Carburetor Assembly for Mercury 55–60 HP and Honda BF2/BF2.3 Outboards — Replaces 821854T4 and 16100-ZV1-A03
Carburetor Assembly for Mercury 55–60 HP and Honda BF2/BF2.3 Outboards — Replaces 821854T4 and 16100-ZV1-A03 is backordered and will ship as soon as it is back in stock.
Worry-free returns
Worry-free returns
Shop with confidence. If you’re not completely satisfied, eligible items may be returned within the return window, provided they are unused and in original packaging.
If the return is due to our error or a defective item, we’ll make it right.
Please contact us before returning any item.
Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
U.S. orders usually arrive within 6–15 days, depending on stock location and destination.
International delivery times may vary due to customs processing.
Tracking information will be provided once your order ships.
Carburetor Assembly for Mercury 55–60 HP and Honda BF2/BF2.3 Outboa...
Carburetor Assembly for Mercury 55–60 HP and Honda BF2/BF2.3 Outboards — Replaces 821854T4 and 16100-ZV1-A03 is backordered and will ship as soon as it is back in stock.
Product Details
This complete carburetor assembly is listed as a replacement for selected Mercury 55–60 HP 2-stroke outboards and Honda BF2/BF2.3 4-stroke outboards. It is intended to restore proper fuel metering and engine operation when the original carburetor is damaged, worn, corroded, or no longer serviceable.
For Mercury applications, this assembly is identified for the top carburetor position in the three-carburetor configuration. For Honda applications, it is identified for BF2 and BF2.3 outboard models. Confirm the exact engine model, year, configuration, and part number before ordering.
- Complete carburetor assembly for the listed applications.
- Designed as an aftermarket replacement for the applicable original carburetor.
- Die-cast zinc-alloy housing construction as described for this replacement type.
- Verify the mounting pattern, linkage arrangement, fuel connections, and original part number before installation.
Part Number Matrix
The following numbers are provided as identification and cross-reference information. They do not replace confirmation against the engine model and the carburetor being removed.
| Brand | Part Number | Reference |
|---|---|---|
| Mercury | 821854T4 | OEM reference |
| Honda | 16100-ZV1-A00 | OEM reference; listed as superseded |
| Honda | 16100-ZV1-A01 | OEM reference; listed as superseded |
| Honda | 16100-ZV1-A02 | OEM reference; listed as superseded |
| Honda | 16100-ZV1-A03 | OEM reference |
| Honda | 16100-ZV1-E02 | Additional OEM reference |
| JLM Marine | AM821854T4 | Aftermarket cross-reference |
Engine and Model Compatibility
Use the information below as an application guide. Exact fitment can vary by model designation, production year, carburetor position, linkage arrangement, and serial-number range. Match the number stamped or listed on the original carburetor whenever possible.
| Brand | Model or Application | Rated HP | Stroke | Years | Reference Number | Position or Notes |
|---|---|---|---|---|---|---|
| Mercury | 55 HP outboard | 55 | 2-Stroke | 1999–2006 | 821854T4 | Top carburetor in a three-carburetor configuration |
| Mercury | 60 HP outboard | 60 | 2-Stroke | 1999–2006 | 821854T4 | Top carburetor in a three-carburetor configuration |
| Honda | BF2 | 2.0 | 4-Stroke | Various years | 16100-ZV1-A00, 16100-ZV1-A01, 16100-ZV1-A02, 16100-ZV1-A03, 16100-ZV1-E02 | Confirm model details and original carburetor number |
| Honda | BF2.3 | 2.3 | 4-Stroke | Various years | 16100-ZV1-A00, 16100-ZV1-A01, 16100-ZV1-A02, 16100-ZV1-A03, 16100-ZV1-E02 | Confirm model details and original carburetor number |
Technical Specifications
- Product Type
- Carburetor assembly
- Application
- Selected Mercury and Honda outboard engines listed above
- Installation
- Replacement installation using the applicable original mounting and linkage arrangement
- Fuel Type
- Gasoline
- Connection
- Engine-specific fuel, throttle, choke, and mounting connections
- Housing Material
- Die-cast zinc alloy
- Housing Color
- Silver or metallic finish
- Fitting Type
- OEM-style configuration for the listed applications
- Position
- Top carburetor on applicable Mercury three-carburetor configurations
- Brand Status
- Aftermarket replacement; not an original manufacturer component
What's in the Box
- 1 × Carburetor assembly
Gaskets, seals, mounting hardware, or adjustment components are included only if shown or stated in the package supplied with the order. Compare the replacement assembly with the original part before installation.
Installation Notes
- Stop the engine, allow it to cool, disconnect the battery where applicable, and shut off the fuel supply.
- Remove the engine cover or cowling to access the carburetor.
- Photograph or label the fuel lines, throttle linkage, choke linkage, and any other connections before removal.
- Disconnect the fuel lines and control linkages, taking care to prevent fuel spills.
- Remove the fasteners securing the carburetor to the intake or mounting surface.
- Compare the replacement carburetor with the original, including the mounting points, ports, linkages, and carburetor position.
- Clean the mounting surface and install a suitable new gasket or seal where required.
- Install the replacement carburetor and tighten the fasteners to the engine manufacturer's specifications.
- Reconnect the fuel lines and control linkages exactly as documented during removal.
- Restore the fuel supply and inspect carefully for leaks before starting the engine.
- Start the engine in a safe, well-ventilated area with adequate cooling water and check idle, throttle response, and fuel or air leaks.
- Make only the adjustments permitted by the engine manufacturer's service procedure, then reinstall the engine cover.
Troubleshooting and FAQ
How do I confirm that this carburetor fits my engine?
Check the brand, model, horsepower, stroke, production year, carburetor position, and the number on your original carburetor. Also compare the mounting points, fuel ports, throttle linkage, and choke linkage. If any of these details differ, do not assume the part will fit.
Is this for the top, middle, or bottom position on a Mercury engine?
For the Mercury applications listed here, the assembly is identified for the top position in the three-carburetor configuration. Confirm the position and original part number before ordering.
What symptoms can indicate a failing carburetor?
Possible symptoms include hard starting, rough or unstable idle, stalling, hesitation, poor acceleration, excessive smoke, fuel leakage, or an engine that will not maintain the correct fuel mixture. These symptoms can also be caused by fuel, ignition, compression, or linkage problems, so diagnose the engine before replacing parts.
Will tuning be required after installation?
Adjustment may be required after installation because settings depend on the engine, fuel system, altitude, and operating conditions. Follow the engine manufacturer's service procedure. Do not alter sealed or restricted adjustments unless the service information permits it.
Is this an OEM carburetor?
No. This is an aftermarket replacement designed for the listed applications. The OEM numbers are supplied for identification and cross-reference only.
Does the assembly include a gasket or mounting hardware?
The package contains one carburetor assembly. Gaskets, seals, and hardware should not be assumed to be included unless they are specifically shown or stated for the supplied package.
Does a carburetor have a scheduled replacement interval?
No universal replacement interval applies. Replace the carburetor when cleaning or rebuilding cannot correct problems such as corrosion, a damaged body, blocked passages, worn linkage points, or persistent fuel leakage.
What warranty applies?
Warranty coverage and return eligibility are governed by the seller's current policy and the order terms. Retain the order information and contact support before installing a part if the application is uncertain.
Safety and Important Information
- Work in a well-ventilated area away from flames, sparks, and other ignition sources.
- Drain or contain fuel safely and dispose of fuel-soaked materials according to local requirements.
- Verify the engine model, year, horsepower, stroke, carburetor position, and original part number before purchase.
- Do not operate the engine if fuel or air leaks are present.
- Professional installation is recommended when the correct adjustment procedure or engine configuration is uncertain.
About Sea Sierra
- Marine Replacement Parts — We provide aftermarket components for selected marine applications.
- Application-Focused Information — Use model, year, engine specifications, and original part numbers together when confirming fitment.
- Customer Support — Contact support with your engine details and original-part information if you need help checking an application before installation.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
