Carburetor Service Valve Kit – Fits Johnson/Evinrude Outboard Engines (Replaces 175158, 437228)
Carburetor Service Valve Kit – Fits Johnson/Evinrude Outboard Engines (Replaces 175158, 437228) is backordered and will ship as soon as it is back in stock.
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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.).
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Carburetor Service Valve Kit – Fits Johnson/Evinrude Outboard Engin...
Product Details
This Carburetor Service Valve Kit provides a reliable, direct-fit solution for Johnson/Evinrude 2-stroke outboard engines equipped with a primer valve system. It is designed for broad compatibility across most models, with the specific exception of 1993 9.9HP and 15HP engines.
It serves as a direct interchange for Sierra part numbers 18-7044/18-7044-1 and Johnson/Evinrude OEM parts 175158, 437228, 341297, 341071, and 331365.
- Installation: Direct replacement for OEM components
- Functionality: Allows injection of engine tuner and fogging oil through the primer valve
- Compatibility: Fits OEM primer valve systems
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Johnson/Evinrude | 175158 | Service Valve |
| Johnson/Evinrude | 437228 | Cover & Gasket Assembly |
| Johnson/Evinrude | 341297 / 341071 / 331365 | Related & Superseded Numbers |
| Sierra | 18-7044 / 18-7044-1 | Aftermarket Interchange |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Johnson/Evinrude Owners: This kit fits a wide range of 2-stroke outboards with an existing primer valve system, covering multiple cylinder configurations from 1980 to 1994 and beyond. Please verify your specific model and note the exclusion for 1993 9.9 HP & 15 HP models.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Johnson/Evinrude | All models with primer valve | 9.9-275 | 2-Stroke | 175158, 437228 | Except 1993 9.9 & 15 HP models | |
| Johnson/Evinrude | 2 Cyl 3.000 Bore Cross Flow | 25-35 | 2-Stroke | 1984–1994 | 175158, 437228 | |
| Johnson/Evinrude | 2 Cyl 3.187 Bore Looper | 40-60 | 2-Stroke | 1983–1994 | 175158, 437228 | |
| Johnson/Evinrude | 3 Cyl 3.000 Bore Looper | 60-75 | 2-Stroke | 1983–1988 | 175158, 437228 | |
| Johnson/Evinrude | 3 Cyl 3.187 Bore Looper | 60-70 | 2-Stroke | 1986–1994 | 175158, 437228 | |
| Johnson/Evinrude | 4 Cyl 3.500 Bore Cross Flow | 85-140 | 2-Stroke | 1980–1994 | 175158, 437228 | |
| Johnson/Evinrude | 4 Cyl Small/Big Bore Looper | 120-140 | 2-Stroke | 1986–1994 | 175158, 437228 | |
| Johnson/Evinrude | 6 Cyl 3.500/3.625 Bore Cross Flow | 150-235 | 2-Stroke | 1980–1994 | 175158, 437228 | |
| Johnson/Evinrude | 6 Cyl 3.600 Bore 60° Carb | 150-175 | 2-Stroke | 1991–1994 | 175158, 437228 | |
| Johnson/Evinrude | 6 Cyl 3.685 Big Bore Looper | 200-225 | 2-Stroke | 1988–1994 | 175158, 437228 | |
| Johnson/Evinrude | 8 Cyl Looper | 250-300 | 2-Stroke | 1986–1994 | 175158, 437228 |
Technical Specs
- Product Type
- Carburetor Service Valve Kit
- Installation
- Direct replacement
- Fuel Type
- Gasoline (Marine)
- Connection
- Fits OEM primer valve systems
- Housing Material
- Plastic, Metal
- Housing Color
- Red/Black
- Weight
- 0.05 oz (1.4 g)
- Functionality
- Allows injection of engine tuner and fogging oil through primer valve while maintaining primer functionality
What’s in the Box
- 1 x Service Valve with O-ring (Replaces 175158/331365/126341)
- 1 x Cover and Gasket Assembly (Replaces 437228/341071/333448/371297)
Installation Notes
- Ensure the engine is off, cool, and disconnected from the fuel supply and battery.
- Locate the existing primer valve on the carburetor or intake manifold.
- Carefully disconnect the fuel lines connected to the primer assembly. Note their positions.
- Unscrew and remove the old service valve, cover, and gasket. Clean the mounting surface of any residue.
- Install the new gasket, cover, and service valve from the kit. Tighten screws securely but do not overtighten.
- Reconnect the fuel lines to their original positions on the new valve.
- Reconnect the battery and prime the fuel system using the fuel primer bulb until firm.
- Start the engine and carefully inspect the valve and connections for any fuel leaks.
Troubleshooting & FAQ
Will this kit fit my 1993 15HP Johnson engine?
No. The 1993 9.9HP and 15HP models specifically used a different carburetor and primer system design, making this service valve kit incompatible. It fits most other Johnson/Evinrude models with a primer valve; always verify part numbers before ordering.
What is the purpose of the red knob on the valve?
The red knob allows you to switch the valve's function. In its standard position, it acts as a normal fuel primer. When activated, it opens a port that allows you to inject engine tuner or fogging oil directly into the fuel system for maintenance without disassembling the carburetor.
What are signs that my original primer valve is failing?
Common symptoms of a failing primer valve include difficulty starting a cold engine, a fuel smell or visible leak around the valve area, an engine that floods easily, or a primer button that feels stuck and does not return to its original position.
Is this an OEM part?
This is an aftermarket replacement part, not OEM. It is built to meet or exceed OEM-level specifications with comparable materials. All our parts are manufactured in an ISO 9002 facility and are batch-inspected for quality control and consistency.
What are the shipping speed and cost?
We ship worldwide quickly—typical transit time is 5–15 days. Standard shipping is free for most orders, and expedited options will appear at checkout if available for your region.
What is the warranty and return policy?
This product is covered by a 1-year warranty against manufacturing defects under normal marine use. If you encounter any issues, please contact our support team with your order details for assistance. Returns are accepted within our standard window for unused items in their original condition. See our official 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 quality control.
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