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Craftsman 3938 lawn mower Parts
Here are the diagrams and repair parts for Craftsman 3938 lawn mower, as well as links to manuals and error code tables, if available.
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Browse Parts for 3938 Walk-Behind Mowers
Washer
Part #40-1940Replaced by #40-1940
Manufacturer substitutionThis part replaces 40-1940. Substitute parts can look different from the original.In Stock$27.95
Qty
Knob
Part #614682Replaced by #98-8332
Manufacturer substitutionThis part replaces 614682. Substitute parts can look different from the original.This item is not returnableIn Stock$32.94QtyKnob Ht Ajs
Part #92-1008Replaced by #92-1008
Manufacturer substitutionThis part replaces 92-1008. Substitute parts can look different from the original.In Stock$50.28QtyGrommet
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$28.59QtyHandle assembly diagram
Knob
Part #614243Replaced by #98-7134
Manufacturer substitutionThis part replaces 614243. Substitute parts can look different from the original.In Stock$29.15QtyRear axle assembly diagram
Washer
Part #65-4730Replaced by #65-4730
Manufacturer substitutionThis part replaces 65-4730. Substitute parts can look different from the original.In Stock$28.17QtyGear case assembly diagram
Bushing
Part #60-8750Replaced by #60-8750
Manufacturer substitutionThis part replaces 60-8750. Substitute parts can look different from the original.In Stock$36.54QtyDanger Decal
Part #39-5770Replaced by #39-5770
Manufacturer substitutionThis part replaces 39-5770. Substitute parts can look different from the original.In Stock$41.69QtyGear case assembly diagram
Nut
Part #3296-5Replaced by #3296-5
Manufacturer substitutionThis part replaces 3296-5. Substitute parts can look different from the original.In Stock$29.84Qty
Most common symptoms to help you fix your walk-behind mowers
Choose a symptom to see related walk-behind mower repairs.
Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…
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…
Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…
Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…
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 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…
Learn about the top 10 must-have electric lawn & garden tools for 2023…
Learn about the different kinds of mower blades and how to maintain them.…
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