Carburetor Rebuild Kit – Fits Mercury Force 90-95 HP (Replaces 809735A1)

$26.50 $42.00

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Carburetor Rebuild Kit – Fits Mercury Force 90-95 HP (Replaces 809735A1) is backordered and will ship as soon as it is back in stock.

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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).

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Delivery and Shipping

Free standard shipping on all orders under 1 KG

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

Product Details

This Carburetor Rebuild Kit contains the necessary components to restore performance to carburetors on Mercury Force 90HP (1991–1999) and 95HP (1996–1997) outboards. It is also compatible with Mercury Sport Jet 90HP (1993–1995) and 95XR (1996–1997) models, ensuring a precise fit for a complete service.

This kit serves as a direct replacement for Mercury OEM part 809735A1 and Sierra aftermarket part FK10357.

Engineered for direct OEM-level replacement and installation.
Resistant to modern gasoline formulations.
Includes all essential gaskets and diaphragms for a full carburetor rebuild.

Part Number Matrix

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

Brand	Part Number
Mercury	809735A1
Sierra	FK10357

Engine & Model Compatibility

Confirm your engine model/year in the table below.

For Force models, this kit fits 75 HP outboards from 1999 and 90 HP models from 1991 to 1999.

For Mercury models, this kit is designed for Sport Jet 90 (non-oil injection) from 1993–1995 and Sport Jet 95XR from 1996–1997.

Brand	Model	Rated HP	Stroke	Years	OEM Part No.	Notes
Force	Outboard	75	2-Stroke	1999	809735A1
Force	Outboard	90	2-Stroke	1991–1999	809735A1
Mercury	Sport Jet	90	2-Stroke	1993–1995	809735A1	Non-Oil Injection
Mercury	Sport Jet 95XR	95	2-Stroke	1996–1997	809735A1

Technical Specs

Product Type: Carburetor Repair/Rebuild Kit
Installation: OEM Direct Replacement
Fuel Type: Gasoline
Housing Material: Various (gaskets, diaphragm materials)
Weight: 9g (0.02 lb)
Warranty: Varies by manufacturer (1-3 years typical)
Other Technical Attributes: Contains all necessary gaskets and diaphragm for rebuild

What’s in the Box

1 x Carburetor Rebuild Kit (809735A1) containing:
1 x Diaphragm (F438747)
1 x Gasket (F438617/27-820490)
1 x Gasket (F438760/27-823606)
1 x Gasket (F84792)

Installation Notes

Disconnect the battery and relieve fuel system pressure before beginning work.
Carefully remove the carburetor from the engine, noting all linkage and hose connections.
Disassemble the carburetor on a clean surface, organizing parts as you remove them.
Clean all metal components with a high-quality carburetor cleaner, ensuring all passages are clear
Carefully remove old gaskets and diaphragms, comparing them to the new parts in the kit to ensure a match.
Install the new diaphragms and gaskets from the kit, ensuring they are seated correctly.
Reassemble the carburetor, making sure all screws are tightened to the proper torque specifications.
Reinstall the carburetor onto the engine, reattaching all linkages and fuel lines. Adjust idle and mixture screws as per the manufacturer's service manual.

Troubleshooting & FAQ

How do I confirm this kit fits my specific engine?

Check the "Engine & Model Compatibility" table. Your engine's brand, model, HP, and year range must match one of the listed rows. Also, cross-reference the OEM part number (809735A1) with your service manual or existing part.

What are the signs of a failing carburetor that this kit can fix?

Common symptoms include difficulty starting, rough idling, stalling, poor acceleration, and fuel leaks. This kit replaces the typical wear items (gaskets, diaphragm) that cause these issues.

Is gasket sealant necessary when using this kit?

No. These gaskets are designed to be installed dry. Using sealant can interfere with the function of the carburetor and may cause fuel passage blockages.

How often should a carburetor be rebuilt?

Rebuild intervals depend on usage, fuel quality, and storage conditions. It is good practice to rebuild every 2-4 years as preventative maintenance or whenever performance issues arise.

My engine is a Mercury Sport Jet. Is this the correct kit?

Yes, if it is a 90 HP model from 1993–1995 (non-oil injection) or a 95XR model from 1996–1997. Please verify your exact model and year from the compatibility table.

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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