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Craftsman 3934 lawn mower Parts
Here are the diagrams and repair parts for Craftsman 3934 lawn mower, as well as links to manuals and error code tables, if available.
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Browse Parts for 3934 Walk-Behind Mowers
2 cycle engine assembly diagram
Strap
Part #92-2925Replaced by #92-2925
Manufacturer substitutionThis part replaces 92-2925. Substitute parts can look different from the original.In Stock$28.59
Qty
Gear 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, fuel tank & blade assembly diagram
Screw Engine
Part #92-1624Replaced by #95-1726
Manufacturer substitutionThis part replaces 92-1624. Substitute parts can look different from the original.In Stock$27.62Qty2 cycle engine assembly diagram
Rivet
Part #3290-459Replaced by #3290-459
Manufacturer substitutionThis part replaces 3290-459. Substitute parts can look different from the original.In Stock$28.59Qty2 cycle engine assembly diagram
Stop
Part #53-4690Replaced by #53-4690
Manufacturer substitutionThis part replaces 53-4690. Substitute parts can look different from the original.In Stock$32.23QtyHandle assembly diagram
Screw
Part #614697Replaced by #614697
Manufacturer substitutionThis part replaces 614697. Substitute parts can look different from the original.In Stock$28.82Qty2 cycle engine assembly diagram
Lead
Part #681678Replaced by #681678
Manufacturer substitutionThis part replaces 681678. Substitute parts can look different from the original.In Stock$67.47QtyGrommet
Part #604604Replaced by #94-1610
Manufacturer substitutionThis part replaces 604604. Substitute parts can look different from the original.This item is not returnableIn Stock$2.16Qty2 cycle engine assembly diagram
High Tension Lead
Part #684179Replaced by #684179
Manufacturer substitutionThis part replaces 684179. Substitute parts can look different from the original.In Stock$104.94QtyGear 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$100.34Qty
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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