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}

Brand Horsepower Years Shown in Application Data
Nissan2 HP2006
Nissan2.5 HP2002, 2003, 2006
Nissan3.5 HP2002, 2003, 2006
Nissan4 HP2002, 2005
Nissan5 HP2002, 2003, 2005
Nissan6 HP2002, 2005
Nissan8 HP2003, 2004, 2006
Nissan9.8 HP2003, 2004, 2006
Nissan9.9 HP2003
Nissan15 HP2002, 2003, 2008
Nissan18 HP2002, 2003
Nissan20 HP2008
Nissan25 HP2002, 2003
Nissan30 HP2002, 2003
Nissan35 HP2002
Nissan40 HP2002, 2003, 2004, 2006
Nissan50 HP2002, 2003, 2006
Nissan60 HP2003
Nissan70 HP2003, 2006
Nissan90 HP1996, 2006
Tohatsu90 HP1996
Nissan115 HP2006
Nissan120 HP2002, 2003
Nissan140 HP2002, 2003

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
Important Tohatsu / Nissan Fitment Note

The application data spans many horsepower ranges, years and gearcase configurations. A listed horsepower does not mean every engine of that horsepower uses this seal.

Verify the exact model, year and original drain-plug seal number before ordering.

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?

Option Part Number Brand
Aftermarket 9522P Pro Marine
OEM 8M0082880 Mercury Marine

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 .

Dealer Discounts & Store Policies

Dealer / Marine Industry Discounts

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Shipping Policy

  • Free shipping on orders over $100 continental U.S.
  • Orders ship via UPS, USPS, and FedEx.
  • Orders received before 5:30 PM EST ship the same business day.
  • Typical delivery time is 1-5 business days.

30-Day Return Policy

  • Returns accepted within 30 days of delivery.
  • Parts must be new, unused, and in original packaging.
  • Installed parts are not returnable.
  • Return authorization is required before sending items back.

Need help with a return or order question?
Contact Us
Phone: 941-721-3000


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

Brand

OEM or Aftermarket
Aftermarket
Manufacturer
Pro Marine