Pool Heater Parts

Pool Heater Parts

1358 products

  • O-Ring, Hayward H-Series/Induced Draft/Low NOx/ED2, Header

    O-Ring, Hayward H-Series/Induced Draft/Low NOx/ED2, Header

    O-Ring, Hayward H-Series/Induced Draft/Low NOx/ED2, Header

    Hayward Pool Products

    SKU: PST-47-150-1858
    MPN: HAXHOR1930
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 2500 Website Price Number: 2500 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110522564673","mpn":"HAXHOR1930","replacedby":"PST-90-423-5273?11383","saleprice":"0","warehouselocations":"Bloomfield, CT | Murray, UT","warranty":"12 Months","websiteprice":"25"}
    $27.60
    $59.90 $27.60
    Liquid error (snippets/card-product line 583): comparison of String with 0 failed
  • Split Nut, Balboa, Heater Union, Black, Less Screws

    Split Nut, Balboa, Heater Union, Black, Less Screws

    Split Nut, Balboa, Heater Union, Black, Less Screws

    Balboa Water Group

    SKU: PST-89-138-1005
    MPN: 50086
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 1440.0 Website Price Number: 1440.0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110755905601","discontinued":false,"mpn":"50086","replacedby":"PST-89-238-1040?5034","saleprice":"0","warehouselocations":"Bloomfield, CT","warranty":"12 Months","websiteprice":"14.4"}
    $13.90
    $33.30 $13.90
    Liquid error (snippets/card-product line 583): comparison of String with 0 failed
  • D-2 Indoor Power Vent, Raypak 336-407, 115/230v

    D-2 Indoor Power Vent, Raypak 336-407, 115/230v

    D-2 Indoor Power Vent, Raypak 336-407, 115/230v

    Raypak

    SKU: PST-47-197-1178
    MPN: 009833
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 85880.0 Website Price Number: 85880.0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110526824513","discontinued":false,"mpn":"009833","saleprice":"0","warehouselocations":"Memphis, TN | Bloomfield, CT","warranty":"12 Months","websiteprice":"858.8"}
    $884.50
    $1,366.80 $884.50
    Liquid error (snippets/card-product line 583): comparison of String with 0 failed
  • Blower, Zodiac Jandy LXi, with Gasket

    Blower, Zodiac Jandy LXi, with Gasket

    Blower, Zodiac Jandy LXi, with Gasket

    Zodiac

    SKU: PST-47-295-1085
    MPN: R0455600
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 85350.0 Website Price Number: 85350.0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110537310273","discontinued":false,"mpn":"R0455600","saleprice":"0","warehouselocations":"Tucson, AZ | Newnan, GA","warranty":"12 Months","websiteprice":"853.5"}
    $884.00
    $1,364.80 $884.00
    Liquid error (snippets/card-product line 583): comparison of String with 0 failed
  • IDXL2TRF1930 Hayward Transformer 240V

    IDXL2TRF1930 Hayward Transformer 240V

    IDXL2TRF1930 Hayward Transformer 240V

    Hayward

    SKU: PST-IDXL2TRF1930
    MPN: IDXL2TRF1930
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 16260.0 Website Price Number: 16260.0 All Metafields: {"mpn":"IDXL2TRF1930","saleprice":"0","warehouselocations":"Bloomfield, CT | Murray, UT","websiteprice":"162.6"}
    $180.80
    $308.00 $180.80
    Liquid error (snippets/card-product line 583): comparison of String with 0 failed
  • Transformer, Raypak, 130A, 115v/230v, 24v

    Transformer, Raypak, 130A, 115v/230v, 24v

    Transformer, Raypak, 130A, 115v/230v, 24v

    Raypak

    SKU: PST-47-197-1091
    MPN: 011605F
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 9530.0 Website Price Number: 9530.0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110526103617","discontinued":false,"mpn":"011605F","saleprice":"0","warehouselocations":"Bloomfield, CT","warranty":"12 Months","websiteprice":"95.3"}
    $89.40
    $170.40 $89.40
    Liquid error (snippets/card-product line 583): comparison of String with 0 failed
  • HAXFOR1930 Hayward Orings Pair

    HAXFOR1930 Hayward Orings Pair

    HAXFOR1930 Hayward Orings Pair

    Hayward

    SKU: PST-HAXFOR1930
    MPN: HAXFOR1930
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"mpn":"HAXFOR1930","warehouselocations":"Bloomfield, CT | Murray, UT"}
    $18.90
    $42.70 $18.90
  • S0063700 Pentair Flange Gasket 2/Pkg

    S0063700 Pentair Flange Gasket 2/Pkg

    S0063700 Pentair Flange Gasket 2/Pkg

    Pentair

    SKU: PST-S0063700
    MPN: S0063700
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 1990.0 Website Price Number: 1990.0 All Metafields: {"mpn":"S0063700","saleprice":"0","warehouselocations":"Bloomfield, CT","websiteprice":"19.9"}
    $19.50
    $44.50 $19.50
    Liquid error (snippets/card-product line 583): comparison of String with 0 failed
  • CZXELE7623 Hayward Element 5500W 240V

    CZXELE7623 Hayward Element 5500W 240V

    CZXELE7623 Hayward Element 5500W 240V

    Hayward

    SKU: PST-CZXELE7623
    MPN: CZXELE7623
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 8930.0 Website Price Number: 8930.0 All Metafields: {"mpn":"CZXELE7623","saleprice":"0","warehouselocations":"Bloomfield, CT | Murray, UT","websiteprice":"89.3"}
    $96.50
    $184.90 $96.50
    Liquid error (snippets/card-product line 583): comparison of String with 0 failed
  • Square Ring, 1-3/16"id, 1-7/16"od, Generic

    Square Ring, 1-3/16"id, 1-7/16"od, Generic

    Square Ring, 1-3/16"id, 1-7/16"od, Generic

    Horizon Spa & Pool Parts

    SKU: PST-90-555-1000
    MPN: 90-555-1000
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 740.0 Website Price Number: 740.0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110795522113","discontinued":false,"mpn":"90-555-1000","saleprice":"0","warehouselocations":"Memphis, TN | Tucson, AZ","warranty":"12 Months","websiteprice":"7.4"}
    $9.90
    $14.20 $9.90
    Liquid error (snippets/card-product line 583): comparison of String with 0 failed
  • RA0079000 Pentair Gauge Temp/Press500-2000

    RA0079000 Pentair Gauge Temp/Press500-2000

    RA0079000 Pentair Gauge Temp/Press500-2000

    Pentair

    SKU: PST-RA0079000
    MPN: RA0079000
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 17150.0 Website Price Number: 17150.0 All Metafields: {"mpn":"RA0079000","saleprice":"0","warehouselocations":"Bloomfield, CT","websiteprice":"171.5"}
    $159.50
    $272.50 $159.50
    Liquid error (snippets/card-product line 583): comparison of String with 0 failed
  • Gasket, Jandy XL-2, Flange, Generic

    Gasket, Jandy XL-2, Flange, Generic

    Gasket, Jandy XL-2, Flange, Generic

    Horizon Spa & Pool Parts

    SKU: PST-90-423-2138
    MPN: 90-423-2138
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 850.0 Website Price Number: 850.0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110782152769","discontinued":false,"mpn":"90-423-2138","saleprice":"0","warehouselocations":"Memphis, TN | Tucson, AZ","warranty":"12 Months","websiteprice":"8.5"}
    $9.90
    $19.30 $9.90
    Liquid error (snippets/card-product line 583): comparison of String with 0 failed
  • Tailpiece, Heater, 3" Male Buttress Thread x 1" Barb, 90 deg

    Tailpiece, Heater, 3" Male Buttress Thread x 1" Barb, 90 deg

    Tailpiece, Heater, 3" Male Buttress Thread x 1" Barb, 90 deg

    Hydro-Quip

    SKU: PST-89-371-1075
    MPN: 42-2386-K
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 1530.0 Website Price Number: 1530.0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110764064833","discontinued":false,"mpn":"42-2386-K","saleprice":"0","warehouselocations":"Memphis, TN","websiteprice":"15.3"}
    $15.70
    $35.00 $15.70
    Liquid error (snippets/card-product line 583): comparison of String with 0 failed
  • R3000701 Zodiac Fan Motor, 208 Vac & 230 Vac

    R3000701 Zodiac Fan Motor, 208 Vac & 230 Vac

    R3000701 Zodiac Fan Motor, 208 Vac & 230 Vac

    Zodiac

    SKU: PST-R3000701
    MPN: R3000701
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 55970.0 Website Price Number: 55970.0 All Metafields: {"mpn":"R3000701","saleprice":"0","warehouselocations":"Bloomfield, CT","websiteprice":"559.7"}
    $575.90
    $889.80 $575.90
    Liquid error (snippets/card-product line 583): comparison of String with 0 failed
  • O-Ring Kit, Pentair MasterTemp 125, Coil/Tubesheet Sealing

    O-Ring Kit, Pentair MasterTemp 125, Coil/Tubesheet Sealing

    O-Ring Kit, Pentair MasterTemp 125, Coil/Tubesheet Sealing

    Pentair Pool Products

    SKU: PST-90-102-1000
    MPN: 474973
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 4960.0 Website Price Number: 4960.0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110774812737","discontinued":false,"mpn":"474973","prop65":"This product can expose you to chemicals which is known to the State of California to cause cancer and reproductive harm.","saleprice":"0","warehouselocations":"Newnan, GA | Bloomfield, CT","warranty":"12 Months","websiteprice":"49.6"}
    $50.10
    $104.40 $50.10
    Liquid error (snippets/card-product line 583): comparison of String with 0 failed
  • Snap Nut, Hydro-Quip 1-1/2", Heater

    Snap Nut, Hydro-Quip 1-1/2", Heater

    Snap Nut, Hydro-Quip 1-1/2", Heater

    Hydro-Quip

    SKU: PST-89-355-1510
    MPN: 42-0014
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 1050.0 Website Price Number: 1050.0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110763900993","discontinued":false,"mpn":"42-0014","saleprice":"0","warehouselocations":"Memphis, TN | Tucson, AZ","warranty":"12 Months","websiteprice":"10.5"}
    $11.00
    $25.80 $11.00
    Liquid error (snippets/card-product line 583): comparison of String with 0 failed

Swimming Pool Heater Replacement Parts

Repair your pool or spa heater quickly and cost-effectively with genuine and OEM-compatible pool heater replacement parts. PST Pool Supplies stocks a comprehensive selection of heater service components for Hayward, Raypak, Pentair, Zodiac, Jandy, Balboa, and Hydro-Quip heaters — including O-rings, transformers, blowers, gaskets, fan motors, elements, and plumbing fittings, starting from $10.

The most frequently replaced pool heater components include O-rings and gaskets — the Hayward H-Series/Induced Draft/Low NOx/ED2 header O-ring and Pentair flange gaskets (S0063700, 2 per pack) are standard service items for their respective heater brands, replaced whenever the heater is opened for internal service. The HAXFOR1930 Hayward O-ring pair and Jandy XL-2 flange gasket cover the Hayward and Jandy lineups for common leak points. The Raypak 336–407 D-2 indoor power vent (115/230V) and Zodiac Jandy LXi blower with gasket are major repair components for induced-draft and power-vent heater configurations. The Raypak 130A transformer and Hayward IDXL2TRF1930 transformer (240V) restore ignition and control function when the control circuit fails due to electrical surge or component age. The Pentair temperature/pressure gauge (RA0079000, 500–2000 range) and Hayward element 5500W 240V (electric heater) round out the most commonly required heater service parts. For complete pool and spa heaters, see our spa heater collection. Hayward heater parts documentation is available at Hayward's official support portal.

Pool heater repairs should always begin with identifying the exact heater model number — found on the rating plate on the heater cabinet side or back. Heater model numbers determine which specific gaskets, O-rings, and electrical components are required, as specifications vary significantly across model generations and heater sizes. Gas heater repairs involving the heat exchanger, gas valve, igniter, or flue components should be performed by a licensed service technician — improper repair of gas components creates safety hazards. Electrical components (transformers, blowers, elements, fan motors) can typically be replaced by competent DIY installers following manufacturer service manuals, but always disconnect power before beginning any heater service. If you're unsure which part you need, contact our team with your heater model number and symptom description.

Shop pool heater replacement parts and restore your heater to full operation without the cost of a complete replacement.

Frequently Asked Questions

My pool heater is leaking water — what part needs replacing?
Pool heater water leaks most commonly originate from header O-rings, flange gaskets, or union connections — the seals between the heater's internal heat exchanger headers and the external plumbing fittings. Start by drying the exterior of the heater and running it briefly, then inspect for the exact source of the drip. Leaks at the large hex-head connections at the front of the heater body (inlet/outlet headers) are typically header O-rings — the Hayward H-Series header O-ring and Pentair flange gasket kit cover the most common configurations. Leaks at the pipe union connections where supply/return plumbing meets the heater are usually worn union O-rings or cracked union bodies. If the leak appears to come from inside the heater cabinet (visible only when the front panel is removed), it may indicate a heat exchanger crack — a more serious repair requiring a service technician. Always turn off gas/electricity and allow the heater to cool completely before opening.
Why does my pool heater keep losing ignition or failing to fire?
A pool heater that starts but fails to stay lit, or won't fire at all, typically has a fault in the ignition control circuit. Common causes include: a failed transformer (Hayward IDXL2TRF1930 or Raypak 130A — the transformer powers the ignition and control board; when it fails, the board loses its 24V control voltage and the heater won't fire); a failed thermostat or high-limit sensor that signals a false over-temperature condition; a fouled or failed gas pressure switch; or a dirty or failed igniter/flame sensor. Most modern gas heaters display error codes on the control panel when they trip — look up the error code in your heater's manual to identify the specific fault. Transformer failures are common after electrical storms. If the transformer tests correctly and error codes point to a pressure issue, check that the gas supply pressure and flow to the heater is within the manufacturer's specification.
What is a pool heater blower and why would it need replacement?
A pool heater blower (also called an inducer fan) is found on induced-draft and power-vent gas heaters (like the Raypak D-2 and Zodiac Jandy LXi). It draws combustion air through the heat exchanger and vents exhaust gases out through the heater's vent pipe — enabling the heater to be installed indoors or with long vent runs. Blowers fail for several reasons: motor bearing wear (causes grinding or squealing before failure), capacitor failure (motor hums but won't spin), or the pressure switch fails to detect the blower running. Signs of blower failure include the heater attempting to fire but failing ignition with a pressure switch fault code, or a grinding or rattling noise from the heater cabinet before it shuts down. The blower replacement (Zodiac Jandy LXi blower with gasket, Raypak D-2 power vent) restores the draft function — the integrated gasket ensures a proper seal against exhaust gas leakage. Blower replacement requires turning off gas and electricity and is typically within the capability of an experienced DIYer.
How do I find the correct replacement part for my pool heater?
Start with your heater's model number and serial number — both are on the rating label on the heater cabinet (typically on the side or back panel behind a small access door). The model number identifies the heater family (e.g., Hayward H400FDN, Pentair MasterTemp 400, Raypak R-407A) and the serial number identifies the production date, which determines which service part revision applies. For O-rings and gaskets, also note whether the heater uses a low-NOx combustion chamber or an induced-draft configuration — these use different header designs with different seal specifications. Hayward's HAXFOR1930 kit works on H-Series standard and low-NOx models; the header O-ring is specific to the H-Series induced-draft/low-NOx variant. If your exact model is not clear from the part names in this collection, contact our team — we can cross-reference your model and symptom to the correct part.