Husky 55K Direct Drive End Cap

An OEM replacement component designed for the water-end section of Flow direct-drive Husky pump systems. It helps close and support the manifold assembly, maintaining proper sealing alignment and structural containment during repeated high-pressure cycling. Replace the end cap when sealing surfaces, threads, or mounting interfaces show wear, corrosion, cracking, or other damage that could compromise pump performance.

Related products:

• High-pressure Cylinder (013387-1) — works with the manifold and end-cap assembly in the Husky 55K high-pressure pump section.
• Check Valve Outlet Poppet Cage (006101-1) — supports outlet check valve function and should be inspected during water-end service.
• Manifold Back-up Ring (006112-1) — helps support sealing integrity around the manifold assembly.
• Direct Drive Manifold Insert 1.130 Inch (006114-1) — fits within the manifold area and is commonly checked when servicing related end-cap components.
• Manifold Adapter Nut (006113-1) — secures related manifold hardware and helps maintain proper compression in the assembly.

Service tip: Before installing the replacement end cap, clean and inspect the manifold bore, sealing faces, adapter nut, and adjacent check valve components. Proper alignment and clean sealing surfaces are critical for preventing leakage and uneven loading in the high-pressure pump section.