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Husqvarna
Rear-Engine Riding Mower

Model # 917277840 Official Husqvarna riding lawn mower

Here are the diagrams and repair parts for Official Husqvarna 917277840 riding lawn mower, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Owner’s manual

Model diagram and schematic

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Showing 10 of 262 parts  |
Husqvarna Lawn Tractor 42-inch Deck Mulching Blade (replaces 594892701) 532134149
#22

42" deck diagram

Husqvarna lawn tractor 42-inch deck mulching blade (replaces 594892701)

Part #532134149

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$22.14 | 
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Washer Screw 539107630
Washer screw

Part #539107630

Replaced by #584953901

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Manufacturer substitution
This part replaces 539107630. Substitute parts can look different from the original.
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$5.31 | 
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Shoulder Bolt 532137644
Shoulder bolt

Part #532137644

Replaced by #596434404

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Manufacturer substitution
This part replaces 532137644. Substitute parts can look different from the original.
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Hinge Rod 532131491
Hinge rod

Part #532131491

Replaced by #595297001

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Manufacturer substitution
This part replaces 532131491. Substitute parts can look different from the original.
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$7.05 | 
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Lawn & Garden Equipment Flat Washer 539990692
Lawn & garden equipment flat washer

Part #539990692

Replaced by #596134901

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Manufacturer substitution
This part replaces 539990692. Substitute parts can look different from the original.
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$3.98 | 
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Lawn Tractor 48-in Deck High-lift Blade (replaces 180054) 532180054
#6

48" deck diagram

Lawn tractor 48-in deck high-lift blade (replaces 180054)

Part #532180054

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Lawn Tractor Washer 539990122
Lawn tractor washer

Part #539990122

Replaced by #596565301

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Manufacturer substitution
This part replaces 539990122. Substitute parts can look different from the original.
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$5.11
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Lawn Tractor Nut 539976978
Lawn tractor nut

Part #539976978

Replaced by #582478602

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Manufacturer substitution
This part replaces 539976978. Substitute parts can look different from the original.
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Lawn Tractor Mandrel Pulley (replaces 153535, 153535ms, 153535wa, 153535x431, 177865, 532173436, 5321734-36, 539112171, 577203105) 173436
#23

54" deck diagram

Lawn tractor mandrel pulley (replaces 153535, 153535ms, 153535wa, 153535x431, 177865, 532173436, 5321734-36, 539112171, 577203105)

Part #173436

Replaced by #532173436

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Manufacturer substitution
This part replaces 173436. Substitute parts can look different from the original.
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$23.71
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Craftsman Lawn Tractor Seat Spring 539110300
#29

Main frame-54" deck diagram

Craftsman lawn tractor seat spring

Part #539110300

Replaced by #587613301

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Manufacturer substitution
This part replaces 539110300. Substitute parts can look different from the original.
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$7.98 | 
11% OFF Phone Price : $8.98
In Stock

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Most common symptoms to help you fix your riding mowers & tractors

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Why won't my riding mower cut grass?

Main causes: worn or broken blade belt, broken belt idler pulley, blade clutch cable failure, bad PTO switch, damaged ma…

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How do I charge a dead battery on my riding mower?

Main causes: faulty battery, bad alternator…

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How do I fix a flat tire on my riding mower?

Main causes: punctured tire or inner tube, leaky valve stem, damaged wheel rim…

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Why won't my riding mower start?

Main causes: dead battery, stale fuel, bad starter solenoid, ignition system problem, bad ignition interlock switch, clo…

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Why is the steering loose on my riding mower?

Main causes: damaged tie rods, bent or worn wheel spindle, worn front axle, damaged sector gear assembly…

Read more

Why does my riding mower creep in neutral?

Main causes: shift lever needs adjustment, neutral control needs adjustment…

Read more

Why does my riding mower run rough or misfire?

Main causes: clogged carburetor, damaged flywheel key, dirty spark plug, stale fuel, improper valve lash, engine needs a…

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Why won't my riding mower move?

Main causes: worn or broken ground drive belt, bad seat switch, transaxle freewheel control engaged, transaxle failure, …

Read more

Why is my riding mower not cutting evenly?

Main causes: unlevel mower deck, dull or damaged cutting blades, worn mandrel pulleys, bent mower deck, engine needs tun…

Read more

Most common repair guides to help fix your riding mowers & tractors

These step-by-step repair guides will help you safely fix what’s broken on your riding mower or lawn tractor.

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How to replace a mandrel assembly on a riding lawn mower

How to replace a mandrel assembly on a riding lawn mower

Replace the mandrel assembly if the blade shaft vibrates or doesn't spin.…

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Repair difficulty
Time required
 30 minutes or less
How to replace the flywheel key on a riding lawn mower

How to replace the flywheel key on a riding lawn mower

If the engine won't restart after hitting a stump or rock, the problem could be a sheared flywheel key. Follow these ste…

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Repair difficulty
Time required
 60 minutes or less
How to replace a riding lawn mower ignition coil

How to replace a riding lawn mower ignition coil

If you're not getting spark from a good spark plug, the problem could be the ignition coil. Follow these step-by-step in…

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Repair difficulty
Time required
 30 minutes or less

Effective articles & videos to help repair your riding mowers & tractors

Use the advice and tips in these articles and videos to get the most out of your riding mower or lawn tractor.

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Riding lawn mower engine clicks but doesn't turn over video

Riding lawn mower engine clicks but doesn't turn over video

Check the starter solenoid, starter motor, wiring, battery and engine.…

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