1" 4500W Stainless Steel Dry Fire Resistant Screw-in Element LWD (240V)

Rheem SP17618AM – 4500W 240V Stainless Steel Dry-Fire Resistant Screw-In Heating Element (LWD)

The Rheem SP17618AM is an OEM 1" screw-in low watt density (LWD) heating element rated at 4500 watts and 240 volts. Constructed from stainless steel, it is engineered for use in electric water heaters requiring enhanced dry-fire resistance and corrosion durability. This element is particularly well-suited for high-demand or replacement applications in systems where mineral buildup and dry-fire risk are operational concerns.

Designed for compatibility with Rheem electric water heaters, this element is a direct replacement component that meets original manufacturing specifications. Its low watt density profile minimizes scale accumulation, improving element longevity and ensuring more consistent heat transfer under demanding conditions.

Application Benefits

• Low Watt Density Design – Reduces surface temperature, mitigating scale formation and increasing service life in hard water conditions.
• Dry-Fire Resistant Core – Resists damage during startup or low-water events, protecting tank integrity and reducing premature failure.
• OEM Fit and Function – Matches original Rheem specifications for straightforward replacement with no modifications required.
• Stainless Steel Sheath – Offers superior corrosion resistance and structural stability over copper or zinc-coated alternatives.

Technical Specifications

• Part Number: SP17618AM
• Voltage Rating: 240V
• Wattage: 4500 Watts
• Thread Type: 1" NPSM (National Pipe Straight Mechanical)
• Element Style: Screw-in, stainless steel sheath, low watt density
• Dry-Fire Resistance: Yes

Installation Notes

Install using a standard 1" water heater element wrench. Ensure tank is fully drained and power is off prior to replacement. Torque per OEM guidelines to maintain gasket seal integrity. Element is compatible with Rheem residential electric models requiring a 4500W, 240V screw-in element; always verify model-specific compatibility before installation.

Professional Considerations

• For Contractors: Preferred for service calls involving failed copper-sheathed elements or repeated dry-fire incidents. Reduced callback risk due to increased thermal and corrosion tolerance.
• For Maintenance Programs: Ideal upgrade for preventative replacement in high-use or sediment-prone systems.

Summary

The Rheem SP17618AM is a professional-grade heating element offering robust performance and extended operational lifespan in demanding electric water heater applications. Its dry-fire resistant design and stainless steel construction make it a reliable solution for ensuring consistent hot water delivery in both new installations and field replacements.