Carburetor Assembly – Fits Mercury 55-60 HP & Honda BF2/BF2.3 Outboards (Replaces 821854T4, 16100-ZV1-A03)
Carburetor Assembly – Fits Mercury 55-60 HP & Honda BF2/BF2.3 Outboards (Replaces 821854T4, 16100-ZV1-A03) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
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Carburetor Assembly – Fits Mercury 55-60 HP & Honda BF2/BF2.3 O...
Carburetor Assembly – Fits Mercury 55-60 HP & Honda BF2/BF2.3 Outboards (Replaces 821854T4, 16100-ZV1-A03) is backordered and will ship as soon as it is back in stock.
Product Details
This is a complete Carburetor Assembly – Fits Mercury 55-60 HP & Honda BF2/BF2.3 Outboards (Replaces 821854T4, 16100-ZV1-A03), designed for reliable performance in both Mercury Marine 55-60 HP 2-Stroke outboards (1999–2006) and Honda Marine BF2/BF2.3 4-Stroke outboards. It serves as the top carburetor in Mercury’s 3-carburetor configuration and is engineered to restore fuel delivery and engine efficiency.
It functions as a direct replacement for Mercury part 821854T4, Honda parts 16100-ZV1-A00 through 16100-ZV1-E02, and JLM Marine aftermarket part AM821854T4.
- Installs as a direct OEM-fit replacement.
- Constructed from durable die-cast zinc alloy for corrosion resistance.
- Manufactured in an ISO 9002 certified facility to meet stringent quality standards.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Mercury | 821854T4 | OEM Part |
| Honda | 16100-ZV1-A00 | OEM Part (Superseded) |
| Honda | 16100-ZV1-A01 | OEM Part (Superseded) |
| Honda | 16100-ZV1-A02 | OEM Part (Superseded) |
| Honda | 16100-ZV1-A03 | OEM Part (Current) |
| Honda | 16100-ZV1-E02 | OEM Part (Alternative) |
| JLM Marine | AM821854T4 | Aftermarket Cross-Reference |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Mercury applications, this part serves as the top carburetor in a three-carburetor setup on 55 HP and 60 HP 2-stroke models manufactured between 1999 and 2006.
For Honda applications, this carburetor fits all years of the BF2 (2.0 HP) and BF2.3 (2.3 HP) 4-stroke outboard models.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Mercury | Outboard | 55 | 2-Stroke | 1999–2006 | 821854T4 | Top carburetor in 3-carb configuration |
| Mercury | Outboard | 60 | 2-Stroke | 1999–2006 | 821854T4 | Top carburetor in 3-carb configuration |
| Honda | BF2 | 2.0 | 4-Stroke | All years | 16100-ZV1-A00/A01/A02/A03/E02 | Multiple part number revisions |
| Honda | BF2.3 | 2.3 | 4-Stroke | All years | 16100-ZV1-A00/A01/A02/A03/E02 | Multiple part number revisions |
Technical Specs
- Product Type
- Carburetor Assembly
- Installation
- Direct OEM Replacement
- Fuel Type
- Gasoline
- Connection
- Multiple Ports - Engine Specific
- Housing Material
- Zinc Alloy (Die-Cast)
- Housing Color
- Silver/Metallic
- Fitting Type
- OEM Configuration
- Warranty
- Varies by manufacturer (JLM Marine offers warranty against defects)
- Other Technical Attributes
- Manufactured to OEM specifications in ISO9002 certified facility
What’s in the Box
- 1 x Carburetor Assembly (821854T4 or 16100-ZV1-A03)
Installation Notes
- Disconnect the negative battery terminal and shut off the fuel supply valve.
- Remove the engine cowling or cover to access the carburetor.
- Carefully note and disconnect all fuel lines, throttle linkages, and choke linkages attached to the old carburetor.
- Remove the nuts or bolts securing the carburetor to the intake manifold and remove it.
- Clean the manifold mounting surface and install a new gasket if required.
- Mount the new carburetor assembly, ensuring it is seated correctly.
- Tighten the mounting nuts or bolts to the manufacturer's recommended torque.
- Reconnect all fuel lines, throttle linkages, and choke controls.
- Turn the fuel supply on and check for any leaks.
- Reconnect the battery, start the engine, and allow it to warm up.
- Check for fuel or air leaks and adjust the idle speed screw if necessary.
- Replace the engine cowling.
Troubleshooting & FAQ
How do I know this carburetor fits my specific engine?
Verify that your engine's model, year, and horsepower are listed in the compatibility table. The most reliable method is to match the part number from your old carburetor to one of the OEM or aftermarket numbers listed in our Part Number Matrix.
Is this for the top, middle, or bottom position on a Mercury engine?
This carburetor assembly is specifically for the top position in the 3-carburetor configuration used on Mercury 55 HP and 60 HP 2-stroke outboards from 1999–2006.
What are the signs my old carburetor is failing?
Common symptoms include difficulty starting, rough or unstable idling, engine stalling, black smoke from the exhaust, bogging down on acceleration, and visible fuel leaks from the carburetor body.
Is any tuning required after installation?
This carburetor is pre-adjusted to factory settings, but minor adjustments to the idle speed or air/fuel mixture may be necessary depending on your specific engine, altitude, and climate to achieve optimal performance.
Is this aftermarket part different from the OEM version?
While designed to match OEM fit and function, this aftermarket carburetor is a cost-effective alternative. It is manufactured using comparable materials (die-cast zinc alloy) in an ISO 9002 facility to ensure quality and performance.
What is the recommended replacement interval for a carburetor?
Carburetors do not have a fixed replacement interval. They should be replaced when they show signs of failure that cannot be resolved through cleaning or rebuilding, such as internal corrosion, warped bodies, or stripped adjustment screws.
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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