Part Location Diagram of 503818004 Husqvarna Air Filter - Felt
See part A-20 in the diagram
( Grid squares measure 1x1 inch )

Air Filter - Felt 503818004

Manufactured by:
Husqvarna
ERP Number:
ERP8997150
Part Number:
503818004
Original Equipment Manufacturer ?
In Stock
Delivers in 3-5 Business Days!

Easy 

Less than 15 mins 

(2 rated repairs) ?

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Product Description

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This replacement air filter is supplied by the original equipment manufacturer for use with Husqvarna chainsaws. Its purpose is to remove dust and other harmful contaminants from the air that goes through the unit, over time it will get clogged eventually requiring a replacement to ensure the proper air flow. This high-quality filter is made of felt material and it is sold individually.

Troubleshooting

This part works with the following brands:
  • Husqvarna
This part works with the following products:
  • Chainsaw
Part# 503818004 replaces these:
503818001,

Customer Part Reviews

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Customer Repair Instructions

All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.

Easy 

Less than 15 mins 

(2 rated repairs) ?
  • 1
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I had to replace the initiation, c.saw was not firing. While I was replacing the ignition, I replaced the pull rope, air filter and spark plug.

David from Green Cove Springs, Florida

2 of 2 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers, Socket set
Parts Used:
544047101, 503818004, 501201502
Actually this was the second time into this repair. I had purchased an \"aftermarket\" ignition previously, big mistake. Another lesson learned, ALWAYS USE PROPER REPAIR PARTS. It will save a lot of time and make your repair jobs go much smoother. FYI - The saw is a Husqvarna 372, 24\" Bar

I simply removed cover that holds t he pull rope and gained access to the ignition area. Tightening down the new ignition while maintaining a gap between the ignition and the \"flywheel\", using a business card.
I used the vice grips to hold the tightened spring in place while replacing the pull rope, I find it makes it easier to replace the rope, you just have to be careful not to put too much pressure on the vice grips because the reel that holds the rope is plastic, although a very tough plastic, it\'s still plastic. Put it all back together.
Pulled the rope and was ready to start cutting. Runs like a new saw!

I have had this saw for at least 10 years, it was purchased with a group of saws at a pawn shop. I think I got at least 10 different saws for under $1,000,00. There were two of these saws in the \"package\". This one saw has been worth the amount paid for all, it is used quite a lot and with the PROPER repair parts will be used a lot more.

Thanks, I\'ll be back
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Air filter plugged. Clutch cover was broken.

Donald from Hauser, Idaho

1 person found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers, Socket set
Parts Used:
537033507, 503818004
Clutch cover replacement:
1. Backed-off the chain tensioner adjusting screw.
2. Remove the two nuts holding the clutch cover onto the engine.
3. Removed the clutch cover.
4. Put new cover in place and installed the clutch cover nuts being careful to align the chain tensioner pin.
5. When the cover nuts are sn ug, tighten the chain tensioner screw.
6. Tighten cover nuts.
7. Run saw for a minute then re-tension the chain.

Replace air filter:

1. Go into kitchen and have a cup of coffee.
2. With saw on work bench use a flat tip screwdriver to un-snap the plastic air filter cover retainers.
3. Remove air filter cover. Set aside.
4. Remove air filter by unscrewing the thumbscrew. If thumbscrew is too tight you may need a flat tip screwdriver or a pair of duck bill pliers to loosen it.
5. Using a cleaning brush clean all debris away from the air filter where it attaches to the engine.
6. Remove old air filter.
7. Remove thumbscrew from old filter and put it in the new filter.
8. Place filter on engine and tighten thumbscrew.
9. Replace the air filter cover and secure it by snapping the plastic retainers into position.
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Model Cross Reference

This part works with the following models:
ERP Number: ERP8997150
Manufacturer Part Number: 503818004
Brand Model Number Description
Husqvarna 345RX Brush Cutter - 345 Rx
Husqvarna 356BF Leaf Blower / Vacuum - 356 Bf (20044000001-20144899999)
Husqvarna 362 Chainsaw - Chainsaw
Husqvarna 362EPA Chainsaw - Chainsaw
Husqvarna 362SPECIAL Chainsaw - Husqvarna Chainsaw Model 362SPECIAL/1999-11 (362SPECIAL/199911, 362SPECIAL/1999 11) Parts
Husqvarna 362SPECIALEPA Chainsaw - Husqvarna Chainsaw Model 362SPECIALEPA/1999-11 (362SPECIALEPA/199911, 362SPECIALEPA/1999 11) Parts
Husqvarna 362XP Chainsaw - 362 Xp (19991900001-20013999999)
Husqvarna 365 Chainsaw - Chainsaw
Husqvarna 365EPA Chainsaw - Chainsaw
Husqvarna 365SP Chainsaw - Chainsaw
Husqvarna 365SPECIAL Chainsaw - Husqvarna Chainsaw Model 365SPECIAL/2003-11 (365SPECIAL/200311, 365SPECIAL/2003 11) Parts
Husqvarna 365SPECIALEPA Chainsaw - Husqvarna Chainsaw Model 365SPECIALEPA/2002-01 (365SPECIALEPA/200201, 365SPECIALEPA/2002 01) Parts
Husqvarna 371 Chainsaw - Chainsaw
Husqvarna 371EPA Chainsaw - Chainsaw
Husqvarna 371XP Chainsaw - Chain Saw
Husqvarna 371XPEPA Chainsaw - Chainsaw
Husqvarna 372 Chainsaw - Chainsaw
Husqvarna 372EPA Chainsaw - Chainsaw
Husqvarna 372X Chainsaw - Husqvarna Chainsaw Model 372X Parts
Husqvarna 372XP Chainsaw - XPX-TORQ Chain Saw
Husqvarna 372XP-372XPG Chainsaw - 372 Xp® / 372 Xp® G / 372 Xp® W / 372 Xp® Gw
Husqvarna 372XP-XPG Chainsaw - Chainsaw
Husqvarna 372XP/ Chainsaw - 372 Xp/Xpg (19994500001-20014000000)
Husqvarna 372XPEPA Chainsaw - Chainsaw
Husqvarna 372XPW Chainsaw - 372 Xpw (Epa) (2007-01)
Husqvarna 372XPWEPA Chainsaw - Husqvarna Chainsaw Model 372XPWEPA Parts
Husqvarna 372XPX-TORQ Chainsaw - Chain Saw