Carburetor Assembly – Fits Tohatsu & Nissan 4-Stroke 6HP (Replaces 3R4032000M, 3R4-03200-0)

Carburetor Assembly – Fits Tohatsu & Nissan 4-Stroke 6HP

This is a high-quality aftermarket carburetor assembly designed for Tohatsu and Nissan 4-stroke 6HP outboard engines. It fits the MFS6, NSF6, MFS5, and NSF5 series for specific model years, ensuring reliable fuel delivery and engine performance.

This unit serves as a direct replacement for multiple OEM part numbers, including 3R4032000M, 3R4-03200-0, 3AU032000M, and their superseded versions. It is engineered to match factory specifications for a straightforward installation.

• Installation Method: Direct replacement with factory-matching fittings.
• Included Parts: 1x complete carburetor assembly.
• Housing Material: Durable, corrosion-resistant metal (Zinc alloy).

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below.

Technical Specifications

Package Contents

• 1 x Carburetor Assembly (Replaces 3R4032000M / 3AU032000M / 3JE032000M and related numbers)

Installation Guide

1. Ensure the engine is off and completely cool before starting.
2. Shut off the fuel supply valve and safely disconnect the battery.
3. Carefully remove the engine cowling or cover to access the carburetor.
4. Before disconnecting anything, take a clear photo of the current setup for reference.
5. Disconnect the fuel lines, throttle linkage, and choke linkage from the carburetor. Note their positions.
6. Unscrew the mounting bolts and remove the old carburetor from the engine.
7. Clean the intake manifold mounting surface and check the condition of the gasket. Replace the gasket if it shows any signs of wear or damage.
8. Position the new carburetor onto the mounting studs and tighten the bolts securely.
9. Reconnect the fuel lines, throttle linkage, and choke linkage as they were on the original part.
10. Turn the fuel supply on and inspect carefully for any leaks.
11. Reconnect the battery, start the engine, and allow it to warm up. Adjust the idle speed if necessary per your owner's manual.
12. Once you confirm the engine is running smoothly, reinstall the cowling.

Troubleshooting & FAQ

Q: How do I confirm this carburetor fits my Tohatsu/Nissan engine?
A: Check your engine's model (e.g., MFS6B), serial number, and year against the "Compatible Engine Models" table above. It is also critical to verify that your existing part number matches one of the numbers listed in our "Part Number Cross-Reference" section to ensure a correct fit.

Q: What is the difference between this part and the original OEM carburetor?
A: This is an aftermarket replacement part, not an original Tohatsu/Nissan component. It is manufactured to meet or exceed the same performance specifications as the factory original, providing a reliable and cost-effective alternative.

Q: What are common signs my carburetor needs to be replaced?
A: Common symptoms include difficulty starting the engine, poor or rough idling, stalling at low speeds, the engine bogging down during acceleration, black smoke from the exhaust, or visible fuel leaks from the carburetor body.

Q: Does this carburetor fit both 5HP and 6HP models?
A: Yes. As detailed in the compatibility table, this carburetor is used on specific 4-stroke, 5HP models (MFS5B/NSF5B) and the 6HP series (MFS6/NSF6) manufactured between 2005 and 2010, in addition to other 6HP models from other years.

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.