Easy
15-30 minutes
This is a genuine OEM replacement part designed for use with some Husqvarna Trimmers and Brushcutters. This filter is made out of Foam and it is sold individually.
The purpose of this filter is to keep dirt and other small particles from entering the carburetor and engine and causing internal engine damage. Once this type of filter gets clogged or dirty it should be changed (Not Cleaned). This is to prevent restricted air flow and foreign matter from entering the engine.
Oiled Air Filter 537186301
OEM part for: Husqvarna
Part Number: 537186301
$7.46
In Stock
Ships within 1 business day 
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Product Description ?
- Classification: Part
- Weight: 0.01 lbs.
- Shipping: Ships Worldwide
Frequently Purchased Together ?
Compatibility
This part will fit the following 128 machines
Husqvarna
325 LX (2000-10) Trimmer View Diagrams & Manuals
325 LXT (2000-01) Trimmer View Diagrams & Manuals
325 RX (2002-01) Trimmer View Diagrams & Manuals
325 RXT (2002-01) Trimmer View Diagrams & Manuals
325 RDX (2002-01) Trimmer View Diagrams & Manuals
325 RJX (2002-01) Trimmer View Diagrams & Manuals
323 P4 (2002-05) Pole Saw View Diagrams & Manuals
325 P4 X-Series (2001-02) Pole Saw View Diagrams & Manuals
325 P4 X-Series (2002-05) Pole Saw View Diagrams & Manuals
325 P5 X-Series (2002-05) Pole Saw View Diagrams & Manuals
322 C (1999-03) Line Trimmer View Diagrams & Manuals
322 C (2000-04) Line Trimmer View Diagrams & Manuals
322 L (2000-01) Line Trimmer View Diagrams & Manuals
322 L (2000-04) Line Trimmer View Diagrams & Manuals
322 R (106 25 68-62) (1999-03) Line Trimmer View Diagrams & Manuals
325 CX (2000-04) Line Trimmer View Diagrams & Manuals
325 LX (106 25 68-62) (1999-03) Line Trimmer View Diagrams & Manuals
325 LX (2000-01) Line Trimmer View Diagrams & Manuals
325 LX (2000-04) Line Trimmer View Diagrams & Manuals
325 LXT (2000-04) Line Trimmer View Diagrams & Manuals
325 RJX (2000-01) Line Trimmer View Diagrams & Manuals
325 RX (106 25 68-62) (1999-03) Line Trimmer View Diagrams & Manuals
325 E X-Series (2001-01) Edger View Diagrams & Manuals
325 E X-Series (2006-04) Edger View Diagrams & Manuals
323 HE 3 (2005-02) Hedge Trimmer View Diagrams & Manuals
323 HE 3 (2005-09) Hedge Trimmer View Diagrams & Manuals
323 HE 3 (2005-10) Hedge Trimmer View Diagrams & Manuals
323 HE 3 (2007-01) Hedge Trimmer View Diagrams & Manuals
325 HDA 55 X-Series (2003-01) Hedge Trimmer View Diagrams & Manuals
325 HDA 55x (2005-02) Hedge Trimmer View Diagrams & Manuals
325 HDA 55x (2005-09) Hedge Trimmer View Diagrams & Manuals
325 HDA 55x (2005-10) Hedge Trimmer View Diagrams & Manuals
325 HDA 65X (2007-01) Hedge Trimmer View Diagrams & Manuals
325 HE 3 (2001-01) Hedge Trimmer View Diagrams & Manuals
325 HE 3 (2001-05) Hedge Trimmer View Diagrams & Manuals
325 HE 3 X-Series (2003-01) Hedge Trimmer View Diagrams & Manuals
325 HE 3x (2005-02) Hedge Trimmer View Diagrams & Manuals
325 HE 3x (2005-10) Hedge Trimmer View Diagrams & Manuals
325 HE 3X (2007-01) Hedge Trimmer View Diagrams & Manuals
325 HE 4 (2001-01) Hedge Trimmer View Diagrams & Manuals
325 HE 4 (2001-05) Hedge Trimmer View Diagrams & Manuals
325 HE 4 X-Series (2003-01) Hedge Trimmer View Diagrams & Manuals
325 HE 4x (2005-02) Hedge Trimmer View Diagrams & Manuals
325 HE 4x (2005-09) Hedge Trimmer View Diagrams & Manuals
325 HE 4x (2005-10) Hedge Trimmer View Diagrams & Manuals
325 HE 4X (2007-01) Hedge Trimmer View Diagrams & Manuals
HA 850 (2005-10) Hedge Trimmer View Diagrams & Manuals
HA 850 Attachment (2005-09) Hedge Trimmer View Diagrams & Manuals
HA 850 Attachment (2007-01) Hedge Trimmer View Diagrams & Manuals
223L (2006-01) Brushcutter View Diagrams & Manuals
223R (2006-01) Brushcutter View Diagrams & Manuals
322R (1999-03) Brushcutter View Diagrams & Manuals
322R (2000-05) Brushcutter View Diagrams & Manuals
322R (2001-02) Brushcutter View Diagrams & Manuals
323R (2002-01) Brushcutter View Diagrams & Manuals
323R (2004-03) Brushcutter View Diagrams & Manuals
323R (2005-05) Brushcutter View Diagrams & Manuals
323R (2006-04) Brushcutter View Diagrams & Manuals
323R (2007-01) Brushcutter View Diagrams & Manuals
323R (2008-03) Brushcutter View Diagrams & Manuals
323RJ (2002-01) Brushcutter View Diagrams & Manuals
323RJ (2005-05) Brushcutter View Diagrams & Manuals
323RJ (2008-03) Brushcutter View Diagrams & Manuals
325RJX (2005-05) Brushcutter View Diagrams & Manuals
325RJX (2002-01) Brushcutter View Diagrams & Manuals
325RJX (2008-03) Brushcutter View Diagrams & Manuals
325RJX (2000-01) Brushcutter View Diagrams & Manuals
325RX (1999-03) Brushcutter View Diagrams & Manuals
325RX (2000-05) Brushcutter View Diagrams & Manuals
325RX (2008-03) Brushcutter View Diagrams & Manuals
326RJX (2004-03) Brushcutter View Diagrams & Manuals
326RJX (2006-04) Brushcutter View Diagrams & Manuals
326RJX (2007-01) Brushcutter View Diagrams & Manuals
326RX (2004-03) Brushcutter View Diagrams & Manuals
326RX (2006-04) Brushcutter View Diagrams & Manuals
326RX (2007-01) Brushcutter View Diagrams & Manuals
322L (1999-03) Line Trimmer View Diagrams & Manuals
123L (2004-03) String Trimmer View Diagrams & Manuals
323L (2008-03) Light Weight Trimmer View Diagrams & Manuals
323L (2005-05) Trimmer View Diagrams & Manuals
325 P5 (2002-05) X-Series Saw Attachment View Diagrams & Manuals
323 LD (2005-05) Trimmer View Diagrams & Manuals
325 RJ X-SERIES (2000-01) Brushcutter View Diagrams & Manuals
325 HDA65 X-SERIES (2009-03) Hedge Trimmer View Diagrams & Manuals
325 HDA65 X-SERIES (2007-01) Hedge Trimmer View Diagrams & Manuals
323P (2002-05) 4 Saw Attachment View Diagrams & Manuals
323P (2002-01) 4 Saw Attachment View Diagrams & Manuals
323P (2006-07) 4 Pole Pruner View Diagrams & Manuals
323P (2004-06) 4 Pole Pruner View Diagrams & Manuals
325P (2004-06) 5 X-Series View Diagrams & Manuals
325P (2006-07) 5 Pole Pruner View Diagrams & Manuals
325P (2002-05) 4 X-Series Saw Attachment View Diagrams & Manuals
325P (2002-01) 4 X-Series Saw Attachment View Diagrams & Manuals
325P (2001-02) 4 X-Series View Diagrams & Manuals
325 P5 (2002-05) X-Series Saw Attachment View Diagrams & Manuals
326 LDX (2007-01) Trimmer View Diagrams & Manuals
326 LDX (2006-04) Trimmer View Diagrams & Manuals
326 LDX (2004-03) Trimmer View Diagrams & Manuals
326 LS (966763205) (2007-01) Trimmer View Diagrams & Manuals
123 C (2004-03) Trimmer View Diagrams & Manuals
123 LD (2004-03) Trimmer View Diagrams & Manuals
322 E (2001-01) Trimmer View Diagrams & Manuals
322 E (1999-10) Trimmer View Diagrams & Manuals
322 T (2001-02) Trimmer View Diagrams & Manuals
322 T (2000-05) Trimmer View Diagrams & Manuals
323 C (2008-03) Trimmer View Diagrams & Manuals
323 C (2005-05) Trimmer View Diagrams & Manuals
323 C (2002-01) Trimmer View Diagrams & Manuals
323 E (2002-03) Trimmer View Diagrams & Manuals
323 EX Trimmer View Diagrams & Manuals
323 LD (2008-03) Trimmer View Diagrams & Manuals
323 LD (2005-05) Trimmer View Diagrams & Manuals
323 LD (2002-01) Trimmer View Diagrams & Manuals
325 E (2002-03) X-Series View Diagrams & Manuals
325 E (2001-01) X-Series View Diagrams & Manuals
325 E (1999-10) X-Series View Diagrams & Manuals
325 L (2002-01) Trimmer View Diagrams & Manuals
325 LDX (2008-03) Trimmer View Diagrams & Manuals
325 LDX (2005-05) Trimmer View Diagrams & Manuals
325 LDX (2002-01) Trimmer View Diagrams & Manuals
325 TX (2001-02) Trimmer View Diagrams & Manuals
325 TX (2000-05) Trimmer View Diagrams & Manuals
323 LD (2005-05) Trimmer View Diagrams & Manuals
325 P5 (2002-05) X-Series Saw Attachment View Diagrams & Manuals
325 HDA55 (20053600001-20054000000) X-Series Pole Hedge Trimmer View Diagrams & Manuals
325 HDA65 (20090900001-Current) X-Series Pole Hedge Trimmer View Diagrams & Manuals
325 HDA65 (20070100001-20090900000) X-Series Pole Hedge Trimmer View Diagrams & Manuals
325P 4 (20020100001-20021800000) X-Series Saw Attachment View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Trimmer Parts
- Pole Saw Parts
- Saw Parts
- Edger Parts
- Hedge Trimmer Parts
This part replaces obsolete part #: 5038881-01, 503888101
Customer Part Reviews ?
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weedeater parts
fast and easy. thanks
Guest -
September 22, 2021
Verified Purchase
Quick fix
Part fit my weed eater and I’m running again.
Guest -
July 13, 2021
Verified Purchase
Easy shopping on the website
The part was just what I needed. Ez to shop on the website
Guest -
May 12, 2021
Verified Purchase
great part and easy repair
this part was perfect and did the job it was ment too do.
Guest -
October 29, 2019
Verified Purchase
Weed eater parts
Easy to find the part and order!
Guest -
August 17, 2019
Verified Purchase
OLD WEEDEATER WORKS NOW
NEEDED 5 PARTS , GOT ALL 5 AND ALL WORKED.... THANK YOU
Guest -
June 27, 2019
Verified Purchase
Easy repair OEM replacement.
Arrived here quickly and the string trimmer is up and running. Thanks for filling the order so quickly.
Guest -
April 23, 2019
Verified Purchase
Great quality, Great fit, A little pricier than I would like
Great quality, Great fit, A little pricier than I would like.
Guest -
July 2, 2019
Verified Purchase
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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.
Replace worn and missing parts.
Cecil - April 3, 2016
👍 1 of 1 people found this instruction helpful
Tool Type
Blower
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, Wrench Set, None
Piece of cake. Good as new again!
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Trimmer air filter cover fell off and got lost
James - October 2, 2021
Tool Type
Trimmer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, no tools required
1. Removed old air filter
2. Installed new air filter
3. Installed new air filter cover with new thumb screw
2. Installed new air filter
3. Installed new air filter cover with new thumb screw
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Filter was dirty and line cutter had dulled
Richard - June 23, 2019
Tool Type
Trimmer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Socket set
Removed air filter cover and replaced with new foam filter. The line cutter was held on by one bolt and it was an easy fix.
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Gas leak when inverted
Chuck - April 13, 2019
Tool Type
Trimmer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Pliers, Allen wrench
Removed upper cawling
Removed fuel filter
Removed fuel line & bushing
Placed fuel line through bushing and ran it through the port on tank.
Removed fuel filter
Removed fuel line & bushing
Placed fuel line through bushing and ran it through the port on tank.
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Air purge was deteriorated.
Lawrence - September 25, 2018
Tool Type
Trimmer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver
Removed cover pulled out the air purge and replaced it. Installed the air filter.
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Air filter parts came loose and fell off and could not find.
RON - July 26, 2018
Tool Type
Trimmer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, No tools required
Simply installed the parts into the Husquvarna Trimmer. Parts were an exact replacement and everything went perfect. Order to parts delivery time was excellent. Thanks!
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Broken air intake cover and dirty air filter
Michael - June 4, 2018
Tool Type
Trimmer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Socket set, Allen Wrench
Parts Used
Repair was on a Husqvarna Straight Shaft Trimmer
1. Housing cover was removed - 3 allen head screws
2. Cleaned Dirt and Debris from inside housing cover and area around carburetor.
3.Performed routine maintenance / Inspections. Inspected Fuel Lines and primer bulb with cover removed - still serviceable. Replaced Spark Plug. These components are easily accessible with housing cover removed.
4. Removed broken intake cover and snapped a new cover in place.
5. Reapplied light lubricant to linkages
6. Reinstalled housing cover
7. Accessed Air Filter by removing cover - knob type screw.
8. Lightly Oiled and replaced air filter
9. Reinstalled air filter Cover
10. Test run Trimmer - Repair / Maintenance complete.
1. Housing cover was removed - 3 allen head screws
2. Cleaned Dirt and Debris from inside housing cover and area around carburetor.
3.Performed routine maintenance / Inspections. Inspected Fuel Lines and primer bulb with cover removed - still serviceable. Replaced Spark Plug. These components are easily accessible with housing cover removed.
4. Removed broken intake cover and snapped a new cover in place.
5. Reapplied light lubricant to linkages
6. Reinstalled housing cover
7. Accessed Air Filter by removing cover - knob type screw.
8. Lightly Oiled and replaced air filter
9. Reinstalled air filter Cover
10. Test run Trimmer - Repair / Maintenance complete.
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Would not accelerate bogged down
Norman - April 27, 2018
Tool Type
Trimmer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Pliers, Gasket scraper
Simple removal a few screws holding carb down disconnect gas lines disconnect throttle cable install reverse removal steps
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Fuel line had hardened and split. Could not prime carburetor.
Michael - October 22, 2017
Tool Type
Trimmer
Difficulty
Medium
Time
30-60 minutes
Tools Used
, 5/32 hex key
1. Dismantled outer cover and pull rope assembly to allow fuel tank to come loose.
2. Had ordered all fuel lines, fuel filter, primer bubble, and air filter from eReplacementParts, not just the one fuel line that had split.
3. Was a wise choice because another fuel line split during disassembly.
4. Model 322L trimmer fuel filter must first be pulled from fuel tank and cut off before fuel line can be removed. Be careful not to disrupt the rubber bushings in the fuel tank the fuel lines pass through. I had not ordered those. The bushings seal the fuel lines to prevent leaks. Mine didn't leak, but I had known, it would have been a good idea to have ordered the tank bushings as a good measure and reassurance you get no leaks.
5. When replacing all fuel lines remember to make a sketch where each fuel line connects. This is important. I should have listed this first. Two lines go to the carburetor and to go to the primer bubble. Don't trust your memory. Make the sketch.
6. The longer fuel line must be pushed into the tank and brought out the fuel cap opening first before you install the filter. Push the fuel filter and rest of fuel line back into the tank. Some fuel line may have to be trimmed.
7. I replaced the other fuel lines trimming off excess, making sure there were no kinks or pinched segments.
8. I reassembled the fuel tank making sure the tank tabs fit snugly into their respective slots on the trimmer body as well as the pull rope assembly. All the while making sure the fuel lines remained routed properly.
9. Finally I verified none of the fuel lines had come undone and reassembled the outer housing. The carburetor air filter was shipped pre oiled and was easily installed.
10. I installed a new spark plug that I had purchased locally.
Pay attention to the assembly before servicing. Clean your trimmer while it's apart with rags and WD40 or some other oil solvent cleaner.
I started the trimmer and it ran great. No leaks from fuel system. Ready to go.
2. Had ordered all fuel lines, fuel filter, primer bubble, and air filter from eReplacementParts, not just the one fuel line that had split.
3. Was a wise choice because another fuel line split during disassembly.
4. Model 322L trimmer fuel filter must first be pulled from fuel tank and cut off before fuel line can be removed. Be careful not to disrupt the rubber bushings in the fuel tank the fuel lines pass through. I had not ordered those. The bushings seal the fuel lines to prevent leaks. Mine didn't leak, but I had known, it would have been a good idea to have ordered the tank bushings as a good measure and reassurance you get no leaks.
5. When replacing all fuel lines remember to make a sketch where each fuel line connects. This is important. I should have listed this first. Two lines go to the carburetor and to go to the primer bubble. Don't trust your memory. Make the sketch.
6. The longer fuel line must be pushed into the tank and brought out the fuel cap opening first before you install the filter. Push the fuel filter and rest of fuel line back into the tank. Some fuel line may have to be trimmed.
7. I replaced the other fuel lines trimming off excess, making sure there were no kinks or pinched segments.
8. I reassembled the fuel tank making sure the tank tabs fit snugly into their respective slots on the trimmer body as well as the pull rope assembly. All the while making sure the fuel lines remained routed properly.
9. Finally I verified none of the fuel lines had come undone and reassembled the outer housing. The carburetor air filter was shipped pre oiled and was easily installed.
10. I installed a new spark plug that I had purchased locally.
Pay attention to the assembly before servicing. Clean your trimmer while it's apart with rags and WD40 or some other oil solvent cleaner.
I started the trimmer and it ran great. No leaks from fuel system. Ready to go.
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Trimmer was bogging down under a full load (as soon as I would give it gas it wanted to cut out)
George - August 24, 2017
Tool Type
Trimmer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver
Parts Used
I removed the outer cover, and then replaced both the broken cover and the old dirty (ready-oiled) filter.
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Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
