Titan Airless Sprayer Technical Guide
What Are Titan EPIC Pumps? Complete Piston, Packing and Parts Guide
Titan EPIC pumps are serviceable piston-type fluid sections used on an earlier generation of professional Titan airless paint sprayers. The sprayers are older, but important EPIC pump components did not simply vanish: several piston and packing designs continued into later Titan XC, i, IX, Impact, RentSpray and related machines.
What is a Titan EPIC pump?
A Titan EPIC pump is the reciprocating fluid section fitted to a Titan EPIC-series airless sprayer. An electric motor or gasoline engine supplies the drive power, but the lower pump performs the coating-handling work. Its piston travels through upper and lower packings, while inlet and outlet check valves control one-way fluid movement. That action draws coating from the container, pressurizes it and sends it through the filter, hose, gun and spray tip.
The phrase EPIC pump is often used loosely in repair shops. It can mean the entire sprayer, the removable lower fluid section, or the internal piston-and-packing design. For parts identification, those meanings must not be mixed. A motor, gearbox, filter block and fluid section are separate assemblies, and the word EPIC by itself is not enough to identify any one replacement component.
How an EPIC airless piston pump works
The rising piston creates a pressure difference that allows coating to enter through the foot or inlet valve.
The inlet and outlet balls, seats and cages open or close according to the pressure on each side.
The piston displaces coating through the outlet path and toward the manifold, hose and spray gun.
The upper and lower packings seal around the moving piston while permitting its repeated stroke.
Because the rod and packings work against one another, they should be inspected as a system. A scored or worn piston can damage new packings; badly worn packings can leak, lose pressure and permit coating to travel where it should not. Valve contamination can create similar symptoms, which is why accurate diagnosis matters before parts are replaced.
Which sprayers belong to the Titan EPIC family?
The EPIC name covered several electric and gas-powered professional airless sprayers. Documented models include the EPIC 440E, 447EX, 447HPX, 660EX, 660HPX, 690GX, 690HPG and 1200HPG. Other period literature also references models such as the 440HP and 1100HPX. Model names, voltage versions, frame styles and pump-only versus complete-unit numbers can differ, so the nameplate remains the controlling identification source.
| EPIC model | Power/platform | Maximum working pressure* | Maximum tip size shown in period specifications* |
|---|---|---|---|
| 440HP | Electric piston sprayer | 3,200 psi | .021 in., one gun |
| 447HPX | Electric piston sprayer | 3,200 psi | .023 in., one gun |
| 660HPX | Electric piston sprayer | 3,200 psi | .025 in., one gun |
| 690HPG | Gas-powered piston sprayer | 3,200 psi | .025 in., one gun |
| 1100HPX | Higher-output piston sprayer | 3,200 psi | .031 in., one gun; .021 in., two guns |
*Period summary specifications are useful for identifying the capacity class, not for selecting repair parts. Confirm the exact manual and configuration for the machine being serviced.
The essential distinction: EPIC is not one universal fluid section
The most useful way to understand EPIC service parts is to separate two overlapping generations. This is a parts-identification framework, not permission to interchange assemblies.
Earlier E/EX-style family
Frequently associated with piston rod 700-580A, upper packing 700-603A, lower packing 700-601A and complete repacking kit 702-130. Commonly documented applications include EPIC 440E, 447EX, 660EX and 690GX.
HPX and later-platform family
EPIC HPX diagrams show 704-series piston components, including 704-552A and 704-560, together with upper and lower packing assemblies and, on documented configurations, repacking kit 730-401. The same numbered components appear across selected later Titan machines.
Do not assume that 702-130 and 730-401 are substitutes. A repacking kit is selected by the exact fluid-section parts list, not merely by pressure rating, visual resemblance or an EPIC decal.
Titan EPIC pistons, packings and repacking kits
The following list focuses on the numbers most often encountered in EPIC lower-pump service. Superseded numbers are included because older manuals, shelf stock and used machines may carry the earlier marking.
| Titan number | Part type | Number history | Documented EPIC association | Identification note |
|---|---|---|---|---|
| 700-580A | Piston rod | Replaces 700-580 | 440E, 447EX, 660EX, 690GX family | Associated with the earlier E/EX-style fluid section |
| 704-552A | Piston assembly | 704-series assembly | Shown in HPX fluid-section listings, including 660HPX | Also cataloged across selected later Impact and Advantage machines |
| 704-560 | Complete piston assembly | 704-series component | Shown in 447HPX/660HPX-related fluid-section listings | Appears in selected 540, 640, 660XC and related applications |
| 700-603A | Upper packing assembly | Replaces 700-603 and 0509125A | Used across documented E/EX and HPX fluid sections | Check the parts list because an individual packing can span more models than a complete kit |
| 700-601A | Lower packing/seal assembly | Replaces 700-601 and 0507272A | Used across multiple EPIC fluid sections | Also appears in selected XC, Impact, PowrLiner and RentSpray parts records |
| 700-821 | PTFE ring/seal | Also cross-referenced as 0509581 in parts listings | Appears in HPX-style fluid-section diagrams | A supporting seal, not a complete repacking kit |
| 702-130 | Complete repacking kit | Common legacy EPIC kit | 440E, 447EX, 660EX, 690GX | Do not describe it as fitting every EPIC pump |
| 730-401 | Complete repacking kit | Later fluid-section kit | Documented for 447HPX/660HPX configurations | Also documented on 660XC, 690HPG and other related platforms |
Genuine Titan OEM Parts
Shop EPIC pump pistons and packings
Select the exact part number confirmed by your sprayer’s model-specific fluid-section diagram. Each button opens the corresponding AllTitanParts.com product page, where availability and ordering options are shown.
Fitment reminder: Do not order solely because a part appears on an EPIC-related page. Confirm the complete model, serial-number revision and diagram callout first.
Are EPIC pistons and packings still used in newer Titan sprayers?
Yes—but only by exact part number. This is one of the most important facts about the EPIC platform. Titan carried several service components forward into sprayers introduced after the EPIC line. As a result, an EPIC-era piston or packing may remain available because the identical numbered component is also cataloged for a later machine.
Examples found in model and parts records include:
- 704-552A piston assembly: cataloged for EPIC 660HPX and selected later Titan machines, including Impact 410, Impact 440, Impact 540 and Impact 640 applications, as well as Advantage 400/500 records.
- 704-560 complete piston assembly: associated with EPIC HPX equipment and later 540/540IX, 640I/640IX, 660XC and related fluid sections.
- 700-603A upper packing: found in EPIC fluid sections and selected later 440XC-style pump records.
- 700-601A lower packing: appears in EPIC applications and selected Titan 440/540/640, 660XC, PowrLiner 3100 and RentSpray 450 records.
- 730-401 repacking kit: documented for EPIC HPX machines and later related platforms such as the 660XC.
How to tell whether an EPIC pump needs packings, a piston or valve service
| Symptom | Possible causes | Inspection direction |
|---|---|---|
| Coating leaks at the upper pump area | Worn upper packing, damaged sealing surface or incorrect assembly | Relieve pressure, inspect packing condition and check the piston surface for scoring |
| Pump cycles but pressure is weak or unstable | Packing bypass, worn piston, leaking inlet/outlet valve or debris on a seat | Test valve sealing and inspect piston/packing wear before assuming the pressure control has failed |
| Sprayer will not prime | Stuck or contaminated inlet valve, air leak in suction path, dry or damaged packings | Check the siphon path, inlet ball and seat, prime valve and packing condition |
| Pressure drops when the gun is triggered | Worn pump components, obstructed filters, oversized/worn tip or insufficient material supply | Inspect from material supply through pump, filters, hose, gun and tip |
| New packings fail quickly | Scored piston, incorrect packing orientation, dry running, contamination or unsuitable cleaning | Inspect the rod closely and follow the model-specific packing installation procedure |
Never test for a leak with your hand. Airless equipment can produce injection injuries that initially look minor but require immediate emergency medical treatment. Before inspection or service, shut the sprayer off, disconnect the power source, engage the gun safety and follow the complete pressure-relief procedure in the manual for that exact model.
Why replacing packings alone may not solve the problem
Packings are wear components, but they do not operate in isolation. If the piston sealing surface has grooves, corrosion or coating buildup, installing fresh packings around it can produce only a temporary repair. Likewise, a dirty outlet ball or damaged seat can cause pressure loss that resembles packing bypass. A careful service decision therefore considers the piston, upper and lower packings, valve balls, cages, seats, O-rings, pump housing and lubricant condition together.
Dry running is particularly hard on a piston pump. The EPIC 660HPX instructions warn against operating the sprayer without fluid and direct the operator to maintain piston lubricant. Correct flushing and storage also matter: dried coating and corrosion can damage sealing surfaces before the next job begins.
How to identify and order the correct Titan EPIC pump parts
- Read the complete model name. Record 440E, 447EX, 447HPX, 660EX, 660HPX, 690GX or the exact designation shown—not simply “EPIC.”
- Record the serial number and electrical version. Production revisions and 120V/230V configurations can affect the correct diagram.
- Identify the assembly. Confirm whether the required item belongs to the fluid section, gearbox, filter block, siphon assembly, pressure control or frame.
- Open the exact exploded diagram. Find the numbered callout for the component.
- Match the full part number. Preserve prefixes, suffixes and replacement-number notes such as 700-580 to 700-580A.
- Verify before substituting. A similar photograph or shared description such as “upper packing” is not proof of fitment.
AllTitanParts.com organizes genuine Titan parts by machine and assembly, allowing owners and technicians to move from the Titan EPIC sprayer-parts directory to the exact model and fluid-section diagram. You can also browse Titan piston rods, Titan repacking kits and the site’s paint-sprayer manuals and diagrams.
The bottom line
Titan EPIC sprayers are legacy machines, but many of their service parts remain relevant because Titan reused proven piston and packing components in later platforms. The safe, accurate way to buy is not to search for a generic “EPIC pump kit.” Start with the complete model, locate the correct fluid-section diagram and match the exact piston, packing or kit number. That approach protects the machine, reduces incorrect orders and keeps serviceable EPIC equipment working.
Titan EPIC pump frequently asked questions
Is EPIC a type of pump or a Titan model series?
EPIC is a Titan sprayer-series name. The machines use reciprocating airless piston pumps, but there is no single universal fluid section that fits every EPIC model.
Are Titan EPIC pumps discontinued?
The EPIC sprayers are legacy or discontinued models. Many genuine service components remain available, however, and selected piston and packing numbers were carried into later Titan sprayers.
What piston rod is used in an EPIC 440E or 447EX?
The earlier E/EX-style fluid section is commonly documented with Titan piston rod 700-580A, which replaces 700-580. Confirm the exact diagram before ordering because model and revision still control fitment.
What packing kit fits the EPIC 440E, 447EX, 660EX and 690GX?
Titan 702-130 is the commonly documented complete repacking kit for those earlier E/EX-style applications. It should not be labeled as the kit for every EPIC pump.
What repacking kit is associated with the EPIC 447HPX and 660HPX?
Documented HPX configurations use Titan 730-401. Verify the pump diagram and serial revision because an EPIC model name alone is not sufficient parts identification.
Do newer Titan Impact sprayers use EPIC-era parts?
Some later Titan sprayers share individual 704-series piston or 700-series packing numbers with EPIC-era fluid sections. That does not make all complete pumps or repacking kits interchangeable. Compatibility must be established at the part-number level.
Should I replace the piston when I repack the pump?
Not automatically. Inspect the piston’s sealing surface for scoring, wear, corrosion and coating buildup. A damaged rod can ruin new packings, while a sound piston may remain serviceable. Follow the model-specific service limits and procedure.
Where can I find a Titan EPIC parts diagram?
AllTitanParts.com provides an EPIC model directory with assembly-level exploded diagrams for fluid sections, gearboxes, filter blocks, motors, siphon systems and frame configurations.