We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Dayton 21TH09 repair kit with Viton gasket, impeller, mechanical seal, O-ring and assorted hardware

Dayton

Dayton 21TH09 Repair Kit for 2ZXJ7 2ZXJ8 2ZXJ9 2ZXK1 accessory

SKU CH-VFC1-VWA5F

Repair kit for Dayton straight centrifugal pumps 2ZXJ7, 2ZXJ8, 2ZXJ9 and 2ZXK1, includes mechanical seal, Viton gasket, impeller and mounting hardware

  • Restores pump performance with Viton gasket material
  • Fits four Dayton models 2ZXJ7 2ZXJ8 2ZXJ9 2ZXK1
  • Includes impeller and shim kit for precise alignment
  • Supplies mechanical seal and O-ring to prevent leaks
  • Provides nine hex cap screws and lock washers

Dayton 21TH09 Repair Kit Compatibility

The Dayton 21TH09 repair kit fits straight centrifugal pumps carrying model numbers 2ZXJ7, 2ZXJ8, 2ZXJ9 and 2ZXK1. It supplies the gaskets, mechanical seal, impeller and hardware needed to restore sealing and flow performance. Maintenance teams and facility engineers use it to return compatible pumps to service without sourcing individual components.

Replaces Worn Seals And Impeller Components

The kit replaces deteriorated Viton gaskets, a worn mechanical seal, the impeller and its shim set when leakage or reduced output appears. Installing the full set at once avoids repeated teardowns caused by mixing new and aged parts. The upgrade is worth it when the pump shows seal weep, pressure drop or impeller erosion that simple tightening cannot fix.

Direct Bolt-In Installation With Included Hardware

Installation uses the supplied 3/8 in -16 hex head cap screws and lock washers, so no separate fastener purchase is required. The low crown acorn nut and slinger washer fit the existing shaft without modification. Common issues include forgetting the impeller shims, which sets incorrect clearance, and reusing old O-rings instead of the new Viton pieces provided.

Highlights

  • Restores pump performance with Viton gasket material
  • Fits four Dayton models 2ZXJ7 2ZXJ8 2ZXJ9 2ZXK1
  • Includes impeller and shim kit for precise alignment
  • Supplies mechanical seal and O-ring to prevent leaks
  • Provides nine hex cap screws and lock washers

Specifications

BrandDAYTON

Questions about this item

What pump models does the 21TH09 repair kit fit?

The kit is compatible with Dayton straight-centrifugal pumps bearing manufacturer model numbers 2ZXJ7, 2ZXJ8, 2ZXJ9 and 2ZXK1.

Which fasteners are included for the mechanical-seal installation?

The package supplies four 3/8 in -16 x 1 in hex-head cap screws, four 3/8 in -16 x 3/4 in hex-head cap screws, four lock washers and a low-crown acorn nut.

What wear items will need replacement after this kit is installed?

The Viton gasket, mechanical seal, O-ring, 5/8 in slinger washer and impeller shim kit are consumables that will require periodic replacement.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.