Diaphragm Kit – Fits Suzuki DF9.9 & DF15 HP 4-Stroke (Replaces 15170-94J00)
Diaphragm Kit – Fits Suzuki DF9.9 & DF15 HP 4-Stroke (Replaces 15170-94J00) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Product Details
This Diaphragm Kit – Fits Suzuki DF9.9 & DF15 HP 4-Stroke is a direct-fit replacement designed to restore the fuel pump on Suzuki DF9.9 & DF15 HP (2005–2016) and Johnson/Evinrude 9.9 & 15 HP (2005–2007) 4-stroke outboard engines.
It provides a reliable, cost-effective solution for replacing worn or damaged fuel pump diaphragms, serving as an aftermarket equivalent for Sierra 18-3498; Johnson/Evinrude 5036216 and 5037584; and Suzuki 15170-94J00, 15170-94J01, 15170-94J02, and 15170-94J0V.
- Engineered for direct, hassle-free installation.
- Compatible with standard gasoline fuel systems.
- Restores fuel pump performance and prevents leaks.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Superseded By | Notes |
|---|---|---|---|
| Sierra | 18-3498 | ||
| Johnson/Evinrude | 5036216 | 5037584 | |
| Suzuki | 15170-94J00 | 15170-94J01, 15170-94J02, 15170-94J0V |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Suzuki outboards, this kit fits select DF9.9 and DF15 4-stroke models manufactured from 2005 onward.
For Johnson/Evinrude outboards, this kit covers specific 9.9 and 15 HP 4-stroke models from 2005 to 2007 that use the specified OEM part numbers.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Suzuki | DF9.9 | 9.9 | 4-Stroke | 2005–2016 | 15170-94J00 | |
| Suzuki | DF15 | 15 | 4-Stroke | 2005–2012 | 15170-94J00 | |
| Johnson/Evinrude | 9.9 | 9.9 | 4-Stroke | 2005–2007 | 5036216 | Superseded by 5037584 |
| Johnson/Evinrude | 15 | 15 | 4-Stroke | 2005–2007 | 5036216 | Superseded by 5037584 |
Technical Specs
- Product Type
- Fuel Pump Diaphragm Kit
- Installation
- Direct replacement
- Fuel Type
- Gasoline
- Dimensions
- 5.13" H x 4.0" W x 2.0" L
Installation Notes
- Disconnect the negative battery cable for safety.
- Place a rag under the fuel pump to catch any minor fuel spillage.
- Carefully disconnect the inlet and outlet fuel lines from the pump.
- Remove the mounting bolts securing the pump to the engine block.
- Disassemble the fuel pump housing, paying close attention to the order and orientation of the diaphragm, springs, and seals.
- Clean the housing surfaces and install the new diaphragm and components from the kit.
- Reassemble the pump, ensuring all screws are tightened evenly to the manufacturer's torque specifications.
- Mount the reassembled pump back onto the engine and reconnect the fuel lines.
- Reconnect the battery, prime the fuel system, and carefully check for any leaks before starting the engine.
Troubleshooting & FAQ
How do I know if my fuel pump diaphragm has failed?
Common signs include poor engine performance, stalling, hesitation under acceleration, noticeable fuel leaks from the pump body, or difficulty starting the engine.
Will this kit fit models outside the listed year ranges?
We only guarantee fitment for the specific models and years listed: Suzuki DF9.9/DF15 (2005–2016) and Johnson/Evinrude 9.9/15 HP (2005–2007). Using it on other models is not recommended as internal pump designs may differ.
What is the recommended replacement interval for a diaphragm?
There is no strict service interval. It should be inspected during routine service and replaced proactively every few seasons or immediately if you notice signs of wear, cracking, or leakage to prevent fuel system failure.
Does this kit include all necessary seals and gaskets?
A diaphragm kit includes the core components for a standard rebuild. It is crucial to compare the kit's contents shown in the product images to your old parts before installation to ensure a complete match.
Can I complete this installation myself?
Yes, this is a common task for individuals with intermediate mechanical experience. However, given the fire risk associated with fuel systems, professional installation is always recommended if you are not fully confident in the procedure.
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.
Payment & Security
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