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Seal, Airbox – Fits Yamaha Outboard 40-90hp (Replaces 6H3-14457-01-00)

Sale price $5.94 Regular price $9.00
Shipping calculated at checkout.

Seal, Airbox – Fits Yamaha Outboard 40-90hp (Replaces 6H3-14457-01-00) 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 Seal, Airbox – Fits Yamaha Outboard 40-90hp is a high-quality replacement for Yamaha 3-cylinder 2-Stroke outboards from 40hp to 70hp (1984–2008). It creates an essential seal for the airbox and intake system, preventing dirt and moisture from entering the engine and ensuring optimal performance.

It is a direct interchange for Yamaha OEM part numbers 6H3-14457-01-00, 6H3-14457-02-00, and Marine Pro part 2217AP.

  • Engineered for direct-fit installation.
  • Constructed from durable rubber to resist fuel, oil, and heat.
  • Crucial for maintaining a clean and sealed air intake path.

Part Number Matrix

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

Brand Part Number Superseded By Notes
Yamaha 6H3-14457-01-00 6H3-14457-02-00 Original OEM part number.
Yamaha 6H3-14457-02-00 Current OEM part number.
Marine Pro 2217AP Aftermarket cross-reference.

Engine & Model Compatibility

Confirm your engine model/year in the table below.

This part is known to fit the following Yamaha Outboard models:

Brand Model Rated HP Stroke Years OEM Part No. Notes
Yamaha 40E 40 2-Stroke 1986 6H3-14457-01-00 Superseded by 6H3-14457-02-00
Yamaha 40H 40 2-Stroke 1985–1987 6H3-14457-01-00 Superseded by 6H3-14457-02-00
Yamaha 40N 40 2-Stroke 1984 6H3-14457-01-00 Superseded by 6H3-14457-02-00
Yamaha 40V 40 2-Stroke 2001–2002 6H3-14457-01-00 Superseded by 6H3-14457-02-00
Yamaha 50D 50 2-Stroke 1985–1987 6H3-14457-01-00 Superseded by 6H3-14457-02-00
Yamaha 50E 50 2-Stroke 1984 6H3-14457-01-00 Superseded by 6H3-14457-02-00
Yamaha 50H 50 2-Stroke 2001–2002 6H3-14457-01-00 Superseded by 6H3-14457-02-00
Yamaha 60F 60 2-Stroke 1984–1987 6H3-14457-01-00 Superseded by 6H3-14457-02-00
Yamaha 70B 70 2-Stroke 1985–1987 6H3-14457-01-00 Superseded by 6H3-14457-02-00
Yamaha 70E 70 2-Stroke 1984 6H3-14457-01-00 Superseded by 6H3-14457-02-00
Yamaha 3 Cyl Models 40 2-Stroke 1984–2006 6H3-14457-01-00 Superseded by 6H3-14457-02-00
Yamaha 3 Cyl Models 50 2-Stroke 1986–2008 6H3-14457-01-00 Superseded by 6H3-14457-02-00
Yamaha 3 Cyl Models 60 2-Stroke 1991–2006 6H3-14457-01-00 Superseded by 6H3-14457-02-00
Yamaha 3 Cyl Models 70 2-Stroke 1984–2008 6H3-14457-01-00 Superseded by 6H3-14457-02-00

Technical Specs

Product Type
Airbox Seal
Installation
Direct replacement
Housing Material
Rubber
Dimensions
14.0" (L) x 11.5" (W) x 0.3" (H)
Other Technical Attributes
Used on the airbox/intake system

What’s in the Box

  • 1 x Seal (Replaces 6H3-14457-01-00)

Installation Notes

  1. Ensure the engine is turned off and the battery is disconnected for safety.
  2. Locate and remove the engine's airbox cover, which is typically secured by clips or bolts.
  3. Carefully pull out the old airbox seal from its groove.
  4. Thoroughly clean the groove on the airbox housing and cover, removing any dirt, oil, or old seal residue.
  5. Gently press the new seal into the groove, ensuring it is fully seated and not twisted.
  6. Re-install the airbox cover securely and reconnect the battery before starting the engine.

Troubleshooting & FAQ

What engines does this airbox seal fit?

This seal is made for a wide range of Yamaha 3-cylinder, 2-stroke outboard motors from 40hp to 70hp, primarily covering model years from 1984 to 2008. Always check the detailed compatibility table to confirm your specific model and year.

What are the signs of a failing airbox seal?

A damaged or worn airbox seal can cause rough idling, decreased engine performance, stalling, or an audible whistling sound due to an air leak. A visual inspection may reveal a cracked, hardened, or deformed seal.

What is the difference between part 6H3-14457-01-00 and 6H3-14457-02-00?

The part number 6H3-14457-02-00 is the official OEM replacement that superseded 6H3-14457-01-00. They are functionally identical in terms of fit and performance. This aftermarket seal is designed to replace both part numbers.

Can I install this seal myself?

Yes, this is a straightforward replacement for those with basic mechanical skills. It requires removing the airbox cover, swapping the seal, and reattaching the cover. No special tools are typically needed.

Why is a good airbox seal important?

A proper seal is critical to prevent unfiltered air, water, and debris from entering the engine's intake. An effective seal ensures the engine receives the correct air-fuel mixture, promoting efficiency, performance, and longevity.

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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