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Lennox GCS20H-311-50-2P Replacement Parts

All Lennox GC models

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19 parts available

Verified Fit
Ignitor 000-826 replacement part for Lennox furnaces

Ignitor Electrode

Part #: 000-826
In Stock
CA$32.90
Verified Fit
Flame Sensor Rod 000-775 replacement part for Lennox furnaces

Flame Sensor

Part #: 000-775
In Stock
CA$68.62
Verified Fit
Flame Sensor Rod 001-178 replacement part for Lennox furnaces

LENNOX IGNITOR AND FLAME SENSOR

Part #: 001-178
In Stock
CA$53.94
Verified Fit
Air Pressure Switch 773-192 replacement part for Lennox furnaces

LENNOX ARMSTRONG PRESSURE SWITCH -0.10" WC

Part #: 773-192
In Stock
CA$108.58
Verified Fit
Blower Motors & Capacitors 668-037 replacement part for Lennox furnaces

LENNOX BLOWER WHEEL 9 X 8 X 1/2

Part #: 668-037
In Stock
CA$269.80
Verified Fit
Blower Motors & Capacitors 668-505 replacement part for Lennox furnaces

RUN CAPACITOR 7MFD 370/440V

Part #: 668-505
In Stock
CA$39.62
Verified Fit
Blower Motors & Capacitors 668-542 replacement part for Lennox furnaces

RUN CAPACITOR 35MFD 370/440V

Part #: 668-542
In Stock
CA$52.25
Verified Fit
Blower Motors & Capacitors 668-906 replacement part for Lennox furnaces

AC CONDENSER MOTOR 208-230V DIRECT REPLACEMENT ALL 1/12HP - 1/3 HP, 208-230V

Part #: 668-906
In Stock
CA$570.31
Verified Fit
Control Board 000-452 replacement part for Lennox furnaces

LENNOX CONTROL BOARD, TIME DELAY, 24V

Part #: 000-452
In Stock
CA$168.37
Verified Fit
Control Board 446-073 replacement part for Lennox furnaces

CONTROL IGNITION

Part #: 446-073
In Stock
CA$384.00
Verified Fit
Control Board 446-150 replacement part for Lennox furnaces

UPDATED LENNOX FAN TIMER KIT

Part #: 446-150
In Stock
CA$197.13
Verified Fit
Gas Control 427-077 replacement part for Lennox furnaces

1/2" X 1/2" SINGLE STAGE (STANDARD / FAST OPENING) GAS VALVE HSI/DSI UPGRADE

Part #: 427-077
In Stock
CA$398.76
Verified Fit
electrical-transformers-relay 000-007 replacement part for Lennox furnaces

LENNOX RELAY, DPDT, 24 VOLT, 13 AMP

Part #: 000-007
In Stock
CA$67.27
Verified Fit
electrical-transformers-relay 000-424 replacement part for Lennox furnaces

LENNOX RELAY, 24 VOLT COIL, 3PDT

Part #: 000-424
In Stock
CA$88.66
Verified Fit
electrical-transformers-relay 001-103 replacement part for Lennox furnaces

LENNOX RELAY, 24 VOLT COIL, 10 AMP, DPDT

Part #: 001-103
In Stock
CA$110.97
Verified Fit
electrical-transformers-relay 001-181 replacement part for Lennox furnaces

LENNOX RELAY, DPDT, 24VOLTS

Part #: 001-181
In Stock
CA$119.39
Verified Fit
electrical-transformers-relay 872-019 replacement part for Lennox furnaces

TRANSFORMER 208/240 VOLTS PRIMARY 24 VOLTS SECONDARY 50 VA

Part #: 872-019
In Stock
CA$198.31
Verified Fit
electrical-transformers-relay 872-029 replacement part for Lennox furnaces

RELAY DELTROL CONTROLS DPDT COIL 24VAC 120VAC

Part #: 872-029
In Stock
CA$236.90
Verified Fit
electrical-transformers-relay 872-511 replacement part for Lennox furnaces

CONTACTOR 1-POLE 24VAC COIL 30AMP

Part #: 872-511
In Stock
CA$52.75

Not seeing the part you need?

Our team is happy to help you find the right part for your Lennox GCS20H-311-50-2P.

1-778-759-9864

Related Lennox Models

Other Lennox models in the same series — tap to view their replacement parts.

OEM Replacement Part Numbers

The Lennox GCS20H-311-50-2P uses 19 OEM part numbers. Click any highlighted number to view its replacement.

000-007000-424000-452000-775000-826001-103001-178001-181427-077446-073446-150668-037668-505668-542668-906773-192872-019872-029872-511

Need Help Finding the Right Part?

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