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Carburetor Assembly – Fits Tohatsu/Nissan 4-Stroke 8HP & 9.8HP (Replaces 3DP-03100-2)
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Carburetor Assembly – Fits Tohatsu/Nissan 4-Stroke 8HP & 9.8HP (Replaces 3DP-03100-2)
This carburetor assembly is designed for Tohatsu and Nissan 8HP & 9.8HP 4-stroke outboard engines from 2003 and newer, including the MFS8 and MFS9.8 series.
It serves as a direct replacement for Tohatsu OEM part numbers: 3DP-03100-2, 3V1-03100-2, 3V2-03100-3, and 3FS-03100-0.
- Engineered for a direct, hassle-free installation.
- Compatible with standard gasoline fuel types.
- Constructed from a durable metal alloy for longevity.
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| Tohatsu | 3DP-03100-2 |
| Tohatsu | 3V1-03100-2 |
| Tohatsu | 3V2-03100-3 |
| Tohatsu | 3FS-03100-0 |
Compatible Engine Models
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Tohatsu | MFS8 | 8 | 4-Stroke | 2003 and newer | 3DP-03100-2 | Base model |
| Tohatsu | NSF8 | 8 | 4-Stroke | 2003 and newer | 3DP-03100-2 | Nissan branded version |
| Tohatsu | MFS9.8 | 9.8 | 4-Stroke | 2003 and newer | 3DP-03100-2 | Multiple variants |
| Tohatsu | MFS9.8A | 9.8 | 4-Stroke | 2003 and newer | 3DP-03100-2 | |
| Tohatsu | MFS9.8A2 | 9.8 | 4-Stroke | 2003 and newer | 3DP-03100-2 | |
| Tohatsu | MFS9.8A3 | 9.8 | 4-Stroke | 2003 and newer | 3DP-03100-2 | |
| Tohatsu | MFS9.8B | 9.8 | 4-Stroke | 2003 and newer | 3DP-03100-2 |
Technical Specifications
| Specification | Value |
|---|---|
| Product Type | Carburetor Assembly |
| Installation | Direct replacement |
| Fuel Type | Gasoline |
| Housing Material | Metal (alloy) |
| Warranty | 1-year against manufacturing defects |
| Other Technical Attributes | Includes accelerator pump (on some models) |
Package Contents
- 1 x Carburetor Assembly (Replaces 3DP-03100-2, 3V1-03100-2, 3V2-03100-3, 3FS-03100-0)
Explosion Diagram
Installation Guide
- Ensure the engine is off, cool, and disconnected from the battery and fuel supply.
- Carefully note and photograph the positions of all hoses, linkages, and cables on the old carburetor.
- Disconnect the fuel lines, throttle cable, and choke linkages.
- Remove the mounting bolts securing the old carburetor and lift it away from the engine.
- Clean the mounting surface on the intake manifold, removing any old gasket residue.
- Position the new gasket and carburetor assembly onto the manifold.
- Securely fasten the mounting bolts in an even pattern.
- Reconnect all fuel lines, cables, and linkages to their original positions.
- Turn the fuel supply on and prime the system if necessary. Check thoroughly for leaks.
- Reconnect the battery.
- Start the engine and allow it to warm up.
- Adjust the idle speed if necessary and check for smooth throttle response.
Troubleshooting & FAQ
Q: How do I confirm this carburetor fits my engine?
A: This carburetor is designed for Tohatsu/Nissan 8HP and 9.8HP 4-stroke outboard engines from 2003 and newer, including the MFS8 and MFS9.8 series. To be certain, please compare your existing part to the images and cross-reference the OEM part number. This part replaces Tohatsu numbers 3DP-03100-2, 3V1-03100-2, 3V2-03100-3, and 3FS-03100-0. The compatible models table on this page provides a detailed list.
Q: What are the common signs that my carburetor needs to be replaced?
A: Signs of a faulty carburetor include difficulty starting, rough idling, stalling at low speeds, poor acceleration, engine hesitation, or an unusual amount of black smoke from the exhaust. Fuel leaks or flooding are also clear indicators that a replacement is needed.
Q: Is this a difficult part to install?
A: While this is a direct-fit replacement, carburetor installation requires careful handling of fuel lines and precise adjustments. For those with mechanical experience, it is a manageable task. However, to ensure safety and proper function, professional installation is always recommended.
Q: OEM vs. Aftermarket?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.
Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.
Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.
Important Notes
- Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
- This product is an aftermarket replacement part and is not an OEM component.
- Professional installation is recommended to ensure safety and optimal performance.
Why Choose JLM MARINE?
- Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
- Fast Global Shipping: Free delivery worldwide in 5–15 days.
- Direct from Manufacturer: Competitive pricing without compromising quality.
We can ship to virtually any address in the world with free shipping available for most regions.
For our typical US and Canadian customers , our shipping timeframes are as follows:
- Amazon FBA: orders will be delivered within 1-5 business days after placing the order (during certain special periods such as major promotions, Christmas, etc., the delivery time of Amazon FBA may be affected).
- US warehouse shipment: orders will be delivered within 5 days after placing the order.
- China warehouse shipment: orders will be delivered about 12 days after placing the order.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Founded in 2002, JLM Marine has established itself as a dedicated manufacturer of high-quality marine parts, based in China. Our commitment to excellence in manufacturing has earned us the trust of top marine brands globally.
As a direct supplier, we bypass intermediaries, which allows us to offer competitive prices without compromising on quality. This approach not only supports cost-efficiency but also ensures that our customers receive the best value directly from the source.
We are excited to expand our reach through retail channels, bringing our expertise and commitment to quality directly to boat owners and enthusiasts worldwide.
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