Weil-McLain Magnesium Anode Replacement Kit – 12-1/2 inch L
Replacement magnesium anode kit designed for Weil-McLain AquaPlus water heaters. This kit helps protect the tank from corrosion by diverting corrosive currents to the sacrificial anode. Ideal for models within the AquaPlus 35-85 series.
- Part number / kit ID: 633-500-014 (Weil-McLain) :contentReference[oaicite:0]{index=0}
- Nominal length: 12-1/2 inches (≈ 317.5 mm) :contentReference[oaicite:1]{index=1}
- Kit includes:
- Magnesium anode rod
- O-ring seal
- Insulating washer
- Brass bushing
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- Socket requirement for installation: 1¼-inch socket :contentReference[oaicite:3]{index=3}
- Weight (shipping / package): ~0.73 lb (≈ 0.33 kg) (kit) :contentReference[oaicite:4]{index=4}
- Overall package dimensions: ~13.5 × 2.75 × 2.75 in (L × W × H) :contentReference[oaicite:5]{index=5}
- Application: For use with AquaPlus water heater models (AquaPlus 35, 45, 55, 85 series) :contentReference[oaicite:6]{index=6}
- Material: Magnesium (sacrificial anode) :contentReference[oaicite:7]{index=7}
- Purpose: Protect internal steel tank from corrosion by preferentially corroding (sacrificial action) the anode rod rather than the tank walls
- Compatibility note: This replacement is intended for installations where a 12-1/2″ anode is used; confirm original rod length and connections before installation
Technical & Performance Notes
- The kit’s magnesium rod is selected to corrode preferentially under electrochemical action, thereby preserving the integrity of the water heater tank.
- Sealing and insulation accessories (O-ring, insulating washer, brass bushing) ensure leakage prevention and electrical isolation from tank parts.
- Proper torque and socket size (1¼”) are essential to avoid damage to the anode or heater fittings during installation.
- Periodic inspection and replacement are recommended, as the anode is consumed over time under typical operation and water chemistry conditions.
- Using the correct anode length ensures sufficient contact area and protection; replacing with shorter rods may compromise corrosion protection.
- Ensure all parts (O-ring, washers, bushings) are properly reinstalled to maintain system integrity and prevent galvanic paths to unintended metal parts.
- The kit is dimensioned for compatibility with the AquaPlus series’ anode port and thread/coupling dimensions (per Weil-McLain catalog) :contentReference[oaicite:8]{index=8}.
