Carburetor for Tohatsu, Nissan & Mercury Mariner 6–9.8 HP 2-Stroke Outboards – Replaces 3B2-03200-1, 3K9-03200-0, 3G0-03200-0 & Mercury 3303-803687 References
Carburetor for Tohatsu, Nissan & Mercury Mariner 6–9.8 HP 2-Stroke Outboards – Replaces 3B2-03200-1, 3K9-03200-0, 3G0-03200-0 & Mercury 3303-803687 References is backordered and will ship as soon as it is back in stock.
Worry-free returns
Worry-free returns
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
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.
Carburetor for Tohatsu, Nissan & Mercury Mariner 6–9.8 HP 2-Str...
Carburetor for Tohatsu, Nissan & Mercury Mariner 6–9.8 HP 2-Stroke Outboards – Replaces 3B2-03200-1, 3K9-03200-0, 3G0-03200-0 & Mercury 3303-803687 References is backordered and will ship as soon as it is back in stock.
Product Details
This replacement carburetor is intended for selected Tohatsu, Nissan, Mercury, and Mariner 6 HP, 8 HP, and 9.8 HP 2-stroke outboards. The company fitment records identify applications including Tohatsu M6B, M8B, and M9.8 models; Nissan NS9.8; and Mercury Mariner 6 HP, 8 HP, and 9.8 HP 2-stroke outboards.
Use the part-number references and engine information below to compare this carburetor with the component currently installed on your outboard before ordering. Model, horsepower, stroke, and the correct part-number application must all agree.
- Replacement carburetor assembly for selected small 2-stroke marine outboards.
- Listed for 6 HP, 8 HP, and 9.8 HP applications.
- Supplied as one carburetor assembly; this is not a multi-part kit.
Part Number References
The following manufacturer part numbers are listed as references for this replacement carburetor. Number formatting may vary between catalogs.
| Brand | Reference Part Numbers |
|---|---|
| Tohatsu / Nissan | 3B2-03200-1; 3K9-03200-0; 3G0-03200-0 |
| Tohatsu / Nissan alternate formats | 3B2032001; 3K9032000; 3G0032000; 3B2032001M; 3K9032000M; 3G0032000M |
| Mercury / Mariner | 3303-803687A04; 3303-803687A3; 3303-803687A2; 3303-803687T04; 3303-803687T03; 3303-803687T02 |
Engine and Model Compatibility
Compatibility is based on the company fitment records and should be confirmed against the identification plate, original carburetor, and applicable engine parts catalog. The 3K9-03200-0 carburetor assembly is also listed in engine catalog occurrences for Tohatsu M6/M8/M9.8B 2-stroke applications, including catalog years 2016 through 2024, with M8/M9.8B listings extending through 2026. These catalog occurrences do not replace model and serial-number verification.
| Brand | Model or Application | Rated HP | Stroke | Reference Numbers |
|---|---|---|---|---|
| Tohatsu | M6B | 6 HP | 2-Stroke | 3B2-03200-1, 3K9-03200-0, 3G0-03200-0 |
| Tohatsu | M8B | 8 HP | 2-Stroke | 3B2-03200-1, 3K9-03200-0, 3G0-03200-0 |
| Tohatsu | M9.8 | 9.8 HP | 2-Stroke | 3B2-03200-1, 3K9-03200-0, 3G0-03200-0 |
| Nissan | NS9.8 | 9.8 HP | 2-Stroke | 3B2-03200-1, 3K9-03200-0, 3G0-03200-0 |
| Mercury / Mariner | 6 HP, 8 HP, and 9.8 HP 2-stroke applications | 6–9.8 HP | 2-Stroke | 3303-803687A04, 3303-803687A3, 3303-803687A2, 3303-803687T04, 3303-803687T03, 3303-803687T02 |
Technical Specifications
- Product Type
- Carburetor assembly
- Application
- Selected 6 HP, 8 HP, and 9.8 HP 2-stroke outboards
- Compatible Brands
- Tohatsu, Nissan, Mercury, and Mariner
- Installation
- Replacement installation using the original engine mounting and control connections; verify configuration before fitting
- Fuel
- Gasoline
- Replacement Gasket References
- Tohatsu/Nissan gasket references 369-02011-0 and 369020110M; Mercury/Mariner gasket reference 27-16327. Gaskets are not listed as included with this carburetor assembly.
What's in the Box
- 1 × Carburetor assembly
Gaskets and other installation parts are not listed as included. Check the condition and part number of the existing gasket, and obtain the correct replacement gasket separately if required for your engine.
Installation Notes
- Confirm the engine brand, model, horsepower, 2-stroke configuration, and existing carburetor part number before installation.
- Shut off the fuel supply, disconnect the ignition or battery as appropriate, and allow the engine to cool.
- Remove the fuel line, throttle linkage, choke linkage, and other connections from the original carburetor, recording their positions before disassembly.
- Remove the mounting hardware and carefully take off the original carburetor.
- Clean the manifold mounting surface and remove old gasket material without allowing debris to enter the intake.
- Install the correct gasket if required by the engine application, then position the replacement carburetor.
- Reconnect the mounting hardware, fuel line, and control linkages. Tighten fasteners according to the engine manufacturer's service information.
- Check that the throttle and choke operate freely and return correctly before starting the engine.
- Restore the fuel supply, inspect for leaks, and follow the engine service manual for starting, idle-speed, and mixture checks.
Troubleshooting and FAQ
How do I confirm fitment?
Compare the part number on the existing carburetor with the reference numbers listed above, then confirm the engine brand, model, horsepower, and 2-stroke configuration. A matching number alone should not be used to ignore a model or serial-number difference.
Is this an OEM carburetor?
This listing is for a replacement carburetor assembly. The displayed manufacturer part numbers are reference numbers for application matching; the replacement itself should not be assumed to be a genuine OEM component.
Is a gasket included?
No gasket is listed as included. The company records identify 369-02011-0 and 369020110M for the Tohatsu/Nissan applications and 27-16327 for the Mercury/Mariner application as gasket references. Confirm the correct gasket for your specific engine separately.
Will adjustment be required after installation?
Adjustment requirements depend on the engine and the condition of the installation. After installation, inspect for fuel leaks and follow the engine manufacturer's service manual for idle and mixture settings. Do not change adjustment settings without confirming the correct procedure for your engine.
What symptoms can indicate a carburetor problem?
Possible symptoms include hard starting, unstable idle, stalling, hesitation, poor acceleration, excessive fuel consumption, or fuel leakage. These symptoms can also result from ignition, fuel-supply, or engine-compression problems, so diagnose the complete system before replacing parts.
What maintenance is recommended?
Use clean, suitable fuel and follow the engine manufacturer's storage and maintenance procedures. If the outboard will be stored, protect the fuel system as directed in the service manual. Inspect fuel lines, connections, and the carburetor for leaks or contamination before operation.
Safety and Important Information
- Verify the complete engine model and the original part number before ordering.
- Do not rely on horsepower alone; model, stroke, and application must also match.
- Fuel-system work should be performed in a well-ventilated area away from flames, sparks, and other ignition sources.
- Inspect all fuel connections for leaks before operating the outboard.
- Professional installation is recommended when the correct linkage, gasket, or adjustment procedure is uncertain.
About Sea Sierra
- Marine Parts Selection — Replacement components for a range of outboard applications.
- Application-Focused Listings — Use the listed model and part-number references to compare your existing component before purchase.
- Practical Support — Consult the applicable engine service information for installation, adjustment, and maintenance procedures.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
