Rear-Engine Riding Mower

Model # 17ARCACT099 Official MTD riding lawn mower

Here are the diagrams and repair parts for Official MTD 17ARCACT099 riding lawn mower, as well as links to manuals and error code tables, if available.

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17ARCACT099 Riding Mowers & Tractors
Craftsman Lawn Tractor 46-in Deck Premium 2-in-1 Blade (replaces 742-04244a, 942-04244) 942-04244A
#32

Deck/spindle diagram

Craftsman lawn tractor 46-in deck premium 2-in-1 blade (replaces 742-04244a, 942-04244)

Part #942-04244A

Replaced by #942-04290A

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Manufacturer substitution
This part replaces 942-04244A. Substitute parts can look different from the original.
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$22.79
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Lawn & Garden Equipment Cotter Pin, 1/4- To 5/16-in 714-04040
Lawn & garden equipment cotter pin, 1/4- to 5/16-in

Part #714-04040

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$2.82
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Lawn & Garden Equipment Hex Flange Nut (replaces 753-05549, 912-0417a) 712-0417A
#15

Deck/spindle diagram

Lawn & garden equipment hex flange nut (replaces 753-05549, 912-0417a)

Part #712-0417A

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Lawn Tractor Ignition Key 625-04124
#12

Muffler shield/bumper diagram

Lawn tractor ignition key

Part #625-04124

Replaced by #925-1745A

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This part replaces 625-04124. Substitute parts can look different from the original.
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$19.56
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Lawn Tractor Gauge Wheel 734-04155
#25

Deck/spindle diagram

Lawn tractor gauge wheel

Part #734-04155

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Yard Machines Lawn Tractor Flange Nut (replaces 00012173, Wd-129-103) 712-04065
Yard machines lawn tractor flange nut (replaces 00012173, wd-129-103)

Part #712-04065

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$5.27
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Lawn Tractor Ground Drive Belt, 9/16 X 67-1/2-in 954-04317A
#25

Transmission/wheels diagram

Lawn tractor ground drive belt, 9/16 x 67-1/2-in

Part #954-04317A

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Lawn Tractor Shoulder Bolt (replaces 738-3056) 938-3056
#31

Deck/spindle diagram

Lawn tractor shoulder bolt (replaces 738-3056)

Part #938-3056

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Lawn & Garden Equipment Flange Nut 712-04217
#8

Caster wheel bracket diagram

Lawn & garden equipment flange nut

Part #712-04217

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Lawn Tractor Screw (replaces 01000628, 01000865, 1186307, 1186308, 791-180288, 791-683298, 910-0599) 710-0599
Lawn tractor screw (replaces 01000628, 01000865, 1186307, 1186308, 791-180288, 791-683298, 910-0599)

Part #710-0599

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

Choose a symptom to see related riding mower and lawn tractor repairs.

Main causes: faulty battery, bad alternator…

Main causes: damaged cutting blade, worn deck pulley, damaged mandrel pulley, loose fasteners on mower deck components…

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

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

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

Main causes: engine overfilled with oil, leaky head gasket or sump gasket, damaged carburetor seals, cracked fuel pump, …

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

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

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

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.

How to replace the starter motor on a riding lawn mower

How to replace the starter motor on a riding lawn mower

If you hear the solenoid click but don’t hear the starter motor spin when you turn the key, follow these steps to replac…

Repair difficulty
Time required
 30 minutes or less
How to rebuild a riding lawn mower carburetor

How to rebuild a riding lawn mower carburetor

Get your sputtering carburetor running smoothly in 60 minutes.…

Repair difficulty
Time required
 60 minutes or less
How to replace a riding lawn mower rear tire

How to replace a riding lawn mower rear tire

Your mower can’t run on a damaged rear tire. Here’s how to install a new one.…

Repair difficulty
Time required
 60 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.

How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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.…