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Fuel Injector – Fits Honda Outboard 115–250 HP (Replaces 16450-ZY6-003)

Regular price $22.50

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Orders are typically processed within 1–2 business days.


U.S. orders usually arrive within 6–15 days, depending on stock location and destination.


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If you have any questions, feel free to email us at info@seasierra.com, and we’ll get back to you within 20–36 hours.

Product Details

This replacement Fuel Injector – Fits Honda Outboard 115–250 HP (Replaces 16450-ZY6-003) is engineered for optimal performance in Honda 4-Stroke outboard engines from 115 to 250 HP, covering models from 2004 and newer, including the BF115, BF135, BF150, BF175, BF200, BF225, and BF250 series.

It serves as a direct cross-reference for Honda OEM part number 16450-ZY6-003, ensuring a precise fit and restoring original fuel system efficiency.

  • Installation: Mounts directly onto the fuel rail for a straightforward setup.
  • Fitment: Designed as a direct fit, complete with O-rings for a secure, leak-free seal.
  • Included Hardware: Comes with new filters, O-rings, and grommets for a complete installation.

Part Number Matrix

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

Brand Part Number
Honda 16450-ZY6-003

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Brand Model Rated HP Stroke Years OEM Part No.
Honda BF115 115 4-Stroke 2004+ 16450-ZY6-003
Honda BF135 135 4-Stroke 2004+ 16450-ZY6-003
Honda BF150 150 4-Stroke 2004+ 16450-ZY6-003
Honda BF175 175 4-Stroke 2004+ 16450-ZY6-003
Honda BF200 200 4-Stroke 2004+ 16450-ZY6-003
Honda BF225 225 4-Stroke 2004+ 16450-ZY6-003
Honda BF250 250 4-Stroke 2004+ 16450-ZY6-003

Technical Specs

Product Type
Fuel Injector
Installation
Fuel Rail Mounted
Fuel Type
Gasoline
Connection
Electrical Connector and Fuel Rail Interface
Housing Material
Metal and Composite Plastic
Housing Color
Silver/Metallic
Dimensions
126 cm³
Fitting Type
Direct Fit with O-rings
Warranty
1 Year (Aftermarket); Varies by Vendor

What’s in the Box

  • 1 x Fuel Injector Assembly (16450-ZY6-003)

Installation Notes

  1. Disconnect the battery and relieve the fuel system pressure to prevent fuel spray.
  2. Carefully disconnect the electrical connector from the fuel injector.
  3. Remove any retaining clips or bolts holding the fuel rail and injector in place.
  4. Gently twist and pull the old injector out of the fuel rail and intake manifold.
  5. Lightly lubricate the new O-rings with clean engine oil before installing the new injector.
  6. Press the new injector firmly into the manifold and fuel rail, ensuring it is properly seated.
  7. Re-secure the fuel rail, clips, and bolts.
  8. Reconnect the electrical connector and the battery.
  9. Prime the fuel system by turning the key to the "On" position a few times, then start the engine and check for any leaks.

Troubleshooting & FAQ

How do I know if this fuel injector fits my Honda outboard?

This injector is designed for Honda 4-stroke models from 115 HP to 250 HP manufactured in 2004 or later. Always check the OEM part number (16450-ZY6-003) against your service manual or existing part to ensure a perfect match. Refer to our compatibility table for a detailed list of models.

What are the signs of a failing fuel injector?

Common symptoms include rough idling, engine misfires, poor acceleration, increased fuel consumption, or difficulty starting. A clogged or faulty injector disrupts the air-fuel mixture, leading to performance issues.

Is this a direct replacement for the Honda 16450-ZY6-003?

Yes, this is a direct aftermarket replacement for the Honda OEM part number 16450-ZY6-003. It is engineered to meet or exceed original factory specifications for fit and function.

Does this injector come with new O-rings and seals?

Yes, the package includes all necessary components for a standard installation, including new filters, O-rings, and grommets to ensure a leak-free seal.

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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