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Parts for Mtd 688: Engine Parts

Parts for Mtd 688: Engine Parts

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Part Description
Price & Availability
NI01
Product photo
By: Mtd

Grease lubricant for lawn tractors and mowers. Replace regularly to protect moving parts and reduce friction. Verify fit with your model number.

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$39.71
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$47.25
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$7.54

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1
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By: Mtd

Hex washer screw for lawn tractors and garden equipment. Fastens components together with built-in washer. Replace when stripped, missing, or worn.

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$4.95
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$5.89
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$0.94

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Usually ships within 4 - 14 days

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2
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By: Mtd

Hex screw fastener for securing lawn mower components. Replace if stripped, rusted, or missing to ensure proper assembly and equipment stability.

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$4.60
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$5.47
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$0.87

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4
By: Mtd

Tap screw for lawn mowers and tractors. Secures panels, guards, and components. Replace if stripped, rusted, or missing to restore proper assembly.

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$7.95
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$8.47
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$0.52

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5
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By: Mtd

Cap socket head screw for lawn tractors and riding mowers. Secures panels, housings, and components. Order now to replace missing or stripped screws.

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$4.95
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$5.89
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$0.94

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6
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By: Mtd

Self-tapping hex screw with blunt nose for lawn mower engine assembly. Replace worn, stripped, or missing screws. Threads tightly secure metal components.

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$4.95
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$5.94
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$0.99

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7
By: Mtd

Left-hand exhaust pipe for lawn tractors. Directs engine exhaust gases away from the engine. Replace if cracked, rusted, or causing exhaust leaks.

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$34.74
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$41.32
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$6.58

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8
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$8.95
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$9.14
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$0.19

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9
$8.31
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$9.39
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$1.08

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10
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By: Mtd

Secures hoses on outdoor power equipment to prevent leaks and maintain proper fluid flow. Replace if loose, corroded, or damaged. Verify fit with your model.

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$3.95
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$4.66
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$0.71

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12
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By: Mtd

5/16 lock washer for lawn mowers and outdoor power equipment. Secures engine blocks, manifolds, and pulley shafts. Replace if cracked or missing.

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$5.95
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$7.02
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$1.07

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14
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By: Mtd

Secures the governor control plate to the tank assembly on lawn equipment. Replace if loose, cracked, or causing engine speed issues. Confirm fit with your model.

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$11.69
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$13.91
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$2.22

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16
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By: Mtd

Muffler deflector shield for lawn tractors and riding mowers. Protects surrounding components from exhaust heat. Replace if cracked, bent, or missing.

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$16.66
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$19.83
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$3.17

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17
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By: Mtd

Exhaust muffler for lawn mowers and tractors. Reduces engine noise during operation. Replace if cracked, rusted, or excessively loud from wear or damage.

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$171.45
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$204.03
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$32.58

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18
By: Mtd

Right-side exhaust pipe for lawn tractors and mowers. Replace if cracked, rusted, or leaking. Directs engine exhaust safely away from the mowing deck.

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$35.95
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$42.98
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$7.03

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19
$60.98
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$65.13
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$4.15

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20
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By: Mtd

Oil draining slowly or leaking during changes? This oil drain valve ensures quick, clean oil changes on your lawn mower. Simple DIY install in minutes.

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$26.83
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$29.44
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$2.61

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21
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By: Mtd

14-inch drain hose for lawn mowers and tractors. Replaces cracked, split, or deteriorated fuel or oil drain hoses. Essential for leak-free operation.

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$12.40
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$14.76
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$2.36

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22
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By: Mtd

Oil draining slowly or leaking during changes? This oil drain valve ensures quick, clean oil changes on your lawn mower. Simple DIY install in minutes.

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$26.83
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$29.44
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$2.61

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23
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By: Mtd

Protective plastic bracket that mounts on the muffler of lawn tractors and mowers. Replace if cracked, broken, or missing to prevent muffler damage.

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$73.65
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$87.64
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$13.99

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24
By: Mtd
$86.27
Compare At:
$92.14
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$5.87

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25
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By: Mtd

Oil drain sleeve fastener for lawn tractors and riding mowers. Secures the oil drain system. Replace if cracked, stripped, or missing for proper fit.

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$9.40
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$11.09
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$1.69

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26
Product photo
By: Mtd

Excessive engine noise from your lawn tractor? This muffler reduces exhaust sound. Metal construction withstands outdoor use. Self-tapping screws required.

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$164.17
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$180.95
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$16.78

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27
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By: Mtd

Seals the connection between carburetor and exhaust tube to prevent air leaks, performance issues, and loud noise. Replace when you notice smoke or leaks.

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$6.95
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$8.20
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$1.25

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29
By: Mtd
$11.95
Compare At:
$12.39
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$0.44

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31
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By: Mtd
$80.78
Compare At:
$86.27
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$5.49

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32
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By: Mtd

Hex washer head screw for lawn equipment. Secures components and panels. Replace if stripped, missing, or corroded for proper assembly and fit.

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$4.95
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$5.89
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$0.94

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33
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By: Mtd

Replacement hex bolt for lawn mowers and outdoor power equipment. Secures components throughout the machine. Replace when stripped, broken, or missing.

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$5.95
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$7.08
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$1.13

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34
Product photo
By: Mtd

Belt guard pin secures the protective cover over drive belts on lawn tractors. Replace if broken, bent, or missing to keep belt guard properly attached. Verify fit with your model number.

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$9.95
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$11.84
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$1.89

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35
By: Mtd
Not available

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

36
Product photo
By: Mtd

Flat washer for lawn tractors and riding mowers. Secures bolts and distributes load across assemblies. Replace if worn, corroded, or missing.

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$11.95
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$14.10
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$2.15

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37
By: Mtd

Replacement spacer for lawn mowers and tractors. Maintains proper spacing between components. Order a new spacer if yours is missing, damaged, or worn.

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$21.06
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$22.19
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$1.13

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38
Product photo
By: Mtd

Guides and creates tension for engine drive belts on your lawn tractor. Replace if worn or belt squealing occurs. Verify fit with your model number.

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$132.88
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$138.71
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$5.83

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39
$6.51
Compare At:
$7.29
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$0.78

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40
By: Mtd

Exhaust pipe for lawn tractors. Directs engine exhaust gases away from the operator. Replace if cracked, rusted, or damaged to prevent fumes.

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$78.95
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$93.95
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$15.00

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41
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$4.48
Compare At:
$4.62
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$0.14

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42
Product photo
By: Mtd

7-inch plastic cable tie secures cables to lawn mower or tiller handles. Replace when cracked, broken, or worn to keep cables properly fastened.

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$4.14
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$4.55
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$0.41

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43
By: Mtd

Replace your lawn tractor exhaust pipe if you notice loud engine noise, exhaust fumes near the operator, or visible cracks. Direct-fit part for proper ventilation.

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$46.95
Compare At:
$56.08
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$9.13

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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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