OEM Waterway Diffuser Screw 819-0018 is a precision-fit fastener engineered for Waterway pool pumps including the SVL56 High-Flow, SMF, and Champion 56-Frame models. This stainless steel screw secures the diffuser firmly to the pump assembly, maintaining proper alignment and preventing performance loss. Measuring 1-1/4 inches in length with a #4-40 thread size, it delivers a reliable fit in high-moisture, chemical-exposed pool environments. Its corrosion-resistant build supports long-term operation in demanding conditions.

• Secures Pump Diffuser in Place: Designed to fasten the diffuser securely to the housing, maintaining alignment and consistent pump performance.

• Sized for Waterway Pump Models: Compatible with Champion 56-Frame, SMF, and SVL56 High-Flow pump assemblies for a direct replacement.

• Built with Stainless Steel: Manufactured from corrosion-resistant stainless steel to handle the wear and chemical exposure of pool environments.

• Exact #4-40 Thread and 1-1/4" Length: Engineered for precise placement and dependable attachment within the Waterway pump housing.

• Supports Long-Term Maintenance: Ideal for replacing rusted or stripped screws, helping to ensure ongoing performance and serviceability.

• (1)ÊWaterway 819-0018 Screw

• Waterway SVL High Flow Pumps
• Waterway SMF Pumps
• Waterway Champion 56 Frame Pumps
• Waterway Mustange VS 1.4Hp Pumps

Note: This screw may be compatible with your system, please refer to your owners manual to ensure compatibility.

Stainless Steel Screw for Waterway Diffusers

waterway 819-0018 diffuser screw stainless steel

#4-40 screw 1.25 inch for champion pump

secure waterway diffuser with correct oem screw

pump screw for svl56 smf and mustang vs pumps

pool pump screw to fasten diffuser housing

Common Troubleshooting Queries

pump diffuser loose replace with 819-0018 screw

how to fix vibrating diffuser on waterway pump

screw missing from svl56 pump diffuser plate

oem replacement screw for champion 56-frame

install new screw to stabilize diffuser alignment

Specs and Compatibility

#4-40 thread size screw for waterway pumps

fits smf, svl56, and mustang pump models

stainless steel construction resists corrosion

correct length screw for diffuser install 1.25 inch

designed for long-term pool environment exposure