Can't find your part?   Contact us:   +1-309-603-4777
Open Hamburger Menu
Sears Parts Direct
Tips to find your model number
Orders
Your models

Keep track of the models you own in your profile

Sign in or Register to view or add models

Schedule a repair
Gas Walk-Behind Mower

Model # P21400 Official Snapper lawn mower - series 0 & 1

Here are the diagrams and repair parts for Official Snapper P21400 lawn mower - series 0 & 1, as well as links to manuals and error code tables, if available.

By Schematic
By Part
SELECT DIAGRAM
?

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

Browse Parts forP21400 Walk-Behind Mowers

  • Hcln, 1/4c G 7090372
    Hcln, 1/4c g

    Part #7090372

    Replaced by #703251

    ?
    Manufacturer substitution
    This part replaces 7090372. Substitute parts can look different from the original.
    In Stock
  • Rhssnb, 1/4c 7091530
    #18

    Accessory-thatcherizer diagram

    Rhssnb, 1/4c

    Part #7091530

    Replaced by #703101

    ?
    Manufacturer substitution
    This part replaces 7091530. Substitute parts can look different from the original.
    This item is not returnable
    $7.41
    6% OFF Phone Price : $7.89
    In Stock
  • Fw, .34x.69x 7091076
    #16

    Side chute/adapter diagram

    Fw, .34x.69x

    Part #7091076

    Replaced by #703350

    ?
    Manufacturer substitution
    This part replaces 7091076. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
  • Pushnut 1/4 7091020
    Pushnut 1/4

    Part #7091020

    Replaced by #704005

    ?
    Manufacturer substitution
    This part replaces 7091020. Substitute parts can look different from the original.
    This item is not returnable
    $7.63
    8% OFF Phone Price : $8.29
    In Stock
  • Washer, 11/32 X 11/16 X 1/16-in 7090188
    Washer, 11/32 x 11/16 x 1/16-in

    Part #7090188

    Replaced by #703350

    ?
    Manufacturer substitution
    This part replaces 7090188. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
  • Hn, 5/16c Gr 7091511
    Hn, 5/16c gr

    Part #7091511

    Replaced by #7091511SM

    ?
    Manufacturer substitution
    This part replaces 7091511. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
  • Rhsnb, 5/16c 7090316
    #35

    Drive system self-propelled diagram

    Rhsnb, 5/16c

    Part #7090316

    Replaced by #5025145X6SM

    ?
    Manufacturer substitution
    This part replaces 7090316. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
  • Key 7073406
    #5

    Electric start diagram

    Key

    Part #7073406

    Replaced by #1717163SM

    ?
    Manufacturer substitution
    This part replaces 7073406. Substitute parts can look different from the original.
    This item is not returnable
    $14.30
    7% OFF Phone Price : $15.31
    In Stock
  • Hflb, 5/16c 7090595
    Hflb, 5/16c

    Part #7090595

    Replaced by #703354

    ?
    Manufacturer substitution
    This part replaces 7090595. Substitute parts can look different from the original.
    This item is not returnable
    $9.31
    6% OFF Phone Price : $9.89
    In Stock
  • Slw, .318x.5 7090187
    Slw, .318x.5

    Part #7090187

    Replaced by #5025170SM

    ?
    Manufacturer substitution
    This part replaces 7090187. Substitute parts can look different from the original.
    This item is not returnable
    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: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

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: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

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.

How to replace a lawn mower spark plug

How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower drive cable

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…

Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower starter rope

How to replace a lawn mower starter rope

These step-by-step instructions show how to replace a broken starter pull rope on a walk-behind lawn mower.…

Repair difficulty
Time required
 30 minutes or less

Effective articles & videos to help repair your walk-behind mowers

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

The best time of day to mow grass (and when you should absolutely not)

The best time of day to mow grass (and when you should absolutely not)

Wondering when to mow your lawn for the best results? Timing matters more than you might think. Discover the best time o…

Top 10 electric lawn and garden tools

Top 10 electric lawn and garden tools

Learn about the top 10 must-have electric lawn & garden tools for 2023…

How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

Parts & More

Bottom-Mount Refrigerator
Dishwasher
Dryer
Electric Range
Electric Water Heater
Exercise Cycle
Front-Engine Lawn Tractor
Gas Chainsaw
Gas Range
Parts
Refrigerator
Side-By-Side Refrigerator
Small Appliance
Television
Washer