ZX.1931 Valves and O-Rings Kit for CAT Pumps

In stock
Part Number
ZX.1931
$40.57
Part Number: ZX.1931
Compatible Brands: CAT Pumps, Idrobase
Shipping Weight: 0.2 Lbs

The ZX.1931 is a valves and O-rings kit for CAT pressure washer pumps. This kit is designed to match the OEM specifications of the CAT 33820 Valves and O-rings Kit.

ZX.1931 includes O-rings, seats, valves, springs, and retainers. These components match original manufacturer's standards and can be used to replace the CAT 33820 kit.

The ZX.1931 is made in Italy and meets or exceeds all OEM standards.

Kit ZX.1931 services several models of CAT pumps, including the 56, 56HS, 56G1, and 56HSG1.

Using OEM-standard components to service your pump can help extend its lifespan and keep it running at peak performance.


Parts included in the ZX.1931 Valves and O-rings Kit

  • (43248) PTFE Seat Back-Up Ring (1)
  • (43249) Buna-N 80D Seat O-Ring (1)
  • (43722) 304 Stainless Steel Seat (1)
  • (43721) 304 Stainless Steel Valve (1)
  • (43751) 304 Stainless Steel Spring (1)
  • (44564) PVDF Spring Retainer (1)
  • (14179) Buna-N 70D Valve Plug O-Ring (1)
  • (20213) PTFE Valve Plug Back-Up Ring (1)

The ZX.1931 is a direct replacement for CAT Valves and O-ring Kit 33820.


Additional Service and Interchange Information:

Cross Reference Part Number(s): C033820

Manufacturer's Part Numbers (MPNs): K33820, KIT33820, 33820

Idrobase Part Numbers: ZX.1931, ZX1931, ZX-1931

Kleen-Rite Part Number: PU33820

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Idrobase quality replacement parts by Idrobase North America meet or exceed all OEM quality CETA standards for replacement parts and components and are not directly manufactured by your equipment brand.

These replacement components are made from Italy’s highest OEM quality materials to meet or exceed all manufacturers’ product standards.

All Idrobase North America Dolly Spare Parts will be engineered for specific pumps and multiple brands and manufacturers of pressure washer pumps made according to Idrobase’s technical specifications and production standards.

C033820