Carburetor Repair Kit – Fits Rochester 2BBL (Replaces Mercury 1397-5831)
Carburetor Repair Kit – Fits Rochester 2BBL (Replaces Mercury 1397-5831) 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 is designed to restore the performance of Rochester 2-barrel carburetors. It is specifically intended for use on various Mercury MerCruiser engines and OMC engines with Ford block applications manufactured between 1970 and 1977.
This kit serves as a direct replacement for multiple OEM and aftermarket part numbers, including Mercury Quicksilver 1397-5831, Sierra 18-7075, and OMC 508452.
- Engineered for direct-fit installation.
- Includes essential components for rebuilding Rochester 2BBL carburetors.
- Compatible with gasoline fuel systems.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Mercury Quicksilver | 1397-5831 |
| Sierra Marine | 18-7075 |
| OBR Red Rhino | MR-F06 |
| Mallory Marine | 9-37605 |
| GLM | 76107 |
| OMC | 0508452 |
| OMC | 508452 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This kit is compatible with specific Mercury MerCruiser engines using Ford 302 and 351 V-8 blocks.
It also fits OMC engines from the 1970–1977 period that use a Ford block with a Rochester carburetor.
| Brand | Model | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Mercury | 233 FORD 351 V-8 | 4-Stroke | 1975–1977 | 1397-5831 | Serial #4173000 THRU 4902304 |
| Mercury | 233 MIE FORD 351 V-8 | 4-Stroke | 1975–1976 | 1397-5831 | Serial #4173000 THRU 4775784 |
| Mercury | 888 (2 BBL.) FORD 302 V-8 | 4-Stroke | 1971–1977 | 1397-5831 | Serial #3108723 AND UP |
| OMC | FORD + ROCHESTER | 4-Stroke | 1970–1977 | 508452 |
Technical Specs
- Product Type
- Carburetor Repair Kit
- Installation
- Direct replacement
- Fuel Type
- Gasoline
- Fitting Type
- Rochester 2-barrel carburetor
- Other Technical Attributes
- For Rochester 2BBL carburetors
- Weight
- 0.18 kg (0.4 lb)
- Dimensions
- 1.63" L x 7.0" W x 6.38" H
What’s in the Box
- 1 x Carburetor Repair Kit (replaces 1397-5831)
Installation Notes
- Disconnect the battery and fuel lines, ensuring proper safety precautions for handling gasoline.
- Carefully remove the carburetor from the engine's intake manifold.
- Disassemble the carburetor in a clean, organized workspace. Take pictures to aid reassembly.
- Thoroughly clean all metal components with a quality carburetor cleaner, removing all dirt, varnish, and carbon deposits.
- Carefully inspect all parts and replace worn gaskets, seals, and other components using the new parts from the kit.
- Reassemble the carburetor, referring to your pictures or a service manual.
- Reinstall the carburetor onto the engine, reconnect fuel lines, and attach all linkages.
- Reconnect the battery, start the engine, and check for leaks. Adjust idle and mixture settings as needed.
Troubleshooting & FAQ
How do I know if this kit fits my specific engine?
This kit is designed for Rochester 2-barrel carburetors on specific Mercury and OMC Ford-block engines from the 1970s. Please review the compatibility table on this page and match your engine model, year, and serial number range. Verifying the OEM part number (1397-5831 or 508452) is the most reliable method.
What are common symptoms that this repair kit can fix?
This kit can resolve issues like rough idling, engine stalling, hesitation on acceleration, fuel leaks from the carburetor body, and flooding. These problems are often caused by degraded gaskets, clogged jets, or incorrect float levels, which this kit addresses.
What are the signs of a failing carburetor?
Signs include poor starting, rough idle, black smoke from the exhaust (running rich), engine hesitation or stalling, and reduced fuel economy. Leaks or the smell of gasoline around the carburetor are also clear indicators that service is needed.
How often should a carburetor be rebuilt?
There is no fixed interval. Rebuild the carburetor when performance issues arise. Factors like fuel quality, ethanol content, and periods of storage can accelerate the degradation of gaskets and seals, necessitating a rebuild.
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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