Home » Pump Repair Kit » Kit-300/400 Gun"G" Diffuser & Ball Mount

Graco 4426G Gun Kit Replacement

SKU: 20-2392
Replacement for: Graco 4426G
Kit-300/400 Gun"G" Diffuser & Ball Mount
Assembled in the USA
$81.14
Ships same day if order placed before 3pm EST

Ships same day if order placed on M-F before 3pm EST

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Hassle-free Returns

Free shipping on Orders over $20

Free shipping on Orders over $20

Questions? Contact our Expert, Garth

Email (914) 241-2211

The Bedford 20-2392 is a direct-fit replacement for the 300/400 Gun "G" Diffuser & Ball Mount assembly, a wear-prone component in Graco's 300 and 400 series spray guns. This kit supplies the diffuser and ball mount elements that control fluid atomization and spray pattern consistency during high-volume coating work.

Professional painting contractors and airless spray equipment specialists rely on this assembly to maintain uniform spray characteristics across exterior and industrial finish applications. When the diffuser or ball mount degrades, spray pattern quality deteriorates and material waste increases—making timely replacement essential for job site efficiency.

Common reasons for replacement:

  • Diffuser erosion or scoring from prolonged fluid contact, causing uneven or fan-shaped spray patterns
  • Ball mount wear or sticking that restricts fluid flow adjustment or creates dead spots in coverage
  • Corrosion or material buildup on diffuser surfaces, reducing atomization efficiency
  • Improper spray pattern or pulsing during application, indicating internal component degradation

Manufactured to OEM-equivalent dimensions for proper fit and performance. Compatible Graco equipment models are listed in the Compatible Equipment section below, where available.

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