SprayTech equipment turns up in mixed contractor fleets alongside Titan equipment. Understanding the parts picture for SprayTech models prevents the ordering confusion that comes from assuming parts cross between brands.
SprayTech and Titan equipment are sold side by side at AllTitanParts.com, but the part numbers are model-specific and should always be confirmed against the diagram for your exact model before ordering.
SprayTech Model Overview
ED655 — A Diaphragm-Pump Finishing Sprayer
The ED655 is a compact electric airless sprayer used for fine finishing. It is an airless diaphragm pump, not a piston pump: the pump head has a diaphragm, a diaphragm ring and inlet and outlet valves, and there are no piston rod packings to replace. That means packing and piston rod advice for Impact or Epic sprayers does not apply to it.
The original ED655 and the ED655 Plus have different pump layouts, so their part numbers are not interchangeable. Confirm the part number against the diagram for your exact version at AllTitanParts.com rather than assuming it matches Titan Impact components, and follow the ED655 manual for cleaning, storage and service. Our SprayTech paint sprayer parts pages list parts by model and diagram.
EP and EPX Series — Piston-Pump Models
The SprayTech EP and EPX models are piston-pump airless sprayers. They are a separate series from Titan Impact and Epic, so do not mix parts between them. Service intervals and component details are model-specific, so follow the manual for your exact unit.
Parts sourcing for the EP/EPX series requires matching against the specific model designation, because each model has its own fluid section configuration. For any EP or EPX model, always verify the exact part number against the OEM diagram for that specific unit before ordering. Repacking kits should be matched to the exact model, not assumed to be universal across a series.
Maintenance That Applies Across All SprayTech Models
For piston-pump models, the habits that extend fluid section life are consistent: keep the wet cup filled during operation, flush thoroughly after every job with the appropriate solvent, clean the filters regularly during active use, and never store the machine with water sitting in the fluid section. For the ED655 and other diaphragm pumps, clean the hopper filter and follow the storage steps in the manual instead. Always use the pressure relief procedure in your manual before servicing.
On piston-pump models, pressure pulsing often points to valve wear, material in the wet cup points to packing wear, and slow priming points to suction system issues or worn valves. The same symptom-to-component logic applies to Titan electric airless sprayer parts; on the ED655, worn or stuck inlet and outlet valves and a clogged hopper filter are the usual causes of no prime or low pressure.
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The OEM parts referenced in this guide:
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