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3DP-03100-2 Carburetor Fits Tohatsu / Nissan MFS9.8B, MFS9.8A3 (9.8 HP)

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Product Overview

XR MARINE · CARBURETORS & REPAIR KITS

3DP-03100-2 Carburetor Fits Tohatsu / Nissan MFS9.8B, MFS9.8A3 (9.8 HP)

This XR Marine product is a replacement carburetor for the listed 4-stroke outboard applications, including Tohatsu / Nissan MFS9.8B, MFS9.8A3 and MFS9.8A2 models, as well as the listed Mercury and Mariner 9.8 HP and 9.9 HP 4-stroke applications. It is a complete carburetor unit for carburetor replacement rather than a rebuild or seal kit. Because multiple carburetor versions exist within these horsepower classes, always verify the full engine model suffix and complete carburetor reference number 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
Kit Status No (Carburetor unit, not a carburetor repair kit)
Intended Engine Cycle / Application Stroke 4-Stroke
Primary OEM Reference Numbers (Tohatsu / Nissan) 3DP-03100-2, 3V1-03100-2, 3V2-03100-3, 3FS-03100-0, 3DP031002M, 3V1031002M, 3FS031000, 3FS031000M, 3V2-03100-2, 3V2031000, 3V2031000M, 3V2031002, 3V2031002M, 3V2031003, 3V2031003M
Primary OEM Reference Numbers (Mercury / Mariner) 8M0176126, 8M0167272, 8M0173875, 895110A03, 895110T15, 8M0104462, 895110A13, 895110T01, 895110T11, 8M0104464, 895110A18, 3303-895110T01, 3303-895110T11
Listed Engine Models Tohatsu / Nissan MFS9.8B, MFS9.8A3, MFS9.8A2 (9.8 HP 4-Stroke); MFS8 (4-Stroke, version confirmation required); Mercury / Mariner 9.8 HP & 9.9 HP 4-Stroke (specific model and part number confirmation required)

Fitment

The 3DP-03100-2 Carburetor from XR Marine fits Tohatsu / Nissan MFS9.8B, MFS9.8A3 and MFS9.8A2 (9.8 HP) 4-stroke outboards, and applies to Tohatsu / Nissan MFS8 and Mercury / Mariner 9.8 HP and 9.9 HP 4-stroke outboards subject to exact engine model and carburetor version confirmation in the applications listed below.

Compare the full engine model designation on your identification plate against each individual entry below, and match the complete OEM carburetor reference number including suffixes such as A2, A3, B or M and prefixes such as 3303-. Horsepower alone cannot confirm compatibility.

  • Brand: Tohatsu / Nissan (Nissan / tohatsu marine outboard) | Model: MFS9.8B | Power: 9.8 HP | Year: 2024 | Stroke: 4-Stroke
    ✓ Fits
  • Brand: Tohatsu / Nissan (Nissan / tohatsu marine outboard) | Model: MFS9.8A3 | Power: 9.8 HP | Year: 2024 | Stroke: 4-Stroke
    ✓ Fits
  • Brand: Tohatsu / Nissan (Nissan / tohatsu marine outboard) | Model: MFS9.8A2 | Power: 9.8 HP | Year: 2024 | Stroke: 4-Stroke
    ✓ Fits
  • Brand: Tohatsu / Nissan (Nissan / tohatsu marine outboard) | Model: MFS9.8B | Power: 9.8 HP | Stroke: 4-Stroke
    ✓ Fits
  • Brand: Tohatsu / Nissan (Nissan / tohatsu marine outboard) | Model: MFS9.8A3 | Power: 9.8 HP | Stroke: 4-Stroke
    ✓ Fits
  • Brand: Tohatsu / Nissan (Nissan / tohatsu marine outboard) | Model: MFS9.8A2 | Power: 9.8 HP | Stroke: 4-Stroke
    ✓ Fits
  • Brand: Tohatsu / Nissan (Nissan / tohatsu marine outboard) | Model: MFS8 | Power: 4 HP | Year: 2024 | Stroke: 4-Stroke | Restriction: Horsepower assignment and exact carburetor version require confirmation before ordering.
    ! Check conditions
  • Brand: Tohatsu / Nissan (Nissan / tohatsu marine outboard) | Model: MFS8 | Stroke: 4-Stroke | Restriction: Confirm the exact carburetor version before ordering.
    ! Check conditions
  • Brand: Mercury (Mercury Mariner) | Power: 9.8 HP | Year: 2024 | Stroke: 4-Stroke | Restriction: Specific model not stated; check against the full engine model and required carburetor part number.
    ! Check conditions
  • Brand: Mercury (Mercury Mariner) | Power: 9.9 HP | Year: 2024 | Stroke: 4-Stroke | Restriction: Specific model not stated; check against the full engine model and required carburetor part number.
    ! Check conditions
  • Brand: Mariner (Mercury Mariner) | Power: 9.8 HP | Year: 2024 | Stroke: 4-Stroke | Restriction: Specific model not stated; check against the full engine model and required carburetor part number.
    ! Check conditions
  • Brand: Mariner (Mercury Mariner) | Power: 9.9 HP | Year: 2024 | Stroke: 4-Stroke | Restriction: Specific model not stated; check against the full engine model and required carburetor part number.
    ! Check conditions
  • Brand: Mercury (Mercury Mariner) | Power: 9.8 HP | Stroke: 4-Stroke | Restriction: Check against the full engine model and required carburetor part number; horsepower alone is not sufficient.
    ! Check conditions
  • Brand: Mercury (Mercury Mariner) | Power: 9.9 HP | Stroke: 4-Stroke | Restriction: Check against the full engine model and required carburetor part number; horsepower alone is not sufficient.
    ! Check conditions
  • Brand: Mariner (Mercury Mariner) | Power: 9.8 HP | Stroke: 4-Stroke | Restriction: Check against the full engine model and required carburetor part number; horsepower alone is not sufficient.
    ! Check conditions
  • Brand: Mariner (Mercury Mariner) | Power: 9.9 HP | Stroke: 4-Stroke | Restriction: Check against the full engine model and required carburetor part number; horsepower alone is not sufficient.
    ! 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.

Do not treat 3V2-03100-2 and 3V2-03100-3, or numbers with and without an M suffix, as automatically interchangeable. Preserve the 3303- prefix when checking Mercury references.

Brand / Source Reference Numbers
Nissan / Tohatsu Marine Outboard (Carburetor References) 3DP-03100-2, 3V1-03100-2, 3V2-03100-3, 3FS-03100-0, 3DP031002M, 3V1031002M, 3FS031000, 3FS031000M, 3V2-03100-2, 3V2031000, 3V2031000M, 3V2031002, 3V2031002M, 3V2031003, 3V2031003M
Mercury Mariner (Primary Carburetor References) 8M0176126, 8M0167272, 8M0173875, 895110A03, 895110T15, 8M0104462, 895110A13, 895110T01, 895110T11, 8M0104464, 895110A18, 3303-895110T01, 3303-895110T11
Mercury Mariner (Additional Reference Numbers) 8M0108371, 8M0108372, 89511, 895110A14, 895110A16, 895110A19, 895110T02, 895110T12, 895110A04, 895111A02, 895111A08, 895111T01, 895111T05, 895111A07, 895111A06, 895111A04, 895111A03
Sierra (Aftermarket Reference Numbers) 18-34500, 18-60915
Mallory (Aftermarket Reference Number) 9-34500
Nissan / Tohatsu Marine Outboard (Related Gasket References) 3V1-02011-0, 3V1020110M (Gasket reference; confirm inclusion before ordering)

What's Included

Check the supplied components before planning your repair.

  • Carburetor: Included.
  • Gasket (references 3V1-02011-0 / 3V1020110M): Listed as optional / to be added. Confirm whether the gasket and required quantity are supplied with your order before ordering.

Contact XR Marine to confirm the supplied contents before ordering.

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. Verify identification and prepare the engine safely: Confirm the engine model designation on the identification plate, compare the complete reference number and physical layout of the replacement carburetor against the existing unit, and check whether mounting gasket 3V1-02011-0 / 3V1020110M is on hand. Shut off the engine, allow it to cool completely, disconnect the ignition and fuel supply according to your service manual, and work in a well-ventilated area away from ignition sources.
  2. Document connections and remove the old carburetor: Note or photograph the routing and orientation of all fuel lines, breather hoses, choke components and throttle linkages before disassembly. Remove the existing carburetor following the factory service manual, inspect the intake mounting surfaces, and compare the flange pattern, linkage attachment points and ports side by side with the replacement carburetor.
  3. Install, adjust per manual and inspect for leaks: Mount the replacement carburetor with the appropriate gasket, reconnect the linkages and fuel lines in their recorded positions, and verify smooth, unobstructed throttle and choke movement. Prime the fuel system to check carefully for any fuel seepage before starting. Run the engine only with proper cooling water supply, perform any synchronization or idle adjustments specified by your service manual, and shut down immediately if any fuel leak, binding or abnormal operation 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 year entry and any serial-number or version restrictions.
  • 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.
  • Retain model and part suffixes such as A2, A3, B and M, as well as the 3303- prefix on Mercury references; do not treat 3V2-03100-2 and 3V2-03100-3 as automatically interchangeable.
  • For MFS8 outboards or Mercury / Mariner 9.8 HP and 9.9 HP 4-stroke outboards, verify the exact carburetor version and whether gasket 3V1-02011-0 / 3V1020110M is included with your order.

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 for the listed 4-stroke outboard applications. It is not a carburetor rebuild or seal kit.

Can I select this carburetor based only on having a 9.8 HP or 9.9 HP 4-stroke outboard?

No. Horsepower alone is not sufficient for selection. For Tohatsu / Nissan models such as MFS9.8B, MFS9.8A3 and MFS9.8A2, as well as Mercury and Mariner 9.8 HP and 9.9 HP 4-stroke outboards, you must match the full engine model designation and the complete carburetor reference number.

Are reference numbers like 3V2-03100-2 and 3V2-03100-3, or numbers with and without an M suffix, automatically interchangeable?

No. Do not treat 3V2-03100-2 and 3V2-03100-3, or part numbers with and without an M suffix, as automatically interchangeable. Always retain model and part suffixes (A2, A3, B, M) and the 3303- prefix on Mercury references when comparing your existing part.

What should I check if I have a Tohatsu or Nissan MFS8 outboard?

For an MFS8 application, both the horsepower assignment in the listing and the exact carburetor version require confirmation before ordering. Check your engine identification plate and existing carburetor part number, or contact XR Marine for verification.

Is mounting gasket 3V1-02011-0 / 3V1020110M included in the package?

Contact XR Marine to confirm the supplied contents and quantities before ordering.

What shipping and warranty coverage apply to this carburetor?

All orders include free shipping with no minimum order value. XR Marine provides a lifetime warranty covering product quality defects, with normal wear and tear excluded.

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