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Dayton pump repair kit with impeller seal gaskets and bolts

Dayton

Dayton 21TG62 Repair Kit for 2ZWT8 Pump

SKU CH-0082-XRSSG

Repair kit for Dayton 2ZWT8 straight centrifugal pump with Viton gasket, mechanical seal, impeller, lock nut, shim kit, O-ring and mounting hardware

  • Compatible with Dayton 2ZWT8 pump
  • Viton gasket material resists chemical attack
  • Impeller and lock nut included for seal replacement
  • Mechanical seal and O-ring prevent leaks
  • Hardware kit provides lockwashers and bolts for reassembly

Repair Kit for 2ZWT8 Centrifugal Pump

This Dayton 21TG62 kit provides the components needed to service a 2ZWT8 straight centrifugal pump. It is intended for maintenance technicians and facility managers who want to restore pump performance without replacing the entire unit. The kit matches the original manufacturer specifications for fit and function. California Proposition 65 warnings apply to this product.

Sealing Hardware and Viton Gasket Material

The kit includes a mechanical seal and an O-ring made from Viton for chemical resistance. Also supplied are an impeller with lock nut, an impeller shim kit, four 3/8 in lockwashers, four 3/8 in -16 x 1 in bolts, and four 5/16 in -18 hex head bolts with lockwashers. These parts address common wear points in the pump's sealing and fastening assembly.

Compatibility Limited to Dayton 2ZWT8 Model

This repair kit is compatible only with the Dayton 2ZWT8 pump, also referenced by Grainger part number 2ZWT8. It will not fit other pump models, brands, or centrifugal pump types. Buyers who need parts for a different pump must source a kit matched to that specific model number.

Highlights

  • Compatible with Dayton 2ZWT8 pump
  • Viton gasket material resists chemical attack
  • Impeller and lock nut included for seal replacement
  • Mechanical seal and O-ring prevent leaks
  • Hardware kit provides lockwashers and bolts for reassembly

Specifications

BrandDAYTON

Questions about this item

How do I install the mechanical seal and impeller with lock nut from this kit, and which step is commonly done wrong?

Fit the mechanical seal squarely into the pump housing before sliding the impeller on, then torque the lock nut to spec; the step most often missed is seating the seal faces evenly, which causes leaks.

What parts in this Dayton 21TG62 kit will need replacement again after extended service?

The Viton gasket, mechanical seal, O-ring and impeller shim kit are wear items that typically require renewal after prolonged pumping cycles.

Which limit appears first when this repair kit is used on a 2ZWT8 pump running continuously?

The mechanical seal’s wear life is usually the first limit reached under sustained operation, followed by the Viton gasket and O-ring degradation.

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