18529276-1-M-Husqvarna-578931604-FUEL CAP ASSEMBLY LOW PERMEATI
Part Location Diagram of 578931604 Husqvarna FUEL CAP ASSEMBLY LOW PERMEATI
See part A-28 in the diagram
( Grid squares measure 1x1 inch )
18529276-1-S-Husqvarna-578931604-FUEL CAP ASSEMBLY LOW PERMEATI Part Location Diagram of 578931604 Husqvarna FUEL CAP ASSEMBLY LOW PERMEATI

FUEL CAP ASSEMBLY LOW PERMEATI 578931604

Works With Model BV1850!
$9.80
In Stock
Fix Number:
FIX18529276
Manufacturer #:
578931604
Manufactured by:
Husqvarna
Works With Model BV1850!

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Product Description

This fuel cap assembly is designed to securely seal the fuel tank while helping regulate internal pressure during operation. Its low-permeation design helps reduce fuel vapor emissions, while the built-in venting system prevents vacuum buildup for consistent engine performance. Made from durable materials, it also protects fuel from dirt, debris, and moisture. Ideal for replacing a worn or damaged cap, it helps ensure safe, leak-free operation and reliable equipment performance.

  • Works with the following brands:
    Poulan, Craftsman, Husqvarna, Weed Eater
  • Works with the following products:
    Leaf Blower / Vacuum, Trimmer, Pole Saw
  • Part# 578931604 replaces these:
    530049386, 530057973, 545215901, 578931603, 578931604, 578931605
Works with the following brands:
Poulan, Craftsman, Husqvarna, Weed Eater
Works with the following products
Leaf Blower / Vacuum, Trimmer, Pole Saw
Part Number Cross Reference
Part# 578931604 replaces these:
530049386, 530057973, 545215901, 578931603, 578931604, 578931605

Questions and Answers

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Harold Sprinkle
May 9, 2026
Looking for a replacement gas cap for this model.
For model number PP338PT
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Hello Harold, thank you for reaching out to us. The fuel cap assembly, part number FIX18529276, is compatible with your model number. We hope this information helps!

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Model Compatibility

This part works with the following models:
Fix Number: FIX18529276
Manufacturer Part Number: 578931604
Brand Model Number Description
Poulan 033 Trimmer - Poulan String Trimmer Model 033 Parts
Poulan 131 Trimmer - Poulan String Trimmer Model 131 Parts
Husqvarna 24B Leaf Blower / Vacuum - Husqvarna Leaf Blower Model 24B/TYPE 1 (24B/TYPE1) Parts
Poulan 25HHT Trimmer - Poulan String Trimmer Model 25HHT/TYPE 1 (25HHT/TYPE1) Parts
Husqvarna 31 Trimmer - Wg Handheld Trimmer
Weed Eater 31WG Trimmer - Gas Trimmer
Poulan 325 Edger - 325 - Poulan Pro Gas Trimmer - Pro Trimmers And Edgers
Craftsman 358.791032 Trimmer - 2-Cycle Gasoline Weedwacker
Craftsman 358348360 Trimmer - Trimmer
Craftsman 358791030 Trimmer - Trimmer
Craftsman 358791031 Trimmer - Trimmer
Craftsman 358791032 Trimmer - Trimmer
Craftsman 358791040 Trimmer - Trimmer
Craftsman 358791041 Trimmer - Trimmer
Craftsman 358791042 Trimmer - Trimmer
Craftsman 358791050 Trimmer - Trimmer
Craftsman 358791051 Trimmer - Trimmer
Craftsman 358791060 Trimmer - Trimmer
Craftsman 358791061 Trimmer - Trimmer
Craftsman 358791070 Trimmer - Trimmer
Craftsman 358791071 Trimmer - Trimmer
Craftsman 358791072 Trimmer - Trimmer
Craftsman 358791140 Trimmer - Trimmer
Craftsman 358791170 Trimmer - Gas Trimmer
Craftsman 358791510 Trimmer - Trimmer
Craftsman 358791560 Trimmer - Trimmer
Craftsman 358791580 Trimmer - Trimmer
Craftsman 358791590 Trimmer - Trimmer
Craftsman 358791800 Trimmer - Trimmer
Craftsman 358791801 Trimmer - Trimmer
FUEL CAP ASSEMBLY LOW PERMEATI
$ 9.80
  In Stock
Stock Status
 In Stock

Item is in stock and will ship today if your order is placed before 4:00 PM Eastern Standard Time.

If your order is placed after 4:00 PM EST, the in stock items will ship on the next business day.

 On Order

Item is not in stock and usually ships 3-5 business days from the time you place your order.

 Special Order

Item is not in stock and usually ships 10-15 business days from the time you place your order.

 NLA - No Longer Available

This item is no longer being made by the manufacturer, and cannot be added to your shopping cart.