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Bolens 668 lawn tractor Parts
Here are the diagrams and repair parts for Bolens 668 lawn tractor, as well as links to manuals and error code tables, if available.
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Browse Parts for 668 Riding Mowers & Tractors
46" deck shell/chute diagram
Snap Ring
Part #716-3020Replaced by #916-3020
Manufacturer substitutionThis part replaces 716-3020. Substitute parts can look different from the original.This item is not returnableIn Stock$7.40
Qty
Engine/muffler/deck diagram
Oil Drain
Part #751-3140Replaced by #951-10517A
Manufacturer substitutionThis part replaces 751-3140. Substitute parts can look different from the original.This item is not returnableIn Stock$34.5115% OFF Phone Price : $40.51
QtySeat assembly diagram
Knob
Part #720-04009Replaced by #720-04009A
Manufacturer substitutionThis part replaces 720-04009. Substitute parts can look different from the original.This item is not returnableIn Stock$26.8418% OFF Phone Price : $32.84QtySeat assembly diagram
Insulator Nut
Part #726-0320Replaced by #926-0320
Manufacturer substitutionThis part replaces 726-0320. Substitute parts can look different from the original.In Stock$34.32QtyUpper and lower housing diagram
Thrust Washer
Part #736-0335Replaced by #936-0335
Manufacturer substitutionThis part replaces 736-0335. Substitute parts can look different from the original.This item is not returnableIn Stock$12.46QtyUpper and lower housing diagram
Flat Washer
Part #736-0336Replaced by #936-0336
Manufacturer substitutionThis part replaces 736-0336. Substitute parts can look different from the original.This item is not returnableIn Stock$8.20QtyEngine/muffler/deck diagram
Twin Muffler
Part #751-0616Replaced by #951-0616B
Manufacturer substitutionThis part replaces 751-0616. Substitute parts can look different from the original.In Stock$170.787% OFF Phone Price : $182.78QtyLift handle/lift shaft/frame diagram
Lawn Tractor Wheel Rim
Part #634-0070Replaced by #634-04369-0662
Manufacturer substitutionThis part replaces 634-0070. Substitute parts can look different from the original.In Stock$219.225% OFF Phone Price : $231.22QtyEngine/muffler/deck diagram
Oil Drain Cap
Part #751-3142Replaced by #951-10517A
Manufacturer substitutionThis part replaces 751-3142. Substitute parts can look different from the original.This item is not returnableIn Stock$34.5115% OFF Phone Price : $40.51QtyDeck/blade diagram
Belt
Part #754-0371AGet free shipping with Automatic ReorderReplaced by #954-0371A
Manufacturer substitutionThis part replaces 754-0371A. Substitute parts can look different from the original.In Stock$100.8011% OFF Phone Price : $112.80Qty
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: damaged tie rods, bent or worn wheel spindle, worn front axle, damaged sector gear assembly…
Main causes: dead battery, stale fuel, bad starter solenoid, ignition system problem, bad ignition interlock switch, clo…
Main causes: worn or broken blade belt, broken belt idler pulley, blade clutch cable failure, bad PTO switch, damaged ma…
Main causes: engine overfilled with oil, leaky head gasket or sump gasket, damaged carburetor seals, cracked fuel pump, …
Main causes: punctured tire or inner tube, leaky valve stem, damaged wheel rim…
Main causes: unlevel mower deck, dull or damaged cutting blades, worn mandrel pulleys, bent mower deck, engine needs tun…
Main causes: worn or broken ground drive belt, bad seat switch, transaxle freewheel control engaged, transaxle failure, …
Main causes: faulty battery, bad alternator…
Main causes: shift lever needs adjustment, neutral control needs adjustment…
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 the starter solenoid on a riding lawn mower
Replace the starter solenoid if it doesn't click when you turn the ignition key.…
Repair time and Difficulty
30 minutes or less
How to replace a riding lawn mower ignition coil
If you're not getting spark from a good spark plug, the problem could be the ignition coil. Follow these step-by-step in…
Repair time and Difficulty
30 minutes or less
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 time and Difficulty
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.
Get answers to frequently asked questions about Sears and Sears PartsDirect.…
Learn some of the most common symbols found in a wiring diagram and what they mean.…
Learn how to connect cables safely to jump-start your mower’s battery.…
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