
MTD Lawn Tractor Replacement Parts For Model 138-663-121 (1988) (Style 3)
Popular Parts for MTD 138-663-000 (1988) (Style 3)
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Part Number:753-0685
Discontinued
Note: for Model 996 Only.
Part Number:753-0579
Discontinued
Note: (Reverse)
Part Number:725-0803B
In Stock
Note: (Deck) - 38" & 40" Decks
Part Number:925-0819A
Discontinued
Note: (686) - 44" Deck
Part Number:925-0201
In Stock
Note: Electric Start Models Only

Part Number:722-0135
Discontinued

Part Number:629-0739
Discontinued

Part Number:925-0453G
Discontinued
Note: (Also See "Body" Illustration and Parts List.)
Part Number:725-0577
Discontinued
Note: (Clutch)

Part Number:725-0916A
Discontinued
Note: (Headlight)
Part Number:925-1058A
Discontinued
Note: [Used With Ref No. 40 (Models 802, 812, & 822)]

Part Number:725-1314A
Discontinued
Note: Nla - 38" Deck

Part Number:725-1315
Discontinued
Note: 40" & 44" Decks

Part Number:725-1316
Discontinued
Note: Nla (686) - 40" & 44" Decks

Part Number:925-1317
Discontinued
Note: 38" Deck

Part Number:925-1080
Discontinued

Part Number:629-0740
Discontinued
Note: Vanguard Engine Only.
Part Number:925-0771
In Stock
Note: (for Tractors W/Serial No. 170,599 and Below)
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Part Number:15808
Discontinued
Note: Style 3 *
Part Number:938-0952A
In Stock
Note: (Models 803, 813 & 823 Only)
Part Number:736-0413
Usually ships in 7 - 12 business days
Part Number:736-0169
Usually ships in 7 - 12 business days
Part Number:712-0798
In Stock
Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if Items Cannot Be Obtained Locally, Order by Part Number an

Part Number:712-0272
Usually ships in 7 - 12 business days
Note: (Units With Manual Pto.)

Part Number:736-0931
Usually ships in 7 - 12 business days
Note: Used W/ Twin Engine Only.
Part Number:710-0473
Usually ships in 7 - 12 business days
Note: (Units With Manual Pto.)

Part Number:722-0138
Discontinued
Part Number:946-0613A
In Stock
Note: For Model 145w834p
Part Number:912-0113
Usually ships in 7 - 12 business days
Note: (514)

Part Number:735-0224
Discontinued
Note: Used W/Twin Cylinder Engine Only.
Part Number:925-1058A
Discontinued
Note: [Used With Ref No. 40 (Models 802, 812, & 822)]
Part Number:931-0705
Discontinued
Note: [Used With Ref No. 40 (Models 802, 812, & 822)]
Part Number:931-0706
Discontinued
Note: [Used With Ref No. 40 (Models 802, 812, & 822)] - Style 3
Part Number:712-0380
Usually ships in 7 - 12 business days
Note: (Model 753 Only)
Part Number:710-3008
In Stock
Note: Models With Electric Pto Only

Part Number:17300E-0637
Discontinued
Part Number:936-0119
In Stock
Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if Items Cannot Be Obtained Locally, Order by Part Number an
Part Number:911-0222A
Discontinued
Note: (514)

Part Number:731-0707A
Discontinued

Part Number:925-0453G
Discontinued
Note: (Also See "Body" Illustration and Parts List.)

Part Number:15930B
Discontinued

Part Number:14619A
Usually ships in 7 - 12 business days

Part Number:15821
Discontinued

Part Number:15822-0637
Discontinued
Part Number:710-0726
In Stock
Note: 500 & 600 Series

Part Number:738-0526
Usually ships in 7 - 12 business days

Part Number:14604E
Usually ships in 7 - 12 business days
Note: Nla (R.H. & L.H.) - R.H. & L.H.
Part Number:912-0287
Discontinued
Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if Items Cannot Be Obtained Locally, Order by Part Number an
Part Number:936-0329
In Stock
Note: (for Model E633e)
Part Number:710-0323
Usually ships in 7 - 12 business days
Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if Items Cannot Be Obtained Locally, Order by Part Number an

Part Number:723-0360A
Discontinued
Part Number:14602G-0637
Discontinued

Part Number:738-0759
Discontinued
Note: (Models 808, 818 & 828 Only) - Style 8

Part Number:17230
Usually ships in 7 - 12 business days
Part Number:710-0351
Usually ships in 7 - 12 business days
Note: Used on Briggs and Stratton Engines Only
Part Number:710-05177
In Stock
Part Number:736-0173
In Stock
Note: Used With Manual Pto
Part Number:17286B-0637
Usually ships in 7 - 12 business days
Note: New Part
Part Number:753-0579
Discontinued
Note: (Reverse)
Part Number:926-0320
Usually ships in 7 - 12 business days
Note: New Part

Part Number:17226
Discontinued

Part Number:14603G-0637
Discontinued

Part Number:12747A
Discontinued
Part Number:710-0924
Usually ships in 7 - 12 business days
Note: Purchase Locally

Part Number:16469
Discontinued
Note: (Models 803, 813 & 823 Only) - Style 3

Part Number:16720
Discontinued
Note: Style 8

Part Number:15815A
Discontinued
Note: Style 3

Part Number:17309B
Discontinued
Note: Style 8
Part Number:736-0607
In Stock
Note: (Model X604g)
Part Number:946-0634
In Stock
Note: Used on 1463834h
Part Number:710-1026
In Stock
Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if These Items Cannot Be Obtained Locally, Order by Part Num - Style 8

Part Number:950-0583
Discontinued
Note: Nla - Style 8
Part Number:925-0201
In Stock
Note: Electric Start Models Only

Part Number:17295-0637
Discontinued

Part Number:731-0511-10
Usually ships in 7 - 12 business days
Note: Model (14as848h022)

Part Number:732-0462
Discontinued
Part Number:957-0360A
Discontinued
Note: For Model (619)

Part Number:910-0749
Discontinued
Part Number:710-0779A
Usually ships in 7 - 12 business days
Note: For Model 587b

Part Number:15931
Discontinued
Note: (Models 803, 813 & 823 Only)

Part Number:731-0511-10
Usually ships in 7 - 12 business days
Note: Model (14as848h022)
Part Number:710-0642
In Stock
Note: (4 Bolts Needed for Center Auger Bracket)

Part Number:722-0157
Usually ships in 7 - 12 business days
Note: Only on Wheels With 8-Inch Rim
Part Number:710-0227
In Stock
Note: (462r, 472r)

Part Number:16371
Usually ships in 7 - 12 business days
Part Number:926-0154
Usually ships in 7 - 12 business days
Note: (Not Shown)
Part Number:932-0581B
In Stock
Note: Attach the Sort End of Spring to the Notch in the Rear of Ref. No. 2 Attach the Long End to Ref. No. 1.
Part Number:17239C
Discontinued
Part Number:738-0296
In Stock
Note: 938-0296

Part Number:17243
Discontinued
Part Number:938-0155
Usually ships in 7 - 12 business days
Note: (Units With Manual Pto.)

Part Number:17244
Discontinued
Part Number:936-0141
Usually ships in 7 - 12 business days
Note: 936-0141
Part Number:710-0602
In Stock
Note: Quantity of 3 for Model Hwt-5e Only; Quantity of 1 for Model Hwt-4
Part Number:736-0159
Backorder: No ETA
Note: Not Used in This Application

Part Number:722-0160
Discontinued
Part Number:732-0588
Discontinued

Part Number:783-0039A-0637
Discontinued
Note: New Part
Part Number:710-0623
In Stock
Note: (the Chain Case Must Be Assembled to the Frame With a 3/4" Hex Bolt, Lock Washer, and Belleville Washer as Shown.)

Part Number:731-0873A
Discontinued

Part Number:731-0967
Discontinued
Note: (Optional Part)
Part Number:735-0689A
Discontinued
Note: (Optional)

Part Number:736-0426
Discontinued