Gas Chainsaw

Model # 450 Official Husqvarna chainsaw

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

By Schematic
SELECT DIAGRAM
?

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

Browse Parts for
450 Chainsaws
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
In Stock
Tank Cap Assembly 544111201
Tank cap assembly

Part #544111201

Replaced by #544111203

?
Manufacturer substitution
This part replaces 544111201. Substitute parts can look different from the original.
$10.87
16% OFF Phone Price : $12.87
In Stock
Cover Gear C 540063301
#4

Chain brake & clutch cover diagram

Cover gear c

Part #540063301

In Stock
Chainsaw Oil Pump Cylinder 537154801
#7

Clutch & oil pump diagram

Chainsaw oil pump cylinder

Part #537154801

This item is not returnable
In Stock
Chain Assembly 544097901
#1

Chain brake & clutch cover diagram

Chain assembly

Part #544097901

Replaced by #536329403

?
Manufacturer substitution
This part replaces 544097901. Substitute parts can look different from the original.
In Stock
Chainsaw Primer Hose 544401901
#12

Carburetor & air filter diagram

Chainsaw primer hose

Part #544401901

Replaced by #534138001

?
Manufacturer substitution
This part replaces 544401901. Substitute parts can look different from the original.
In Stock
Pin 3x26 Tho 720182520
#3

Fuel tank diagram

Pin 3x26 tho

Part #720182520

This item is not returnable
In Stock
Craftsman Carburetor Screw 503210750
#15

Carburetor & air filter diagram

Craftsman carburetor screw

Part #503210750

This item is not returnable
In Stock
Craftsman Gasket Kit 502080201
#37

Carburetor diagram

Craftsman gasket kit

Part #502080201

In Stock
Chainsaw Clutch 537110503
#1

Clutch & oil pump diagram

Chainsaw clutch

Part #537110503

In Stock

Symptoms for gas chainsaws

Choose a symptom to see related chainsaw repairs.

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

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

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

Repair guides for gas chainsaws

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

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…

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…

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…

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.

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.…

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.…