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Lawn-Boy 10201-3900001 AND UP lawn mower Parts
Here are the diagrams and repair parts for Lawn-Boy 10201-3900001 AND UP lawn mower, as well as links to manuals and error code tables, if available.
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Browse Parts for 10201-3900001 AND UP Walk-Behind Mowers
Gear case assembly diagram
15t Pinion
Part #55-3760Replaced by #104-7668
Manufacturer substitutionThis part replaces 55-3760. Substitute parts can look different from the original.In Stock$100.34
Qty
2 cycle engine, fuel tank & blade assembly diagram
Fuel Gasket
Part #613311Replaced by #613311
Manufacturer substitutionThis part replaces 613311. Substitute parts can look different from the original.This item is not returnableIn Stock$6.86QtyPlate Ht Aj
Part #92-4881Replaced by #92-4881-03
Manufacturer substitutionThis part replaces 92-4881. Substitute parts can look different from the original.In Stock$49.44QtyGrommet
Part #604604Replaced by #94-1610
Manufacturer substitutionThis part replaces 604604. Substitute parts can look different from the original.This item is not returnableIn Stock$2.16QtyGear case assembly diagram
Thrust Washer
Part #36-4791Replaced by #36-4791
Manufacturer substitutionThis part replaces 36-4791. Substitute parts can look different from the original.In Stock$28.59Qty2 cycle engine assembly diagram
Baffle
Part #614681Replaced by #93-4343
Manufacturer substitutionThis part replaces 614681. Substitute parts can look different from the original.In Stock$50.28QtyShort Block
Part #92-4922Replaced by #94-5737
Manufacturer substitutionThis part replaces 92-4922. Substitute parts can look different from the original.In Stock$890.44QtyHandle assembly diagram
Screw
Part #614697Replaced by #614697
Manufacturer substitutionThis part replaces 614697. Substitute parts can look different from the original.In Stock$28.82QtyRecoil starter assembly diagram
Dog
Part #92-4931Replaced by #92-4931
Manufacturer substitutionThis part replaces 92-4931. Substitute parts can look different from the original.In Stock$48.15QtyScrew
Part #614677Replaced by #614677
Manufacturer substitutionThis part replaces 614677. Substitute parts can look different from the original.In Stock$32.03Qty
Most common symptoms to help you fix your walk-behind mowers
Choose a symptom to see related walk-behind mower repairs.
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, ba…
Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…
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: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…
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 front deck tray
Learn how to replace the front deck tray on your lawn mower if it's cracked or damaged.…
Repair time and Difficulty
60 minutes or less
How to replace a lawn mower transmission
Learn how to replace the transmission on your lawn mower if it's locked up or won't drive the wheels.…
Repair time and Difficulty
60 minutes or less
How to replace a lawn mower flywheel key on a flathead engine
When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…
Repair time and Difficulty
45 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.
Wondering when to mow your lawn for the best results? Timing matters more than you might think. Discover the best time o…
See a comparison of cordless lawn mowers and gas mowers so you can decide which is best for you.…
Learn about a new feature added to the Search Bar on Sears PartsDirect…
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