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MTD 673 lawn tractor Parts
Here are the diagrams and repair parts for MTD 673 lawn tractor, as well as links to manuals and error code tables, if available.
Owner’s manualBy Schematic
By Part
SELECT DIAGRAM
Browse Parts for 673 Riding Mowers & Tractors
Transmission diagram
Jam Nut
Part #712-0273Replaced by #912-0273
Manufacturer substitutionThis part replaces 712-0273. Substitute parts can look different from the original.This item is not returnableIn Stock$8.43
Qty
Transmission diagram
Retainer Ring
Part #716-0171Replaced by #916-0171
Manufacturer substitutionThis part replaces 716-0171. Substitute parts can look different from the original.This item is not returnableIn Stock$32.72QtyDeck "h" diagram
Lawn Mower Blade
Part #742-0645Get free shipping with Automatic ReorderReplaced by #942-0645
Manufacturer substitutionThis part replaces 742-0645. Substitute parts can look different from the original.In Stock$55.72QtyFrame and seat diagram
Fuel Tank
Part #751-0553Replaced by #751-0555D
Manufacturer substitutionThis part replaces 751-0553. Substitute parts can look different from the original.In Stock$159.30QtySteering diagram
Jam Nut
Part #712-0240Replaced by #912-0240
Manufacturer substitutionThis part replaces 712-0240. Substitute parts can look different from the original.This item is not returnableIn Stock$6.5013% OFF Phone Price : $7.50
QtyTransmission diagram
Needle Bearing
Part #741-0335Replaced by #941-0335
Manufacturer substitutionThis part replaces 741-0335. Substitute parts can look different from the original.This item is not returnableIn Stock$28.0518% OFF Phone Price : $34.05QtyLift diagram
Lift Link
Part #17712Replaced by #17712-0637
Manufacturer substitutionThis part replaces 17712. Substitute parts can look different from the original.In Stock$37.04QtyGrille/ hood and fender diagram
Throttle Wire
Part #746-0776Replaced by #946-0638
Manufacturer substitutionThis part replaces 746-0776. Substitute parts can look different from the original.In Stock$15.89QtyDeck "g" diagram
Belt Guard
Part #783-0149Replaced by #783-0149B-0637
Manufacturer substitutionThis part replaces 783-0149. Substitute parts can look different from the original.In Stock$59.709% OFF Phone Price : $65.70QtyDeck "h" diagram
Belt
Part #754-0439Get free shipping with Automatic ReorderReplaced by #954-0439
Manufacturer substitutionThis part replaces 754-0439. Substitute parts can look different from the original.In Stock$71.128% OFF Phone Price : $77.12Qty
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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