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Repair Parts Home  Power Tool Parts  Poulan Parts  530047721 Purge Bulb

Purge Bulb

Part Number: 530047721
PoulanWeed EaterHusqvarna
Availability: 25+ in stock
Price: $4.55
Quantity:
Ships within 1 business day
Description:
This is a genuine OEM replacement part, it is sold individually.
By pressing on the Purge Bulb, it will force fuel into the fuel line from the fuel tank into the carburetor.
Once the carburetor is full of fuel, the excess fuel will be purged back into the tank in the fuel return line.

Over time the primer will lose its elasticity or crack and need to be replaced.

We have an article and video on

Product Information
Manufacturer: Poulan, Weed Eater, Husqvarna
Product Number: 530047721
Classification: Part
Weight: 0.01 lbs.
Also Known As: Air Purge, Plunger, Purge Bubble, Purger Bulb, Primer Bulb
Shipping: Ships Worldwide
Repair Guides
Articles:
How to Replace a Primer Bulb
Replacing primer bulbs in small engines is one of the most common types of tool repairs, and this article explains profe...
June 25, 2010
How to Replace the Primer Bulb on a Poulan Chainsaw (Model P3314)
Primer not priming? Learn to quickly remove and install the purge bulb on your Poulan chainsaw. Step-by-step instruction...
October 28, 2016
Related Products
Compatibility

This part is compatible with the following machines:

Poulan
P3314 Type 1 Gas Chain Saw
P3314 Type 1 Gas Chain Saw
P3314 Type 2 Gas Chain Saw
P3314 Type 2 Gas Chain Saw
P3314WS Type 1 Gas Chain Saw
P3314WS Type 1 Gas Chain Saw
P3314WS Type 2 Gas Chain Saw
P3314WS Type 2 Gas Chain Saw
P3314WSA Type 1 Gas Chain Saw
P3314WSA Type 1 Gas Chain Saw
P3314WSA Type 2 Gas Chain Saw
P3314WSA Type 2 Gas Chain Saw
P3416 Type 1 Gas Chain Saw
P3416 Type 1 Gas Chain Saw
P3416 Type 2 Gas Chain Saw
P3416 Type 2 Gas Chain Saw
P3516PR Type 1 Gas Chain Saw
P3516PR Type 1 Gas Chain Saw
P3516PR Type 2 Gas Chain Saw
P3516PR Type 2 Gas Chain Saw
P3818AV Type 1 Gas Chain Saw
P3818AV Type 1 Gas Chain Saw
P3818AV Type 2 Gas Chain Saw
P3818AV Type 2 Gas Chain Saw
P4018 Gas Chain Saw
P4018 Gas Chain Saw
P4018AV Type 1 Gas Chain Saw
P4018AV Type 1 Gas Chain Saw
P4018AV Type 2 Gas Chain Saw
P4018AV Type 2 Gas Chain Saw
P4018AV-BH Type 1 Gas Chain Saw
P4018AV-BH Type 1 Gas Chain Saw
P4018AV-BH Type 2 Gas Chain Saw
P4018AV-BH Type 2 Gas Chain Saw
P4018WM Type 1 Gas Chain Saw
P4018WM Type 1 Gas Chain Saw
P4018WM Type 2 Gas Chain Saw
P4018WM Type 2 Gas Chain Saw
P4018WT Type 1 Gas Chain Saw
P4018WT Type 1 Gas Chain Saw
P4018WT Type 2 Gas Chain Saw
P4018WT Type 2 Gas Chain Saw
P4018WTL Gas Chain Saw
P4018WTL Gas Chain Saw
PP3516 Type 2 Gas Chain Saw
PP3516 Type 2 Gas Chain Saw
PP3816 Type 2 Gas Chain Saw
PP3816 Type 2 Gas Chain Saw
PP3816AV Type 2 Gas Chain Saw
PP3816AV Type 2 Gas Chain Saw
PP4018 Type 2 Gas Chain Saw
PP4018 Type 2 Gas Chain Saw
PP4218AV Type 2 Gas Chain Saw
PP4218AV Type 2 Gas Chain Saw
PP4218AVHD Type 2 Gas Chain Saw
PP4218AVHD Type 2 Gas Chain Saw
PP4218AVL Type 2 Gas Chain Saw
PP4218AVL Type 2 Gas Chain Saw
PPB3416 Type 2 Gas Chain Saw
PPB3416 Type 2 Gas Chain Saw
PPB4018 Type 2 Gas Chain Saw
PPB4018 Type 2 Gas Chain Saw
S1970 Type 1 Gas Chain Saw
S1970 Type 1 Gas Chain Saw
S1970 Type 2 Gas Chain Saw
S1970 Type 2 Gas Chain Saw
SM4218AV Type 2 Gas Chain Saw
SM4218AV Type 2 Gas Chain Saw
PP035 Gas Trimmer
PP031 Gas Trimmer
PP033 Gas Trimmer
PP036 Gas Trimmer
PP131 Gas Trimmer
PP135 Gas Trimmer
PP136 Gas Trimmer
PP136E Type 1 Gas Trimmer
PP136E Type 2 Gas Trimmer
PP331 Gas Trimmer
PP336 Gas Trimmer
PPB100 Gas Trimmer
PPB100E Type 1 Gas Trimmer
PPB100E Type 2 Gas Trimmer
PPB150E Type 1 Gas Trimmer
PPB150E Type 2 Gas Trimmer
PPB200 Gas Trimmer
PPB200E Type 1 Gas Trimmer
PPB200E Type 2 Gas Trimmer
PPB250E Type 1 Gas Trimmer
PPB250E Type 2 Gas Trimmer
PPB300 Gas Trimmer
PPB300E Type 1 Gas Trimmer
PPB300E Type 2 Gas Trimmer
PPB32SST Type 1 Gas Trimmer
PPB32SST Type 2 Gas Trimmer
PPB350 Gas Trimmer
SM132 Type 1 Gas Trimmer
SM132 Type 2 Gas Trimmer
SM132LE Type 1 Gas Trimmer
SM132LE Type 2 Gas Trimmer
PP3516AVX Gas Chainsaw
PP3516AVX Gas Chainsaw
PP4218AVX Gas Chainsaw
PP4218AVX Gas Chainsaw
PP338PT Gas Trimmer
PP335 (2010) Gas Trimmer
PP5020AV 2 Stroke Gas Chainsaw
PP5020AV 2 Stroke Gas Chainsaw
PP446T Pro Trimmer
PP133 Pro Gas Trimmer
PP333 Trimmer
PP445 Gas Pole Pruner
PP330 Gas Trimmer
PP4218 (Type 1 ) Gas Saw
PP4218 (Type 2) Gas Saw
PPB4218 Chain Saw
PPB4218 Chain Saw
PP446ET (Type 1) Pruner
PP446ET (Type 2) Pruner
PP446ET (Type 3) Pruner
PP446ET Pruner
PP446E (1) Pruner
PP446E (2) Pruner
PPB330 Grass Line Trimmer, Gas
PPB330 Grass Line Trimmer, Gas
PPB330 (1) Grass Line Trimmer, Gas
PPB330 (1) Grass Line Trimmer, Gas
PPB330 (2) Grass Line Trimmer, Gas
PPB330 (2) Grass Line Trimmer, Gas
PPB330 (3) Grass Line Trimmer, Gas
PPB330 (3) Grass Line Trimmer, Gas
SM446E Pole Pruner
PP46ET Trimmer
PP3416 (966063001) Gas Chainsaw
PP3416 (966063001) Gas Chainsaw
PPB335 (Type 1) Gas Trimmer
P3816 Gas Chain Saw Type 1
P3816 Gas Chain Saw Type 1
PP3816AV Gas Saw Type 1
Weed Eater
Husqvarna

Products Compatibility

This item works with the following types of products:

  • • Blower
  • • Chain Saw
  • • Grass Trimmer
  • • Pruner
  • • Saw
  • • Trimmer
Questions & Answers

does the line from the primer pump stick in the larger hole on the gas tank or is there another way to attach this line? I know that the smaller hole is for the line going to the filter.
Don for model number pp338pt
Hello Don, Thank you for the question. The primer pump line would go tot he larger hole. Hope this helps, good luck with this repair!
Repair Instructions: Submitted by Customers Like You
76 of 86 people found this instruction helpful
Tool Type:
Chain Saw
Parts Used:
Fuel Line - 530069247
Purge Line - 530069216
Purge Bulb - 530047721
Fuel Cap Assembly - 580940901
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Pliers
Old Primer Bulb was cracked and would not pump fuel into the carb
- Removed top cover (to access carb area and allow side panel removal)

- Removed side cover where primer bulb is located

- Remove old snap in primer bulb (without disconnecting fuel lines)

- Cut and replace the 2 fuel lines one at a time (mine were hard and brittle from old fuel)

- The new bulb has 2 fuel ports, one is longer than the other which matched the old bulb.

- Installation instructions said to double check the direction of the fuel flow (the bulb sucks fuel through the carb, so the inlet side is connected to the carb and the outlet side goes back to the fuel tank).

- Snap the new bulb into place on the side panel

- Attach the side panel

- Attach the top panel

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13 of 15 people found this instruction helpful
Tool Type:
Chain Saw
Parts Used:
Air Filter - 530057925
Purge Bulb - 530047721
Fuel Filter - 530095646
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Socket set, carburetor cleaner
Would start & idle fine, but would not stay running when i gave it throttle.
Cleaned the carburetor, Purge bulb was cracked, so changed it. put new air filter on & new fuel filter. Also changed the spark plug & cleaned the spark arrestor. didn't take very long at all. super easy, believe anybody could do it.
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7 of 7 people found this instruction helpful
Tool Type:
Pruner
Parts Used:
Purge Bulb - 530047721
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Pliers, razor blade & allen wrench
Ethanol damage
Had primer failure. Replaced bulb and found gas had rotted gas tank line
as well. Ordered tank replacement. Great web sight. Easy to find exactly what
you need. Installation is straight forward. Instructions for the bulb and tank are easy to get online. Information is everywhere. Very fast shipping. If you need replacement parts for your tool. This is by far the best place to get them. Enough said. Good luck with your repairs.
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5 of 5 people found this instruction helpful
Tool Type:
Chain Saw
Parts Used:
Purge Bulb - 530047721
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver, Pliers, Socket set, Star driver
Split primer bulb air getting in fuel line.
Remove side cover to access the primer bulb,then with a screw driver pry it out and remove fuel lines .
This is a good time to replace fuel lines if they are hard or cracked. Attach fuel lines in same order on new
Bulb ,snap it back in and replace cover. Done!
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6 of 7 people found this instruction helpful
Tool Type:
Trimmer
Parts Used:
Purge Bulb - 530047721
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver
Leaky Bulb
Disconnected (2) fuel lines. Unclipped old bulb from base Clipped in new Bulb and reattached fuel lines. Done.
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4 of 5 people found this instruction helpful
Tool Type:
Pruner
Parts Used:
Fuel Line - 530069247
Purge Line - 530069216
Purge Bulb - 530047721
Fuel Filter - 530095646
Repair Difficulty:
Medium
Time Spent Repairing:
1-2 hours
Tools Used:
Screwdriver, Sharp knife, Allen wrench
Two Poulan Pro power heads not running
The fuel system disintegrates from the ethanol in gasoline, so I ordered the necessary parts; fuel filter and fuel line, purge line (different size), and a primer bulb, if one is needed.. If the primer bulb is tore, cracked, or makes a whistling sound, replace it first. Get a diagram online if your fuel lines are in pieces, but if they are intact, remove the fuel line from the back of the primer assembly, slowly pull the fuel filter and fuel line out through the fuel fill port. Cut your new fuel line's end at a diagonal, so that you can insert it through the hole in the gas tank. Slowly push enough through until you can grab it from the fuel fill port. Cut off this diagonal piece so that the end is once again square, and install your new fuel filter. Pull the fuel line back enough so the fuel filter is at an appropriate pickup point, I.e., close to the bottom of the tank while running. Cut the fuel line so that it just connects with the primer assembly. Remove the purge line from the primer assembly and use it to cut a new purge line slightly longer, with a diagonal cut on one end. Feed the diagonal end through the tank wall, and connect the other end to the primer assembly. I was able to do my 2 machines from one fuel line and purge line kit.
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4 of 5 people found this instruction helpful
Tool Type:
Blower
Parts Used:
Purge Bulb - 530047721
Repair Difficulty:
Medium
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver, fingers
Primer was leaking. new one fairly easy to replace
Take off air filter cover, pull 2 gas lines off old primer, put gas lines onto new plunger, screw air filter cover back on. Done.
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2 of 2 people found this instruction helpful
Tool Type:
Blower
Parts Used:
Purge Bulb - 530047721
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Pliers
Leaking fuel from purge bulb
Removed the air filter cover and the filter. Removed the purge bulb from the air box. Removed the fuel line from the old bulb and placed them on the new bulb. Pressed the new bulb into the air box, then replace the air filter assembly
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2 of 2 people found this instruction helpful
Tool Type:
Chain Saw
Parts Used:
Fuel Line - 530069247
Purge Line - 530069216
Fuel Line Fitting - 530023877
Screw - 530016153
Purge Bulb - 530047721
Air Filter - 530057869
Fuel Filter - 530095646
Repair Difficulty:
Medium
Time Spent Repairing:
15-30 minutes
Tools Used:
Nutdriver, needle nose pliers / razor blade
All of the fuel lines was broken due to me leaving fuel in the tank of the winter months.
I removed the plastic covers on the top and side of the chain saw to replace the fuel lines to the carburetor and primer bulb. I also removed the fuel cap and drained the fuel from the tank to connect the fuel line in the tank and replace the assy-pick-up and fuel line fitting.
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2 of 2 people found this instruction helpful
Tool Type:
Chain Saw
Parts Used:
Purge Bulb - 530047721
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver
Primer/purge bulb replaced on poulan chain saw
Remove engine top cover and side plate (pull-starter cover) by removing screws with chain-saw "scrench"; allows access to purge bulb. Slip old primer bulb from "notch" in engine block assembly. Remove (slip off) hoses from old primer bulb; noting hose connection locations. Connect hoses to new primer bulb, and replace bulb/hose assembly in "notch". Clean exposed top and side of engine (especially carb, air filter, etc. before re-attaching covers.

One part, one tool, very quick repair!!
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Discussion
Discussion for Purge Bulb - ( 530047721 )
Discussion is closed. To ask our experts a question about a part, use the Q&A feature.
Question: Bulb-purge Snap In

1261939

Is the longer side of the two connections going to the tank or the carb?
WJA
Hello 1261939,

We have an article and video that will show you what side of the Primer to use. Here is the link to it.

How to Replace Fuel Lines on 2-Cycle Engines

-WJA
Question: Primer Bulb Hose Routing

grizzlyalan

When changing the primer bulb do I connect the suction port to the carb. or to the fuel tank?
The word "Primer" is misleading. It actually purges the carburetor. If you are talking about a snap in primer bulb, the little nipple (suction) is connected to the outlet of the carb and the longer nipple goes back into the tank. What the primer does is actually pull the air out of the carb which is replaced by the fuel coming into the carb from the tank. The return does not have a filter on it. The line in does.
View link removed
Question: Purge Blub

carnellbernard

does the line from the gas tank go into the bulb that's marked IN ?
WJA
Hello carnellbernard,

We have prepared an article and video on How to Replace Fuel Lines on 2-Cycle Engines. This should answer the question you have regarding the fuel line.

-WJA
Question: Bulb-purge "snap-in"

1178244

How to replace and which fuel line goes where?
WJA
Hello 1178244,

We have a few articles and video that we have prepared. That I think will provide the information you are looking for. Here are the links to them.

How to Replace a Primer Bulb

How to Replace Fuel Lines on 2-Cycle Engines

How to Replace Trimmer Fuel Lines

Hope this helps,
-WJA
WJA
Hello 1178244,

We have a few articles and videos that we have prepared. That I think will provide the information you are looking for. Here are the links to them.

How to Replace a Primer Bulb

How to Replace Fuel Lines on 2-Cycle Engines

How to Replace Trimmer Fuel Lines

Hope this helps,
-WJA
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