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Washer – Fits Yamaha & Parsun Outboards (Replaces PAF4-04000006, 90201-08818-00)

Sale price $3.99 Regular price $6.00
Shipping calculated at checkout.

Washer – Fits Yamaha & Parsun Outboards (Replaces PAF4-04000006, 90201-08818-00) is backordered and will ship as soon as it is back in stock.


Worry-free returns

You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Delivery and Shipping

Free standard shipping on all orders under 1 KG

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

This high-quality Washer – Fits Yamaha & Parsun Outboards (Replaces PAF4-04000006, 90201-08818-00) is engineered for a precise fit on a range of 4-stroke outboard engines. It is designed for Yamaha models including the F2.5, F4, F5, F6, F15, and F20 (2002–present) and compatible Parsun models such as the F2.6, F4, F5, F15, and F20.

This part serves as a direct interchange for Yamaha 90201-08818-00, 90430-08143-00, 90430-08800-00; Mercury 12-831246, 831246; Parsun F4-04000006; and other aftermarket equivalents.

  • Features a durable, corrosion-resistant construction suitable for marine environments.
  • Installs with basic assembly hardware.
  • This package includes a complete set of four washers.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Brand Part Number
Yamaha 90201-08818-00
Yamaha 90430-08143-00
Yamaha 90430-08800-00
Mercury 12-831246
Mercury 831246
Parsun F4-04000006
Aftermarket PAF4-04000006

Engine & Model Compatibility

Confirm your engine model/year in the table below.

For Yamaha engines, this washer is found in the Cylinder & Crankcase or Upper Casing assemblies of the specified models.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Yamaha F2.5 AMH/MLH/MSH/MHA (ALL) 2.5 4-Stroke 2003+ 90201-08818-00 Cylinder & Crankcase assembly (position 17)
Yamaha F4A/MSHAC/AMH/MLHB-S/MH/MLHE 4 4-Stroke 2002–2009 90201-08818-00 Cylinder & Crankcase assembly (position 22)
Yamaha F15A/F20A BM (FW) 15-20 4-Stroke 90201-08818-00 Upper Casing assembly (position 3)

For Parsun engines, this part is a direct replacement used in various crankcase assemblies.

Brand Model Rated HP Stroke OEM Part No. Notes
Parsun F2.6 2.6 4-Stroke PAF4-04000006 Cylinder & Crankcase 2 assembly (position 17)
Parsun F4 & F5 4-5 4-Stroke PAF4-04000006 Cylinder & Crankcase 2 assembly (position 22)

Technical Specs

Product Type
Washer
Installation
Basic assembly hardware
Housing Material
Metal (likely steel)
Dimensions
Height: 0.3 cm, Width: 10.5 cm, Length: 7.5 cm
Weight
0.01 kg (0.022 lb)
Other Technical Attributes
Durable, corrosion-resistant construction for marine applications

What’s in the Box

  • 4 x Washer (PAF4-04000006/90201-08818-00)

Installation Notes

  1. Ensure the engine is off and the battery is disconnected for safety.
  2. Access the component assembly where the washer is located (e.g., Cylinder & Crankcase or Upper Casing). Refer to your service manual for specific disassembly steps.
  3. Carefully remove the old, worn washer, noting its orientation.
  4. Clean the component surfaces of any dirt, corrosion, or old gasket material.
  5. Position the new washer correctly onto the bolt or fitting.
  6. Reassemble the components, tightening all fasteners to the manufacturer's recommended torque specifications.
  7. Reconnect the battery and test the engine for proper operation and to check for any leaks.

Troubleshooting & FAQ

How do I know if this washer fits my engine?

The best way is to verify your engine's model, year, and serial number against the compatibility tables above. Also, matching the OEM part number (e.g., 90201-08818-00) from your service manual or existing part is a reliable confirmation method.

Is this part sold individually?

No, this product is sold as a set of four washers to ensure you have everything needed for a complete service or replacement.

What are the signs of a failing washer?

Common symptoms include fluid leaks (oil or fuel) around the fitting, visible corrosion or degradation of the old washer, or components that feel loose despite being tightened. Replacing them during routine service can prevent these issues.

What is these washers made of?

It is made from a durable, corrosion-resistant metal, most likely a grade of steel selected for its resilience in harsh marine environments, ensuring a long-lasting and reliable seal.

OEM vs. Aftermarket?

This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.

Shipping speed & cost?

We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.

Warranty & returns?

Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.

Safety & Important Info

  • Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
  • This is an aftermarket replacement, not an OEM component.
  • Professional installation is recommended for safety and performance.

About Sea Sierra

  • Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
  • Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
  • Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.

Payment & Security

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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

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