Description
The Keihin 4129 826 1900 pump screw is the correct hardware for securing the fuel pump assembly to Keihin CDK carburetors. Using the proper screw length and thread pitch is essential to achieve reliable clamp load without damaging delicate carb castings. Replacing missing or worn hardware with genuine Keihin parts keeps your rebuild clean, professional, and easy to service in the future.
Factory spec screws resist corrosion better than generic hardware store fasteners and are designed to handle repeated removal during jetting or maintenance. Crisp drive heads make it easier to use the correct tool and avoid stripping, which is especially valuable when working in tight engine compartments. Matching all of the pump screws also improves the finished appearance of your carburetor assembly.
- Genuine Keihin 4129 826 1900 pump screw for securing fuel pump components on CDK carburetors.
- Provides the correct length, shoulder, and thread engagement to protect carb bodies while maintaining proper clamping force.
- Ideal replacement for corroded, rounded, or missing original screws discovered during disassembly.
- Plated finish offers improved resistance to fuel, moisture, and salt exposure found in marine use.
- Using OEM hardware helps future service go smoothly and keeps your carburetor looking tidy and professional.
Include these pump screws in your next Keihin CDK rebuild so every fastener matches and the fuel pump section is secured the way Keihin intended.







