Pentair MasterTemp 300 460734 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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$949.99
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Most common fix Pentair Tube Sheet Coil Sealing O-Ring Kit For MasterTemp and Max-E-Therm 300 Heaters | 10 Pack$34.99
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$54.99
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$71.99
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$7.99Notify me
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$49.99Notify me
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Most common fix Pentair Manifold Kit For MasterTemp and Max-E-Therm 300 Heaters$479.99Notify me
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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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$709.99Notify 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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$139.99Notify me
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$151.99
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Most common fix Pentair Back Side Panel For MasterTemp Heaters | Flue Stack Side$199.99Notify me
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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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$69.99
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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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$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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Replacement Parts Diagram for Pentair MasterTemp 300 460734 Heater with Hotspot Lookup for Switches, Flow Sensors, Boards, and More
Use the interactive diagram above to explore key parts for your MasterTemp 300 heater. Then browse the listings below for compatibility notes, availability, and specs.
Restore control interface function with the 472610Z Switch Membrane Pad, compatible with both MasterTemp and Max-E-Therm models.
Maintain accurate temperature readings using the 42001-0053S Thermistor, designed for use across multiple Pentair heater lines.
The 42001-0104S Wiring Harness Kit provides a direct replacement for worn electrical harnesses in MasterTemp and Max-E-Therm heaters.
Regulate gas flow with the 42001-0051S Gas Valve Kit, engineered for compatibility across both heater platforms.
Ensure airflow safety with the 42001-0061S Air Flow Switch, a vital part for proper combustion regulation.
Prevent leaks with the 77707-0120 Manifold O-Ring Kit, ideal for resealing heater manifolds during service.
Switch voltage inputs easily with the 42001-0105S Selector Volt Plug Kit for 120V or 240V applications.
As an alternative replacement, the Swimables SW-41-000 Control Board matches the 42002-0007S layout for both MasterTemp and Max-E-Therm units.
Find these parts and more using the interactive diagram above to ensure proper heater repair and part compatibility.