GMC
Air Handler

Model #A42-20 Official GMC air handler with coil

Here are the diagrams and repair parts for GMC A42-20 air handler with coil, as well as links to manuals and error code tables, if available.

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Showing 10 of 40 parts

Furnace Heating Element Assembly (replaces B1037488, B10374-88)#7A

Air handler Diagram

Heating elem

Part #B10374-68
Replaced by #B1037488S
?
Manufacturer substitution
This part replaces B10374-68. Substitute parts can look different from the original.
In Stock
$136.97 | 
10% OFF 
Was: $152.19
Furnace Blower Fan Wheel#16

Air handler Diagram

Blower wheel

Part #B13680-36
Replaced by #B1368036S
?
Manufacturer substitution
This part replaces B13680-36. Substitute parts can look different from the original.
In Stock
$99.84
Motor Run Capacitor#18

Air handler Diagram

Capacitor 7.

Part #B9456-51
Replaced by #12907
?
Manufacturer substitution
This part replaces B9456-51. Substitute parts can look different from the original.
This item is not returnable
In Stock
$3.19 | 
24% OFF 
Phone Price: $4.19
Central Air Conditioner Circuit Breaker (replaces B1753522, CBK2PD240VA0605)#8A

Air handler Diagram

Circuit breaker

Part #B17535-11
Replaced by #CBK2PD240VA060S
?
Manufacturer substitution
This part replaces B17535-11. Substitute parts can look different from the original.
In Stock
$51.99
Furnace Temperature Limit Switch#10

Air handler Diagram

In Stock
$11.94
Flowrator W/#20A

Air handler Diagram

Flowrator w/

Part #B13136-80
In Stock
$10.99
Terminal Blo#13B

Air handler Diagram

Terminal blo

Part #B13682-50
This item is not returnable
In Stock
$5.49
Upper Tie Pl#4

Air handler Diagram

Upper tie pl

Part #17219-08
In Stock
$8.99
A/h Wrapper,#2

Air handler Diagram

A/h wrapper,

Part #17211-16
In Stock
$47.99
Central Air Conditioner Air Handler Blower Motor (replaces B13400-352, B13400353)#15

Air handler Diagram

In Stock
$323.69 | 
$10.00 OFF 
Phone Price: $333.69

Articles and videos common to all air handlers

August 5, 2022

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Lyle Weischwill

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.