A-JET ON/OFF VALVE REBUILD KIT

HJ-307906

OMAX PART NUMBER: 307906

The HJ-307906 A-Jet On/Off Valve Rebuild Kit includes the following parts:

(2) HJ-307305 A-Jet Nozzle Stem Seat

(2) HJ-300997 On/Off Valve Backup Ring Assembly

(2) HJ-307791 A-Jet Nozzle Inlet Valve Stem

(2) HJ-302094 Onn/Off Valve Stem Seal Assembly


A-Jet On/Off Valve Rebuild Kit | HJ-307906

 

The HJ Waterjet HJ-307906 is a direct replacement for OMAX 307906 A-Jet On/Off Valve Rebuild Kit that restores reliable A-Jet On/Off Valve performance. The HJ Waterjet rebuild kit is designed for servicing and rebuilding the On/Off Valve used with A-Jet waterjet cutting equipment.

The A-Jet On/Off Valve Rebuild Kit HJ-307906 contains the essential seals, stems, and seats needed to rebuild the A-Jet On/Off Valve. Replacing worn valve components during scheduled maintenance can help maintain reliable operation, reduce the risk of unplanned downtime, and keep your OMAX waterjet cutting system operating properly.

 

Key Features

  • HJ Waterjet replacement part for OMAX Part #307906
  • Designed for the A-Jet On/Off Valve
  • Complete rebuild kit with seals, stems, and seats
  • Helps restore and maintain On/Off Valve performance
  • Ideal for routine OMAX waterjet maintenance and valve service

 

If your A-Jet On/Off Valve requires service or replacement of worn internal components, the HJ Waterjet HJ-307906 A-Jet On/Off Valve Rebuild Kit provides the components needed to rebuild the valve and support dependable waterjet operation.

Always verify the part number and equipment compatibility before ordering.

 

Frequently Asked Questions for | HJ-307906

 

1. What is HJ Waterjet Part Number HJ-307906?

HJ Waterjet Part Number HJ-307906 is a direct replacement for OMAX 307906 A-Jet On/Off Valve Rebuild Kit. It is designed to rebuild the On/Off Valve used on an OMAX A-Jet cutting head.

2. What does the HJ-307906 rebuild kit include?

The HJ-307906 A-Jet On/Off Valve Rebuild Kit contains the components needed to rebuild the valve, including:

  • Seals
  • Stems
  • Seats

3. What is HJ-307906 used for?

HJ-307906 is used to rebuild and service the On/Off Valve of an A-Jet waterjet cutting head. It is intended for replacing worn internal valve components rather than replacing the complete valve assembly. 

4. Is HJ-307906 an A-Jet On/Off Valve repair kit?

Yes. HJ-307906 is specifically the A-Jet On/Off Valve Rebuild Kit. It is commonly described as an A-Jet valve repair/rebuild kit because it provides replacement internal components for servicing the valve. 

5. What is the difference between HJ-307906 and HJ-307792?

This is an especially important FAQ because both part numbers are associated with A-Jet On/Off valve maintenance.

HJ-307906 is the A-Jet On/Off Valve Rebuild Kit, while HJ-307792 is listed as the A-Jet On/Off Valve Repair Kit / Stem Assembly Kit. They are different part numbers and should not automatically be treated as interchangeable. 

6. What is the difference between HJ-307906 and HJ-307854?

These are also different kits.

  • HJ-307906 — A-Jet On/Off Valve Rebuild Kit
  • HJ-307854 — A-Jet PTO Valve Rebuild Kit

7. When should the HJ-307906 valve rebuild kit be replaced?

The kit is used when the A-Jet On/Off Valve requires rebuilding because internal components such as seals, stems, or seats have become worn or otherwise require replacement.

Regular inspection and maintenance of the A-Jet cutting head can help identify worn valve components before they contribute to operating problems or unnecessary downtime.

8. Can I replace the entire A-Jet On/Off Valve instead of rebuilding it?

A rebuild kit provides a way to service the valve by replacing its applicable internal components. Whether rebuilding or replacing the complete valve is appropriate depends on the condition of the valve assembly and the maintenance procedure being followed.

9. Does HJ-307906 include the complete A-Jet On/Off Valve?

No. HJ-307906 is a rebuild kit, not a complete On/Off Valve assembly.

10. What other parts are associated with the HJ-307906 rebuild kit?

Other A-Jet On/Off valve components commonly listed alongside HJ-307906 include:

  • HJ-307305— A-Jet Nozzle Stem Seat
  • HJ-307791 — A-Jet Nozzle Inlet Valve Stem
  • HJ-307792 — A-Jet On/Off Valve Repair Kit
  • HJ-307854 — A-Jet PTO Valve Rebuild Kit

 

Why Choose HJ Waterjet?

HJ Waterjet replacement parts are engineered to deliver premium-quality, reliable performance, precision fit, and long-lasting durability at a competitive price. Precision manufactured to exact specifications using high-quality materials and tight tolerances, our components are designed for compatibility with OEM waterjet systems and demanding industrial applications. By focusing on quality, precision, and value—not expensive branding—we help manufacturers reduce maintenance costs, minimize downtime, and maximize productivity without compromising performance or reliability. When precision matters, HJ Waterjet delivers the quality, reliability, and value professionals trust. Premium Performance Without the Premium Price

** HJ WATERJET IS IN NO WAY AFFILIATED WITH GMA, EBBCO, KENNAMETAL, KMT, FLOW, BFT, H2O, OMAX, ACCUSTREAM, HYPERTHERM OR TECHNI. PART NUMBERS ARE FOR CONVENIENCE ONLY.

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