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Titan 185-500 Major Pump Service Kit

$685.52
$816.10
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Part #: 185-500

OEM Titan Major Pump Overhaul Kit

Titan 185-500 Major Pump Service Kit is a comprehensive OEM overhaul kit that includes the piston rod assembly along with all seals and packings, designed to restore full pumping performance on compatible Hydra M and Hydra Pro sprayers when minor service is no longer sufficient.

Brand: Titan / Hydra Part #: 185-500 Type: Major Pump Service Kit Includes: Piston Rod Assembly

Compatibility Table

Brand Compatible Titan Machine Part Number Serviced With Technical Detail
Titan / Hydra Hydra M; Hydra Pro 2000/4000; Hydra M Super; Hydra Pro Super; 0528925N 2000/4000 185-500 Cylinder bore inspection, inlet/outlet valves, fluid filter Major overhaul kit with piston rod assembly for scored rod.

OEM major kit addresses root cause of pressure loss by replacing the worn piston rod, restoring like-new pump performance.

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Titan Major Pump Overhaul Kit

Titan 185-500 Major Pump Service Kit for Hydra M and Hydra Pro

Titan 185-500 is a comprehensive OEM major pump service kit designed for a complete overhaul of the fluid section on compatible Hydra M and Hydra Pro series airless paint sprayers. Unlike minor kits, this major kit includes the piston rod assembly, a critical wear component that operates in direct contact with the packings. When the rod surface becomes scored, pitted, or worn beyond tolerance, replacing only the seals will not restore proper pump performance.

OEM: Titan / Hydra Part #: 185-500 Type: Major Pump Service Kit Includes: Piston Rod Assembly
Detail Technical / Commercial Information
Product Overview OEM Titan/Hydra major pump service kit for comprehensive fluid section overhaul on compatible Hydra M and Hydra Pro sprayers. Includes piston rod assembly in addition to seals, packings, and O-rings.
Function Provides complete seal restoration (replaces all seals, packings, and O-rings in the fluid section), piston rod replacement (addresses scoring or surface wear), and full performance recovery (restores pressure output and eliminates leakage when a minor kit is insufficient).
Kit Contents Upper and lower packing, vee packing, O-rings, seals, and the complete piston rod assembly.
Industrial Applications Professional sprayer repair, complete fluid section overhaul, abrasive coating applications, and rental fleet equipment restoration.
Compatible Titan Models Hydra M and Hydra Pro 2000/4000; Hydra M and Hydra Pro Super; 0528925N 2000/4000.
OEM Part Number 185-500 Major Pump Service Kit. Alternate part number 0185-500.
Related Parts Commonly Serviced Together Cylinder or pump housing (inspect bore for scoring), inlet and outlet valves (check for wear or debris), and fluid filter/strainer (replace or clean to protect new components).
Common Problems Solved Persistent pressure loss after minor kit installation, visible scoring or pitting on the piston rod, rapid seal failure within a short period, and extended service intervals requiring comprehensive overhaul.
When Replacement Is Recommended Use when minor seal replacement does not resolve pressure loss or bypass issues, when the piston rod shows visible scoring or wear, when new seals fail quickly, or when the pump has exceeded normal service life and requires comprehensive overhaul.
Service Guidance Installation requires full disassembly of the pump fluid section. Always inspect the cylinder bore for scoring before reassembly. Clean all fluid passages and replace any inlet or outlet valves showing wear. Proper lubrication of seals and the piston rod during installation is essential to prevent initial wear and ensure correct seating.
OEM & Brand Information Genuine Titan/Hydra OEM component designed for correct fitment in compatible spray systems.
Commercial Benefits Addresses the root cause of pump failure rather than just symptoms, restores like-new performance, prevents more extensive damage to the cylinder housing, and extends overall equipment life.

The 185-500 Major Pump Service Kit is the correct choice when a minor service kit no longer resolves pump performance issues. The key differentiator is the inclusion of the piston rod assembly. Over extended service intervals or when spraying abrasive materials, the piston rod can develop surface damage that compromises sealing integrity. If the rod is scored or worn, installing new seals alone will not restore pressure-the worn rod will quickly destroy the new packings. The 185-500 kit addresses this root cause by providing a new piston rod along with all sealing components. Before performing a major overhaul, inspect the cylinder bore for scoring; if the bore is also damaged, additional components may be required. For high-usage facilities or those spraying abrasive coatings, keeping a 185-500 kit on hand allows immediate response when minor service proves insufficient.

Frequently Asked Questions

Quick contractor-focused answers for confirming fitment, function, and service value.

Common Questions
What is the Titan 185-500 Major Pump Service Kit used for?

It is a comprehensive overhaul kit for the fluid section of compatible Hydra M and Hydra Pro sprayers, including the piston rod assembly along with all seals and packings.

Which Titan machines use the 185-500?

Compatible with Hydra M, Hydra Pro 2000/4000, Hydra M Super, Hydra Pro Super, and 0528925N 2000/4000.

What makes this a major kit versus a minor kit?

The major kit includes the piston rod assembly, which minor kits do not. This is critical when the rod surface is scored or worn and new seals alone will not restore performance.

When should the major kit be used instead of a minor kit?

Use when minor seal replacement does not resolve pressure loss, when the piston rod shows visible scoring or wear, when new seals fail rapidly, or when the pump requires a comprehensive overhaul.

What is the alternate part number?

The alternate part number is 0185-500.

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