Carburetor Rebuild Kit – Fits Volvo Penta AQ120B, AQ140A, BB140A (Replaces 841294, 834647, 841293)
Carburetor Rebuild Kit – Fits Volvo Penta AQ120B, AQ140A, BB140A (Replaces 841294, 834647, 841293) 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 Rebuild Kit provides all necessary components to restore your Solex 44 PHN-3 carburetor. It is specifically designed for Volvo Penta B21 4-cylinder engines, including models AQ120B, AQ140A, and BB140A manufactured between 1975 and 1980.
This kit serves as a direct replacement for Volvo Penta part numbers 841294, 834647, and 841293, and is interchangeable with Sierra 18-7001 and HSR MARINE PARTS 901-024.
- Fits Solex 44 PHN-3 (1-barrel) carburetors.
- Features ethanol-ready components for compatibility with modern fuels.
- Backed by a one-year limited warranty from TMP Global for peace of mind.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Volvo Penta | 841294 |
| Volvo Penta | 834647 |
| Volvo Penta | 841293 |
| Sierra | 18-7001 |
| HSR MARINE PARTS | 901-024 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Volvo Penta | AQ120B (B21 Engine) | 4-Stroke | 1977–1980 | 841294 | Solex 44 PHN-3 carburetor |
| Volvo Penta | AQ140A (B21 Engine) | 4-Stroke | 1975–1977 | 841294 | Solex 44 PHN-3 carburetor |
| Volvo Penta | BB140A (B21 Engine) | 4-Stroke | 1975–1979 | 841294 | Solex 44 PHN-3 carburetor |
Technical Specs
- Product Type
- Carburetor Rebuild Kit
- Installation
- Fits Solex 44 PHN-3 (1-barrel) Carburetor
- Fuel Type
- Gasoline
- Dimensions
- 18.5" L x 16.5" W x 5.5" H
- Warranty
- One-year limited warranty (TMP Global)
- Other Technical Attributes
- Rebuild kit for side draft marine carburetor; Ethanol ready components
What’s in the Box
- Gaskets, diaphragms, and seals for one Solex 44 PHN-3 carburetor (841294)
Installation Notes
- Disconnect the vessel's battery and turn off the fuel supply.
- Carefully remove the flame arrestor and disconnect all linkages, hoses, and lines from the carburetor.
- Remove the mounting nuts/bolts and lift the carburetor off the intake manifold.
- Disassemble the carburetor on a clean workbench, organizing parts systematically. Pay close attention to the placement of small clips, springs, and check balls.
- Thoroughly clean all non-replaceable metal parts with a quality carburetor cleaner. Do not soak rubber or plastic components.
- Carefully scrape away old gasket material from all mating surfaces.
- Install the new gaskets, diaphragms, and seals from the kit, ensuring each component is seated correctly.
- Reassemble the carburetor, following the reverse order of disassembly.
- Reinstall the carburetor onto the manifold, reconnect all lines and linkages, and attach the flame arrestor.
- Reconnect the battery, turn the fuel on, and start the engine. Check for leaks and adjust idle/mixture settings according to the engine service manual.
Troubleshooting & FAQ
How do I confirm this kit fits my specific engine?
This kit is designed for Volvo Penta B21 4-cylinder engines (models AQ120B, AQ140A, BB140A) from approximately 1975–1980 that are equipped with a Solex 44 PHN-3 carburetor. The most reliable method is to verify the model number stamped on your carburetor body before purchasing.
What are common symptoms that my carburetor needs rebuilding?
Signs of a failing carburetor include difficulty starting, rough or erratic idling, stalling at low speeds, hesitation upon acceleration, black smoke from the exhaust, and noticeable fuel leaks or strong fuel odors.
Are these components resistant to modern ethanol-blended fuels?
Yes. This rebuild kit includes components specifically manufactured to be "ethanol ready," ensuring they will not degrade, swell, or fail when exposed to gasoline containing ethanol.
What is the main difference between an OEM and an aftermarket rebuild kit?
This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials for reliable fit and function. Manufactured in an ISO 9002 facility and batch-inspected for consistency, it offers a high-quality, cost-effective alternative.
How fast is shipping and what does it cost?
We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free; expedited options will appear at checkout if they are available for your location.
What is the warranty and return policy?
This product is covered by a 1-year warranty against manufacturing defects under normal use. If you encounter an issue, please contact our support team with your order details. Returns are accepted within our standard window for items that are unused and in their original condition. See our full 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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