Murray
Front-Engine Lawn Tractor

Model #46378X6B Official Murray lawn tractor

Here are the diagrams and repair parts for Murray 46378X6B lawn tractor, as well as links to manuals and error code tables, if available.

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Parts List

Showing 10 of 284 parts

Snowblower Nut#2

Electrical system Diagram

Nut

Part #15X116
Replaced by #703232
?
Manufacturer substitution
This part replaces 15X116. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
In Stock
$5.38 | 
33% OFF 
MSRP: $8.00
Lawn Tractor Starter Solenoid (replaces 094613MA, 1002004, 1002004MA, 24466, 424285, 53716, 7701100, 7769224)#9

Electrical system Diagram

Solenoid

Part #24285
Replaced by #7701100MA
?
Manufacturer substitution
This part replaces 24285. Substitute parts can look different from the original.
BEST SELLER
In Stock
$25.11 | 
36% OFF 
MSRP: $39.00
Lawn & Garden Equipment Engine Fuel Line Clamp#54

Hood and engine mount Diagram

Clamp

Part #91174
Replaced by #791850
?
Manufacturer substitution
This part replaces 91174. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
In Stock
$4.74 | 
17% OFF 
Phone Price: $5.74
Lawn Tractor Nut#60

Motion drive Diagram

Flange nut

Part #15X79
Replaced by #703409
?
Manufacturer substitution
This part replaces 15X79. Substitute parts can look different from the original.
BEST SELLER
In Stock
$9.27 | 
10% OFF 
Phone Price: $10.27
Lawn & Garden Equipment Cotter Pin#28

Mower housing suspension Diagram

Hairpin pin

Part #31X6
Replaced by #703300
?
Manufacturer substitution
This part replaces 31X6. Substitute parts can look different from the original.
This item is not returnable
In Stock
$6.69 | 
13% OFF 
Phone Price: $7.69
Lawn & Garden Equipment Cotter Pin

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Hairpin pin

Part #31X4
Replaced by #703300
?
Manufacturer substitution
This part replaces 31X4. Substitute parts can look different from the original.
This item is not returnable
In Stock
$6.69 | 
13% OFF 
Phone Price: $7.69
Nut#36

Mower housing Diagram

Nut

Part #15X79Z

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

Washer

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Washer

Part #17X47Z

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

Lawn Tractor Blade Adapter (replaces 092466MA)#76

Mower housing Diagram

Adapter

Part #92466
Replaced by #92466MA
?
Manufacturer substitution
This part replaces 92466. Substitute parts can look different from the original.
In Stock
$11.07
Lawn Tractor Guide Screw

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Screw

Part #91754Z
Replaced by #091754MA
?
Manufacturer substitution
This part replaces 91754Z. Substitute parts can look different from the original.
In Stock
$11.53

Symptoms common to all riding mowers & tractors

Choose a symptom to see related riding mower and lawn tractor repairs.

Main causes: worn or broken blade belt, broken belt idler pulley, blade clutch cable failure, bad PTO switch, damaged mandrel pulleys
Main causes: damaged cutting blade, worn deck pulley, damaged mandrel pulley, loose fasteners on mower deck components
Main causes: faulty battery, bad alternator
Main causes: unlevel mower deck, dull or damaged cutting blades, worn mandrel pulleys, bent mower deck, engine needs tune up
Main causes: worn or broken ground drive belt, bad seat switch, transaxle freewheel control engaged, transaxle failure, dirty carburetor
Main causes: engine overfilled with oil, leaky head gasket or sump gasket, damaged carburetor seals, cracked fuel pump, broken fuel line
Main causes: shift lever needs adjustment, neutral control needs adjustment
Main causes: damaged tie rods, bent or worn wheel spindle, worn front axle, damaged sector gear assembly
Main causes: punctured tire or inner tube, leaky valve stem, damaged wheel rim

Repair guides common to all 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 a riding lawn mower rear tire

Your mower can’t run on a damaged rear tire. Here’s how to install a new one.

Repair difficulty
Time required
 60 minutes or less
How to replace a riding lawn mower blade

If a blade on your mower is dull or bent, replace it following the steps in this repair guide.

Repair difficulty
Time required
 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 difficulty
Time required
 15 minutes or less

Articles and videos common to all 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.

August 06, 2020

How to remove a lawn mower blade using a removal tool

How to remove a lawn mower blade using a removal tool

Learn how a blade removal tool makes replacing the blade easier and safer

April 09, 2019

Riding mower parts and supplies to stock up on video

Riding mower parts and supplies to stock up on video

Keep these 6 things on hand to keep the mower season running smoothly.

March 01, 2016

Charging a battery in a riding lawn mower video

Charging a battery in a riding lawn mower video

Learn how to use a battery charger if your mower battery is dead.