Dayton 21TH19 Pump Repair Kit for 2ZXJ5 and 2ZXJ6

Repair Kit for 2ZXJ5 and 2ZXJ6 Pumps

This Dayton 21TH19 repair kit is designed for straight centrifugal pumps carrying the manufacturer model numbers 2ZXJ5 and 2ZXJ6. It supplies the internal components required to restore sealing and impeller function on those specific units. Maintenance teams and facility engineers use it to address wear without replacing the entire pump assembly. The kit targets the exact hardware identified by the Grainger part numbers 2ZXJ5 and 2ZXJ6.

Verify Pump Model and Seal Material

Before ordering, confirm the pump nameplate reads 2ZXJ5 or 2ZXJ6 and that the service fluid is compatible with Viton gasket material. The included mechanical seal and O-ring are sized for this model series only. Cross-reference the existing hardware against the listed screw threads and slinger washer diameter to ensure a direct fit. This kit will not suit other pump types or brands.

Viton Seals and Included Fasteners

The kit provides a Viton mechanical seal and O-ring for chemical resistance in demanding fluid-handling applications. An impeller and shim kit allow precise rotor positioning during reassembly. Four 3/8 in -16 by 1 in and four 3/8 in -16 by 3/4 in hex head cap screws, lock washers, a 5/8 in slinger washer and a low crown acorn nut are included for complete mounting. California Proposition 65 warnings apply to this product.