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Repair Parts Home  Power Tool Parts  Husqvarna Parts  503936601 Air Purge

Air Purge

Part Number: 503936601
Husqvarna
Availability: 25+ in stock
Price: $11.39
Quantity:
Ships within 1 business day
Description:
Genuine Husqvarna replacement part, this part is sold individually.
The 503939601 Air Purge does just what the part name says.
It purges the air out of the carburetor.
Then it forces fuel from the fuel tank and fuel line in to the carburetor.
Product Information
Manufacturer: Husqvarna
Product Number: 503936601
Classification: Part
Weight: 0.01 lbs.
Also Known As: Purge Bulb, Plunger, Purge Bubble, Purger Bulb, Primer Bulb
Shipping: Ships Worldwide
Related Products
Hose
Hose
$3.99
Compatibility

This part is compatible with the following machines:

Husqvarna
435 (2008-05) Chainsaw
435 (2008-05) Chainsaw
435 E (2008-05) Chainsaw
435 E (2008-05) Chainsaw
440 E (2008-05) Chainsaw
440 E (2008-05) Chainsaw
445 (2007-03) Chainsaw
445 (2007-03) Chainsaw
445 (2007-09) Chainsaw
445 (2007-09) Chainsaw
445 E (2007-03) Chainsaw
445 E (2007-03) Chainsaw
445 E (2007-09) Chainsaw
445 E (2007-09) Chainsaw
450 E (2007-03) Chainsaw
450 E (2007-03) Chainsaw
450 E (2007-09) Chainsaw
450 E (2007-09) Chainsaw
455 E (2007-01) Chainsaw
455 E (2007-01) Chainsaw
455 E (2006-06) Chainsaw
455 E (2006-06) Chainsaw
455 (2004-10) Chainsaw
455 (2004-10) Chainsaw
455 (2005-01) Chainsaw
455 (2005-01) Chainsaw
455 (2005-03) Chainsaw
455 (2005-03) Chainsaw
455 Rancher (2006-02) Chainsaw
455 Rancher (2006-02) Chainsaw
455 (2006-06) Chainsaw
455 (2006-06) Chainsaw
455 (2007-01) Chainsaw
455 (2007-01) Chainsaw
460 (2005-03) Chainsaw
460 (2005-03) Chainsaw
460 (2006-02) Chainsaw
460 (2006-02) Chainsaw
460 (2006-06) Chainsaw
460 (2006-06) Chainsaw
460 (2007-01) Chainsaw
460 (2007-01) Chainsaw
334 T (2003-05) Chainsaw
334 T (2003-05) Chainsaw
334 T (2003-11) Chainsaw
334 T (2003-11) Chainsaw
334 T (2004-01) Chainsaw
334 T (2004-01) Chainsaw
334 T (2005-03) Chainsaw
334 T (2005-03) Chainsaw
334 T (2006-01) Chainsaw
334 T (2006-01) Chainsaw
334 T (2006-09) Chainsaw
334 T (2006-09) Chainsaw
338 XPT (2003-05) Chainsaw
338 XPT (2003-05) Chainsaw
338 XPT (2003-11) Chainsaw
338 XPT (2003-11) Chainsaw
338 XPT (2004-01) Chainsaw
338 XPT (2004-01) Chainsaw
338 XPT (2005-03) Chainsaw
338 XPT (2005-03) Chainsaw
338 XPT (2006-01) Chainsaw
338 XPT (2006-01) Chainsaw
338 XPT (2006-09) Chainsaw
338 XPT (2006-09) Chainsaw
340 (2005-05) Chainsaw
340 (2005-05) Chainsaw
340 (2006-06) Chainsaw
340 (2006-06) Chainsaw
340 (2007-01) Chainsaw
340 (2007-01) Chainsaw
340 E (2005-05) Chainsaw
340 E (2005-05) Chainsaw
340 E (2006-06) Chainsaw
340 E (2006-06) Chainsaw
345 (2007-01) Chainsaw
345 (2007-01) Chainsaw
345 E (2005-05) Chainsaw
345 E (2005-05) Chainsaw
345 E (2006-06) Chainsaw
345 E (2006-06) Chainsaw
346 XP (2007-08) Chainsaw
346 XP (2007-08) Chainsaw
350 (2005-05) Chainsaw
350 (2005-05) Chainsaw
350 (2006-06) Chainsaw
350 (2006-06) Chainsaw
350 (2007-01) Chainsaw
350 (2007-01) Chainsaw
350 EPA (2006-06) Chainsaw
350 EPA (2006-06) Chainsaw
353 (2007-08) Chainsaw
353 (2007-08) Chainsaw
225 BX (2001-06) Blower
225 BX (2006-09) Blower
225 HBV (2000-01) Blower
356 BF (2004-10) Blower
356 BT (2004-10) Blower
325 LX (2000-10) Trimmer
325 LX (2001-01) Trimmer
325 LXT (2000-01) Trimmer
325 RX (2002-01) Trimmer
326 C (2001-03) Trimmer
326 L (2001-03) Trimmer
326 LX (2001-03) Trimmer
325 RXT (2002-01) Trimmer
325 RDX (2002-01) Trimmer
325 RJX (2002-01) Trimmer
323 P4 (2002-05) Pole Saw
323 P4 (2002-05) Pole Saw
325 P4 X-Series (2001-02) Pole Saw
325 P4 X-Series (2001-02) Pole Saw
325 P4 X-Series (2002-05) Pole Saw
325 P4 X-Series (2002-05) Pole Saw
325 P5 X-Series (2002-05) Pole Saw
325 P5 X-Series (2002-05) Pole Saw
326 P4 (2002-05) Pole Saw
326 P4 (2002-05) Pole Saw
326 P4 (2004-06) Pole Saw
326 P4 (2004-06) Pole Saw
326 P4 (2006-07) Pole Saw
326 P4 (2006-07) Pole Saw
326 P4 X-Series (2001-09) Pole Saw
326 P4 X-Series (2001-09) Pole Saw
326 P4 X-Series (2002-05) Pole Saw
326 P4 X-Series (2002-05) Pole Saw
326 P5 X-Series (2002-05) Pole Saw
326 P5 X-Series (2002-05) Pole Saw
326 P5 X-Series (2006-07) Pole Saw
326 P5 X-Series (2006-07) Pole Saw
326 P5X (2004-06) Pole Saw
326 P5X (2004-06) Pole Saw
227 L (1999-09) Line Trimmer
227 LD (1999-09) Line Trimmer
227 R (1999-09) Line Trimmer
227 RD (1999-09) Line Trimmer
232 L (2000-04) Line Trimmer
240 L (2000-04) Line Trimmer
322 C (1999-03) Line Trimmer
322 C (2000-04) Line Trimmer
322 L (2000-01) Line Trimmer
322 L (2000-04) Line Trimmer
322 R (106 25 68-62) (1999-03) Line Trimmer
325 CX (2000-04) Line Trimmer
325 LX (106 25 68-62) (1999-03) Line Trimmer
325 LX (2000-01) Line Trimmer
325 LX (2000-04) Line Trimmer
325 LXT (2000-04) Line Trimmer
325 RJX (2000-01) Line Trimmer

Products Compatibility

This item works with the following types of products:

  • • Blower
  • • Chain Saw
  • • Pole Saw
  • • Saw
  • • Trimmer
Questions & Answers

No questions have been asked yet
Repair Instructions: Submitted by Customers Like You
30 of 31 people found this instruction helpful
Tool Type:
Chain Saw
Parts Used:
Air Purge - 503936601
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Pliers
Air purge was cracked
Remove top cowl from saw --- remove air filter from carburetor --- disconnect fuel lines from purge with pliers --- remove damaged purge by pinching keeper tabs --- snap new purge in place --- connect fuel lines --- install air filter & cowl --- voila'
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5 of 5 people found this instruction helpful
Tool Type:
Trimmer
Parts Used:
Air Purge - 503936601
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver, Allen wrench
Air purge cracked due to age.
Removed engine cover.
Used small screw driver to depress the tabs on air purge.
Pulled off both fuel lines from air purge, paying attention to which one connected where.
Attached fuel lines to new air purge and snapped it in place.
It was a very easy and straightforward repair.
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5 of 5 people found this instruction helpful
Tool Type:
Chain Saw
Parts Used:
Air Purge - 503936601
Fuel Tank Bushing - 580457501
Chain Catcher - 503910671
Fuel Hose/38mm - 537042402
Hose - 537042408
Screen - 537252301
Fuel Hose - 591375201
Repair Difficulty:
Hard
Time Spent Repairing:
1-2 hours
Tools Used:
Screwdriver, Pliers, Nutdriver, Two picks, one straight, one 90 degrees, knife
Prime bulb return line dry rotted, leaking gas.
1. Remove chain and bar( for easy maneuverability), empty gas in tank, then top cover, followed by handle and throttle grip. The throttle has to be disconnected from carb, and you have to spin the linkage to remove because it does not come straight out.
2. You can choose to remove carb, I was able to do repair without removing, probably more difficult, but might have saved a little time. I removed return line and fuel lines and prime bulb from saw, followed by grommets. To remove fuel line you have to open gas tank and pull out filter and fuel line with your 90 degree pick. Remove filter and hose, replace with new.
3. When I replaced grommets and hose, I put a little oil on them to make things go on a little easier. I found it is easier to install grommets on hose first and then install grommets on saw. You can always push and pull hose through.
4. Once all hoses are on and secure, reinstall your filter on line and replace inside tank. I cut about two inches off the tank line before installing filter, just because it seemed a little long, your choice. I only had one line that was bad, but I figured while I was replacing one, might as well do them all, the others are probably going to fail soon.
5. In order to replace exhaust screen, you will have to remove chain break handle, two hex head bolts, slide screen out, slide new one in and done.
6. Once installed, I reassembled everything in the reverse order it come out. Chain brake handle, main handle then throttle cover, remember to install throttle linkage, you have to spin it to get back next to the carb, this can be a little tedious, but make sure it is where it needs to go before bolting main handle on, or you have to take it apart again(my mistake).
7. After throttle cover, replace your top cover, and chain and bar, add gas and your good to go.
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3 of 3 people found this instruction helpful
Tool Type:
Trimmer
Parts Used:
Air Purge - 503936601
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
, allen wrench
Would not start cracked air purge bulb
Removed rope starter mechanism to gain access to air purge.
Note the purge bulb is clocked so it will only seat in one direction.
reassembled.
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2 of 3 people found this instruction helpful
Tool Type:
Trimmer
Parts Used:
Air Purge - 503936601
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver, Socket set, Wrench Set
Leaking gas, and would not run for a full min.
Pulled starter recoil
Pulled bottom plate
Removed gas tank
Removed fuel line and air purge line
Replaced purge bubble
Reinstalled all other parts
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1 of 1 people found this instruction helpful
Tool Type:
Trimmer
Parts Used:
Air Purge - 503936601
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Pliers
Primer punctured
1. Removed screws for the frame
2. Pulled out old primer
3. Removed two fuel lines
4. Placed in the new primer and connected both fuel lines
5. Placed frame back on and screwed in.
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1 of 1 people found this instruction helpful
Tool Type:
Trimmer
Parts Used:
Air Purge - 503936601
Spring - 537011301
Throttle Cable - 544171701
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
Nutdriver, Star bit
Purge cracked would not prime, upon inspection throttle cable appeared severely frayed near the carb, after removing throttle cable, spring was found broken
The purge is fairly simple to replace, it's kinda like a snap tight. I broke the old one taking it off, which informed to be careful putting the new one in. I put a little lithium white on the two ears that snap it into place. That helped go in without me putting to much muscle on it. The throttle cable and spring was not so simple and requires a bit of patience. The main thing is pay close attention to how you take it apart. Everything has its place it just may take a moment to figure it out. I advise that if you need to replace the cable, buy the spring as well. Even if it's not broken that way you can leave it assembled till your parts come in and taking it apart is fresh on your mind.
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Tool Type:
Trimmer
Parts Used:
Air Purge - 503936601
Repair Difficulty:
Medium
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Pliers, Nutdriver
Air purge pump bulb hardened and split open
1. Removed to top casing to completely expose the air purge pump.
2. Disconnected the two fuel lines from the broken air purge pump.
3. Removed the air purge pump by depressing the snap in bottom with a flat edge screw driver.
4. Positioned the new air purge pump to align with the two fuel lines and made the connection.
5. Being careful not to disconnect the fuel lines, aligned the air purge pump with the snap in cut- outs and pushed into place.
6. Depressed the air purge pump to be sure it worked.
7. Re-installed the top assembly.

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Tool Type:
Trimmer
Parts Used:
Fuel Hose - 581756201
Air Purge - 503936601
Fuel Tank Bushing - 580457501
Hose - 537042401
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Pliers, Allen wrench
fuel lines and air purge old and brittle ('09) Husqvarna 223L Trimmer
Removed starter assy housing ( 3allen screws ) just for easier accessability , removed top cover ( 1 allen screw ) - took picture of three fuel lines (routing) - simply removed and replaced all above items mentioned . RUNS GREAT ! Cheaper than buying a new trimmer !
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Tool Type:
Trimmer
Parts Used:
Curved Shaft Assembly - 000998229
Air Purge - 503936601
Repair Difficulty:
Medium
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Pliers, Nutdriver, Allen wrenches
Drive shaft broke on one trimmer and air pump for fuel line leaked for other trimmer.
Air pump on Husquavarna:
1. Remove side cover and fuel lines from air pump.
2. With screwdriver, push in tab on rear of pump to release from frame.
3. Align new pump in frame and snap into place.
4. Use needle nose pliers to carefully attach fuel lines.
5. Press air pump bulb 3 or 4 times to check for leaks.
6. Reinstall side cover.

Drive shaft on Homelite:
1. Remove trimmer head assembly on end of shaft.
2. Remove safety guard from end of shaft.
3. Remove handle from shaft.
4. Remove throttle assembly from shaft noting how the linkage fits back in casing.
5. Remove clamp noting location.
6. Remove shaft assembly from engine.
7. Install new shaft and tighten clamp in same location as removed. You may need to turn end of the shaft so the new drive shaft slides into engine.
8. Install throttle assembly assuring throttle linkage works as you assemble.
9. Replace handle and safety guard on shaft.
10. Replace trimmer head.
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Discussion
Discussion for Air Purge - ( 503936601 )
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Reviews
4.8
Average Rating (out of 5):
6 Reviews
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    Great condition, arrived quickly and fit perfect. Weedeater runs great!
    Guest - 0 days ago Verified Purchase
    Good quality, quick delivery
    It was as good if not better than the factory part, and fit perfect.
    Guest - 13 days ago Verified Purchase
    Great experience
    Part was quickly shipped and arrived exactly as described. great service!
    WILLIAM - 19 days ago Verified Purchase
    Chainsaw works!
    Just what I needed.
    Guest - May 21, 2019 Verified Purchase
    Over priced
    Over priced for what it is. Can get one from the local home center for about half the cost here.
    Guest - May 4, 2019 Verified Purchase
    The part was correct and worked well, BUT ...
    I ordered these parts several weeks ago and they never came in. I ended up calling and the guy told me that one of the parts was on back order ! I cancelled the back ordered part and requested to send the rest of my order. I'm glad SOMEONE took the initiative to communicate !
    Guest - May 16, 2019 Verified Purchase
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