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Parts for Mtd 663: Transmission Parts

Parts for Mtd 663: Transmission Parts

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Part Description
Price & Availability
1
By: Mtd

Wire retaining ring for lawn tractors and walk-behind mowers. Secures wiring harnesses in place. Replace if broken, missing, or no longer holding wires.

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$7.95
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$9.46
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$1.51

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2
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By: Mtd

Retaining ring for lawn tractors and mowers. Secures components in place on axles, shafts, or assemblies. Replace if missing, damaged, or worn.

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$5.39
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$6.47
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$1.08

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3
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By: Mtd

Fully-threaded hex tap screw for lawn tractors and outdoor power equipment. Fastens machine components together. Replace if damaged, stripped, or missing.

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$8.95
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$10.65
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$1.70

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4
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By: Mtd

This hex screw is a genuine MTD part. A hex screw can be used as a replacement part in refrigerators, humidifiers, lawn mowers, snowblowers, tillers, log splitters, and wood chippers. The purpose of this genuine OEM part is to stabilize and secure the pla

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$7.54
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$8.29
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$0.75

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5
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By: Mtd

This is an upper housing that is used with many models of lawnmowers and lawn tractors. The part is made of durable metal and has the responsibility of protecting many of the interior parts of the lawnmower. Over time, the upper housing can be damaged or

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$117.95
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$140.36
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$22.41

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8
By: Mtd

Replace a worn input shaft if your lawn tractor struggles to engage cutting blades or shows power loss. Moderate difficulty repair for most models.

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$38.84
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$42.72
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$3.88

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10
By: Mtd

Thrust washer for lawn tractors and garden tractors. Replaces worn, cracked, or missing washers in engine and drivetrain assemblies. Essential hardware.

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$7.77
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$9.25
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$1.48

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11
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By: Mtd

Lawn tractor input pinion gear that transfers power to drive components. Metal gear that wears over time causing loss of forward motion or grinding noise.

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$24.84
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$27.95
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$3.11

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12
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By: Mtd

Retaining ring for lawn tractors. Secures components in place on shafts and assemblies. Replace if broken, missing, or no longer holds parts securely.

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$5.95
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$6.55
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$0.60

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13
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By: Mtd

This part is a replacement drive shaft. This is a genuine OEM part made by MTD and has been sourced directly from the manufacturer. This part can replace a defective or broken drive shaft in snow blowers.The drive shaft ensures that the user can safely an

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$132.39
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$156.22
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$23.83

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14
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By: Mtd

Flange bearing for lawn tractors and walk-behind mowers. Replace when you notice excessive noise, wobbling, or difficulty with blade rotation. Verify fit with your model number before ordering.

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$12.60
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$14.99
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$2.39

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15
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By: Mtd

Fix lawn tractor drive issues with this bevel gear. Reverses shaft rotation for proper wheel engagement. Common repair for loss of forward motion.

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$58.77
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$69.94
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$11.17

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16
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By: Mtd

If your lawn tractor won't engage properly or makes grinding noises, a worn bevel gear may be the cause. This gear transmits power within the drive system.

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$58.95
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$70.74
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$11.79

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17
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By: Mtd

This clutch collar is an authentic OEM part sourced directly from the manufacturer for use in lawnmowers and lawn tractors. If there are problems with the lawnmower jerking and sputtering after changing gears, the clutch collar should be removed and repla

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$27.30
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$32.49
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$5.19

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21
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By: Mtd

Pan head screw for lawn tractors and walk-behind mowers. Secures covers, guards, and panels. Replace when stripped, rusted, or missing hardware.

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$2.58
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$3.08
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$0.50

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23
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By: Mtd

The bearing sleeve is an authentic part designed for use with lawn tractors of the riding variety. This bearing sleeve is located on the transmission shaft and used to assist in securing the bearing in its place. The location of this part means that it is

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$10.55
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$12.66
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$2.11

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24
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$8.95
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$10.74
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$1.79

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26
By: Mtd
Not available

This part is discontinued by the manufacturer and is no longer available for purchase.

34
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$177.95
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$211.76
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$33.81

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35
$7.52
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$8.46
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$0.94

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38
$7.41
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$8.22
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$0.81

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39
By: Mtd
$7.37
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$8.18
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$0.81

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40
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By: Mtd

Fix transmission engagement issues with this right actuating arm. Controls clutch and brake operation on lawn tractors. Direct-fit replacement part.

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$16.73
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$19.91
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$3.18

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41
By: Mtd
$24.64
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$27.10
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$2.46

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42
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By: Mtd
$10.95
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$12.20
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$1.25

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43
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By: Mtd

If your lawn tractor won't stop properly or brakes feel weak, this brake puck creates pressure on the brake disk when you push the pedal. Essential safety part.

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$9.40
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$11.19
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$1.79

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45
By: Mtd

Fixes weak or no braking on lawn tractors and riding mowers. This brake disc restores stopping power when brakes drag, squeal, or fail to engage properly.

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$16.95
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$20.17
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$3.22

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46
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By: Mtd

Flange bearing for lawn tractors and walk-behind mowers. Replace if you notice excessive noise, vibration, or wheel wobble. Verify fit with your model number.

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$12.95
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$15.54
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$2.59

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48
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$48.69
Compare At:
$57.94
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$9.25

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49
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By: Mtd

This ball detent is a genuine MTD replacement part for appliances operated by small engines, including lawn tractors, lawn mowers, snowblowers, leaf blowers, chipper shredders, and tillers. The function of a ball detent is to temporarily keep two parts in

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$6.95
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$8.34
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$1.39

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50
By: Mtd

Detent shaft spring for lawn tractors and tillers. Replaces worn, broken, or missing springs. Installs on the shift mechanism shaft assembly.

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$5.95
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$7.08
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$1.13

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52
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By: Mtd

Needle bearing for lawn tractors and mowers. Replace when you notice unusual noise, vibration, or rough movement. Confirm fit with your model number.

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$17.67
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$21.20
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$3.53

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54
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By: Mtd

This washer is compatible with most lawn mowers and lawn tractors. The smooth, round edges fit perfectly with 5/8-inch bolts to attach the bolts to parts on the mower, as necessary. The washer provides a buffer between the bolt and the surface that it is

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$4.95
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$5.89
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$0.94

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55
By: Mtd
$10.95
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56
By: Mtd

Hex screw fastener for lawn tractors and outdoor power equipment. Secures components throughout the machine. Replace if stripped, overtightened, or missing.

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$8.95
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$10.74
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$1.79

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58A
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By: Mtd

Engine thrust washer for lawn tractors and mowers. Provides critical spacing between engine components. Replace if worn or damaged to prevent friction issues.

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$6.95
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$8.27
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$1.32

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61
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By: Mtd

Replacement washer for lawn tractors and mowers. Secures parts by working with screws and nuts. Replace if worn, missing, or damaged during maintenance.

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$6.95
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$8.20
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$1.25

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62
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By: Mtd

Replace your lawn tractor's differential assembly if you're experiencing steering issues, uneven wheel turning, or loss of power to the wheels.

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$301.95
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$362.34
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$60.39

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63
$7.52
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$8.50
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$0.98

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NI
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$39.71
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$47.65
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$7.94

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NI
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By: Mtd

Connects headlight wiring to enable on/off control. Replace if lights fail, wires are damaged, or connections are corroded. Confirm fit with your model.

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$61.95
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$73.10
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$11.15

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  • boxes images Over 2.1 Million Parts In Stock
  • time delivery images 2 Day Quick Delivery!
  • box-refresh images 365 Day Return Policy!
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