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Model # 660 THRU 679 Official MTD lawn tractor
Here are the diagrams and repair parts for Official MTD 660 THRU 679 lawn tractor, as well as links to manuals and error code tables, if available.
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660 THRU 679 Riding Mowers & Tractors
Lawn tractor blade
Part #742-0616
Replaced by #942-0616A
?
Manufacturer substitution
This part replaces 742-0616. Substitute parts can look different from the original.
Get free shipping with Automatic Reorder
$31.35 |
16% OFF Phone Price : $37.35
In Stock
Gasket
Part #721-0208
Replaced by #692236
?
Manufacturer substitution
This part replaces 721-0208. Substitute parts can look different from the original.
$6.76 |
13% OFF Phone Price : $7.76
In Stock
Ace lawn & garden equipment self-tapping bolt, 5/16-18 x 3/4-in (replaces 1724491, 1740496, 1909304, 910-1260a, gw-7101260)
Part #710-1260A
This item is not returnable
$4.47 |
18% OFF Phone Price : $5.47
In Stock
Hex screw
Part #710-1260
Replaced by #710-1260A
?
Manufacturer substitution
This part replaces 710-1260. Substitute parts can look different from the original.
This item is not returnable
$4.47 |
18% OFF Phone Price : $5.47
In Stock
Lawn mower dust cover
Part #731-0484A
Replaced by #931-0484A
?
Manufacturer substitution
This part replaces 731-0484A. Substitute parts can look different from the original.
$7.36 |
12% OFF Phone Price : $8.36
In Stock
Joint assembly
Part #723-0448
Replaced by #923-0448A
?
Manufacturer substitution
This part replaces 723-0448. Substitute parts can look different from the original.
$22.71 |
21% OFF Phone Price : $28.71
In Stock
#19
Steering - series 660 thru 679 diagram
Joint assembly
Part #723-0448A
Replaced by #923-0448A
?
Manufacturer substitution
This part replaces 723-0448A. Substitute parts can look different from the original.
$22.71 |
21% OFF Phone Price : $28.71
In Stock
Yard machines lawn & garden equipment bell washer (replaces 936-0242)
Part #736-0242
This item is not returnable
$6.58 |
13% OFF Phone Price : $7.58
In Stock
Sears lawn tractor screw
Part #710-0627
This item is not returnable
$6.47 |
13% OFF Phone Price : $7.47
In Stock
#25
Steering/front wheel diagram
Bar pivot assembly
Part #683-0128
Replaced by #683-0128B-0637
?
Manufacturer substitution
This part replaces 683-0128. Substitute parts can look different from the original.
$93.30 |
6% OFF Phone Price : $99.30
In Stock
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: punctured tire or inner tube, leaky valve stem, damaged wheel rim…
Main causes: clogged carburetor, damaged flywheel key, dirty spark plug, stale fuel, improper valve lash, engine needs a…
Main causes: worn or broken ground drive belt, bad seat switch, transaxle freewheel control engaged, transaxle failure, …
Main causes: damaged tie rods, bent or worn wheel spindle, worn front axle, damaged sector gear assembly…
Main causes: engine overfilled with oil, leaky head gasket or sump gasket, damaged carburetor seals, cracked fuel pump, …
Main causes: shift lever needs adjustment, neutral control needs adjustment…
Main causes: worn or broken blade belt, broken belt idler pulley, blade clutch cable failure, bad PTO switch, damaged ma…
Main causes: damaged cutting blade, worn deck pulley, damaged mandrel pulley, loose fasteners on mower deck components…
Main causes: faulty battery, bad alternator…
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 a riding lawn mower rear tire](https://images.ctfassets.net/fpe0ec7r30ix/6ciIr4vVP6DktokGT8E4Cc/efeb1b7e2337ba468065e24539caac1d/RG-RM-Replace-a-Riding-Mower-Rear-Tire-Intro-Image.jpg?fm=png&w=270&h=270)
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
![How to replace a riding lawn mower blade](https://images.ctfassets.net/fpe0ec7r30ix/6zKLfCkPPGurcABydOtU3F/d792f83ad15d211a2bf063dd65bac9fe/RG-RM-Replace-a-Riding-Mower-Blade-Intro-Image.jpg?fm=png&w=270&h=270)
How to replace a riding lawn mower blade
If a blade on your mower is dull or bent, replace it following the steps in this repair guide.…
Repair difficulty
Time required
30 minutes or less
![How to replace a riding lawn mower fuel filter](https://images.ctfassets.net/fpe0ec7r30ix/1K6KKk4F313ufkniggzedG/84a0df562efbeb3e649d7c0ce72d2d60/RG-RM-Replace-a-Riding-Mower-Fuel-Filter-Intro-Image.jpg?fm=png&w=270&h=270)
How to replace a riding lawn mower fuel filter
Help your mower run better by replacing the fuel filter during your riding mower's annual tune-up.…
Repair difficulty
Time required
15 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](https://images.ctfassets.net/fpe0ec7r30ix/1khJyw1eeQGvYKSbulrYWd/69493382c31bbf8d70b67fe7545f5e60/SPD_website_features.png?fm=png&w=270&h=270)
Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…
![Top questions about Sears and Sears PartsDirect](https://images.ctfassets.net/fpe0ec7r30ix/71r4g5Qhkmxm0giaIpcktG/e37c53ab5e6190ca17767b9872422fb8/Sears_PartsDirect_questions.png?fm=png&w=270&h=270)
Get answers to frequently asked questions about Sears and Sears PartsDirect.…
![Riding lawn mower engine clicks but doesn't turn over video](https://images.ctfassets.net/fpe0ec7r30ix/5VAlCw3MjLe6YkXAhYreip/a1a3860a80ea82e0b0a83e5516d522f2/ART-RM-Riding-Lawn-Mower-Engine-Clicks-but-Doesn_t-Turn-Over-Video.jpg?fm=png&w=270&h=270)
Check the starter solenoid, starter motor, wiring, battery and engine.…