Carburetor Gasket – Fits Yamaha 40HP Outboards (Replaces 66T-14536-01)
Carburetor Gasket – Fits Yamaha 40HP Outboards (Replaces 66T-14536-01) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Product Details
This Carburetor Gasket – Fits Yamaha 40HP Outboards (Replaces 66T-14536-01) is designed for a precise fit on Yamaha 2-stroke 40HP outboard engines, including models E40X, 40X, 40XMH, and E40XMH, manufactured between 1998 and 2013. It ensures a reliable seal for optimal carburetor performance.
This part is a direct replacement for Yamaha OEM part numbers 66T-14536-01 and 66T-14536-00.
- Engineered for direct OEM replacement and fit.
- Compatible with standard gasoline fuel systems.
- Produced to meet or exceed original factory specifications.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket suppliers.
| Brand | Part Number |
|---|---|
| Yamaha | 66T-14536-01 |
| Yamaha | 66T-14536-00 |
Engine & Model Compatibility
Confirm your engine model and year in the table below to ensure correct fitment.
For Yamaha owners, this part is compatible with the "X" and "E-series" 40HP 2-stroke models listed.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | 40X | 40 | 2-Stroke | 1998–2013 | 66T-14536-01 | |
| Yamaha | 40XMH | 40 | 2-Stroke | 1998–2013 | 66T-14536-01 | |
| Yamaha | 40XW | 40 | 2-Stroke | 1998–2013 | 66T-14536-01 | |
| Yamaha | E40X | 40 | 2-Stroke | 1998–2013 | 66T-14536-01 | |
| Yamaha | E40MLH | 40 | 2-Stroke | 1998–2013 | 66T-14536-01 | |
| Yamaha | E40XMH | 40 | 2-Stroke | 1998–2013 | 66T-14536-01 | |
| Yamaha | E40XMHS | 40 | 2-Stroke | 1998–2013 | 66T-14536-01 | |
| Yamaha | E40XWH | 40 | 2-Stroke | 1998–2013 | 66T-14536-01 | |
| Yamaha | E40XWL | 40 | 2-Stroke | 1998–2013 | 66T-14536-01 | |
| Yamaha | E40XWS | 40 | 2-Stroke | 1998–2013 | 66T-14536-01 | |
| Yamaha | E40XWT | 40 | 2-Stroke | 1998–2013 | 66T-14536-01 |
Technical Specs
- Product Type
- Carburetor Gasket
- Installation
- Direct OEM replacement
- Fuel Type
- Gasoline
- Housing Material
- Gasket Material
- Dimensions
- 9.5 cm × 8.0 cm × 0.3 cm (3.74" × 3.15" × 0.12")
- Weight
- 0.01 kg (0.022 lb)
- Other Technical Attributes
- Produced to OEM specifications
What’s in the Box
- 1 x Gasket (Replaces 66T-14536-01/66T-14536-00)
Installation Notes
- Ensure the engine is off and cool. Disconnect the battery and fuel lines to prevent accidents.
- Carefully remove the airbox assembly and then unbolt the carburetor from the intake manifold.
- Note the location of all linkages and hoses before disconnecting them. Taking photos can be helpful.
- Disassemble the carburetor on a clean workbench. Remove the old gasket from its mounting surface.
- Thoroughly clean the mating surfaces of any old gasket material or debris. A plastic scraper and a suitable solvent can be used.
- Position the new gasket correctly, ensuring all bolt holes and passages align perfectly.
- Reassemble the carburetor components and reinstall it onto the engine.
- Reconnect all fuel lines, linkages, and the airbox. Reconnect the battery.
- Before starting the engine, prime the fuel system and check for any leaks around the carburetor.
Troubleshooting & FAQ
How can I confirm this gasket is the right one for my Yamaha outboard?
The best way is to match your engine's model and year to our compatibility table. Also, cross-reference your existing part number with the numbers listed in the Part Number Matrix (66T-14536-01, 66T-14536-00). Visual comparison is always a good final check.
What are common symptoms of a failed carburetor gasket?
Symptoms include rough idling, stalling, poor acceleration, fuel leaks around the carburetor, or a noticeable vacuum leak sound (hissing). These issues are caused by an improper air-fuel mixture due to a compromised seal.
Should I use sealant with this gasket?
No, this gasket is designed to be installed dry. Applying sealants can cause the gasket to swell or shift, leading to an improper seal or blockage of small fuel/air passages within the carburetor.
How often should a carburetor gasket be replaced?
It should be replaced anytime the carburetor is removed or disassembled for cleaning or service. Over time, gaskets can compress, crack, and lose their sealing ability, so it's good practice not to reuse them.
OEM vs. Aftermarket: What’s the difference?
This listing is for an aftermarket replacement, not an original equipment manufacturer (OEM) part. It is engineered in an ISO 9002 facility to meet or exceed OEM-level specifications using comparable materials and is batch-inspected to ensure quality and performance.
What are your shipping speeds and costs?
We ship worldwide, and standard shipping is free to most regions. Typical transit time is 5–15 days. Expedited shipping options, where available, will be presented at checkout.
What is the warranty and return policy on this part?
This part is covered by a 1-year warranty against manufacturing defects under normal marine use. Should an issue arise, contact our support team with your order details. Returns are accepted within our standard window for unused items in their original condition. Please see our full policy page or contact us for instructions.
Safety & Important Info
- Verify images and specifications against your original part before ordering. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement component, not an OEM part. Brand names and part numbers are used for reference purposes only.
- Professional installation is highly recommended for safety and to ensure proper performance. Incorrect installation can lead to fuel leaks or engine damage.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and rigorously tested for real-world reliability.
- Fast Global Fulfillment — With free standard delivery to most regions, you can expect your parts in 5–15 days.
- Manufacturer-Direct Value — We offer fair, direct pricing without compromising on materials, quality control, or durability.
Payment & Security
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