Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Tips to find your model number
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
ICP
Furnace

Model # GNK125N20A2 Official ICP gas furnace

Here are the diagrams and repair parts for Official ICP GNK125N20A2 gas furnace, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 91 parts  |
Furnace Pilot Igniter And Sensor (replaces B14010-11s, Q3400a1040) 1009524
#23

Unit parts diagram

Furnace pilot igniter and sensor (replaces b14010-11s, q3400a1040)

Part #1009524

$166.19 | 
7% OFF Phone Price : $178.19
In Stock
Cont Fan Tmr 1009838
#7

Unit parts diagram

Cont fan tmr

Part #1009838

Replaced by #1170063

?
Manufacturer substitution
This part replaces 1009838. Substitute parts can look different from the original.
$220.46 | 
5% OFF Phone Price : $232.46
In Stock
Cap Rnrd 1094956
#6

Unit parts diagram

Cap rnrd

Part #1094956

Replaced by #12908

?
Manufacturer substitution
This part replaces 1094956. Substitute parts can look different from the original.
This item is not returnable
$5.26 | 
16% OFF Phone Price : $6.26
In Stock
Limit Switch 1000735
#29

Unit parts diagram

Limit switch

Part #1000735

Replaced by #1013105

?
Manufacturer substitution
This part replaces 1000735. Substitute parts can look different from the original.
This item is not returnable
$15.14
In Stock
Clamp Capctr 1095020
#SS

Unit parts diagram

Clamp capctr

Part #1095020

$100.98
In Stock
Rail Galv Bl 57059
#J

Unit parts diagram

Rail galv bl

Part #57059

$952.55
In Stock
Bracket Coil 1008694
#G

Unit parts diagram

Bracket coil

Part #1008694

$132.82
In Stock
Bracket Coil 1008693
#H

Unit parts diagram

Bracket coil

Part #1008693

$144.10
In Stock
Gskt Burn Bx 1008761
#LL

Unit parts diagram

Gskt burn bx

Part #1008761

$25.29
In Stock
Gsket Air In 1008746
#JJ

Unit parts diagram

Gsket air in

Part #1008746

This item is not returnable
$2.16
In Stock

Effective articles & videos to help repair your furnaces

View all
How to get your furnace ready for winter

How to get your furnace ready for winter

Get expert tips for preparing your furnace for winter. Follow maintenance tips to keep your furnace in top shape.…

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

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

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

Read more
Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

Read more

Parts & More