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Toro 9-5359 1" diaphragm assembly for 220 Series brass irrigation valves, close-up of diaphragm and gasket components for replacement

Toro 9-5359 — 1" Diaphragm Assembly for 220 Brass Valves

Brand: Toro
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$111.61
$80.92
SKU 9-5359
In Stock (3)

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Replacement diaphragm assembly designed for Toro 220 Series 1" brass irrigation valves (SKU 9-5359). This direct-fit service part restores proper diaphragm function so valves open and close reliably—an essential replacement for routine maintenance or troubleshooting leaking or non-responsive 220 Series brass valves.

  • Direct replacement: Compatible with Toro 220 Series 1" brass valves for a straightforward swap.
  • Restores performance: Replaces worn or torn diaphragms to stop leaks and restore valve actuation.
  • Durable construction: Built to withstand irrigation service conditions and frequent cycle use.
  • Easy maintenance: Simple removal and reassembly—no specialized tools required for most installs.
  • OEM fit: Manufactured to the dimensions and tolerances expected for Toro 220 Series valve service parts.

This diaphragm assembly is intended for technicians and homeowners who maintain Toro 220 Series brass valves and need a reliable, OEM-compatible replacement part. For best results, inspect the valve bonnet, seat, and seals when replacing the diaphragm; if the valve shows additional damage, service or replace those components as needed. Refer to the Toro 220 series valve manual for detailed installation steps, torque values, and safety guidance.

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Frequently Asked Questions

What valves does the 9-5359 diaphragm assembly fit?
Fits Toro 220 Series 1" brass irrigation valves as a direct replacement for 1" models.
How do I install the Toro 9-5359 diaphragm assembly?
Remove the bonnet, take out the old diaphragm, position the new assembly, and reassemble. Follow the valve manual for torque values.
Is any special tool required to install this part?
No specialized tools are normally required; common hand tools suffice. Use manufacturer torque specs when reassembling.
Will this part restore normal valve pressure regulation?
Yes — on compatible 220 Series 1" brass valves a good diaphragm restores actuation and reduces leaks; check seats and seals during service.