Carburetor Repair Kit – Fits Mercury/Mercruiser MerCarb 2bbl (Replaces 3302-804844002)
Carburetor Repair Kit – Fits Mercury/Mercruiser MerCarb 2bbl (Replaces 3302-804844002) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
Worry-free returns
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Product Details
This Carburetor Repair Kit fits Mercury/Mercruiser MerCarb 2bbl carburetors and is designed for 3.0L, 4.3L, 5.0L, and 5.7L engines from 1986–2016. It is specifically for models with a side-fill accelerator pump cavity and a hooked (bent) accelerator pump rod.
It serves as a direct replacement for Mercury/Mercruiser part numbers 3302-804844002, 3302-804844001, and 3302-804844. It also interchanges with aftermarket parts from Sierra, Mallory Marine, Pro Marine, and GLM.
- Installs as a direct replacement for the original factory component.
- Engineered for gasoline-fueled marine engines.
- Kit contains gaskets, seals, and small hardware for a standard overhaul.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Mercury/Mercruiser | 3302-804844002 |
| Mercury/Mercruiser | 3302-804844001 |
| Mercury/Mercruiser | 3302-804844 |
| Sierra | 18-7098 |
| Sierra | 18-7098-1 |
| Mallory Marine | 9-37612 |
| Pro Marine | 50844 |
| GLM | 76086 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Mercruiser | 3.0L | 135-140 | 4-Stroke | 1986–2016 | 3302-804844002 | For MerCarb 2bbl carburetors |
| Mercruiser | 4.3L | 190-220 | 4-Stroke | 1986–2016 | 3302-804844002 | For MerCarb 2bbl carburetors |
| Mercruiser | 5.0L | 220-260 | 4-Stroke | 1986–2016 | 3302-804844002 | For MerCarb 2bbl carburetors |
| Mercruiser | 5.7L | 250-300 | 4-Stroke | 1986–2016 | 3302-804844002 | For MerCarb 2bbl carburetors |
Technical Specs
- Product Type
- Carburetor Repair Kit
- Installation
- Direct replacement
- Fuel Type
- Gasoline
- Dimensions
- Length: 25.0 in, Width: 17.5 in, Height: 4.5 in
- Weight
- 0.14 kg (0.3 lb)
- Other Technical Attributes
- For Mercruiser MerCarb carburetors with hooked (bent) accelerator pumps
What’s in the Box
- Gaskets, seals, and small parts for a complete MerCarb 2bbl carburetor rebuild.
Installation Notes
- Disconnect the boat's battery.
- Remove the flame arrestor from the carburetor.
- Carefully disconnect fuel lines, throttle linkage, and any vacuum hoses, noting their positions for reassembly.
- Remove the carburetor mounting nuts or bolts and lift the carburetor off the intake manifold.
- On a clean workbench, disassemble the carburetor, keeping track of all small parts.
- Clean all metal components thoroughly with a quality carburetor cleaner. Do not soak non-metal parts.
- Replace all old gaskets, seals, and needle valves with the new components from the kit.
- Reassemble the carburetor, ensuring check balls and other small components are correctly placed.
- Install the rebuilt carburetor onto the manifold using a new base gasket.
- Reconnect the fuel lines, throttle linkage, and hoses.
- Reinstall the flame arrestor and reconnect the battery.
- Start the engine, check for leaks, and adjust the idle speed and mixture screws as per your engine's service manual.
Troubleshooting & FAQ
How do I confirm this kit fits my carburetor?
This kit fits 2-barrel Mercury MerCarb carburetors used on 3.0L, 4.3L, 5.0L, and 5.7L Mercruiser engines (1986–2016). It is critical to confirm your carburetor has a side-fill accelerator pump cavity and a hooked (bent) accelerator pump rod, as other designs exist.
What are common signs that I need to rebuild my carburetor?
Symptoms indicating a rebuild is needed include hard starting (cold or hot), rough or erratic idling, stalling, hesitation upon acceleration, black smoke from exhaust (running rich), or visible fuel leaks from the carburetor body.
Does this kit include the float and jets?
This kit contains all standard soft parts (gaskets, seals, o-rings) and typically includes the needle and seat. Jets and floats are not always included in standard kits and may need to be purchased separately if required.
My carburetor has a straight accelerator pump rod. Will this kit work?
No. This repair kit is specifically for MerCarb models that use a hooked (bent) accelerator pump rod. Using it with a straight-pump carburetor will result in improper fitment and function.
Are instructions included with this kit?
Step-by-step instructions are not included. Carburetor rebuilding requires specialized knowledge. We strongly recommend using a factory service manual for your specific engine model to ensure proper assembly and adjustment.
How often should a marine carburetor be rebuilt?
There is no fixed interval, but it's good practice to consider a rebuild every 3-5 years for preventative maintenance, or immediately if performance issues arise. Ethanol-blended fuels can accelerate the deterioration of rubber components, requiring more frequent service.
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.
Payment & Security
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