Fuel Injector Assembly – Fits Honda Marine BF75/BF90 (Replaces 16450-ZY9-003)
Fuel Injector Assembly – Fits Honda Marine BF75/BF90 (Replaces 16450-ZY9-003) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
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Fuel Injector Assembly – Fits Honda Marine BF75/BF90 (Replaces 1645...
Fuel Injector Assembly – Fits Honda Marine BF75/BF90 (Replaces 16450-ZY9-003) is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket Fuel Injector Assembly is designed for Honda Marine 4-stroke outboard engines, specifically fitting 75 HP and 90 HP BF75/BF90 models from 2007 and newer with 1.5L SOHC VTEC engines. It ensures reliable fuel delivery and performance, serving as a direct-fit replacement for the original component.
It provides a direct interchange for Honda Marine OEM part number 16450-ZY9-003 (Keihin XI type fuel injector).
- Installs directly in place of the factory injector with no modifications required.
- Engineered for use in marine environments with gasoline fuel systems.
- Comes as a complete assembly for a straightforward installation.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Honda Marine | 16450-ZY9-003 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Honda Marine Outboards: This injector fits specific BF75, BF90, and BF100 models. Please verify your engine's model code and serial number range to ensure an exact match.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Honda Marine | BF75DK0 LHTA | 75 | 4-Stroke | 2007 and newer | 16450-ZY9-003 | Made in Japan (SN: BBAJ-1000001 - BBAJ-9999999) |
| Honda Marine | BF75DK0 LRTA | 75 | 4-Stroke | 2007 and newer | 16450-ZY9-003 | Made in Japan (SN: BBAJ-1000001 - BBAJ-9999999) |
| Honda Marine | BF75DK2 LRTA | 75 | 4-Stroke | 2007 and newer | 16450-ZY9-003 | Made in Japan (SN: BBAJ-1100001 - BBAJ-1199999) |
| Honda Marine | BF75DK3 LRTA | 75 | 4-Stroke | 2007 and newer | 16450-ZY9-003 | Made in Japan (SN: BBAJ-1200001 - BBAJ-1299999) |
| Honda Marine | BF75DK4 LRTA | 75 | 4-Stroke | 2007 and newer | 16450-ZY9-003 | Made in Japan (SN: BBAJ-1300001 - BBAJ-9999999) |
| Honda Marine | BF90DK0 LHTA | 90 | 4-Stroke | 2007 and newer | 16450-ZY9-003 | Made in Japan (SN: BBCJ-1000001 - BBCJ-9999999) |
| Honda Marine | BF90DK0 LRTA | 90 | 4-Stroke | 2007 and newer | 16450-ZY9-003 | Made in Japan (SN: BBCJ-1000001 - BBCJ-9999999) |
| Honda Marine | BF90DK0 XRTA | 90 | 4-Stroke | 2007 and newer | 16450-ZY9-003 | Made in Japan (SN: BBCJ-1000001 - BBCJ-9999999) |
| Honda Marine | BF90DK2 LRTA | 90 | 4-Stroke | 2007 and newer | 16450-ZY9-003 | Made in Japan (SN: BBCJ-1100001 - 1199999) |
| Honda Marine | BF90DK2 XRTA | 90 | 4-Stroke | 2007 and newer | 16450-ZY9-003 | Made in Japan (SN: BBCJ-1100001 - 1199999) |
| Honda Marine | BF90DK4 JRTA | 90 | 4-Stroke | 2007 and newer | 16450-ZY9-003 | Made in Japan (SN: BBCJ-1300001 - BBCJ-1399999) |
| Honda Marine | BF90DK4 LRTA | 90 | 4-Stroke | 2007 and newer | 16450-ZY9-003 | Made in Japan (SN: BBCJ-1300001 - BBCJ-1399999) |
| Honda Marine | BF90DK4 XRTA | 90 | 4-Stroke | 2007 and newer | 16450-ZY9-003 | Made in Japan (SN: BBCJ-1300001 - BBCJ-1399999) |
| Honda Marine | BF90DK5 JRTA | 90 | 4-Stroke | 2007 and newer | 16450-ZY9-003 | Made in Japan (SN: BBCJ-1400001 - BBCJ-9999999) |
| Honda Marine | BF90DK5 LRTA | 90 | 4-Stroke | 2007 and newer | 16450-ZY9-003 | Made in Japan (SN: BBCJ-1400001 - BBCJ-9999999) |
| Honda Marine | BF90DK5 XRTA | 90 | 4-Stroke | 2007 and newer | 16450-ZY9-003 | Made in Japan (SN: BBCJ-1400001 - BBCJ-9999999) |
| Honda Marine | BF100A LRTA | 100 | 4-Stroke | 16450-ZY9-003 | Made in Japan (SN: BBMJ-1000001 - BBMJ-9999999) | |
| Honda Marine | BF100A XRTA | 100 | 4-Stroke | 16450-ZY9-003 | Made in Japan (SN: BBMJ-1000001 - BBMJ-9999999) | |
| Honda Marine | BF100AK1 LRTA | 100 | 4-Stroke | 16450-ZY9-003 | Made in Japan (SN: BBMJ-1100001 - BBMJ-9999999) | |
| Honda Marine | BF100AK1 XRTA | 100 | 4-Stroke | 16450-ZY9-003 | Made in Japan (SN: BBMJ-1100001 - BBMJ-9999999) |
Technical Specs
- Product Type
- Fuel Injector Assembly
- Installation
- Direct OEM replacement
- Fuel Type
- Gasoline (marine)
- Connection
- Electrical connector and fuel rail mount
- Housing Color
- Black/Metallic
- Product Volume
- 126 cm³
- Package Dimensions
- 8 x 4.5 x 3.5 cm
- Weight
- 0.09 lbs (40.8 g)
- Fitting Type
- Fuel rail mount
- Warranty
- Lifetime warranty (when purchased rebuilt)
- Other Technical Attributes
- Keihin XI type fuel injector for 1.5L SOHC VTEC engines
What’s in the Box
- 1 x Injector Assembly, Fuel (16450-ZY9-003)
Installation Notes
- Disconnect the battery and relieve fuel system pressure according to your engine's service manual.
- Carefully disconnect the electrical connector from the fuel injector.
- Disconnect the fuel line and unbolt the fuel rail from the intake manifold.
- Gently remove the fuel rail with the injectors attached.
- Remove the clip holding the old injector and pull it from the fuel rail.
- Lubricate the new injector's o-rings with clean engine oil and press it firmly into the fuel rail. Secure with the clip.
- Reinstall the fuel rail, ensuring injectors are properly seated in the intake manifold.
- Reconnect the fuel line and electrical connector.
- Reconnect the battery, prime the fuel system, and turn the key to the 'ON' position (without starting) to check for leaks.
- If no leaks are present, start the engine and verify smooth operation.
Troubleshooting & FAQ
How do I confirm this injector fits my specific Honda outboard?
The best way is to match the OEM part number 16450-ZY9-003 from your old injector or service manual. Additionally, use our compatibility table to check your engine's full model name (e.g., BF90DK0 LRTA) and serial number range.
What are the common symptoms of a bad fuel injector?
Signs of a failing injector include rough idling, engine misfires, poor acceleration, increased fuel consumption, difficulty starting the engine, or fuel smell around the engine bay.
Does this injector include new o-rings and seals?
Yes, as a complete assembly, it includes all necessary o-rings and seals for installation. It is ready to be installed out of the box.
Can I replace just one injector, or should I replace all of them?
While you can replace a single failed injector, it is often recommended to replace them as a complete set. This ensures balanced fuel flow and consistent performance across all cylinders, especially on older engines.
Is any special tool required for installation?
No special tools are typically required beyond standard mechanic's tools (socket set, wrenches). However, a fuel pressure gauge is recommended to safely relieve and test system pressure. Always follow the safety procedures in your service manual.
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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