Get free shipping on your order, with any water filter subscription. Find my filter

Open Hamburger Menu
Sears Parts Direct
Please enter one or more characters
Scan Icon
Tips to find your model number
Water filters
Water filter finder tool
DIY help
Featured products
Top brands
View all parts by brand
Top products and services
Products by brand
Orders
Customer Service
Schedule a repair

GMC GUN125-4B gas furnace Parts

Here are the diagrams and repair parts for GMC GUN125-4B gas furnace, as well as links to manuals and error code tables, if available.

GMC GUN125-4B gas furnace
By Schematic
SELECT DIAGRAM
?

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

Browse Parts for GUN125-4B Gas Furnace

  • Gas Valve for GMC GUN125-4B - Part 12826-06S

    Gas train diagram

    Gas Valve

    Part #12826-06S

    The manufacturer no longer makes this part, and there's no substitute part

  • Furnace Inducer Vent Motor Assembly for GMC GUN125-4B - Part B1859001S

    Misc. electrical/hardware diagram

    Furnace Inducer Vent Motor Assembly

    Part #B1859001S
    In Stock
    $1598.95
    Minus Item
    Qty
    Plus Item
  • Heat Exchange for GMC GUN125-4B - Part 18212-30S

    Heat exchanger assembly diagram

    Heat Exchange

    Part #18212-30S

    The manufacturer no longer makes this part, and there's no substitute part

  • Exact Furn I for GMC GUN125-4B - Part IG412

    Gas train diagram

    Hot Surface

    Part #B14010-09

    Replaced by #IG412

    Info Icon
    Manufacturer substitution
    This part replaces B14010-09. Substitute parts can look different from the original.
    In Stock
    $29.09
    Minus Item
    Qty
    Plus Item
  • Transformer for GMC GUN125-4B - Part B11416-00

    Misc. electrical/hardware diagram

    Transformer

    Part #B11416-00

    The manufacturer no longer makes this part, and there's no substitute part

  • Furnace Temperature Limit Switch for GMC GUN125-4B - Part 1370906S

    Heat exchanger assembly diagram

    Limit, 150f,

    Part #B13700-06

    Replaced by #1370906S

    Info Icon
    Manufacturer substitution
    This part replaces B13700-06. Substitute parts can look different from the original.
    In Stock
    $108.62
    Minus Item
    Qty
    Plus Item
  • Furnace Blower Fan Wheel for GMC GUN125-4B - Part D6723306S

    Blower assembly diagram

    Blower Wheel

    Part #B13680-47

    Replaced by #D6723306S

    Info Icon
    Manufacturer substitution
    This part replaces B13680-47. Substitute parts can look different from the original.
    In Stock
    $150.10
    7% OFF Phone Price : $162.10Info Icon
    Minus Item
    Qty
    Plus Item
  • Heat Exchange for GMC GUN125-4B - Part 0257F00067

    Heat exchanger assembly diagram

    Heat Exchange

    Part #18212-31S

    Replaced by #0257F00067

    Info Icon
    Manufacturer substitution
    This part replaces 18212-31S. Substitute parts can look different from the original.
    In Stock
    $836.76
    Minus Item
    Qty
    Plus Item
  • Central Air Conditioner Air Handler Blower Wheel for GMC GUN125-4B - Part B1368016S

    Blower assembly diagram

    Blower Wheel

    Part #B13680-16

    Replaced by #B1368016S

    Info Icon
    Manufacturer substitution
    This part replaces B13680-16. Substitute parts can look different from the original.
    In Stock
    $235.99
    Minus Item
    Qty
    Plus Item
  • Furnace Blower Fan Motor Housing for GMC GUN125-4B - Part 0271A00016S

    Blower assembly diagram

    Blower Shell

    Part #18393-00

    Replaced by #0271A00016S

    Info Icon
    Manufacturer substitution
    This part replaces 18393-00. Substitute parts can look different from the original.
    In Stock
    $136.57
    8% OFF Phone Price : $148.57Info Icon
    Minus Item
    Qty
    Plus Item

Symptoms for gas snowblowers

Choose a symptom to see related snowblower repairs.

View all

Why won't my snowblower start?

Main causes: stale gas, clogged carburetor, clogged or broken fuel line, dirty spark plug, bad rewind starter, incorrect…

Read more

What should I do about a damaged snowblower tire?

Main causes: punctured tire, damaged rim…

Read more

Why won't my snowblower chute turn?

Main causes: snow build-up in chute, chute drive mechanism failure, bad chute control assembly…

Read more

Why won't my snowblower throw snow far enough?

Main causes: clogged chute, damaged auger blades, broken shear pins, worn auger belt, damaged gear case, engine problems…

Read more

How do I tune up my snowblower?

Things to do: replace the spark plug, change the oil, rebuild the carburetor, adjust valve lash, adjust or replace the b…

Read more

Why does my snowblower stop running after a few seconds?

Main causes: dirty carburetor, stale fuel…

Read more

Why won't my snowblower clear snow well?

Main causes: clogged chute, snow build-up in auger housing, broken auger shear pins, auger drive belt needs adjustment, …

Read more

Why doesn't my snowblower auger turn?

Main causes: broken shear pins, worn or loose auger drive belt, auger drive cable failure, damaged auger, bad gear case…

Read more

Why doesn't my snowblower self propel?

Main causes: loose drive clutch cable, damaged drive clutch cable, worn friction disc, scraper blade scraping the ground…

Read more

Repair guides for gas snowblowers

These step-by-step repair guides will help you safely fix what’s broken on your snowblower.

View all
How to adjust snowblower skid shoes

How to adjust snowblower skid shoes

To prevent snowblower auger and shave plate damage, adjust the skid shoes regularly to keep the shave plate ¼-inch high.…

Read more

Repair time and Difficulty

 15 minutes or less
How to rebuild a snowblower carburetor

How to rebuild a snowblower carburetor

Rebuild the carburetor on your snowblower if the engine isn't getting fuel.…

Read more

Repair time and Difficulty

 45 minutes or less
How to replace a snowblower 4-way chute control assembly

How to replace a snowblower 4-way chute control assembly

Replace the 4-way chute control assembly on your snowblower if it’s damaged.…

Read more

Repair time and Difficulty

 30 minutes or less

Effective articles & videos to help repair your furnaces

Use the advice and tips in these articles and videos to get the most out of your snowblower.

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
2023 HVAC regulation changes and how they may affect you

2023 HVAC regulation changes and how they may affect you

Find out how new DOE standards going into effect in 2023 can affect you and what you need to do.…

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

Parts
Blower Wheel 134-2513-01Handle 749-04693A-0637Home Electronics Coil 146005311Air Grid 00604148Home Electronics Flywheel YASFX013005Camshaft 209-32201-11Cabinet X25141021Label (trade 224-91635-03Lead Connector BN39-00441BC-film,mpp 2301-001251Link-mechan 797233Shrtblk St UP00739Home Electronics Knob 23874870Bkt,backing, 191337Home Electronics Shield 126-02715-01Home Electronics Holder YEFK04129Home Electronics Capacitor 022-07433HANDLE LATC 73-837Passive Woof TCG35228607PANEL- W/CON 52420100