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Fuel Pump – Fits Honda BF40D & BF50D 4-Stroke Outboard Motors (Replaces 16700-ZZ5-003)
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Fuel Pump – Fits Honda BF40D & BF50D 4-Stroke Outboard Motors (Replaces 16700-ZZ5-003)
This fuel pump assembly is designed for Honda 40 HP and 50 HP 4-stroke outboard motors, specifically models BF40D and BF50D manufactured after 2000.
It serves as a direct replacement for Honda OEM part number 16700-ZZ5-003, ensuring proper fit and function for a reliable restoration of your engine's fuel system.
- Engineered for direct OEM replacement installation.
- Compatible with standard marine gasoline.
- Package includes the fuel pump, two hose clamps, and an o-ring for a complete installation.
Part Number Cross-Reference
Use this table to confirm equivalent part numbers.
| Brand | Part Number |
|---|---|
| Honda | 16700-ZZ5-003 |
Compatible Engine Models
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Honda | BF40D | 40 | 4-Stroke | 16700-ZZ5-003 | |
| Honda | BF40DK2 | 40 | 4-Stroke | 16700-ZZ5-003 | |
| Honda | BF40DK4 | 40 | 4-Stroke | 16700-ZZ5-003 | |
| Honda | BF50D | 50 | 4-Stroke | 16700-ZZ5-003 | |
| Honda | BF50DK2 | 50 | 4-Stroke | 16700-ZZ5-003 | |
| Honda | BF50DK4 | 50 | 4-Stroke | 16700-ZZ5-003 |
Technical Specifications
| Specification | Value |
|---|---|
| Product Type | Fuel Pump Assembly |
| Installation | Direct OEM Replacement |
| Fuel Type | Gasoline |
| Housing Color | Black |
| Weight | 263g (0.58 lb) |
Package Contents
- 1 x Fuel Pump Assembly (16700-ZZ5-003)
- 2 x Hose Clamp (90604-ZV4-000)
- 1 x O-ring (91306-921-000)
Explosion Diagram
Installation Guide
- Safety First: Disconnect the battery and work in a well-ventilated area away from sparks or open flames.
- Relieve Fuel Pressure: Follow your engine's service manual to safely relieve pressure from the fuel system.
- Disconnect Lines: Carefully disconnect the fuel lines and electrical connectors from the old pump. Have rags ready to catch any residual fuel.
- Remove Old Pump: Unbolt and remove the old fuel pump assembly from the engine.
- Install New Pump: Mount the new fuel pump assembly, ensuring the new O-ring is properly seated.
- Reconnect: Securely reattach the fuel lines using the new hose clamps and reconnect the electrical connectors.
- Pressurize & Check: Reconnect the battery. Prime the fuel system according to your engine's manual.
- Final Inspection: Carefully inspect all connections for any signs of fuel leaks before starting the engine.
Troubleshooting & FAQ
Q: How can I be sure this fuel pump will fit my Honda outboard?
A: This pump is designed for Honda BF40D and BF50D 4-stroke models. The best way to confirm fitment is to match your original part's OEM number to 16700-ZZ5-003. Please also consult the "Compatible Engine Models" table on this page.
Q: What are the symptoms of a failing fuel pump?
A: Common signs include the engine having trouble starting, stalling at low speeds, sputtering at high speeds, or a general loss of power. These symptoms indicate the engine may not be receiving a consistent fuel supply.
Q: Is this a complete kit? What else will I need?
A: This is a complete assembly that includes the fuel pump, two new hose clamps, and a new O-ring. No other components should be required for a standard installation.
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.
We can ship to virtually any address in the world with free shipping available for most regions.
For our typical US and Canadian customers , our shipping timeframes are as follows:
- Amazon FBA: orders will be delivered within 1-5 business days after placing the order (during certain special periods such as major promotions, Christmas, etc., the delivery time of Amazon FBA may be affected).
- US warehouse shipment: orders will be delivered within 5 days after placing the order.
- China warehouse shipment: orders will be delivered about 12 days after placing the order.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Founded in 2002, JLM Marine has established itself as a dedicated manufacturer of high-quality marine parts, based in China. Our commitment to excellence in manufacturing has earned us the trust of top marine brands globally.
As a direct supplier, we bypass intermediaries, which allows us to offer competitive prices without compromising on quality. This approach not only supports cost-efficiency but also ensures that our customers receive the best value directly from the source.
We are excited to expand our reach through retail channels, bringing our expertise and commitment to quality directly to boat owners and enthusiasts worldwide.
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