See part A-18 in the diagram
( Grid squares measure 1x1 inch )
Trimmer Cap Assembly 578931503
Manufactured by:
Husqvarna
ERP Number: ERP11824247
Part Number: 578931503
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Delivers in 3-5 Business Days!
Frequently Purchased Together
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Troubleshooting
This part works with the following brands:
This part works with the following products:
Trimmer
Edger
Leaf Blower / Vacuum
Brush Cutter
Part# 578931503 replaces these:
530150350, 578931501,
Videos For installing this part.
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Customer Part Reviews
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Sorry, we couldn't find any existing reviews that matched. Try using some different or simpler keywords.
perfect fit
arrived quickly and fit perfectly
Guest - May 30, 2019
Verified Purchase
Weed Trimmer repair
Cap and kill switch resoled my problem...everything fit perfect..will buy again from you..cheers
Guest - July 18, 2019
Verified Purchase
Excellent parts and fast delivery
Goooooooood
Guest - September 25, 2019
Verified Purchase
Easy fix
Original cap leaked when closed. This part fixed the issue!
Guest - September 30, 2019
Verified Purchase
Worked great exactly what I needed!
Leaf blower works great now
Guest - December 3, 2020
Verified Purchase
cap replacement
Very easy & convenient to order part. Timely on shipping. Will definitely use again!
Guest - September 3, 2021
Verified Purchase
Correct part delivered quickly
Everything was as I ordered. Delivered quickly
Guest - April 19, 2023
Verified Purchase
Easy repair
Quick delivery and fit perfectly.
Guest - September 17, 2021
Verified Purchase
Gas cap
Came quickly and correct part
Works great
Guest - October 23, 2019
Verified Purchase
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.
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Most Helpful
Most Recent
Sorry, we couldn't find any existing installation instruction that matched.
Carburetor had had ethanol gas run through it. Needed replacement.
Bryan from Blairsville , Georgia
11 of 11 people
found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
30 - 60 mins
Tools:
Pliers, Socket set
Repair was simple. Most difficult part was replacing fuel and return lines. Cut lines at an angle, put oil on them, push through hole and grab with a pair of hemostats and pull. Not sure pliers would work. Other than that simple.
leak gas through the cap
ralph from wilkesboro, North Carolina
1 person
found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers
install the gas cap husqvarna 128ld trimmer work great assy coupler use screwdriver
cap was not venting
Michael from Lowell, Indiana
0 of 1 people
found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Lost gas cap
James from Aurora, Colorado
0 of 1 people
found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Place retainer in fuel tank, then screw on the new gas cap.
Model Cross Reference
This part works with the following models:
ERP Number: ERP11824247
Manufacturer Part Number: 578931503
Brand
Model Number
Description
Husqvarna
124C
Trimmer
- Husqvarna String Trimmer Model 124C/2006-05 (124C/200605, 124C/2006 05) Parts
Husqvarna
124L
Trimmer
- Husqvarna String Trimmer Model 124L/2006-05 (124L/200605, 124L/2006 05) Parts
Husqvarna
124R
Brush Cutter
- Brushcutter
Husqvarna
125B
Leaf Blower / Vacuum
- 28cc 2-Stroke 170-MPH Gas-Powered Handheld Gas Blower
Husqvarna
125BV
Leaf Blower / Vacuum
- Husqvarna Leaf Blower Model 125BV Parts
Husqvarna
125BVX
Leaf Blower / Vacuum
- 28cc 2-Cycle Gas Powered 170 Mph Blower/Vac With Smart Start
Husqvarna
125BX
Leaf Blower / Vacuum
- Handheld Leaf Blower
Husqvarna
125C
Trimmer
- Trimmer
Husqvarna
125C-CANADA
Trimmer
- Gas Line Trimmer
Husqvarna
125E
Edger
- Edger
Husqvarna
125E-CANADA
Trimmer
- Gas Line Trimmer
Husqvarna
125L
Trimmer
- Trimmer
Husqvarna
125LD
Trimmer
- 125 Ld, 20061000001-20064900000
Husqvarna
125LDX
Trimmer
- Husqvarna String Trimmer Model 125LDX Parts
Husqvarna
125LDXTEST
Trimmer
- 125ldx Test (2010-06)
Husqvarna
125LSST
Trimmer
- Gas Line Trimmer
Husqvarna
125R
Brush Cutter
- Brushcutter
Husqvarna
125R-CANADA
Trimmer
- Gas Line Trimmer
Husqvarna
125RJ
Brush Cutter
- Brushcutter
Husqvarna
128C
Trimmer
- Trimmer/Edger
Husqvarna
128CD
Trimmer
- 28cc Gas Line Lawn Trimmer
Husqvarna
128DJX
Trimmer
- Husqvarna String Trimmer Model 128DJX Parts
Husqvarna
128L
Trimmer
- Husqvarna String Trimmer Model 128L/2008-09 (128L/200809, 128L/2008 09) Parts
Husqvarna
128LD
Trimmer
- Trimmer/Edger
Husqvarna
128LDX
Trimmer
- Husqvarna String Trimmer Model 128LDX/2009-03 (128LDX/200903, 128LDX/2009 03) Parts
Husqvarna
128LX
Brush Cutter
- 128 Lx
Husqvarna
128PS
Pole Saw
- 128ps
Husqvarna
128R
Brush Cutter
- Brushcutter
Husqvarna
128RJ
Trimmer
- Husqvarna String Trimmer Model 128RJ/2009-08 (128RJ/200908, 128RJ/2009 08) Parts
Husqvarna
130BT
Leaf Blower / Vacuum
- 130 Bt - 965102208 (20133100001-Current)
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Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.
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