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Dayton cast iron semi-open impeller, 4 in diameter

Dayton

Dayton PP23023C40201G Cast Iron Impeller 4 in

SKU CH-PRXD-1CG4R

Cast iron 4 in semi-open impeller fits Dayton CPI-1491/2 straight centrifugal pumps

  • ColorTransparent
  • Cast iron construction resists corrosion and wear
  • 4-inch diameter matches CPI-1491/2 and 4YKP7 pump specs
  • Semi-open design handles solids in centrifugal pumps
  • Direct-from-manufacturer shipping on orders over $75
  • Transparent finish allows quick visual inspection

Compatible Impeller for Dayton Straight

This cast-iron impeller fits Dayton straight centrifugal pumps and matches manufacturer model CPI-1491/2. It is built for maintenance teams that need a direct replacement part for existing pump installations. The semi-open design suits standard fluid-handling duties in commercial and industrial settings.

Upgrade Path From Worn or Damaged Original Impellers

The jump is worth it when the current impeller shows erosion, cavitation damage or reduced flow output. Swapping to this new cast-iron unit restores the pump’s original hydraulic performance without changing pipework or motor alignment. It also replaces the Grainger 4YKP7 reference for simplified reordering.

Straightforward Drop-In Installation

Installation follows the pump manufacturer’s standard impeller removal procedure; no special tools are required beyond typical shaft and coupling hardware. The main issues arise if the shaft keyway is worn or if the volute clearance has changed, which can cause vibration or leakage after reassembly. Verifying shaft condition before fitment prevents most callbacks.

Highlights

  • Cast iron construction resists corrosion and wear
  • 4-inch diameter matches CPI-1491/2 and 4YKP7 pump specs
  • Semi-open design handles solids in centrifugal pumps
  • Direct-from-manufacturer shipping on orders over $75
  • Transparent finish allows quick visual inspection

Specifications

BrandDAYTON
ColorTransparent

Questions about this item

What pump models does the 4 in cast iron impeller fit?

It is compatible with Dayton straight centrifugal pumps using manufacturer model CPI-1491/2 and Grainger part 4YKP7.

How is the semi-open impeller installed on the pump shaft?

The impeller slides onto the motor shaft and is secured with the pump's original fastener; the step often missed is tightening to the manufacturer's specified torque.

When should the cast iron impeller be inspected or replaced?

Inspect for erosion, corrosion or vane damage during routine pump maintenance; replace if wear reduces flow or causes vibration.

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