Noma
Gas Walk-Behind Mower

Model #F2155-180 Noma scott lawn mower

Here are the repair parts and diagrams for your Noma F2155-180 scott lawn mower. 

The diagram(s) below can help you find the right part.  If you’d like help, we invite you to call our customer service number at the top of the page, or click chat.

On this page, you can also find any manuals, installation guides and error code tables associated with this model.

For advice on diagnosing problems with appliances, lawn & garden equipment and other products, check out the videos, repair guides and articles in our DIY section.

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Showing 10 of 143 parts

Single Blade

#170

Engine/frame/blade/cable Diagram

Single blade

Part #330270MA
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  330270
This part replaces 330270

$23.60

In Stock

Snowblower Nut

#200-10

Rear drive/rear axle/varispeed Diagram

Snowblower nut

Part #0015X2MA
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  120376
This part replaces 120376
This item is not returnable

$3.53

In Stock

Lawn & Garden Equipment Nut

#115

Engine/frame/blade/cable Diagram

Lawn & garden equipment nut

Part #45905MA
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  45905
This part replaces 45905
This item is not returnable

$2.79

In Stock

Snowblower Push Nut

#4

Discharge chute kit Diagram

Snowblower push nut

Part #73664MA
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  73664
This part replaces 73664
This item is not returnable

$3.53

In Stock

Lawn & Garden Equipment Screw

#174

Engine/frame/blade/cable Diagram

Lawn & garden equipment screw

Part #181643MA
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  181643
This part replaces 181643
This item is not returnable

$3.88

In Stock

Hub Blade Eo

#162

Engine/frame/blade/cable Diagram

Hub blade eo

Part #310430MA
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  310430
This part replaces 310430

$62.90

In Stock

Cable Tie

#489

Engine/frame/blade/cable Diagram

Cable tie

Part #57444MA
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  57444
This part replaces 57444
This item is not returnable

$2.66

In Stock

Edger Cotter Pin

#682

Wheel and tire/handles Diagram

Edger cotter pin

Part #36368MA
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  36368
This part replaces 36368
This item is not returnable

$2.67

In Stock

Lawn & Garden Equipment Lock Nut

#119

Engine/frame/blade/cable Diagram

Lawn & garden equipment lock nut

Part #41529MA
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  41529
This part replaces 41529
This item is not returnable

$2.85

In Stock

Screw, 5/16-in

#200-64

Rear drive/rear axle/varispeed Diagram

Screw, 5/16-in

Part #54980MA
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  54980
This part replaces 54980
This item is not returnable

$3.88

In Stock

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel
Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade
Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent
Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up
Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key
Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, bad ignition coil

Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

March 1, 2016
By Lyle Weischwill
How to replace a lawn mower drive cable

The drive cable engages the transmission to spin the drive wheels and move the mower across the grass. Replace the drive cable if it's broken or frozen up inside the sheath.

Repair difficulty
Time required
 60 minutes or less
April 1, 2013
By Lyle Weischwill
How to replace a lawn mower wheel

Learn how replace a damaged wheel on a walk-behind lawn mower—it's a quick, easy fix.

Repair difficulty
Time required
 15 minutes or less
April 1, 2013
By Lyle Weischwill
How to replace a lawn mower safety switch

The safety switch stops the engine when you release the lever on the handle. This repair guide explains how to replace it if it's not working correctly.

Repair difficulty
Time required
 30 minutes or less

Articles and videos common to all walk-behind mowers

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

October 1, 2019

Types of walk-behind mower blades video

By Sears PartsDirect staff

Learn about the different kinds of mower blades and how to maintain them.