Aqualon 11952 – Plunger Assembly Kit – Replaces OMAX 304885
Aqualon Part Number: 11952
Replaces OMAX Part Number(s): 304885
Other References: None verified
Includes: 3 × Plunger Assemblies (OMAX 304399 / 303160)
Stock Status: In stock (Europe) – Estimated 2 week lead time. Ships from Melbourne, Australia.
Overview
The Aqualon 11952 – Plunger Assembly Kit – Replaces OMAX 304885 contains three complete plunger assemblies used in legacy OMAX and MAXIEM direct-drive pumps. These plungers provide the precision-ground sealing surface required to generate high pressure within the wet end and support consistent pump performance across all three cylinders.
What’s Included
This kit is configured to replace OMAX 304885 and contains the following verified components.
• 3 × Plunger Assemblies (OMAX 304399 / 303160)
Purpose / Why It Matters
The plunger is the primary moving component in the wet end, converting crankshaft motion into high-pressure water displacement. Wear, scoring, or surface damage on the plunger increases seal wear, reduces pressure stability, and leads to leakage or inconsistent cutting performance. Installing the Aqualon 11952 kit replaces all three plungers at once, restoring a clean sealing surface, reliable pressure generation, and uniform operation across the entire pump.
Compatibility
Aqualon 11952 replaces OMAX 304885 for legacy OMAX direct-drive pumps and MAXIEM pump models that specify this OEM plunger kit.
It is not used in EnduroMAX pumps.
When to Replace / Service Indicators
Visible scoring, pitting, or corrosion on the plunger surface
Frequent dynamic-seal failures
Pressure instability or slow pressure rise
Reduced cut quality or inconsistent piercing
Replacement during major wet-end maintenance
Common Uses
Full wet-end rebuilds on OMAX and MAXIEM pumps
Corrective replacement after plunger wear or seal damage
Preventative maintenance in high-duty production environments
Why Choose Aqualon
Aqualon plunger assemblies are manufactured to meet the functional requirements of the OEM components they replace. Each plunger provides the precision geometry, alignment, and surface finish needed for stable high-pressure performance in OMAX and MAXIEM pump systems.






