Fuel Pump – Fits Suzuki DF9.9B DF15A DF20A (Replaces 15100-89L21, 15100-89L20)

Product Details

This aftermarket Fuel Pump – Fits Suzuki DF9.9B DF15A DF20A is engineered for Suzuki outboard engines rated 9.9, 15, and 20 HP. Compatible with DF9.9B, DF15A, and DF20A models from 2016 through 2020, this gasoline fuel pump delivers reliable fuel delivery for your marine engine.

Direct replacement for Suzuki part numbers 15100-89L21 and 15100-89L20.

• Designed for Suzuki 4-stroke outboard motors
• Gasoline fuel compatibility
• Includes one complete fuel pump assembly

Part Number Matrix

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

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Important: If your engine is a 2013, 2014, or 2015 model year, use pump 15100-89L00 instead.

Technical Specs

OEM Reference

15100-89L21, 15100-89L20

Fuel Type

Gasoline

Application

Outboard marine engines

Fitment

Suzuki DF9.9B, DF15A, DF20A (2016–2020)

What's in the Box

• 1 × Fuel Pump

Installation Notes

1. Disconnect the negative battery terminal and relieve fuel system pressure before beginning work.
2. Remove the engine cover and locate the existing fuel pump assembly.
3. Disconnect fuel lines carefully, noting orientation and placement. Have a rag ready to catch residual fuel.
4. Remove mounting bolts securing the old pump to the engine block.
5. Clean the mounting surface thoroughly to ensure a proper seal.
6. Position the new fuel pump on the mounting surface, aligning bolt holes.
7. Install and torque mounting bolts to manufacturer specifications in a cross pattern.
8. Reconnect fuel lines securely, ensuring no kinks or damage.
9. Reconnect the battery terminal and prime the fuel system per engine manual.
10. Start the engine and inspect for leaks at all connection points.
11. Run the engine at idle for several minutes to verify proper operation.
12. Reinstall the engine cover and perform a test run under normal operating conditions.

Troubleshooting & FAQ

How do I know if my fuel pump is failing?

Common signs include hard starting, engine sputtering at high RPM, loss of power under load, or the engine dying unexpectedly. You may also notice fuel odor or visible leaks around the pump assembly.

Will this pump work on 2013–2015 Suzuki engines?

No. For 2013, 2014, and 2015 model years, you need pump part number 15100-89L00. This pump is specifically designed for 2016–2020 models.

Can I install this myself or do I need a mechanic?

If you have mechanical experience and the proper tools, installation is straightforward. However, working with fuel systems requires care to avoid leaks and fire hazards. Professional installation is recommended if you're uncertain.

What's the difference between this and the OEM Suzuki pump?

This is an aftermarket replacement built to OEM-level specifications with comparable materials and design. It offers the same fitment and performance at a more accessible price point.

How often should I replace my outboard fuel pump?

Fuel pumps typically last several years under normal use. Replace immediately if you experience performance issues or leaks. Routine inspection during annual service is recommended.

Does this pump come with gaskets or seals?

The package includes one fuel pump assembly as shown. Verify the included components against your needs; additional gaskets or hardware may be required depending on your engine configuration.

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 against 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.