Carburetor Assembly – Fits Mercury/Mariner 2-Stroke 70-90HP (Replaces 3301-9012A14)
Carburetor Assembly – Fits Mercury/Mariner 2-Stroke 70-90HP (Replaces 3301-9012A14) 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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Carburetor Assembly – Fits Mercury/Mariner 2-Stroke 70-90HP (Replac...
Carburetor Assembly – Fits Mercury/Mariner 2-Stroke 70-90HP (Replaces 3301-9012A14) is backordered and will ship as soon as it is back in stock.
Product Details
This Carburetor Assembly – Fits Mercury/Mariner 2-Stroke 70-90HP (Replaces 3301-9012A14) is a direct-fit replacement for Mercury and Mariner 70HP, 75HP, 80HP, and 90HP 2-stroke outboard engines manufactured between 1987 and 1989. It is engineered to restore original fuel delivery performance and engine efficiency.
It serves as a direct interchange for Mercury OEM part numbers 3301-9012A14, 3301-9012A24, 3301-9012A5, 3301-9012A17, and 3323-9012A14.
- Installs directly in place of the factory carburetor.
- Designed for gasoline-fueled 2-stroke outboards.
- Engineered for 3-cylinder engine configurations.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Mercury | 3301-9012A14 |
| Mercury | 3301-9012A24 |
| Mercury | 3301-9012A5 |
| Mercury | 3301-9012A17 |
| Mercury | 3323-9012A14 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Mercury/Mariner | Outboard | 70 | 2-Stroke | 1987–1989 | 3301-9012A14 | |
| Mercury/Mariner | Outboard | 75 | 2-Stroke | 1987–1989 | 3301-9012A14 | |
| Mercury/Mariner | Outboard | 80 | 2-Stroke | 1987–1989 | 3301-9012A14 | |
| Mercury/Mariner | Outboard | 90 | 2-Stroke | 1987–1989 | 3301-9012A14 |
Technical Specs
- Product Type
- Carburetor Assembly
- Installation
- Direct replacement
- Fuel Type
- Gasoline (for 2-stroke engines)
- Connection
- Multiple fuel line connections
- Housing Material
- Metal alloy
- Housing Color
- Silver/metallic
- Fitting Type
- OEM-style fittings
- Other Technical Attributes
- Designed for 3-cylinder engines
- Warranty
- Varies by seller (typically 1 year)
What’s in the Box
- 1 x Carburetor Assembly (3301-9012A14)
Installation Notes
- Ensure the engine is cool and disconnect the battery's negative terminal.
- Turn off the fuel supply and place a container under the carburetor to catch any spillage.
- Carefully disconnect the fuel lines, throttle linkage, and choke linkage from the carburetor. Note their positions for reassembly.
- Remove the mounting nuts or bolts securing the old carburetor to the intake manifold.
- Remove the old carburetor and clean the manifold mounting surface. Ensure the old gasket is completely removed.
- Install the new carburetor using a new gasket. Tighten the mounting nuts evenly to the manufacturer's torque specifications.
- Reconnect the fuel lines, throttle linkage, and choke linkage.
- Turn the fuel supply back on and check carefully for any leaks.
- Reconnect the battery terminal. Start the engine and check for smooth idling and throttle response. Adjust idle settings if necessary.
Troubleshooting & FAQ
How do I confirm this carburetor fits my engine?
This part fits specific Mercury/Mariner 2-stroke, 3-cylinder outboards from 70–90HP made between 1987–1989. The most reliable method is to cross-reference your original carburetor's part number with the list in our Part Number Matrix.
What are the signs of a faulty carburetor?
Common symptoms include difficulty starting, poor or rough idling, engine stalling at low speeds, hesitation or bogging on acceleration, reduced power, and visible fuel leaks from the carburetor body.
Is a new gasket included with this part?
Package contents can vary. This listing is for the carburetor assembly itself. To ensure a leak-free seal, we strongly recommend purchasing a new mounting gasket separately.
Can this carburetor be used on a 4-stroke engine?
No. This carburetor is specifically designed for the unique fuel-to-oil mixture requirements of 2-stroke engines. Using it on a 4-stroke engine will result in improper performance and potential engine damage.
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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