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Fuel Pump Diaphragm Kit – Fits Suzuki/Johnson/Evinrude 9.9-70 HP 4-Stroke (Replaces 15170-99E00)

Regular price $99.99
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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 Fuel Pump Diaphragm Kit is designed to restore fuel system performance for a wide range of Suzuki and Johnson/Evinrude 4-stroke outboard engines. It provides a reliable seal and function for models from 9.9 HP to 70 HP manufactured between 1996 and 2011.

It serves as a direct replacement for Suzuki part numbers 15170-99E00, 15170-99E1V, 15170-93E00, and 15170-99E0V; Johnson/Evinrude 5030699 and 5032321; and Sierra 18-3499.

  • Engineered for valve cover mounted fuel pumps.
  • Restores original pump efficiency and prevents fuel leaks.
  • Kit contains all necessary components for a complete diaphragm rebuild.

Part Number Matrix

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

Brand Part Number Superseded By
Suzuki 15170-99E00 15170-99E1V
Suzuki 15170-93E00
Suzuki 15170-99E0V
Johnson/Evinrude 5030699
Johnson/Evinrude 5032321
Sierra 18-3499

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Fits Suzuki DF9.9 through DF70 series outboards from 1996–2011.

Fits Johnson/Evinrude 9.9 HP through 70 HP 4-Stroke models from 1998–2007 built by Suzuki.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Suzuki DF9.9 9.9 4-Stroke 1996–2011 15170-99E00/15170-99E1V
Suzuki DF15 15 4-Stroke 1997–2011 15170-99E00/15170-99E1V
Suzuki DF25 25 4-Stroke 2000–2006 15170-99E00/15170-99E1V Non-V twin models
Suzuki DF30 30 4-Stroke 2000–2007 15170-99E00/15170-99E1V
Suzuki DF40 40 4-Stroke 1999–2010 15170-99E00/15170-99E1V
Suzuki DF50 50 4-Stroke 1999–2010 15170-99E00/15170-99E1V
Suzuki DF60 60 4-Stroke 1998–2009 15170-99E00/15170-99E1V
Suzuki DF70 70 4-Stroke 1998–2009 15170-99E00/15170-99E1V
Johnson/Evinrude 9.9 9.9 4-Stroke 2002–2004 5030699/5032321
Johnson/Evinrude 15 15 4-Stroke 2002–2004 5030699/5032321
Johnson/Evinrude 25 25 4-Stroke 2000–2001, 2004–2006 5030699/5032321
Johnson/Evinrude 30 30 4-Stroke 2000–2001, 2004–2007 5030699/5032321
Johnson/Evinrude 40 40 4-Stroke 1999–2006 5030699/5032321
Johnson/Evinrude 50 50 4-Stroke 1999–2006 5030699/5032321
Johnson/Evinrude 60 60 4-Stroke 2002–2006 5030699/5032321
Johnson/Evinrude 70 70 4-Stroke 1998–2006 5030699/5032321

Technical Specs

Product Type
Fuel Pump Diaphragm Kit
Installation
Valve cover mounted pump
Fuel Type
Gasoline
Product Dimensions
5.25" x 4.0" x 1.88"
Box Dimensions
5.25" x 4.0" x 1.88"
Weight
0.4 lbs (0.18 kg)

What’s in the Box

  • 1 x Fuel Pump Diaphragm Rebuild Kit

Installation Notes

  1. Disconnect the battery and relieve fuel system pressure to prevent hazards.
  2. Carefully note the orientation of fuel lines before disconnecting them from the pump.
  3. Unbolt the old fuel pump assembly from the valve cover.
  4. Disassemble the pump housing to access the old diaphragm, watching for small springs or seals.
  5. Remove the old diaphragm and clean the housing surfaces thoroughly.
  6. Install the new diaphragm and components from the kit, ensuring correct alignment.
  7. Reassemble the pump housing and torque screws to manufacturer specifications.
  8. Mount the reassembled pump back onto the valve cover, reconnect fuel lines, and check for leaks before starting the engine.

Troubleshooting & FAQ

How do I know if my fuel pump diaphragm is failing?

Common signs include poor engine performance, stalling, difficulty starting, visible fuel leaks on the pump housing, and fuel mixing with engine oil (check your dipstick for a gasoline smell or higher-than-normal oil level).

Will this fit my non-V-twin Suzuki DF25?

Yes, this kit is specifically for the non-V-twin DF25 models from 2000–2006. Always verify your OEM part number to be certain.

Is this a complete fuel pump or just the rebuild kit?

This is a diaphragm rebuild kit, not the entire fuel pump assembly. It includes the necessary components to service and repair your existing valve-cover-mounted fuel pump.

What is the recommended replacement interval for this part?

There is no fixed replacement interval. We recommend inspecting the fuel pump during regular service and replacing the diaphragm if you observe signs of wear, leaks, or fuel delivery issues.

OEM vs. Aftermarket?

This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.

Shipping speed & cost

We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.

Warranty & returns

Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.

Safety & Important Info

  • Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
  • This is an aftermarket replacement, not an 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 in 5–15 days.
  • Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.

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