Spare Parts · WSI

WSI
WATERJET SPARE PARTS

WSI (Waterjet Systems International — known before 2012 as Waterjet Service Inc.) is a US manufacturer of ultra-high-pressure waterjet pumps and components. The WSI items in our list are almost entirely on the pump side.

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Write the part number or your machine model for any WSI waterjet part not shown in the list — we will reply with lead time and price.

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Pump and valve group

Intensifier pump components, check valve and poppet kits, on/off actuator parts, seal and o-ring sets, and filter elements. There are no cutting head items under this brand — for cutting head consumables see the IWP, H2O Jet and AccuStream lists.

Filtration is the most commonly overlooked item on this list and the most expensive to neglect. Unfiltered or hard water shortens the life of high-pressure seals; a pump rebuild costs many times a filter service.

Finding the right part

If you cannot find the code you are looking for in the list, simply write the part number on the enquiry form — availability and lead time are confirmed in our reply.

Send an enquiry for parts you cannot find in the list · We will reply with price, availability and lead time

Part Type

79 parts shown

WSIPart NoVLV1006

On/Off Seal Backup Ring

Pump (Intensifier)
WSIPart NoAwaiting code

3/8" Nozzle Tube, 5" long

Nozzle
WSIPart NoWS1014

7/8" Plunger Seal Backup Ring

Pump (Intensifier)
WSIPart NoAwaiting code

8" Cylinder Spacer

Pump (Intensifier)
WSIPart NoAwaiting code

Actuator Assembly, NC, 3/4-16 Thread

Other
WSIPart NoAwaiting code

Actuator Spring, Normally Closed

Pump (Intensifier)
WSIPart NoAwaiting code

Ball Retainer

Other
WSIPart NoAwaiting code

Bleed Down Repair Kit, Black Seal, without Backup

Pump (Intensifier)
WSIPart NoAwaiting code

Bleed Down Repair Kit, WSI

Other
WSIPart NoAwaiting code

Bleed Down Repair Kit, Yellow Seal, without Backup

Pump (Intensifier)
WSIPart NoAwaiting code

Booster Pump, Clockwise Rotation

Other
WSIPart NoAwaiting code

Booster Pump, Counter Clockwise Rotation

Other
WSIPart NoAwaiting code

Capped T-Seal, 4"

Pump (Intensifier)
WSIPart NoAwaiting code

Check Valve Adapter (Outlet Body)

HP Tubing & Fittings
WSIPart NoAwaiting code

Check Valve Assembly

Pump (Intensifier)
WSIPart NoAwaiting code

Check Valve Ball

Pump (Intensifier)
WSIPart NoAwaiting code

Check Valve Body, 60k, WSI Style

Pump (Intensifier)
WSIPart NoAwaiting code

Check Valve Housing, WSI Style

Pump (Intensifier)
WSIPart NoWA1028

Check Valve Inlet Poppet

Pump (Intensifier)
WSIPart NoAwaiting code

Check Valve Outlet Poppet

Pump (Intensifier)
WSIPart NoAwaiting code

Check Valve Outlet Poppet Seat

Pump (Intensifier)
WSIPart NoAwaiting code

Check Valve Poppet Guide

Pump (Intensifier)
WSIPart NoAwaiting code

Check Valve Repair Kit

Pump (Intensifier)
WSIPart NoAwaiting code

Check Valve Repair Kit, Minor

Pump (Intensifier)
WSIPart NoAwaiting code

Check Valve Repair Kit, WA1051

Pump (Intensifier)
WSIPart NoAwaiting code

Check Valve Repair Kit, WS style

Pump (Intensifier)
WSIPart NoAwaiting code

Cylinder Spacer

Pump (Intensifier)
WSIPart NoAwaiting code

Disc

Pump (Intensifier)
WSIPart NoAwaiting code

Extension Tube Adapter, WSI to IWP

HP Tubing & Fittings
WSIPart NoAwaiting code

High Pressure Assembly, Blue, with Hoop, Seal, and O-Ring

Pump (Intensifier)
WSIPart NoAwaiting code

High Pressure Cylinder, 60k

Pump (Intensifier)
WSIPart NoAwaiting code

High Pressure Seal Kit w/ Backup Rings

Pump (Intensifier)
WSIPart NoAwaiting code

High Pressure Seal Kit without Backup Rings

Pump (Intensifier)
WSIPart NoAwaiting code

High Pressure Seal Kit, Blue

Pump (Intensifier)
WSIPart NoAwaiting code

Hydraulic Bushing

Other
WSIPart NoAwaiting code

Hydraulic Filter

Pump (Intensifier)
WSIPart NoAwaiting code

Low Pressure Cylinder Seal, WSI

Pump (Intensifier)
WSIPart NoWS1035

New Style Inlet Cap Screw

Pump (Intensifier)
WSIPart NoVLV1002

Normally Closed Actuator Assembly

Other
WSIPart NoAwaiting code

Normally Closed Actuator Valve Needle

Pump (Intensifier)
WSIPart No73514

Normally Open Actuator Assembly

Other
WSIPart NoAwaiting code

Nozzle Tube

Nozzle
WSIPart NoAwaiting code

O-Ring

Pump (Intensifier)
WSIPart NoAwaiting code

O-Ring 1/8" x 1/4" x 1/16"

Pump (Intensifier)
WSIPart NoAwaiting code

O-Ring Lube

Pump (Intensifier)
WSIPart NoAwaiting code

O-Ring, 1-5/16" x 1-1/2" x 3/32"

Pump (Intensifier)
WSIPart NoAwaiting code

O-Ring, 2-1/4" x 2-3/8" x 1/16"

Pump (Intensifier)
WSIPart NoAwaiting code

O-Ring, 2-3/4" x 3" x 1/8"

Pump (Intensifier)
WSIPart NoAwaiting code

O-Ring, 2-7/16" x 2-5/8" x 3/32"

Pump (Intensifier)
WSIPart NoAwaiting code

O-Ring, 3/8" x 1/2" x 1/16"

Pump (Intensifier)
WSIPart NoAwaiting code

O-Ring, Actuator Plate

Pump (Intensifier)
WSIPart NoAwaiting code

Old Style Backup Ring

Pump (Intensifier)
WSIPart NoVLV1004

On/Off Seat

Other
WSIPart NoVLV1003

On/Off Valve Needle

Pump (Intensifier)
WSIPart NoAwaiting code

On/Off Valve Repair Kit, w/o Seal Backup Ring

Pump (Intensifier)
WSIPart NoAwaiting code

On/Off Valve Repair Kit, Yellow Seal

Pump (Intensifier)
WSIPart NoVLV-1005

On/Off Valve Seal Assembly

Pump (Intensifier)
WSIPart NoAwaiting code

On/Off Valve Tool Kit

Pump (Intensifier)
WSIPart NoWS1024

Outlet Poppet Seat

Pump (Intensifier)
WSIPart NoWS1027

Plunger Seal O-Ring and Backup

Pump (Intensifier)
WSIPart NoAwaiting code

Position Sensor

Other
WSIPart NoAwaiting code

Roll Pin, Stainless Steel, 1/16" x 5/16

Other
WSIPart NoAwaiting code

Short Stop Filter

Pump (Intensifier)
WSIPart NoAwaiting code

Short Stop Filter Adapter Insert

HP Tubing & Fittings
WSIPart NoAwaiting code

Short Stop Filter Housing

Pump (Intensifier)
WSIPart NoAwaiting code

Snap Ring

Pump (Intensifier)
WSIPart NoAwaiting code

Solenoid Valve, 110VAC

Pump (Intensifier)
WSIPart NoAwaiting code

Wear Ring, 4" x 3-3/4" x 1/2"

Pump (Intensifier)
WSIPart NoAwaiting code

WSI Check Valve Ball Guide

Pump (Intensifier)
WSIPart NoAwaiting code

WSI High Pressure Cylinder, 60k

Pump (Intensifier)
WSIPart NoAwaiting code

WSI High Pressure Cylinder, 60k, 30 HP Pump

Pump (Intensifier)
WSIPart NoAwaiting code

WSI Left End Closure Block

Other
WSIPart NoAwaiting code

WSI On/Off Valve Body

Pump (Intensifier)
WSIPart NoAwaiting code

WSI ON/OFF VALVE REPAIR KIT

Pump (Intensifier)
WSIPart NoAwaiting code

WSI Plunger Retainer

Pump (Intensifier)
WSIPart NoAwaiting code

WSI Right End Closure Block

Other
WSIPart NoAwaiting code

WSI Seal Assembly

Pump (Intensifier)
WSIPart NoAwaiting code

WSI Snap Ring

Pump (Intensifier)
WSIPart NoAwaiting code

Yellow Goop, Anti-Seize Compound, 1 Oz.

Other