Lochinvar & A.O. Smith

Lochinvar & A.O. Smith deliver industry-leading water heating solutions including tankless units, hybrid heat pumps, and commercial storage systems. These trusted brands combine over 80 years of innovation to provide reliable, energy-efficient water heaters for residential and commercial applications. Shop Jackson Systems for competitive prices and expert support on your next water heater installation.

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Spark Electrode Harness Kit, OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100277809
$40.20
MSRP: $46.23
You save 15%
Lochinvar & A.O. Smith 100277809 Spark Electrode Harness Kit quantity
Gas/Air Manifold Gasket, OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100277802
$1,159.56
MSRP: $1,333.49
You save 15%
Lochinvar & A.O. Smith 100277802 Gas/Air Manifold Gasket quantity
LWCO Boot Replacement Component

Lochinvar & A.O. Smith

SKU: 100277801
$21.63
MSRP: $24.87
You save 15%
Lochinvar & A.O. Smith 100277801 LWCO Boot quantity
Low Water Cut Off, Probe — OEM Boiler Safety Component

Lochinvar & A.O. Smith

SKU: 100277799
$110.26
MSRP: $126.80
You save 15%
Lochinvar & A.O. Smith 100277799 Low Water Cut Off, Probe quantity
Switch Off Momentary Red Replacement Part

Lochinvar & A.O. Smith

SKU: 100277797
$34.46
MSRP: $39.63
You save 15%
Lochinvar & A.O. Smith 100277797 Switch Off Momentary Red quantity
OEM Blower Gasket, SKU 100277796

Lochinvar & A.O. Smith

SKU: 100277796
$52.84
MSRP: $60.77
You save 15%
Lochinvar & A.O. Smith 100277796 Blower Gasket quantity
Gasket Set — OEM Replacement Sealing Kit

Lochinvar & A.O. Smith

SKU: 100277795
$1,011.73
MSRP: $1,163.49
You save 15%
Lochinvar & A.O. Smith 100277795 Gasket Set quantity
Burner Gasket 2 Assembly – OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100277793
$304.81
MSRP: $350.53
You save 15%
Lochinvar & A.O. Smith 100277793 Burner Gasket 2 Assembly quantity
115V Pump with Hardware for Lochinvar & A.O. Smith Systems

Lochinvar & A.O. Smith

SKU: 100277785
$2,520.35
MSRP: $2,898.40
You save 15%
Lochinvar & A.O. Smith 100277785 115V Pump with Hardware quantity
Interface Board for Lochinvar & A.O. Smith Equipment

Lochinvar & A.O. Smith

SKU: 100277771
$408.53
MSRP: $469.81
You save 15%
Lochinvar & A.O. Smith 100277771 Interface Board quantity
K Control for FB1501-2001 Boiler/Water Heater Units

Lochinvar & A.O. Smith

SKU: 100277770
$1,208.08
MSRP: $1,389.29
You save 15%
Lochinvar & A.O. Smith 100277770 K Control FB1501-2001 quantity
Resettable Thermal Switch for Water Heaters & Boilers

Lochinvar & A.O. Smith

SKU: 100277765
$82.70
MSRP: $95.11
You save 15%
Lochinvar & A.O. Smith 100277765 Resettable Thermal Switch quantity
Pump Less Volute Replacement Part – SKU 100277764

Lochinvar & A.O. Smith

SKU: 100277764
$863.91
MSRP: $993.50
You save 15%
Lochinvar & A.O. Smith 100277764 Pump Less Volute quantity
OEM Replacement Impeller for Lochinvar & A.O. Smith

Lochinvar & A.O. Smith

SKU: 100277758
$698.53
MSRP: $803.31
You save 15%
Lochinvar & A.O. Smith 100277758 Impeller quantity
Low Water Cut-Off Probe, SKU 100277756

Lochinvar & A.O. Smith

SKU: 100277756
$75.81
MSRP: $87.18
You save 15%
Lochinvar & A.O. Smith 100277756 LWCO Probe quantity
Pressure Switch 0.95″ w.c. Replacement Part

Lochinvar & A.O. Smith

SKU: 100277755
$45.94
MSRP: $52.83
You save 15%
Lochinvar & A.O. Smith 100277755 Pressure Switch 0.95" w.c. quantity
ESC Control Board with Mod-Bus Communication

Lochinvar & A.O. Smith

SKU: 100277753
$781.45
MSRP: $898.67
You save 15%
Lochinvar & A.O. Smith 100277753 ESC Control Board with Mod-Bus quantity
Bearing Assembly, OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100277747
$1,109.98
MSRP: $1,276.48
You save 15%
Lochinvar & A.O. Smith 100277747 Bearing Assembly quantity
Replacement Gasket for Lochinvar & A.O. Smith Units

Lochinvar & A.O. Smith

SKU: 100277743
$11.45
MSRP: $13.17
You save 15%
Lochinvar & A.O. Smith 100277743 Replacement Gasket quantity
Gasket Set for Lochinvar & A.O. Smith Equipment

Lochinvar & A.O. Smith

SKU: 100277741
$188.66
MSRP: $216.96
You save 15%
Lochinvar & A.O. Smith 100277741 Gasket Set quantity
OEM Condensate Trap for Lochinvar & A.O. Smith Equipment

Lochinvar & A.O. Smith

SKU: 100277718
$356.68
MSRP: $410.18
You save 15%
Lochinvar & A.O. Smith 100277718 Condensate Trap quantity
Integrated Control for Lochinvar & A.O. Smith Equipment

Lochinvar & A.O. Smith

SKU: 100277717
$1,147.94
MSRP: $1,320.13
You save 15%
Lochinvar & A.O. Smith 100277717 Integrated Control quantity
OEM Gasket Set for Lochinvar & A.O. Smith Equipment

Lochinvar & A.O. Smith

SKU: 100277716
$968.39
MSRP: $1,113.65
You save 15%
Lochinvar & A.O. Smith 100277716 Gasket Set quantity
Gasket Kit for Lochinvar & A.O. Smith Equipment

Lochinvar & A.O. Smith

SKU: 100277715
$805.06
MSRP: $925.82
You save 15%
Lochinvar & A.O. Smith 100277715 Gasket Kit quantity
Flame Rod Replacement Part – SKU 100277290

Lochinvar & A.O. Smith

SKU: 100277290
$144.73
MSRP: $166.44
You save 15%
Lochinvar & A.O. Smith 100277290 Flame Rod Replacement Part quantity
OEM Replacement Ignitor, SKU 100277283

Lochinvar & A.O. Smith

SKU: 100277283
$175.69
MSRP: $202.04
You save 15%
Lochinvar & A.O. Smith 100277283 Ignitor quantity
120/240V-24V 50/60Hz 150VA Control Transformer

Lochinvar & A.O. Smith

SKU: 100276897
$648.14
MSRP: $745.36
You save 15%
Lochinvar & A.O. Smith 100276897 120/240V-24V 50/60Hz 150VA Transformer quantity
2 Burner Assembly Gasket – OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100276843
$425.46
MSRP: $489.28
You save 15%
Lochinvar & A.O. Smith 100276843 2 Burner Assembly Gasket quantity
Air Pressure Switch, OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100276842
$156.20
MSRP: $179.63
You save 15%
Lochinvar & A.O. Smith 100276842 Air Pressure Switch quantity
2-1/2″ 3-Way Bypass Valve for Hydronic Systems

Lochinvar & A.O. Smith

SKU: 100276831
$2,974.21
MSRP: $3,420.34
You save 15%
Lochinvar & A.O. Smith 100276831 2-1/2" 3-Way Bypass Valve quantity
1″ 150# Temperature & Pressure Relief Valve

Lochinvar & A.O. Smith

SKU: 100276814
$221.20
MSRP: $254.38
You save 15%
Lochinvar & A.O. Smith 100276814 1" 150# T&P Relief Valve quantity
Ribbon Cable Replacement Part – SKU 100276810

Lochinvar & A.O. Smith

SKU: 100276810
$73.03
MSRP: $83.98
You save 15%
Lochinvar & A.O. Smith 100276810 Ribbon Cable quantity
Display Interface User FB for Lochinvar & A.O. Smith Units

Lochinvar & A.O. Smith

SKU: 100276786
$440.28
MSRP: $506.32
You save 15%
Lochinvar & A.O. Smith 100276786 Display Interface User FB quantity
1/4HP 1800RPM 120V Replacement Pump Motor

Lochinvar & A.O. Smith

SKU: 100276785
$1,137.31
MSRP: $1,307.91
You save 15%
Lochinvar & A.O. Smith 100276785 1/4HP 1800RPM 120V Pump Motor quantity
Integrated Control Board for Lochinvar & A.O. Smith Units

Lochinvar & A.O. Smith

SKU: 100276784
$890.16
MSRP: $1,023.68
You save 15%
Lochinvar & A.O. Smith 100276784 Integrated Control Board quantity
K Control Integrated Shield Replacement Part

Lochinvar & A.O. Smith

SKU: 100276753
$690.19
MSRP: $793.72
You save 15%
Lochinvar & A.O. Smith 100276753 K Control Integrated Shield quantity
3/4″ 210°F 150# 3″ Extension Temperature & Pressure Relief Valve

Lochinvar & A.O. Smith

SKU: 100276752
$48.25
MSRP: $55.49
You save 15%
Lochinvar & A.O. Smith 100276752 3/4" 210°F 150# 3" Ext Relief Valve quantity
Hex Door Temperature Switch, OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100276374
$29.75
MSRP: $34.21
You save 15%
Lochinvar & A.O. Smith 100276374 Hex Door Temperature Switch quantity
LP Burner Assembly 16″ #53 TC – OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100276332
$147.76
MSRP: $169.92
You save 15%
Lochinvar & A.O. Smith 100276332 LP Burner Assembly 16" #53 TC quantity
K Gas Thermostat MFG-H Conversion

Lochinvar & A.O. Smith

SKU: 100276287
$303.76
MSRP: $349.32
You save 15%
Lochinvar & A.O. Smith 100276287 K Gas Thermostat MFG-H Conv quantity
Main Unit Wiring Harness for Lochinvar & A.O. Smith

Lochinvar & A.O. Smith

SKU: 100275616
$99.93
MSRP: $114.92
You save 15%
Lochinvar & A.O. Smith 100275616 Wiring Harness, Main Unit quantity
Pump Assembly with Gasket – OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100275607
$170.39
MSRP: $195.95
You save 15%
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3″ PVC Flue Adapter with Combustion Analyzer Port

Lochinvar & A.O. Smith

SKU: 100275600
$147.01
MSRP: $169.06
You save 15%
Lochinvar & A.O. Smith 100275600 3" PVC Flue Adapter with Analyzer Port quantity
OEM Condensate Trap for Lochinvar & A.O. Smith Units

Lochinvar & A.O. Smith

SKU: 100275597
$56.28
MSRP: $64.72
You save 15%
Lochinvar & A.O. Smith 100275597 Condensate Trap quantity
Pressure Switch for Lochinvar & A.O. Smith Equipment

Lochinvar & A.O. Smith

SKU: 100275596
$24.11
MSRP: $27.73
You save 15%
Lochinvar & A.O. Smith 100275596 Pressure Switch quantity
Diverter Motor, OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100275594
$73.51
MSRP: $84.54
You save 15%
Lochinvar & A.O. Smith 100275594 Diverter Motor quantity
Kit Return Group with Gaskets for Boiler Systems

Lochinvar & A.O. Smith

SKU: 100275592
$272.00
MSRP: $312.80
You save 15%
Lochinvar & A.O. Smith 100275592 Kit Return Group with Gaskets quantity
Inlet Water Tube for Combi Noble Series Units

Lochinvar & A.O. Smith

SKU: 100275588
$75.81
MSRP: $87.18
You save 15%
Lochinvar & A.O. Smith 100275588 Inlet Water Tube, Combi Noble quantity