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Fuel Pump Assembly – Fits Tohatsu/Nissan 25-70HP (Replaces 356-04000-0, 356-04000-1)

Sale price $28.90 Regular price $46.00
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Fuel Pump Assembly – Fits Tohatsu/Nissan 25-70HP (Replaces 356-04000-0, 356-04000-1) is backordered and will ship as soon as it is back in stock.


Worry-free returns

You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Delivery and Shipping

Free standard shipping on all orders under 1 KG

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

This is a direct-fit Fuel Pump Assembly – Fits Tohatsu/Nissan 25-70HP 2-Stroke Outboard Motors, engineered to restore original fuel delivery performance. It is designed for various Tohatsu and Nissan 2-Stroke outboard engines from 25HP to 70HP, covering multiple models manufactured from approximately 1996 to 2002 and beyond.

This assembly provides a reliable interchange for Tohatsu part numbers 356-04000-0, 356-04000-1, 356040000M, 356040001M and Nissan equivalents 356040000 or 356040001.

  • Engineered for direct OEM-replacement fit and function.
  • Constructed with a marine-grade aluminum alloy housing for durability in saltwater environments.
  • Includes essential gaskets for a complete, leak-free installation.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Brand Part Number
Tohatsu 356-04000-0
Tohatsu 356-04000-1
Nissan 356040000
Nissan 356040001
Tohatsu 356040000M
Tohatsu 356040001M

Engine & Model Compatibility

Confirm your engine model/year in the table below.

This fuel pump is known to fit the following Tohatsu and Nissan models. Always cross-reference your engine's specific part number for accurate fitment.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Nissan NS25C2 25 2-Stroke 2002 356-04000-0/1
Nissan NS30A3 30 2-Stroke 2002 356-04000-0/1
Nissan M30A3 30 2-Stroke 1996 356-04000-0/1
Tohatsu M60B 60 2-Stroke 2002 356-04000-0/1
Tohatsu M70B 70 2-Stroke 2002 356-04000-0/1
Nissan NS60B 60 2-Stroke 2002 356-04000-0/1
Nissan NS70B 70 2-Stroke 2002 356-04000-0/1
Tohatsu M90A 90 2-Stroke 2002 356-04000-0/1 Also fits some models

Technical Specs

Product Type
Fuel Pump Assembly
Installation
Direct OEM replacement
Fuel Type
Gasoline (petrol)
Connection
1/4" hose nipple
Housing Material
Marine-grade aluminum alloy
Housing Color
Silver/metallic
Package Dimensions
12 × 10 × 8.5 cm
Weight
345g (0.76 lb)
Fitting Type
Direct OEM fit
Application
For 2-stroke applications only
Warranty
Varies by retailer, typically 6 months

What’s in the Box

  • 1 × Fuel Pump Assembly (Replaces 356-04000-0/1, 356040000M/1M)
  • 1 × Hose Clamp (90467-08004-00, 9×1mm)
  • 2 × Gasket (650-24431-A0-00)

Installation Notes

  1. Ensure the engine is off and fully cooled.
  2. Relieve any pressure in the fuel system.
  3. Disconnect the battery to prevent accidental ignition.
  4. Carefully remove the old fuel pump assembly and any gasket residue.
  5. Install the new fuel pump assembly with the provided gaskets, ensuring all connections are secure.
  6. Reconnect the battery and prime the fuel system according to your engine's manual.
  7. Start the engine and carefully inspect for any fuel leaks around the pump and its connections.

Troubleshooting & FAQ

How do I know if this pump fits my specific engine model?

While this pump fits a wide range of Tohatsu/Nissan 25–70HP engines, it is critical to verify your model and year against the compatibility table. For absolute certainty, compare your original part's numbers to those in our Part Number Matrix.

What are the signs of a failing fuel pump?

Common signs include the engine sputtering at high speeds, difficulty starting, surging, inconsistent RPMs, or a complete loss of power. A visual inspection may also reveal cracks or fuel leaks.

Is this for 2-stroke or 4-stroke engines?

This fuel pump is designed exclusively for 2-stroke outboard applications. Do not use it on 4-stroke engines, as the internal design and pressure ratings differ.

Does this pump require gaskets?

Yes, and two new gaskets are included in the package. Always use new gaskets during installation to ensure a proper, leak-free seal between the pump and the engine block.

Can I install this myself?

Yes, installation is straightforward for those with mechanical experience. However, because you are working with the fuel system, professional installation is strongly recommended for safety and to ensure proper function.

What is the difference between OEM and this aftermarket part?

This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials and functional performance. Our parts are manufactured in an ISO 9002 facility and are batch-inspected for consistency.

How fast do you ship and what is the cost?

We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free to most locations; expedited options with associated costs will appear at checkout if available for your region.

What is the warranty and return policy?

This part is covered by a 1-year warranty against manufacturing defects under normal use. If you encounter any issues, please contact our support team with your order details. Returns are accepted within our standard window, provided the part is unused and in its original condition. See our policy page or reach out for instructions.

Safety & Important Info

  • Verify images and specifications against your original part. If anything differs—even if your model appears compatible—do not purchase.
  • This is an aftermarket replacement part, not an original equipment manufacturer (OEM) component.
  • Professional installation is recommended for safety and performance.

About Sea Sierra

  • Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
  • Fast Global Fulfillment — Free standard delivery to most regions, typically arriving in 5–15 days.
  • Manufacturer-Direct Value — Fair pricing on reliable components without compromising on materials or quality control.

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