Multiquip 13256 Inside Rocker Spring
Multiquip

Multiquip 13256 Inside Rocker Spring

$8.90
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SKU:
13256-Multiquip
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The Multiquip 13256 Inside Rocker Spring is a genuine OEM component designed for C30HDNI, C30HDN, C30HDNI Precision, and C30HDNI Zenith Mayco concrete pumps. Sourced directly from Multiquip, this spring meets the exact specifications required to keep the rocker assembly functioning correctly within the concrete pump's valve system. If you're servicing a C30HDNI or C30HDN unit, verifying the correct spring 13256 is critical — the 13256 is the confirmed OEM replacement for these models.

Key Features

  • Genuine OEM Spring Tension: — Manufactured to the exact coil rate and free-length spec required by the rocker valve assembly — no guessing on spring pressure.
  • Direct-Fit Rocker Assembly Installation: — Designed to seat correctly within the rocker housing without reworking or shimming, streamlining valve reassembly.
  • Confirmed Fitment: — Compatible with C30HDNI, C30HDN, C30HDNI Precision, and C30HDNI Zenith Mayco concrete pump models.
  • Consistent Valve Cycling: — A correctly tensioned inside rocker spring ensures smooth, repeatable valve actuation — a worn or fatigued spring leads to erratic cycling and inconsistent concrete flow.
  • Pressure System Integrity: — In a concrete pump's valve circuit, proper spring force is essential to maintaining sealed valve closure under operating pressure — a failed spring can compromise pumping output and allow backflow.

The inside rocker spring is a core component of the concrete pump's valve rocker mechanism, providing the return force needed to reset the rocker after each actuation cycle. Without adequate spring tension, the valve cannot close fully or consistently, resulting in reduced pumping efficiency, pressure loss, and potential material backflow through the valve body. Replacing a fatigued or broken inside rocker spring restores proper valve timing and protects the surrounding rocker assembly from accelerated wear caused by uncontrolled movement.

For fitment questions or help confirming this part is correct for your specific serial number or configuration, contact the DHS Equipment parts team directly.

Part Details

Part Number13256
BrandMultiquip
Part TypeGenuine OEM
DescriptionInside Rocker Spring

Compatibility & Fitment

Name Model
Mayco Pumps C30HDNI
Mayco Pumps C30HDN
Mayco Pumps C30HDNI Precision
Mayco Pumps C30HDNI Zenith

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

Why Buy From DHS Equipment

Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.

Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.