Get free shipping on your order, with any water filter subscription. Find my filter

Open Hamburger Menu
Sears Parts Direct
Tips to find your model number
Tractor Accessories 66663 differential & axle assembly

Tractor Accessories 66663 differential & axle assembly Parts

Here are the diagrams and repair parts for Tractor Accessories 66663 differential & axle assembly, as well as links to manuals and error code tables, if available.

By Schematic
By Part
SELECT DIAGRAM
?

This is the number corresponding to the part on the diagram / schematic

Browse Parts for 66663 Differential & Axle Assembly

  • Axle Assembly for Tractor Accessories 66663 - Part 66674

    Differential and axle assembly diagram

    Axle Assembly

    Part #66674

    The manufacturer no longer makes this part, and there's no substitute part

  • Miter Gear for Tractor Accessories 66663 - Part 66681

    Differential and axle assembly diagram

    Miter Gear

    Part #66681

    The manufacturer no longer makes this part, and there's no substitute part

  • Differential Housing for Tractor Accessories 66663 - Part 66676

    Differential and axle assembly diagram

    Differential Housing

    Part #66676

    The manufacturer no longer makes this part, and there's no substitute part

  • Nut for Tractor Accessories 66663 - Part 66678

    Differential and axle assembly diagram

    Nut

    Part #66678

    The manufacturer no longer makes this part, and there's no substitute part

  • Bolt for Tractor Accessories 66663 - Part 66675

    Differential and axle assembly diagram

    Bolt

    Part #66675

    The manufacturer no longer makes this part, and there's no substitute part

  • Bolt for Tractor Accessories 66663 - Part 66679

    Differential and axle assembly diagram

    Bolt

    Part #66679

    The manufacturer no longer makes this part, and there's no substitute part

  • Sprct Diff for Tractor Accessories 66663 - Part 66682

    Differential and axle assembly diagram

    Sprct Diff

    Part #66682

    The manufacturer no longer makes this part, and there's no substitute part

  • Differential Bolt for Tractor Accessories 66663 - Part 66677

    Differential and axle assembly diagram

    Differential Bolt

    Part #66677

    The manufacturer no longer makes this part, and there's no substitute part

  • Axle for Tractor Accessories 66663 - Part 66680

    Differential and axle assembly diagram

    Axle

    Part #66680

    The manufacturer no longer makes this part, and there's no substitute part

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

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

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

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.

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

Wiring schematic symbols explained video

Wiring schematic symbols explained video

Learn some of the most common symbols found in a wiring diagram and what they mean.…

Jump-starting a riding lawn mower battery video

Jump-starting a riding lawn mower battery video

Learn how to connect cables safely to jump-start your mower’s battery.…

Parts & More

Dishwasher
Dryer
Electric Range
Gas Wall Oven
Jointer/Planer
Lawn Tractor Attachment
Parts
Side-By-Side Refrigerator