• Pentair MasterTemp Natural Gas High Performance Heater 400HD BTU 460805 parts diagram

Pentair MasterTemp Natural Gas High Performance Heater 400HD BTU 460805 Parts & Diagram

Replacement parts and exploded parts diagram for the Pentair MasterTemp Natural Gas High Performance Heater 400HD BTU (model 460805). Find the part on the diagram, then look for the same number (#) next to each part in the Available Parts list and add the parts you need to your cart.

Parts marked Alternate are compatible replacements from other manufacturers.

Other Parts on This Diagram

These parts are not listed for online purchase. Contact us with the diagram number and part number to order.

  • #1 – 474059 – Mastertemp 250 Tube Sheet Coil Assy Kit (Water System Parts- For Heaters Manufactured after 1/12/09 (New Tub Design))
  • #1 – 77707-0234 – 400K Tube Sheet Coil Assy (BEFORE 1/13/09) (Water System Parts)
  • #1 – 77707-0244 – 400K Cu-Ni Tube SHT Coil Assy (BEFORE 1/13/09) (Water System Parts)
  • #1 – 474065 – 400K Cu-Ni Tube Sheet Coil Assy (AFTER 1/12/09) (Water System Parts- For Heaters Manufactured after 1/12/09 (New Tub Design))
  • #1 – 473710 – Mastertemp 250 NG HD Tube Sheet Coil Assy (Water System Parts)
  • #1 – 474063 – 250HD AFT 1/09 Tube Sheet Coil Assy Kit (Water System Parts- For Heaters Manufactured after 1/12/09 (New Tub Design))
  • #1 – 42002-0035Z – Mastertemp Display Cover (Electrical System)
  • #2 – 38404-4097S – .75" Service Union (Burner System)
  • #2 – 42001-0030S – Ignitor Bracket (Electrical System)
  • #5 – 42002-0025S – Max-E-Therm Automatic GAS Shutoff Switch (Electrical System)
  • #5 – 42002-0025T – Automatic GAS Shut-Off Switch (Electrical System)
  • #8 – 42001-0056S – Max-E-Therm Terminal Board (Electrical System)
  • #9 – 32850-0099z – 32850-0099 1.25A Max-E-Therm Firemans Switch Fuse (Electrical System)
  • #10 – 42001-0052S – Max-E-Therm Ignition Control Module (Electrical System)
  • #12 – 42001-0061S – Max-E-Therm AIR Flow Switch (Electrical System)
  • #13 – 42002-0007S – Max-E-Therm Control Board Kit (Electrical System)
  • #14 – 77707-0017 – Connector Tube W/ Oring (Water System Parts)
  • #14 – 42002-0034Z – Mastertemp Heater Top (Electrical System)
  • #15 – 42001-0200S – Combustion Chamber Assy (Burner System)
  • #15 – 474095 – Combustion Chamber Assy (AFTER 1/12/09) (Burner System)
  • #18 – U9-152 – Oring (Water System Parts)
  • #20 – 072555 – #2-112 Nitrile O-Ring Cover
  • #20 – 25010-0200 – Pld/Ptm AIR Relief Valve Assy (Water System Parts)
  • #20 – 474094 – Combustion Chamber Cover Assy (AFTER 1/12/09) (Burner System)
  • #21 – U78-60ZPS – .75" Zinc Square Head Pipe Plug (Water System Parts)
  • #21 – 42002-0005S – Max-E-Therm Metal Vent Cover (Burner System)
  • #23 – 42002-0039Z – Mastertemp Front/ Back Panel (Burner System)
  • #24 – 42002-0033Z – Mastertemp Side Panel (MANIFOLD SIDE) (Burner System)
  • #26 – 42002-0032Z – Mastertemp Side Panel (FLUE SIDE) (Burner System)
  • Not Shown – 77707-0120 – Max-E-Therm Manifold Oring Kit (Water System Parts)
  • Not Shown – 460940 – 400K Asme Heat Exchanger Kit
  • Not Shown – 474096 – 400K Asme Heat Exchanger Kit (Water System Parts - For ASME Heaters Manufactured after 03/24/09)
  • Not Shown – 460924 – Asme Mastertemp Thermal Regulator Kit (BEFORE 10/2012) (Water System Parts)
  • Not Shown – 77707-0411 – 400K NG GAS Orifice Kit (Burner System - Not included with heater. Order separately.)
  • Not Shown – 77707-0011 – Max-E-Therm Adapter Plate Gasket Kit (Burner System)
  • Not Shown – 77707-0204 – 400K BTU Flameholder Kit (Burner System)
  • Not Shown – 77707-0008 – Max-E-Therm Insulation Kit (Burner System)
  • Not Shown – 42001-0074S – Lower Enclosure Insulation Kit (Burner System)
  • Not Shown – 42001-0104S – Max-E-Therm Wiring Harness (Electrical System)
  • Not Shown – 42001-0105S – Max-E-Therm 120/240V Plug Kit (Electrical System)

Please confirm your model number matches your existing equipment before ordering.

GTIN:
SKU: DIAGRAM-460805
Brand: Pentair
$4.77 - $1,199.00
Tax and shipping are calculated at checkout.

Available Parts & Components

  • Pentair MasterTemp/Max-E-Therm Heater Tube Sheet Coil Assembly Kit - 474061

    Pentair MasterTemp/Max-E-Therm Heater Tube Sheet Coil Assembly Kit - 474061

    SKU: 474061
    View product
    $1,199.00
  • Pentair MasterTemp & Sta-Rite Max-E-Therm Gas Control Valve Kit - 42001-0051S

    Pentair MasterTemp & Sta-Rite Max-E-Therm Gas Control Valve Kit - 42001-0051S

    SKU: 42001-0051S
    View product
    $315.00
  • Pentair MasterTemp/Max-E-Therm Heater Manifold Kit 400K - 77707-0016

    Pentair MasterTemp/Max-E-Therm Heater Manifold Kit 400K - 77707-0016

    SKU: 77707-0016
    View product
    $469.00
  • Pentair Water Pool and Spa Inc Diverter Shaft O-Ring 1.5

    Pentair Water Pool and Spa Inc Diverter Shaft O-Ring 1.5" Tm Hi Flow Mpv - 272511Z

    SKU: 272511Z
    View product
    $17.37
  • Pentair Coil/Tubesheet O-Ring Pkg - 77707-0119

    Pentair Coil/Tubesheet O-Ring Pkg - 77707-0119

    SKU: 77707-0119
    View product
    $69.00
  • Pentair Ignitor With Gasket Kit - 77707-0054

    Pentair Ignitor With Gasket Kit - 77707-0054

    SKU: 77707-0054
    View product
    $78.00
  • Hayward O-Ring Viton Drain Plug - SPX0605Z2V

    Hayward O-Ring Viton Drain Plug - SPX0605Z2V

    SKU: SPX0605Z2V
    View product
    $18.50
  • Pentair Gskt Igntr Svc - 42001-0066S

    Pentair Gskt Igntr Svc - 42001-0066S

    SKU: 42001-0066S
    View product
    $62.84
  • Pentair MasterTemp & Sta-Rite Max-E-Therm 400 Natural Gas Heater Blower Kit - 77707-0253

    Pentair MasterTemp & Sta-Rite Max-E-Therm 400 Natural Gas Heater Blower Kit - 77707-0253

    SKU: 77707-0253
    View product
    $629.00
  • Pentair Hi Limit Switch - 42001-0063S

    Pentair Hi Limit Switch - 42001-0063S

    SKU: 42001-0063S
    View product
    $59.00
  • Pentair Air Orifice Kit 400K - 77707-0113

    Pentair Air Orifice Kit 400K - 77707-0113

    SKU: 77707-0113
    View product
    $71.76
  • Pentair Thermistor Max-E-Therm - 42001-0053S

    Pentair Thermistor Max-E-Therm - 42001-0053S

    SKU: 42001-0053S
    View product
    $75.00
  • Pentair MasterTemp Heater Manifold Bypass Valve Kit - 77707-0001

    Pentair MasterTemp Heater Manifold Bypass Valve Kit - 77707-0001

    SKU: 77707-0001
    View product
    $66.62
  • Pentair Water Pressure Switch - 42001-0060S

    Pentair Water Pressure Switch - 42001-0060S

    SKU: 42001-0060S
    View product
    $75.00
  • Pentair MasterTemp Pool Heater Transformer, 115/230V - 42001-0107S

    Pentair MasterTemp Pool Heater Transformer, 115/230V - 42001-0107S

    SKU: 42001-0107S
    View product
    $74.16
  • Pentair Mastertemp Sta-Rite Control Board Kit Replaces 42002-0007S - 461105Z

    Pentair Mastertemp Sta-Rite Control Board Kit Replaces 42002-0007S - 461105Z

    SKU: 461105Z
    View product
    $455.00
  • Swimables Mastertemp Max-E-Therm Style Control Board Replaces 461105 - SW-41-000

    Swimables Mastertemp Max-E-Therm Style Control Board Replaces 461105 - SW-41-000

    SKU: SW-41-000
    View product
    $389.00
  • Pentair Thermal Regulator Kit - 77707-0010

    Pentair Thermal Regulator Kit - 77707-0010

    SKU: 77707-0010
    View product
    $95.00
  • Pentair Membrane Pad Kit - 472610Z

    Pentair Membrane Pad Kit - 472610Z

    SKU: 472610Z
    View product
    $109.00
  • Pentair Thermal Regulator With Clip - 38000-0007S

    Pentair Thermal Regulator With Clip - 38000-0007S

    SKU: 38000-0007S
    View product
    $62.00
  • Pentair Stack Flue Sensor - 42002-0024S

    Pentair Stack Flue Sensor - 42002-0024S

    SKU: 42002-0024S
    View product
    $109.00
  • Pentair Sta-Rite Cristal-Flo Filter Valve Flange O-Ring - U9-371

    Pentair Sta-Rite Cristal-Flo Filter Valve Flange O-Ring - U9-371

    SKU: U9-371
    View product
    $15.90
  • Aladdin Piston O-Ring Cap/ Valve/ - O-122-9

    Aladdin Piston O-Ring Cap/ Valve/ - O-122-9

    SKU: O-122-9
    View product
    $8.82
  • Val-Pak Swimquip Piston O-Ring Set 2

    Val-Pak Swimquip Piston O-Ring Set 2" - V22-116

    SKU: V22-116
    Out of stock
    View product
    $28.00
  • Pentair Multiport Valve Drain Plug w/ O-Ring - U178-920PZ

    Pentair Multiport Valve Drain Plug w/ O-Ring - U178-920PZ

    SKU: U178-920PZ
    View product
    $19.65
  • Aladdin Shaft O-Ring Universal Stem/ Drain/ - O-39-9

    Aladdin Shaft O-Ring Universal Stem/ Drain/ - O-39-9

    SKU: O-39-9
    View product
    $4.77
  • Polaris O-Ring F/Shaft 5Pk - P40

    Polaris O-Ring F/Shaft 5Pk - P40

    SKU: P40
    View product
    $17.37
  • Pentair Mastertemp Starite Pressure Relief Valve Replacement Kit - 473715Z

    Pentair Mastertemp Starite Pressure Relief Valve Replacement Kit - 473715Z

    SKU: 473715Z
    View product
    $129.00
  • Conbraco Pressure Relief Valve 10-418-10 .75

    Conbraco Pressure Relief Valve 10-418-10 .75"FPT 50PSI Bronze

    SKU: 1041810
    View product
    $51.63
  • Pentair Sta-Rite Union Half 2 inch Slip - PKG188Z

    Pentair Sta-Rite Union Half 2 inch Slip - PKG188Z

    SKU: PKG188Z
    View product
    $39.00
  • Pentair Water Pool and Spa Inc Bypass Access Plug Asme Mastertemp - 472648Z

    Pentair Water Pool and Spa Inc Bypass Access Plug Asme Mastertemp - 472648Z

    SKU: 472648Z
    Out of stock
    View product
    $374.35
  • Pentair Water Pool and Spa Inc Valve Kit (before 10/2012) Asme Mastertemp Bypass - 460923

    Pentair Water Pool and Spa Inc Valve Kit (before 10/2012) Asme Mastertemp Bypass - 460923

    SKU: 460923
    View product
    $299.60
  • Sta-Rite MasterTemp MAX-E-THERM 400k Btu NG to LP Conversion - 77707-1441

    Sta-Rite MasterTemp MAX-E-THERM 400k Btu NG to LP Conversion - 77707-1441

    SKU: 77707-1441
    View product
    $48.50
  • Sta-Rite MasterTemp MAX-E-THERM 400k Btu LP to NG Conversion - 77707-1411

    Sta-Rite MasterTemp MAX-E-THERM 400k Btu LP to NG Conversion - 77707-1411

    SKU: 77707-1411
    View product
    $49.00
Subtotal $0.00
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Section title

Replacement parts and exploded parts diagram for the Pentair MasterTemp Natural Gas High Performance Heater 400HD BTU (model 460805). Find the part on the diagram, then look for the same number (#) next to each part in the Available Parts list and add the parts you need to your cart.

Parts marked Alternate are compatible replacements from other manufacturers.

Other Parts on This Diagram

These parts are not listed for online purchase. Contact us with the diagram number and part number to order.

  • #1 – 474059 – Mastertemp 250 Tube Sheet Coil Assy Kit (Water System Parts- For Heaters Manufactured after 1/12/09 (New Tub Design))
  • #1 – 77707-0234 – 400K Tube Sheet Coil Assy (BEFORE 1/13/09) (Water System Parts)
  • #1 – 77707-0244 – 400K Cu-Ni Tube SHT Coil Assy (BEFORE 1/13/09) (Water System Parts)
  • #1 – 474065 – 400K Cu-Ni Tube Sheet Coil Assy (AFTER 1/12/09) (Water System Parts- For Heaters Manufactured after 1/12/09 (New Tub Design))
  • #1 – 473710 – Mastertemp 250 NG HD Tube Sheet Coil Assy (Water System Parts)
  • #1 – 474063 – 250HD AFT 1/09 Tube Sheet Coil Assy Kit (Water System Parts- For Heaters Manufactured after 1/12/09 (New Tub Design))
  • #1 – 42002-0035Z – Mastertemp Display Cover (Electrical System)
  • #2 – 38404-4097S – .75" Service Union (Burner System)
  • #2 – 42001-0030S – Ignitor Bracket (Electrical System)
  • #5 – 42002-0025S – Max-E-Therm Automatic GAS Shutoff Switch (Electrical System)
  • #5 – 42002-0025T – Automatic GAS Shut-Off Switch (Electrical System)
  • #8 – 42001-0056S – Max-E-Therm Terminal Board (Electrical System)
  • #9 – 32850-0099z – 32850-0099 1.25A Max-E-Therm Firemans Switch Fuse (Electrical System)
  • #10 – 42001-0052S – Max-E-Therm Ignition Control Module (Electrical System)
  • #12 – 42001-0061S – Max-E-Therm AIR Flow Switch (Electrical System)
  • #13 – 42002-0007S – Max-E-Therm Control Board Kit (Electrical System)
  • #14 – 77707-0017 – Connector Tube W/ Oring (Water System Parts)
  • #14 – 42002-0034Z – Mastertemp Heater Top (Electrical System)
  • #15 – 42001-0200S – Combustion Chamber Assy (Burner System)
  • #15 – 474095 – Combustion Chamber Assy (AFTER 1/12/09) (Burner System)
  • #18 – U9-152 – Oring (Water System Parts)
  • #20 – 072555 – #2-112 Nitrile O-Ring Cover
  • #20 – 25010-0200 – Pld/Ptm AIR Relief Valve Assy (Water System Parts)
  • #20 – 474094 – Combustion Chamber Cover Assy (AFTER 1/12/09) (Burner System)
  • #21 – U78-60ZPS – .75" Zinc Square Head Pipe Plug (Water System Parts)
  • #21 – 42002-0005S – Max-E-Therm Metal Vent Cover (Burner System)
  • #23 – 42002-0039Z – Mastertemp Front/ Back Panel (Burner System)
  • #24 – 42002-0033Z – Mastertemp Side Panel (MANIFOLD SIDE) (Burner System)
  • #26 – 42002-0032Z – Mastertemp Side Panel (FLUE SIDE) (Burner System)
  • Not Shown – 77707-0120 – Max-E-Therm Manifold Oring Kit (Water System Parts)
  • Not Shown – 460940 – 400K Asme Heat Exchanger Kit
  • Not Shown – 474096 – 400K Asme Heat Exchanger Kit (Water System Parts - For ASME Heaters Manufactured after 03/24/09)
  • Not Shown – 460924 – Asme Mastertemp Thermal Regulator Kit (BEFORE 10/2012) (Water System Parts)
  • Not Shown – 77707-0411 – 400K NG GAS Orifice Kit (Burner System - Not included with heater. Order separately.)
  • Not Shown – 77707-0011 – Max-E-Therm Adapter Plate Gasket Kit (Burner System)
  • Not Shown – 77707-0204 – 400K BTU Flameholder Kit (Burner System)
  • Not Shown – 77707-0008 – Max-E-Therm Insulation Kit (Burner System)
  • Not Shown – 42001-0074S – Lower Enclosure Insulation Kit (Burner System)
  • Not Shown – 42001-0104S – Max-E-Therm Wiring Harness (Electrical System)
  • Not Shown – 42001-0105S – Max-E-Therm 120/240V Plug Kit (Electrical System)

Please confirm your model number matches your existing equipment before ordering.

Key Features

  • Exploded parts diagram for the Pentair MasterTemp 400 HD gas pool heater (model 460805)
  • 34 replacement parts available to order online
  • Diagram number shown next to every part for easy matching
  • Genuine Pentair parts plus compatible alternates
  • Add multiple parts to your cart at once