Carburetor Assembly – Fits Tohatsu/Nissan 15HP & 20HP 4-Stroke (Replaces 3BJ-03100-0, 3BH-03100-0)
Carburetor Assembly – Fits Tohatsu/Nissan 15HP & 20HP 4-Stroke (Replaces 3BJ-03100-0, 3BH-03100-0) 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
Carburetor Assembly – Fits Tohatsu/Nissan 15HP & 20HP 4-Stroke ...
Product Details
This is a complete Carburetor Assembly – Fits Tohatsu/Nissan 15HP & 20HP 4-Stroke outboard engines, including F15C, MFS15C, NSF15C, F20C, and MFS20C models manufactured between 2008 and 2014. It is engineered as a direct-fit, aftermarket replacement to restore original engine performance and fuel delivery.
It serves as a direct replacement for Tohatsu/Nissan part numbers 3BJ-03100-0, 3BH-03100-0, 3AZ-03133-0, 3BH031000M, 3AZ031330M, 3BJ031000M, and 3BA-03133-0.
- Designed for simple, direct-replacement installation.
- Features a manual choke connection as per original specifications.
- Constructed with a durable metal housing for longevity in marine environments.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket suppliers.
| Brand | Part Number |
|---|---|
| Tohatsu | 3BJ-03100-0 |
| Tohatsu | 3BH-03100-0 |
| Tohatsu | 3AZ-03133-0 |
| Tohatsu | 3BH031000M |
| Tohatsu | 3AZ031330M |
| Tohatsu | 3BJ031000M |
| Tohatsu | 3BA-03133-0 |
Engine & Model Compatibility
Confirm your engine model and year in the tables below.
This carburetor fits specific 4-stroke 15HP and 20HP Tohatsu outboard engines from 2008–2014.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Tohatsu | F15C | 15 | 4-Stroke | 2008–2014 | 3BH-03100-0/3BH031000M | MF/EF version |
| Tohatsu | F15C | 15 | 4-Stroke | 2008–2014 | 3AZ-03133-0/3BH-03133-0/3BH031330M | EP/EPT version |
| Tohatsu | MFS15C | 15 | 4-Stroke | 2008–2014 | 3BH-03100-0/3BH031000M | MF/EF version |
| Tohatsu | F20C | 20 | 4-Stroke | 2008–2014 | 3BJ-03100-0 | |
| Tohatsu | MFS20C | 20 | 4-Stroke | 2008–2014 | 3BJ-03100-0 |
This carburetor also fits specific 4-stroke 15HP and 20HP Nissan outboards from 2009.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Nissan | NSF15C | 15 | 4-Stroke | 2009 | 3BH-03100-0/3BH031000M | MF/EF version |
| Nissan | NSF15C | 15 | 4-Stroke | 2009 | 3AZ-03133-0/3BH-03133-0/3BH031330M | EP/EPT version |
| Nissan | NSF20C | 20 | 4-Stroke | 2009 | 3BJ-03100-0 |
Technical Specs
- Product Type
- Carburetor Assembly
- Installation
- Direct Replacement
- Fuel Type
- Gasoline
- Connection
- Manual Choke
- Housing Material
- Metal
- Housing Color
- Silver/Aluminum
- Fitting Type
- Direct Mount
- Warranty
- 1 year (aftermarket)
- Other Technical Attributes
- Not an OEM component; manufactured to OEM specifications
What’s in the Box
- 1 x Carburetor Assembly (Replaces 3BJ-03100-0, 3BH-03100-0, 3AZ-03133-0)
Installation Notes
- Ensure the engine is off and cool. Disconnect the spark plug wire and shut off the fuel supply.
- Carefully disconnect the fuel lines and any linkage attached to the old carburetor, noting their positions.
- Remove the mounting bolts or nuts holding the old carburetor in place and remove it from the engine.
- Clean the mounting surface on the engine intake manifold, ensuring no old gasket material remains.
- Install the new carburetor with a new gasket, tightening the mounting bolts evenly.
- Reconnect the fuel lines and linkage to their original positions on the new carburetor.
- Turn the fuel supply back on and check for any leaks. Reconnect the spark plug wire.
- Start the engine and adjust the idle speed if necessary, following the engine manufacturer's guidelines.
Troubleshooting & FAQ
How can I confirm this carburetor fits my engine?
The best way is to compare your original part number to the ones listed in our "Part Number Matrix." Also, check your engine model and year against our "Engine & Model Compatibility" tables. If the numbers and models match, it will fit.
What are common signs of a failing carburetor?
Symptoms include difficulty starting, rough idling, stalling, poor acceleration, black smoke from the exhaust (running rich), or fuel leaks. If your engine exhibits these issues, a worn or clogged carburetor is a likely cause.
Is any adjustment needed after installation?
This carburetor is pre-adjusted to factory settings, but minor idle speed or air/fuel mixture adjustments may be necessary depending on your specific engine's condition, altitude, and temperature. We recommend following your engine’s service manual.
Can I clean my old carburetor instead of replacing it?
Cleaning can sometimes resolve issues caused by dirt or old fuel deposits. However, internal components like gaskets, seals, and jets can wear out over time, leading to performance issues that cleaning alone cannot fix. Replacement ensures all components are new.
What is the difference between the 'MF/EF' and 'EP/EPT' versions?
These designations refer to different Tohatsu/Nissan model types: MF (Manual Start, Tiller Handle), EF (Electric Start, Tiller Handle), EP (Electric Start, Remote Control), and EPT (Electric Start, Power Trim/Tilt, Remote Control). This carburetor is designed to fit the specific part numbers associated with those versions as detailed in the compatibility tables.
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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