Titan PowrLiner 4500 Pump Assembly Parts (Fluid Pump / Hydraulic Section)
This page covers replacement parts for the pump assembly on the Titan PowrLiner 4500—a field and pavement line striping unit used for athletic fields, parking lots, and roadway-style marking work. If you’re maintaining a Titan sprayer used as a Field & Pavement Marking Sprayer, this section is where you source the pump-assembly hardware and sealing components that support consistent material flow.
The PowrLiner 4500 service documentation describes the unit as a high-pressure airless sprayer with PermaStroke Technology and a hydraulic fluid displacement pump system, and it includes a dedicated spare parts list for the pump assembly.
What this parts page fits and where it’s used
- Fits: Titan PowrLiner 4500 pump assembly (PowrLiner 4500 line striping sprayer platform).
- Used for: maintaining pump/hydraulic-area components involved in striping performance on field and pavement marking jobs.
What you’ll find in the Pump Assembly parts list
This category is focused on the pump assembly items shown on the diagram/listing—components like covers, sealing housings, hydraulic-housing related parts, o-rings, fittings, plugs, and associated fasteners. Examples shown on the page include a front cover with label, sealing housing, hydraulic housing (machined), o-ring, oil dip stick, screw plug, and multiple screws/fittings.
How these parts relate to your striping setup
On a PowrLiner 4500, the pump assembly is part of the overall Hydraulic system that supports material delivery and pressure control during striping. When troubleshooting a striping rig, the pump-area parts on this page are commonly referenced alongside jobsite-wear items in the spray path, such as the Gun Assembly, Trigger Assembly, and accessories tied to aiming/line control like a Line Pointer. The sprayer’s service manual also separates parts lists for related assemblies (filter, inlet/outlet valve, siphon system, gun holder), which helps you confirm you’re ordering from the correct diagram section.
Worker-proof ordering tips (quick, practical)
- Match your machine to the PowrLiner 4500 diagram section before adding parts to cart.
- Use the item numbers on the page to avoid mixing pump-assembly parts with assemblies like Siphon hose, Bleed line Assembly, or Bleed Valve Assembly that may be listed under other sections.
- If you’re unsure, open the individual part listing from the pump assembly page and confirm the “fits” notes shown there.
Need the right parts fast for your Titan paint sprayer line striper? Use the diagrams and part listings here, or browse more PowrLiner categories at https://alltitanparts.com, you’re in the right place for correct-fit parts lookup.













