Minor Rebuild Kit | EndoroMax | HJ-308308
The HJ WATERJET Minor Maintenance Kit (HJ-308308) is a precision-engineered preventive service maintenance kit designed to maintain optimal performance in OMAX EnduroMAX intensifier pumps.
The HJ-308308 EnduroMAX Pump Minor Maintenance Kit includes essential wear components required for routine maintenance intervals, helping restore proper sealing, check valve performance, and pressure consistency without the need for a full rebuild.
EnduroMAX pumps are designed around a structured maintenance cycle, requiring alternating minor and major rebuilds, beginning with a minor rebuild first. Using the HJ-308308 EnduroMAX Pump Minor Maintenance Kit at the correct interval ensures maximum pump efficiency, reliability, and service life.
Key Benefits
- Prevents Downtime – Replace wear components before failure
- Maintains Peak Performance – Stable pressure output
- Extends Pump Life – Protects major components
- Reduces Maintenance Costs – Avoids full rebuild frequency
Applications
- Abrasive waterjet cutting systems
- High-production manufacturing
- Metal, stone, and composite cutting
- Industrial CNC waterjet operations
Frequently Asked Questions | HJ-308308
- What is HJ Waterjet part HJ-308308?
The HJ Waterjet HJ-308308 is a direct replacement part for OMAX 308308 EnduroMAX Pump Minor Maintenance Kit, designed for routine maintenance and rebuilding of the EnduroMAX pump.
- What pump does HJ-308308 fit?
It is specifically used on OMAX EnduroMAX (E-Max) pumps.
- What is included in the HJ-308308 kit?
The kit includes check-valve components, seals, O-rings, seal-retainer assemblies, extreme-pressure lubricant, and a manifold filter assembly. The documented contents include HJ-308104, HJ-300640, HJ-200904, HJ-202398, HJ-200913, HJ-300745, HJ-200377, HJ-302948, HJ-202496, and HJ-304104.
- Is HJ-308308 a minor or major rebuild kit?
It is the minor maintenance/minor rebuild kit. The larger HJ-308281 is the EnduroMAX major maintenance/rebuild kit and includes one HJ-308308 kit plus (3) three HJ-308107 backup-ring assemblies.
- When should I replace the HJ Waterjet HJ-308308 kit?
It is generally used during routine pump maintenance when seals, check-valve components, and related wear parts need replacement. Following the pump manufacturers maintenance schedule is recommended.
- What are the common symptoms that indicate the HJ-308308 kit may be needed?
Common indicators can include pressure instability, reduced cutting performance, water leakage, excessive pump cycling, or deterioration of seals/check-valve components. These symptoms can have multiple causes, so the pump should be inspected before replacing the kit.
- Does HJ-308308 include the major pump components?
No. It is intended for minor maintenance and does not contain all components included in the HJ-308281 major maintenance kit.
- Can individual components in the HJ-308308 kit be replaced separately?
Yes. Several components are available individually, including the HJ-200904 Ceramic Ball, HJ-202398 U-Cup Seal, HJ-200913 Snap Ring, HJ-300640 Check-Valve Seat, HJ-300745 Seal-Retainer Sleeve, and HJ-302948 Seal / Retainer Assembly.
- Is HJ-308308 the same as a minor rebuild kit?
It is commonly marketed as a Minor Rebuild Kit / Minor Maintenance Kit for the EnduroMAX.
- Is HJ-308308 the same as HJ-302700?
No. Both are minor maintenance/rebuild kits, but HJ-308308 is for the EnduroMAX/E-Max pump, while HJ-302700 is associated with other OMAX pump configurations.
- What is the difference between HJ-308308 and HJ-308281?
HJ-308308 = Minor Maintenance/Rebuild Kit
HJ-308281 = Major Maintenance/Rebuild Kit
The HJ-308281 kit contains (1)one HJ-308308 plus (3) three HJ-308107 backup-ring assemblies.
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