3B2-03200-1 Carburetor Fits Tohatsu, Nissan, Mercury & Mariner M6B, M8B

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Product Overview

XR MARINE · CARBURETORS & REPAIR KITS

3B2-03200-1 Carburetor Fits Tohatsu, Nissan, Mercury & Mariner M6B, M8B

This product is a replacement carburetor for selected Tohatsu, Nissan, Mercury and Mariner 6 HP, 8 HP and 9.8 HP 2-stroke outboard engines. It is supplied as a complete carburetor unit for replacing the existing carburetor rather than a carburetor repair kit.

To ensure proper selection, compare your engine model designation and the complete OEM reference number—including exact suffixes such as A04, A3, A2, T04, T03, T02 or M—before ordering.

Free shipping on all orders. Lifetime warranty for product quality defects. Normal wear and tear excluded.

Product Specifications

Key product details for identification and comparison.

Brand XR Marine
Product Type Carburetor
Application Stroke 2-Stroke
Listed Application Power 6 HP, 8 HP, 9.8 HP
Listed Engine Models (Tohatsu / Nissan) M6B, M8B, M9.8, NS9.8
Primary OEM References (Tohatsu / Nissan) 3B2-03200-1, 3K9-03200-0, 3G0-03200-0, 3B2032001, 3K9032000, 3G0032000, 3B2032001M, 3K9032000M, 3G0032000M
Primary OEM References (Mercury / Mariner) 3303-803687A04, 3303-803687A3, 3303-803687A2, 3303-803687T04, 3303-803687T03, 3303-803687T02

Fitment

The 3B2-03200-1 Carburetor from XR Marine fits Tohatsu M6B (6 HP), M8B (8 HP) and M9.8 (9.8 HP), Nissan NS9.8 (9.8 HP), and selected Tohatsu, Nissan, Mercury and Mariner 6 HP, 8 HP and 9.8 HP 2-stroke outboard engines in the applications listed below.

Verify the exact model designation on your engine identification plate and compare the full OEM carburetor reference number, including all letters and suffixes. Horsepower alone cannot confirm fitment; for Tohatsu and Nissan models, confirm M6B, M8B, M9.8 or NS9.8 without assuming that added or omitted model suffixes represent the same configuration.

  • Brand: Nissan / Tohatsu Marine Outboard (Tohatsu) | Model: M6B | Power: 6 HP | Stroke: 2-Stroke
    ✓ Fits
  • Brand: Nissan / Tohatsu Marine Outboard (Tohatsu) | Model: M8B | Power: 8 HP | Stroke: 2-Stroke
    ✓ Fits
  • Brand: Nissan / Tohatsu Marine Outboard (Tohatsu) | Model: M9.8 | Power: 9.8 HP | Stroke: 2-Stroke
    ✓ Fits
  • Brand: Nissan / Tohatsu Marine Outboard (Nissan) | Model: NS9.8 | Power: 9.8 HP | Stroke: 2-Stroke
    ✓ Fits
  • Brand: Mercury Mariner (Mercury) | Power: 6 HP | Stroke: 2-Stroke | Note: Model and year not specified; confirm by complete carburetor reference number.
    ✓ Fits
  • Brand: Mercury Mariner (Mercury) | Power: 8 HP | Stroke: 2-Stroke | Note: Model and year not specified; confirm by complete carburetor reference number.
    ✓ Fits
  • Brand: Mercury Mariner (Mercury) | Power: 9.8 HP | Stroke: 2-Stroke | Note: Model and year not specified; confirm by complete carburetor reference number.
    ✓ Fits
  • Brand: Mercury Mariner (Mariner) | Power: 6 HP | Stroke: 2-Stroke | Note: Model and year not specified; confirm by complete carburetor reference number.
    ✓ Fits
  • Brand: Mercury Mariner (Mariner) | Power: 8 HP | Stroke: 2-Stroke | Note: Model and year not specified; confirm by complete carburetor reference number.
    ✓ Fits
  • Brand: Mercury Mariner (Mariner) | Power: 9.8 HP | Stroke: 2-Stroke | Note: Model and year not specified; confirm by complete carburetor reference number.
    ✓ Fits
  • Brand: Nissan / Tohatsu Marine Outboard (Tohatsu) | Power: 6 HP | Stroke: 2-Stroke | Note: Model not specified.
    ✓ Fits
  • Brand: Nissan / Tohatsu Marine Outboard (Tohatsu) | Power: 8 HP | Stroke: 2-Stroke | Note: Model not specified.
    ✓ Fits
  • Brand: Nissan / Tohatsu Marine Outboard (Tohatsu) | Power: 9.8 HP | Stroke: 2-Stroke | Note: Model not specified.
    ✓ Fits
  • Brand: Nissan / Tohatsu Marine Outboard (Nissan) | Power: 6 HP | Stroke: 2-Stroke | Note: Model not specified.
    ✓ Fits
  • Brand: Nissan / Tohatsu Marine Outboard (Nissan) | Power: 8 HP | Stroke: 2-Stroke | Note: Model not specified.
    ✓ Fits
  • Brand: Nissan / Tohatsu Marine Outboard (Nissan) | Power: 9.8 HP | Stroke: 2-Stroke | Note: Model not specified.
    ✓ Fits
  • Brand: Nissan / Tohatsu Marine Outboard (Tohatsu) | Power: 6 HP | Stroke: 2-Stroke | Condition: Model and year not specified. Source model list: M6B / M8B / M9.8 / NS9.8; exact model-to-power mapping must be confirmed.
    ! Check conditions
  • Brand: Nissan / Tohatsu Marine Outboard (Tohatsu) | Power: 8 HP | Stroke: 2-Stroke | Condition: Model and year not specified. Source model list: M6B / M8B / M9.8 / NS9.8; exact model-to-power mapping must be confirmed.
    ! Check conditions
  • Brand: Nissan / Tohatsu Marine Outboard (Tohatsu) | Power: 9.8 HP | Stroke: 2-Stroke | Condition: Model and year not specified. Source model list: M6B / M8B / M9.8 / NS9.8; exact model-to-power mapping must be confirmed.
    ! Check conditions
  • Brand: Nissan / Tohatsu Marine Outboard (Nissan) | Power: 6 HP | Stroke: 2-Stroke | Condition: Model and year not specified. Source model list: M6B / M8B / M9.8 / NS9.8; exact model-to-power mapping must be confirmed.
    ! Check conditions
  • Brand: Nissan / Tohatsu Marine Outboard (Nissan) | Power: 8 HP | Stroke: 2-Stroke | Condition: Model and year not specified. Source model list: M6B / M8B / M9.8 / NS9.8; exact model-to-power mapping must be confirmed.
    ! Check conditions
  • Brand: Nissan / Tohatsu Marine Outboard (Nissan) | Power: 9.8 HP | Stroke: 2-Stroke | Condition: Model and year not specified. Source model list: M6B / M8B / M9.8 / NS9.8; exact model-to-power mapping must be confirmed.
    ! Check conditions
  • Model: M6B | Power: 6 HP | Stroke: 2-Stroke | Condition: Exact brand assignment is not specified in this record.
    ! Check conditions
  • Model: M8B | Power: 8 HP | Stroke: 2-Stroke | Condition: Exact brand assignment is not specified in this record.
    ! Check conditions
  • Model: M9.8 | Power: 9.8 HP | Stroke: 2-Stroke | Condition: Exact brand assignment is not specified in this record.
    ! Check conditions
  • Model: NS9.8 | Power: 9.8 HP | Stroke: 2-Stroke | Condition: Exact brand assignment is not specified in this record.
    ! Check conditions

OEM & Part Number References

Use the complete reference number, including its suffix, when comparing parts. Reference numbers do not confirm that every version is interchangeable.

Nissan / Tohatsu Primary Carburetor References 3B2-03200-1, 3K9-03200-0, 3G0-03200-0, 3B2032001, 3K9032000, 3G0032000, 3B2032001M, 3K9032000M, 3G0032000M
Mercury / Mariner Primary Carburetor References 3303-803687A04, 3303-803687A3, 3303-803687A2, 3303-803687T04, 3303-803687T03, 3303-803687T02
Additional Nissan / Tohatsu Reference Numbers 369-03181-0, 369-03182-0, 369-03183-0
Additional Mercury / Mariner Reference Number 855540
Related Gasket References (Not Confirmed Included) Nissan / Tohatsu: 369-02011-0; Other / Unspecified Brand: 369020110M; Mercury / Mariner: 27-16327

What's Included

Check the supplied components before planning your repair.

  • Included: Carburetor.
  • Not Confirmed Included (Optional / Reference Only): Carburetor Gasket references 369-02011-0, 369020110M (Tohatsu / Nissan applications) and 27-16327 (Mercury / Mariner applications) are listed for reference only; gasket inclusion is not confirmed.

Installation Guide

General installation overview. Follow the service manual for your exact engine and carburetor configuration. Fuel-system work requires the appropriate skills and precautions.

  1. Preparation and Part Comparison: Ensure the outboard engine is shut off and cool, disconnect the fuel supply and ignition source as instructed in your service manual, and work in a well-ventilated area away from open flames. Compare the new carburetor directly against your existing unit—checking mounting flanges, throttle and choke linkage connections, fuel inlet orientation, and the complete reference number—and verify whether a separate mounting gasket is required before disassembly.
  2. Removal and Replacement Installation: Label or photograph all fuel lines, breather hoses, and linkage positions before removing the old carburetor. Inspect and clean the intake mounting surface, position the replacement carburetor and appropriate sealing gasket according to your service manual, and secure the mounting fasteners and linkages so the throttle and choke move smoothly through their full range without binding.
  3. Fuel Leak Check and Operational Verification: Reconnect the fuel line and prime the system while inspecting all fittings, gaskets, and the float bowl area for any signs of fuel leakage. Only with a proper cooling water supply connected to the outboard, start the engine and perform any necessary idle or mixture adjustments according to the factory service manual; shut the engine down immediately if any fuel leak, linkage sticking, or abnormal running occurs.

Before You Order

A careful fitment check helps you choose the right part the first time.

  • Match the full engine model designation on the identification plate.
  • Check the individual application entry and any model-to-power or version restrictions in the service catalog.
  • Compare the complete OEM reference number, including its suffix. Horsepower or appearance alone is not enough.
  • Confirm the package contents and the quantity needed for your repair.
  • Keep suffixes such as A04, A3, A2, T04, T03, T02 and M exactly as specified, and verify exact Tohatsu/Nissan model codes (M6B, M8B, M9.8 or NS9.8) without assuming an added or omitted suffix fits the same engine.
  • Check whether you need to source the mounting gasket separately (such as 369-02011-0, 369020110M or 27-16327), as gasket inclusion is not confirmed.

Need help checking fitment? Have your engine identification details, the existing part number and clear photos ready when you contact XR Marine.

Ask XR Marine About Fitment

Why XR Marine

Carburetors are our focus. Fitment comes first.

XR Marine specializes in marine carburetors, carburetor repair kits and the related parts needed for these repairs. We keep our focus on this product line so that product information stays centered on the details that matter: engine applications, complete part-number references and what is included.

Use our individual fitment entries and part references to compare your application, then contact XR Marine if you need help before ordering.

Shipping

Free shipping on all orders. No minimum order value.

For questions about delivery to your destination or delivery timing, contact XR Marine before placing your order.

Contact XR Marine About Shipping

Lifetime Warranty

XR Marine provides lifetime warranty coverage for product quality defects. Normal wear and tear is excluded.

  • Covered: product quality defects.
  • Not covered: normal wear and tear.

Contact XR Marine for warranty assistance. Having your order details and a description of the issue available can help us understand your request.

Contact XR Marine About Warranty

Frequently Asked Questions

Answers to common questions about this product and its application.

Is this product a complete carburetor or a carburetor repair kit?

This product is a replacement carburetor unit, not a carburetor repair kit. It is used when replacing the carburetor on a matching 2-stroke outboard application.

Which Tohatsu and Nissan outboard models are listed for this carburetor?

The specified model designations for Tohatsu and Nissan 2-stroke outboards are M6B (6 HP), M8B (8 HP), M9.8 (9.8 HP) and NS9.8 (9.8 HP). Confirm your exact model code on the engine identification plate and do not assume an added or omitted model suffix fits the same application.

Why do the part number suffixes like A04, T04 or M matter?

A similar base number alone is not sufficient to confirm compatibility. You must match the full reference number—including suffixes such as A04, A3, A2, T04, T03, T02 and M—against your original carburetor or official parts catalog.

Does this carburetor come with a mounting gasket?

Gasket inclusion is not confirmed. Gasket part numbers 369-02011-0 and 369020110M (for Tohatsu/Nissan applications) and 27-16327 (for Mercury/Mariner applications) are listed as optional references only. Contact XR Marine before ordering if you need to confirm package contents.

Can I select this carburetor based only on my engine being a 6 HP, 8 HP or 9.8 HP 2-stroke?

No. Horsepower and 2-stroke specification alone cannot confirm the right carburetor version. Always verify both the complete engine model designation and the full OEM carburetor reference number before ordering.

What shipping and warranty policies apply to this carburetor?

XR Marine offers free shipping on all orders with no minimum order value, along with a lifetime warranty covering product quality defects (normal wear and tear is excluded).

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