Close
Phone 1-855-343-0069
Cart
Official OEM Guarantee
Fast shipping from USA
365 Day Returns
Preferred Brand Partners
Lawn Boy Parts

Lawn Boy Lawnmower Lawn Mower Replacement Parts For Model 5239B (300000001-399999999 - 1973)

We Sell Only Genuine Lawn Boy Parts

Popular Parts for 5239B

Locknut – Part Number: 603773 Locknut
In Stock
$6.16
Valve / Seat-float – Part Number: 92-9697 Valve / Seat-float
In Stock
$38.83
Spacer – Part Number: 605256 Spacer
In Stock
Minimum Quantity of 2 required
$6.16
Nut-clip – Part Number: 94-1610 Nut-clip
In Stock
$6.16
Plate-opening, Chute – Part Number: 95-7052 Plate-opening, Chute
In Stock
$43.26
Screw-hwh – Part Number: 46-6811 Screw-hwh
In Stock
$6.16
Plate And Collar Asm – Part Number: 677525 Plate And Collar Asm
In Stock
$69.59
Bolt Wheel – Part Number: 603441 Bolt Wheel
Special Order
$12.02

Search Within Model

Questions & Answers for Lawn Boy 5239B
Browse all Parts Search by Area
Page Diagram and Parts List for 300000001-399999999 - 1973 Lawn Boy Lawn Mower
Page
Page Diagram and Parts List for 300000001-399999999 - 1973 Lawn Boy Lawn Mower
Page
Page Diagram and Parts List for 300000001-399999999 - 1973 Lawn Boy Lawn Mower
Page
Page Diagram and Parts List for 300000001-399999999 - 1973 Lawn Boy Lawn Mower
Page
Previous
Showing All Parts
Next
Page
Page Diagram and Parts List for 300000001-399999999 - 1973 Lawn Boy Lawn Mower
Page
Page Diagram and Parts List for 300000001-399999999 - 1973 Lawn Boy Lawn Mower
  • Nut – Part Number: 130743
    Nut
    Part Number: 130743
      Special Order
    $6.16
  • Lockwasher – Part Number: 304161
    Lockwasher
    Part Number: 304161
      No Longer Available
  • Screw F – Part Number: 606537
    Screw F
    Part Number: 606537
      No Longer Available
  • Screen & Cup – Part Number: 608280
    Screen & Cup
    Part Number: 608280
      No Longer Available
  • Flywheel S – Part Number: 679898
    Flywheel S
    Part Number: 679898
      Special Order
    $455.08
  • Yoke S – Part Number: 602635
    Yoke S
    Part Number: 602635
      No Longer Available
  • Collar S – Part Number: 602634
    Collar S
    Part Number: 602634
      Special Order
    $38.83
  • Weight S – Part Number: 602636
    Weight S
    Part Number: 602636
      No Longer Available
  • Spring S – Part Number: 604269
    Spring S
    Part Number: 604269
      Special Order
    $14.57
  • Washer S – Part Number: 604413
    Washer S
    Part Number: 604413
      No Longer Available
  • Thrust Collar S – Part Number: 604265
    Thrust Collar S
    Part Number: 604265
      Special Order
    $21.34
  • Lever-Governor S – Part Number: 604266
    Lever-Governor S
    Part Number: 604266
      Special Order
    $15.52
  • Screw S – Part Number: 604344
    Screw S
    Part Number: 604344
      No Longer Available
  • Dust Cover S – Part Number: 604264
    Dust Cover S
    Part Number: 604264
      No Longer Available
  • Spark Adv. S – Part Number: 604276
    Spark Adv. S
    Part Number: 604276
      No Longer Available
  • Spark Adv. Spring S – Part Number: 604267
    Spark Adv. Spring S
    Part Number: 604267
      Special Order
    $6.80
  • Flyweight S – Part Number: 604263
    Flyweight S
    Part Number: 604263
      No Longer Available
  • Spark Adj. S – Part Number: 604314
    Spark Adj. S
    Part Number: 604314
      Special Order
    $6.20
  • Pin,Spark Adv. S – Part Number: 604277
    Pin,Spark Adv. S
    Part Number: 604277
      No Longer Available
  • Screw – Part Number: 604742
    Screw
    Part Number: 604742
      No Longer Available
  • Key – Part Number: 607199
    Key
    Part Number: 607199
      In Stock
    $6.16
  • Crankshaft – Part Number: 604315
    Crankshaft
    Part Number: 604315
      No Longer Available
  • Connect. Rod Ay. – Part Number: 679156
    Connect. Rod Ay.
    Part Number: 679156
      No Longer Available
  • Lockplate – Part Number: 307558
    Lockplate
    Part Number: 307558
      No Longer Available
  • Screw – Part Number: 603976
    Screw
    Part Number: 603976
      No Longer Available
  • Liner Asm – Part Number: 677982
    Liner Asm
    Part Number: 677982
      Special Order
    $68.84
  • Ring-Retaining – Part Number: 303712
    Ring-Retaining
    Part Number: 303712
      Special Order
    $6.16
  • Pin-Wrist – Part Number: 94-5774
    Pin-Wrist
    Part Number: 94-5774
      Special Order
    $19.39
  • Piston S – Part Number: 606607
    Piston S
    Part Number: 606607
      No Longer Available
  • Piston Ring Set S – Part Number: 679252
    Piston Ring Set S
    Part Number: 679252
      No Longer Available
  • Gaskets – Part Number: 602763
    Gaskets
    Part Number: 602763
      No Longer Available
  • Gasket S – Part Number: 602590
    Gasket S
    Part Number: 602590
      No Longer Available
  • Screw S – Part Number: 602657
    Screw S
    Part Number: 602657
      No Longer Available
  • Cyl. & Sleeve Assembly. – Part Number: 678133
    Cyl. & Sleeve Assembly.
    Part Number: 678133
      No Longer Available
  • Gasket S – Part Number: 604116
    Gasket S
    Part Number: 604116
      Special Order
    Minimum Quantity of 2 required
    $6.16
  • Cankcase – Part Number: 679687
    Cankcase
    Part Number: 679687
      No Longer Available
  • Gasket S – Part Number: 608362
    Gasket S
    Part Number: 608362
      Special Order
    $6.96
  • Reed Plate Ay. S – Part Number: 679711
    Reed Plate Ay. S
    Part Number: 679711
      No Longer Available
  • Plate-Backup, Reed – Part Number: 602587
    Plate-Backup, Reed
    Part Number: 602587
      Special Order
    $6.16
  • Reed-Carburetor – Part Number: 602588
    Reed-Carburetor
    Part Number: 602588
      No Longer Available
  • Screw S – Part Number: 604857
    Screw S
    Part Number: 604857
      Special Order
    $11.46
  • Gasket S – Part Number: 602052
    Gasket S
    Part Number: 602052
      Special Order
    $6.20
  • Carb. Assembly. – Part Number: 678375
    Carb. Assembly.
    Part Number: 678375
      No Longer Available
  • Air Filter Ay S – Part Number: 679425
    Air Filter Ay S
    Part Number: 679425
      No Longer Available
  • Chamber Ay S – Part Number: 606894
    Chamber Ay S
    Part Number: 606894
      No Longer Available
  • Air Fil.elem S – Part Number: 604274
    Air Fil.elem S
    Part Number: 604274
      In Stock
    $13.18
  • Screw S – Part Number: 602775
    Screw S
    Part Number: 602775
      No Longer Available
  • Washer S – Part Number: 606892
    Washer S
    Part Number: 606892
      No Longer Available
  • Filter Chamber S – Part Number: 606893
    Filter Chamber S
    Part Number: 606893
      No Longer Available
  • Gasket S – Part Number: 605425
    Gasket S
    Part Number: 605425
      Special Order
    $6.59
  • Screw S – Part Number: 602192
    Screw S
    Part Number: 602192
      No Longer Available
  • Screw S – Part Number: 602848
    Screw S
    Part Number: 602848
      No Longer Available
  • Nut – Part Number: 605111
    Nut
    Part Number: 605111
      No Longer Available
  • Air Baffle – Part Number: 679577
    Air Baffle
    Part Number: 679577
      No Longer Available
  • Nut-clip – Part Number: 605120
    Nut-clip
    Part Number: 605120
      In Stock
    $6.80
  • Spring – Part Number: 604291
    Spring
    Part Number: 604291
      No Longer Available
  • Blade S – Part Number: 604249
    Blade S
    Part Number: 604249
      No Longer Available
  • Spring S – Part Number: 604248
    Spring S
    Part Number: 604248
      Special Order
    $8.72
  • Gasket – Part Number: 607741
    Gasket
    Part Number: 607741
      No Longer Available
  • Primer Bar S – Part Number: 606865
    Primer Bar S
    Part Number: 606865
      No Longer Available
  • Rod S – Part Number: 604297
    Rod S
    Part Number: 604297
      Special Order
    $35.20
  • Speed Control – Part Number: 679060
    Speed Control
    Part Number: 679060
      Special Order
    $155.97
  • Screw S – Part Number: 604857
    Screw S
    Part Number: 604857
      Special Order
    $11.46
  • Bracket – Part Number: 605102
    Bracket
    Part Number: 605102
      No Longer Available
  • Spring – Part Number: 605252
    Spring
    Part Number: 605252
      No Longer Available
  • Gas Line – Part Number: 605126
    Gas Line
    Part Number: 605126
      Special Order
    $14.17
  • Fuel Tank – Part Number: 678786
    Fuel Tank
    Part Number: 678786
      No Longer Available
  • Valve & Screen Sm – Part Number: 677052
    Valve & Screen Sm
    Part Number: 677052
      Special Order
    $38.83
  • Clamp - Hose S – Part Number: 312387
    Clamp - Hose S
    Part Number: 312387
      No Longer Available
  • Screw – Part Number: 604881
    Screw
    Part Number: 604881
      No Longer Available
  • Gasket – Part Number: 604851
    Gasket
    Part Number: 604851
      No Longer Available
  • Engine Cover – Part Number: 679985
    Engine Cover
    Part Number: 679985
      No Longer Available
  • Decal Instructions – Part Number: 608403
    Decal Instructions
    Part Number: 608403
      No Longer Available
  • Decal-On-Off; Prime – Part Number: 608402
    Decal-On-Off; Prime
    Part Number: 608402
      No Longer Available
  • Decal – Part Number: 608400
    Decal
    Part Number: 608400
      No Longer Available
  • Decal - Deluxe – Part Number: 608401
    Decal - Deluxe
    Part Number: 608401
      No Longer Available
  • Cap – Part Number: 679287
    Cap
    Part Number: 679287
      No Longer Available
  • Screw F – Part Number: 606537
    Screw F
    Part Number: 606537
      No Longer Available
  • Screw S – Part Number: 605119
    Screw S
    Part Number: 605119
      Special Order
    $8.52
  • Gov. Ay S – Part Number: 678149
    Gov. Ay S
    Part Number: 678149
      No Longer Available
  • Flywheel & Screen Assembly. – Part Number: 679900
    Flywheel & Screen Assembly.
    Part Number: 679900
      No Longer Available
  • Piston & Com. Rod Assembly. – Part Number: 679155
    Piston & Com. Rod Assembly.
    Part Number: 679155
      No Longer Available
Page
Page Diagram and Parts List for 300000001-399999999 - 1973 Lawn Boy Lawn Mower
Page
Page Diagram and Parts List for 300000001-399999999 - 1973 Lawn Boy Lawn Mower

Questions & Answers

?

Our customer Service team is at the ready daily to answer your part and product questions.

Be the first to ask our experts a question about this part!

Ask our Team

We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.

✖

Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.