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Carburetor Assembly – Fits Yamaha & Mercury 20-25 HP 4-Stroke Outboard (Replaces 65W-14901-10/11/12, 883314T03)

Regular price $71.88

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Shop with confidence. If you’re not completely satisfied, eligible items may be returned within the return window, provided they are unused and in original packaging.


If the return is due to our error or a defective item, we’ll make it right.


Please contact us before returning any item.

Delivery and Shipping

Orders are typically processed within 1–2 business days.


U.S. orders usually arrive within 6–15 days, depending on stock location and destination.


International delivery times may vary due to customs processing.


Tracking information will be provided once your order ships.

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 is a direct-replacement Carburetor Assembly for Yamaha & Mercury 20-25 HP 4-Stroke Outboards, designed to restore performance and fuel efficiency. It fits Yamaha F20A and F25A series outboards manufactured between 1999 and 2006, as well as select Mercury 20-25 HP 4-stroke models requiring the part numbers listed below.

It serves as a direct interchange for Yamaha part numbers 65W-14901-00-00 through 65W-14901-60-00, Mercury 883314T03 and 830276A18, and aftermarket equivalents from Sierra and Mallory.

  • Engineered for direct replacement installation.
  • Constructed from a durable aluminum alloy for longevity.
  • Designed for 4-stroke gasoline marine engines.

Part Number Matrix

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

Brand Part Number
Yamaha 65W-14901-00-00
Yamaha 65W-14901-10-00
Yamaha 65W-14901-11-00
Yamaha 65W-14901-12-00
Yamaha 65W-14901-15-00
Yamaha 65W-14901-50-00
Yamaha 65W-14901-60-00
Mercury 883314T03
Mercury 830276A18
Mercury 883314T1
Mercury 830276A5
Mercury 830276T7
Mercury 830276A7
JLM Marine 65W14901
Sierra 18-34602
Mallory 9-34602

Engine & Model Compatibility

Confirm your engine model/year in the table below.

For Yamaha models, this carburetor fits F20A and F25A series engines produced from 1999–2006. Please verify your specific model is listed.

For Mercury models, compatibility is based on part number cross-reference. Always verify your original part number before ordering.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Yamaha F20A 20 4-Stroke 1999–2006 65W-14901-10-00, 65W-14901-11-00, 65W-14901-12-00
Yamaha F25A 25 4-Stroke 1999–2006 65W-14901-10-00, 65W-14901-11-00, 65W-14901-12-00
Yamaha F25ESHA 25 4-Stroke 1999–2006 65W-14901-10-00, 65W-14901-11-00, 65W-14901-12-00 Verified with OEM parts diagram
Yamaha F25MSHZ 25 4-Stroke 2001 65W-14901-10-00, 65W-14901-11-00, 65W-14901-12-00 Customer verified fit
Mercury Various 20-25 4-Stroke 883314T03, 830276A18, 883314T1, 830276A5, 830276T7, 830276A7 Cross-reference only, verify fitment
Parsun F20 20 4-Stroke 1999–2006 Cross-referenced equivalent
Parsun F25 25 4-Stroke 1999–2006 Cross-referenced equivalent

Technical Specs

Product Type
Carburetor Assembly
Installation
Direct replacement
Fuel Type
Gasoline
Connection
Intake manifold mount
Housing Material
Aluminum alloy
Housing Color
Silver/metallic
Fitting Type
Manifold mount
Warranty
1-year manufacturer warranty against defects
Other Technical Attributes
4-Stroke design, OEM quality equivalent

What’s in the Box

  • 1 x Carburetor Assembly (65W-14901-10-00/65W-14901-11-00/65W-14901-12-00)

Installation Notes

  1. Disconnect the battery and shut off the fuel supply valve.
  2. Carefully drain any remaining fuel from the old carburetor into an approved container.
  3. Disconnect the fuel lines, throttle linkage, and choke linkage, noting their positions.
  4. Remove the nuts or bolts securing the carburetor to the intake manifold.
  5. Remove the old carburetor and any gasket material.
  6. Clean the intake manifold mounting surface thoroughly.
  7. Position the new carburetor with a new gasket and secure it with the mounting hardware.
  8. Reconnect the fuel lines, throttle, and choke linkages to their original positions.
  9. Turn on the fuel supply and reconnect the battery.
  10. Before starting the engine, prime the fuel system and check carefully for any leaks.
  11. Start the engine and allow it to warm up. Adjust idle speed as needed per the engine service manual.
  12. Perform a final check for fuel or air leaks with the engine running.

Troubleshooting & FAQ

How do I confirm this carburetor fits my engine?

The best way is to match your original part number to one listed in our Part Number Matrix. Also, check your engine model and year against our Engine & Model Compatibility table. If you are unsure, please contact us with your engine's serial number before ordering.

Is any tuning required after installation?

This carburetor is preset to factory specifications, but minor idle speed or air/fuel mixture adjustments may be necessary depending on your specific engine, altitude, and local fuel type. We recommend following your engine's service manual for tuning procedures.

What are the signs of a failing carburetor?

Common symptoms include hard starting, rough idling, stalling, poor acceleration, black smoke from the exhaust (running rich), or a strong smell of gasoline. These issues indicate that the fuel/air mixture is incorrect and the carburetor likely needs cleaning or replacement.

What is the main difference between this and an OEM part?

This is an aftermarket part designed to meet or exceed original equipment manufacturer (OEM) specifications for fit, form, and function. It offers a cost-effective solution without sacrificing quality or performance.

What maintenance does this part require?

To ensure long life, use high-quality, fresh fuel and a fuel stabilizer during off-season storage. Regularly inspect your fuel filter and replace it as needed to prevent debris from clogging the carburetor jets.

Is this carburetor compatible with ethanol-blended fuels?

Yes, this carburetor is designed to be compatible with modern gasoline, including fuels containing up to 10% ethanol (E10). However, using non-ethanol fuel is always recommended for marine engines to prevent long-term issues with fuel system components.

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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