Pentair MasterTemp 125 461059 Heater Diagram & Part List
Find your parts diagram
Sticker on the pump body (the part with the basket), not on the motor. Motor labels from Century, A.O. Smith or Regal won't match parts.
Label on the side of the tank near the base. Size is in sq ft, e.g. 420 sq ft = C4030 or CCP420.
Rating plate inside the front access panel. Note the BTU and gas type (NG or LP).
Molded into the body or printed on top. Robotic cleaners: on the power supply.
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Having a problem? Pick one to see the parts that usually fix it (optional)
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$7.99Notify me
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Most common fix Pentair Tube Sheet Coil Assembly For MasterTemp 125 Heaters$698.99
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$54.99
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$71.99
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$49.99Notify me
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Most common fix Pentair Manifold Kit For Mastertemp 125 Heater$249.99
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$96.99
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$32.99
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$11.99
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Most common fix Pentair Thermal Regulator For MasterTemp and Max-E-Therm Heaters$69.99
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$399.99
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$67.99Notify me
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Most common fix Pentair Flameholder Kit For Max-E-Therm and MasterTemp Heaters$126.99Notify me
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$151.99
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Most common fix Pentair Molded Manifold Side Panel For MasterTemp Heaters$279.99Notify me
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Most common fix Pentair Molded Side Service Panel For MasterTemp Heaters$317.80Notify me
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Most common fix Pentair Display Cover For MasterTemp Heaters$54.99
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$89.99Notify me
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Most common fix Pentair Control Board with 6 Button Pad For MasterTemp and Max-E-Therm Heaters | 42002-0007S$499.99
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$69.99
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$104.99
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Most common fix Pentair Dual Voltage Transformer Kit For Max-E-Therm and MasterTemp Heaters | 115V/230V$75.99
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$299.99
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Most common fix Pentair Terminal Board For MasterTemp And Max-E-Therm$49.99Notify me
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Most common fix Pentair Fireman's Switch Fuse 1.25 Amp MasterTemp Sta-Rite Max-E-Therm ETI 400 Gas Heaters$12.99
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$81.99
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Most common fix Pentair High Limit Switch for MasterTemp And Max-E-Therm Heaters$59.99
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Most common fix Pentair Air Flow Switch For MasterTemp And Max-E-Therm Heaters$126.99
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$54.99
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Pentair MasterTemp 125 461059 Heater Diagram & Part List with Clickable Hotspots for Control Boards, Valves, Thermistors, and Ignition Components
Use the interactive diagram above to locate compatible parts for your Pentair MasterTemp 125 heater, then explore each listing below for specs, availability, and free shipping.
Restore interface control with the 472610Z Switch Membrane Pad, designed for both MasterTemp and Max-E-Therm heaters.
Replace worn internals with the 474972 Manifold Kit, built specifically for the MasterTemp 125 heater.
Monitor water temperature with the 42001-0053S Thermistor, compatible across MasterTemp, Max-E-Therm, and ETi 400 heaters.
The 42001-0104S Wiring Harness Kit provides essential connectivity between internal components on MasterTemp and Max-E-Therm models.
Ensure consistent ignition with the 77707-0054 Igniter and Gasket Kit for Pentair gas heaters.
Seal plumbing connections with the 474974 1.5" Union Kit, made to fit the MasterTemp 125 inlet and return lines.
The 42001-0051S Combination Gas Control Valve Kit regulates fuel flow for safe combustion in MasterTemp and Max-E-Therm units.
Manage all functions with the 42002-0007S Control Board with 6-Button Pad, compatible with multiple Pentair heater models.
All Pentair MasterTemp 125 replacement parts—thermistors, igniters, boards, and valves—are in stock with free shipping and the best online prices available.