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MTD
Front-Engine Lawn Tractor

Model # 660 Official MTD lawn tractor

Here are the diagrams and repair parts for Official MTD 660 lawn tractor, as well as links to manuals and error code tables, if available.

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

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 712 parts  |
Lawn Tractor Blade 742-0616
#23

Mower deck g diagram

Lawn tractor blade

Part #742-0616

Replaced by #942-0616A

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Manufacturer substitution
This part replaces 742-0616. Substitute parts can look different from the original.
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Lawn Mower Blade 742-0616A
#8A

Spindle assembly diagram

Lawn mower blade

Part #742-0616A

Replaced by #942-0616A

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Manufacturer substitution
This part replaces 742-0616A. Substitute parts can look different from the original.
BEST SELLER

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Gasket 721-0208
Gasket

Part #721-0208

Replaced by #692236

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Manufacturer substitution
This part replaces 721-0208. Substitute parts can look different from the original.
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Ace Lawn & Garden Equipment Self-tapping Bolt, 5/16-18 X 3/4-in (replaces 1724491, 1740496, 1909304, 910-1260a, Gw-7101260) 710-1260A
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

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Hex Screw 710-1260
Hex screw

Part #710-1260

Replaced by #710-1260A

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Manufacturer substitution
This part replaces 710-1260. Substitute parts can look different from the original.
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Steering Shaft 738-0919
Steering shaft

Part #738-0919

Replaced by #738-0919B

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Manufacturer substitution
This part replaces 738-0919. Substitute parts can look different from the original.
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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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Yard Machines Lawn & Garden Equipment Bell Washer (replaces 936-0242) 736-0242
Yard machines lawn & garden equipment bell washer (replaces 936-0242)

Part #736-0242

This item is not returnable
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Sears Lawn Tractor Screw 710-0627
Sears lawn tractor screw

Part #710-0627

This item is not returnable
$6.47 | 
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Lawn Tractor Hex Bolt (replaces 910-0427, 910-3144) 710-3144
#10

Blades diagram

Lawn tractor hex bolt (replaces 910-0427, 910-3144)

Part #710-3144

This item is not returnable
$5.64 | 
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