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Weathermatic Silver Bullet Diaphragm Spring 45-113 - 12000 Series

Brand: Weathermatic
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$3.73
$1.40
SKU 45-113

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OEM Weathermatic part 45-113 - stainless-steel diaphragm spring designed for Silver Bullet valve assemblies (12000 series). Direct replacement for the Silver Bullet (SB/12000) diaphragm spring; restores proper diaphragm tension and valve operation.

  • OEM replacement for Weathermatic part number 45-113; fits Silver Bullet 12000 series and compatible SB models.
  • Stainless-steel construction resists corrosion for long service life in buried irrigation systems.
  • Restores diaphragm tension to prevent valve leaks and ensures reliable, pressure-activated operation.
  • Simple swap-in replacement: remove cover bolts, replace spring, reassemble; no special tools required for basic service.
  • Refer to technical specification and sales sheet for fitment, installation diagrams, and electrical ratings.

Keep a small inventory of OEM springs for quick repairs. If you're unsure about fitment, consult the valve parts diagram or the valve's technical sheet before ordering.

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Frequently Asked Questions

What valves is the 45-113 spring compatible with?
Fits Weathermatic Silver Bullet 12000 series (SB) valves and compatible SB models; check the parts diagram for exact fitment.
How do I install the diaphragm spring 45-113?
Basic swap: remove cover bolts, replace the spring, and reassemble. Follow the valve technical sheet for torque and safety details.
What material is the diaphragm spring made from?
The spring is stainless steel per Weathermatic parts specifications, providing corrosion resistance for buried irrigation use.
When should I replace the diaphragm spring on my Silver Bullet valve?
Replace if the valve leaks, operates erratically, or the spring shows visible damage. Keeping a spare speeds repair on site.