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Husqvarna
Gas Chainsaw

Model # 450E Official Husqvarna chainsaw

Here are the diagrams and repair parts for Official Husqvarna 450E chainsaw, as well as links to manuals and error code tables, if available.

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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 179 parts  |
Craftsman Lawn & Garden Equipment Engine Spark Plug (replaces 585358201, 952030150) 503235111
#10

Cylinder piston diagram

Craftsman lawn & garden equipment engine spark plug (replaces 585358201, 952030150)

Part #503235111

This item is not returnable
$7.20 | 
12% OFF Phone Price : $8.20
In Stock
Ignition Module 573935701
#7

Ignition system diagram

Ignition module

Part #573935701

Replaced by #573935702

?
Manufacturer substitution
This part replaces 573935701. Substitute parts can look different from the original.
$86.69
In Stock
Eclip 735310820
#2

Chain brake & clutch cover diagram

Eclip

Part #735310820

Replaced by #530038593

?
Manufacturer substitution
This part replaces 735310820. Substitute parts can look different from the original.
This item is not returnable
$7.40
In Stock
Chainsaw Clutch (replaces 503873072) 578097901
#3

Clutch & oil pump diagram

Chainsaw clutch (replaces 503873072)

Part #578097901

$35.75 | 
14% OFF Phone Price : $41.75
In Stock
Chainsaw Knee Joint Assembly 503890802
#6

Chain brake & clutch cover diagram

Chainsaw knee joint assembly

Part #503890802

$28.89
In Stock
Chainsaw Oil Pump Cylinder 537154801
#7

Clutch & oil pump diagram

Chainsaw oil pump cylinder

Part #537154801

This item is not returnable
$18.57
In Stock
Craftsman Chainsaw Chain Brake Assembly 537043001
#12

Chain brake & clutch cover diagram

Craftsman chainsaw chain brake assembly

Part #537043001

This item is not returnable
$27.86
In Stock
Cover Gear C 540063301
#4

Chain brake & clutch cover diagram

Cover gear c

Part #540063301

$9.26
In Stock
Chainsaw Oil Pump 540057901
#6

Clutch & oil pump diagram

Chainsaw oil pump

Part #540057901

This item is not returnable
$13.00
In Stock
Chainsaw Carburetor 506450401
Chainsaw carburetor

Part #506450401

Replaced by #531215601

?
Manufacturer substitution
This part replaces 506450401. Substitute parts can look different from the original.
$57.80
In Stock

Symptoms for gas chainsaws

Choose a symptom to see related chainsaw repairs.

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What should I do if my chainsaw leaks gas?

Main causes: cracked fuel lines, leaky carburetor seals, damaged fuel tank cap, cracked fuel tank…

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Why does my chainsaw run roughly?

Main causes: bad gas, engine needs tune up, cracked fuel lines, dirty carburetor…

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Why won't my chainsaw start?

Main causes: stale gasoline, cracked fuel lines, dirty carburetor, damaged spark plug, worn piston rings…

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Repair guides for gas chainsaws

These step-by-step repair guides will help you safely fix what’s broken on your chainsaw.

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How to rebuild a chainsaw carburetor

How to rebuild a chainsaw carburetor

If your chainsaw isn't running well, a dirty carburetor could be the problem. You can take it apart, clean it and rebuil…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a chainsaw carburetor

How to replace a chainsaw carburetor

If the engine won't start even though there's fuel in the chainsaw, the carburetor could be the problem. Sometimes, it's…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace chainsaw fuel lines

How to replace chainsaw fuel lines

The fuel line on a chainsaw becomes brittle over time and can crack. Replacing it doesn't require a lot of DYI experienc…

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Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your chainsaws

Use the advice and tips in these articles and videos to get the most out of your chainsaw.

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What are the most common replacement parts for chainsaws?

What are the most common replacement parts for chainsaws?

Learn about the most common replacement parts for chainsaws and how they can help you fix chainsaw problems.…

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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.…

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