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Washer – Fits Yamaha/Parsun 40-60HP Outboard Motors (Replaces 90201-22429-00)

Regular price $0.00
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Washer – Fits Yamaha/Parsun 40-60HP Outboard Motors (Replaces 90201-22429-00) 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 aftermarket Washer – Fits Yamaha/Parsun 40-60HP Outboard Motors (Replaces 90201-22429-00) is designed for direct compatibility with a range of Yamaha and Parsun outboard motors. It fits Yamaha 40HP, 50HP, 55HP, F50, and F60 models, as well as Parsun 40HP to 60HP outboards, serving as a critical hardware component within the gearcase assembly.

It is a direct replacement for Yamaha part numbers 90201-22429-00 and 902012242900, Parsun PAT40-04050007, and aftermarket equivalent AM90201-22429.

  • Installation Method: Direct fit
  • Primary Function: Hardware component for gearcase assembly

Part Number Matrix

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

Brand Part Number
Yamaha 90201-22429-00
Yamaha 902012242900
Parsun PAT40-04050007
Aftermarket AM90201-22429

Engine & Model Compatibility

Confirm your engine model/year in the table below.

This component is verified to fit the following Yamaha outboard models and series. Please check your specific model and serial number against the listed part numbers.

Designed for compatibility with specific Parsun four-stroke models that share a component architecture with Yamaha engines.

Brand Model Rated HP Stroke OEM Part No. Notes
Yamaha 40XMH 40 2-Stroke 90201-22429-00 Found on gearcase assembly
Yamaha 40XE 40 2-Stroke 90201-22429-00 Found on gearcase assembly
Yamaha 40-50HP 40-50 90201-22429-00 Found on gearcase assembly
Yamaha 55ED 55 2-Stroke 90201-22429-00 Found on gearcase assembly
Yamaha 55ET 55 2-Stroke 90201-22429-00 Found on gearcase assembly
Yamaha F50 50 4-Stroke 90201-22429-00 Found on gearcase assembly
Yamaha F60 60 4-Stroke 90201-22429-00 Found on gearcase assembly
Parsun F40 40 4-Stroke PAT40-04050007 Found on lower casing & drive 1 parts
Parsun F50 50 4-Stroke PAT40-04050007 Found on lower casing & drive 1 parts
Parsun F60 60 4-Stroke PAT40-04050007 Found on lower casing & drive 1 parts

Technical Specs

Product Type
Washer/Plate Washer
Installation
Direct fit
Dimensions
Height: 0.3; Width: 5.0; Length: 8.0;
Other Technical Attributes
Hardware component for gearcase assembly

What’s in the Box

  • 1 x Plate Washer (90201-22429-00/PAT40-04050007)

Installation Notes

  1. Ensure the engine is off and the propeller is secured. Disconnect the battery.
  2. Access the gearcase assembly according to your engine's service manual. This may involve removing the lower unit.
  3. Identify the old plate washer's location. Note the orientation of surrounding components before removal.
  4. Remove the worn or damaged washer and clean the surface area of any debris or corrosion.
  5. Install the new washer, ensuring it is seated correctly and flush with the mating surfaces.
  6. Reassemble the gearcase and lower unit, torquing all bolts to the manufacturer's specified values.
  7. Reconnect the battery and test the engine's operation in a safe environment (e.g., using a test tank) before returning to the water.

Troubleshooting & FAQ

How do I know if this is the right washer for my engine?

This washer fits a specific set of Yamaha and Parsun models from 40HP to 60HP. The most reliable way to confirm fitment is to match your existing part number to one of the equivalents listed in our Part Number Matrix: 90201-22429-00, PAT40-04050007, or AM90201-22429. Visually comparing your old part to our product images is also a critical verification step.

Where is this washer typically installed?

This plate washer is located within the gearcase (lower unit) assembly on compatible Yamaha and Parsun outboard motors. Its precise location can be confirmed by consulting your engine's official service manual and parts diagram for the gearcase or lower casing sections.

What are the signs of a failed washer?

Signs of a failing or worn plate washer can include excessive vibration, unusual noises (grinding or whining) from the lower unit, or visible metal shavings in the gear lube. During routine maintenance or gearcase service, any visible deformation, cracking, or severe corrosion on the washer indicates it needs immediate replacement.

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.

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