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PowrCoat 745 Fluid Pump Assembly (155-559) Parts

PowrCoat 745 Fluid Pump Assembly (155-559) Parts
Titan 155-907 Pump Block
Titan 155-907 Pump Block

Item No: 1

Part #: 155-907

Official Titan / Speeflo Pump Block Titan 155-907 Pump Block is OEM fluid pump hardware for C...

Retail Price: $823.90
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Titan 155-053A OR 155-053 Packing Set Leather
Titan 155-053A OR 155-053 Packing Set Leather

Item No: 2A

Part #: 155-053A

  OEM Titan Packing Set Titan 155-053A Packing Set Leather is an OEM leather packing set de...

Retail Price: $140.80
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Titan 182-906 Upper Packing Spring
Titan 182-906 Upper Packing Spring

Item No: 3

Part #: 182-906

  OEM Titan Pump Component Titan 182-906 Upper Packing Spring is an OEM component that main...

Retail Price: $45.60
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Titan 155-010 Washer
Titan 155-010 Washer

Item No: 4

Part #: 155-010

Official Titan / Speeflo Pump Washer Titan 155-010 Washer is OEM fluid pump hardware for Comm...

Retail Price: $46.60
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Titan 155-982 Displacement Rod
Titan 155-982 Displacement Rod

Item No: 5

Part #: 155-982

Official Titan / Speeflo Displacement Rod Titan 155-982 Displacement Rod is OEM fluid pump ha...

Retail Price: $250.70
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Titan 155-009 Washer
Titan 155-009 Washer

Item No: 6

Part #: 155-009

Official Titan / Speeflo Pump Washer Titan 155-009 Washer is OEM fluid pump hardware for Comm...

$17.10
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Titan 155-001 Spring
Titan 155-001 Spring

Item No: 7

Part #: 155-001

Official Titan / Speeflo Pump Washer Titan 155-009 Washer is OEM fluid pump hardware for Comm...

$28.70
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Titan 155-053A OR 155-053 Packing Set Leather
Titan 155-053A OR 155-053 Packing Set Leather

Item No: 8A

Part #: 155-053A

  OEM Titan Packing Set Titan 155-053A Packing Set Leather is an OEM leather packing set de...

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Titan 155-225 Stainless Ball
Titan 155-225 Stainless Ball

Item No: 9

Part #: 155-225

Official Titan / Speeflo Stainless Pump Ball Titan 155-225 Stainless Ball is OEM fluid pump v...

$6.00
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Titan 155-921 Piston Seat Assembly
Titan 155-921 Piston Seat Assembly

Item No: 10

Part #: 155-921

Official Titan / Speeflo Piston Seat Assembly Titan 155-921 Piston Seat Assembly is OEM fluid...

Retail Price: $536.00
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Titan 891-373 O-ring
Titan 891-373 O-ring

Item No: 11

Part #: 891-373

Official Titan / Speeflo O-Ring Seal Titan 891-373 O-Ring is OEM sealing hardware for Command...

$19.80
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Titan 155-932 Pump Cylinder
Titan 155-932 Pump Cylinder

Item No: 12

Part #: 155-932

Official Titan / Speeflo Pump Cylinder Titan 155-932 Pump Cylinder is an OEM fluid section co...

Retail Price: $276.60
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Titan 174-112 Ball Stop
Titan 174-112 Ball Stop

Item No: 13

Part #: 174-112

Titan Fluid Pump Inlet Valve Component The Titan 174-112 Ball Stop positions the inlet ball and...

Retail Price: $44.80
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Titan 174-102 Ball Cage
Titan 174-102 Ball Cage

Item No: 14

Part #: 174-102

Official Titan / Speeflo Ball Cage Titan 174-102 Ball Cage is OEM fluid pump valve hardware f...

$29.80
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Titan 0509707 Foot Valve Ball (Replaces Titan 178-700 and Titan 0349477)
Titan 0509707 Foot Valve Ball (Replaces Titan 178-700 and Titan 0349477)

Item No: 15

Part #: 0509707

Titan Fluid-Pump Inlet Valve Component The Titan 0509707 Foot Valve Ball creates the inlet-valv...

Retail Price: $46.50
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Titan 155-991 Foot Valve Assembly
Titan 155-991 Foot Valve Assembly

Item No: 16

Part #: 155-991

Official Titan / Speeflo Foot Valve Assembly Titan 155-991 Foot Valve Assembly is OEM fluid p...

Retail Price: $740.70
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PowrCoat 745 High-Pressure Fluid Section · Pump 155-559

Rebuild the PowrCoat 745 Fluid Pump with Verified 155-559 Parts

Shop diagram-matched components for the PowrCoat 745 Fluid Pump Assembly 155-559, including the lower pump block, packing sets, washers, displacement rod, piston check components, cylinder seals, hard-chrome cylinder, inlet ball hardware, and complete foot valve. Each retained part appears on the supplied category and agrees with Titan’s official 155-559 parts table.

01
Official 155-559 Diagram
Verified positions for PowrCoat 745 and 960.
02
Complete Fluid Path
Upper packings, piston valve, cylinder, and foot valve.
03
Diagnosis Before Parts
Separate suction, valve, packing, and hard-part faults.
04
Confirmed Product URLs
Only live products from the supplied category are linked.
Assembly Overview

How the 155-559 Pump Builds and Controls Coating Pressure

This page is an exploded fluid-pump replacement-parts category for PowrCoat 745 models 0533745C and 0533745W. Titan also documents the same pump on PowrCoat 960 models. On the 745, the motor-pump ratio is 45:1.

Air-motor motion drives the 155-982 displacement rod through upper and lower packing sets. The piston ball and seat control internal transfer during alternating strokes, while the foot-valve ball, cage, stop, and housing admit coating and prevent reverse flow.

Main Functions

Functions Supported by the Fluid Pump Assembly

  • Draws coating through the foot valve during intake.
  • Seals reciprocating movement with upper and lower packings.
  • Controls one-way flow through inlet and piston check valves.
  • Generates high-pressure material delivery through the pump stroke.
  • Transfers air-motor movement into measured fluid displacement.
Service Applications

When Technicians Use This 155-559 Pump Diagram

  • Top-packing leakage appears around the displacement rod.
  • One pump stroke becomes faster than the other.
  • The pump cycles but fails to prime or deliver coating.
  • Pressure falls because a ball or seat does not seal.
  • A scheduled 1,000-hour fluid-section inspection is due.
Troubleshooting

PowrCoat 745 Fluid-Pump Symptoms and Diagnostic Priorities

Relieve pressure first. Check coating viscosity, container level, siphon condition, bleed valve, filters, gun, tip, hose, and air supply before opening the pump.

Operating symptom Inspection points Recommended action
Pump goes up slowly and down fast 0509707 inlet ball, 174-102 cage, 174-112 stop, 155-991 housing, siphon leaks, coating viscosity, and upper packings Clean and water-test the foot valve before replacing the ball or packing set.
Pump goes up fast and down slowly 155-225 piston ball, 155-921 seat, lower packing set, spring, washer, rod threads, and contamination Test the piston ball and seat for sealing and inspect the lower packings before replacement.
Pump cycles rapidly without material material supply, siphon hose, 155-991 foot valve, 0509707 ball, coating thickness, inlet restriction, and bleed valve Restore material supply and clear the intake path before replacing Titan 155-991 Foot Valve Assembly.
Fluid leaks from the top packing 155-053A upper packings, 155-982 rod, 155-010 washer, pump-block bore, lubricant condition, and chrome scoring Inspect the rod and bore before replacing Titan 155-053A Packing Set.
Pump moves slowly with gun closed loose connections, bleed valve, lower packings, piston ball, inlet ball, both seats, and O-ring seals Tighten and clean the system, then isolate ball or packing leakage before replacing components.
New packings fail or chatter 155-982 rod, 155-932 cylinder, packing orientation, lubricant, swelling, spring stack, washer placement, and overtightened threaded joints Inspect hard-chrome surfaces and assembly sequence before installing another packing set.
Verified Replacement Components

High-Value PowrCoat 745 Fluid-Pump Parts

Only parts listed on the supplied page and confirmed in Titan’s 155-559 table are included.

Pump Structure

Titan 155-907 Lower Pump Block

The official position-1 lower pump block supports the upper packing cavity, cylinder connection, displacement rod alignment, and fluid routing.

View Titan 155-907
Upper and Lower Packing Option

Titan 155-053A Packing Set

Titan lists 155-053A as the leather/polyethylene packing option at both the upper and lower packing positions in the 155-559 pump.

View Titan 155-053A
Upper Packing Washer

Titan 155-010 Washer

The official position-4 washer supports the upper packing and spring stack inside the pump block.

View Titan 155-010
Reciprocating Pump Rod

Titan 155-982 Displacement Rod

The hard-chrome displacement rod travels through the packing sets and transfers air-motor motion into fluid displacement.

View Titan 155-982
Lower Packing Washer

Titan 155-009 Washer

The official position-6 washer supports the lower packing spring and piston-side sealing stack.

View Titan 155-009
Lower Packing Tension

Titan 155-001 Lower Packing Spring

Maintains controlled loading on the lower packing assembly as the displacement rod cycles.

View Titan 155-001
Piston Check Ball

Titan 155-225 Stainless Ball

The position-9 piston ball opens and reseats during alternating strokes to control material movement through the piston valve.

View Titan 155-225
Piston Valve Seat

Titan 155-921 Piston Seat Assembly

Provides the seating surface for the 155-225 ball and threads to the lower end of the displacement rod.

View Titan 155-921
Cylinder Sealing

Titan 891-373 PTFE O-Ring

Two documented O-rings seal the cylinder and foot-valve interfaces without requiring excessive tightening.

View Titan 891-373
Fluid-Section Cylinder

Titan 155-932 Pump Cylinder

Provides the hard-chrome operating bore for the displacement rod, packing sets, and pressure-generating stroke.

View Titan 155-932
Inlet Ball Travel Control

Titan 174-112 Ball Stop

Limits inlet-ball travel inside the foot-valve assembly so the ball can open and reseat predictably.

View Titan 174-112
Inlet Ball Guide

Titan 174-102 Ball Cage

Guides the foot-valve ball and maintains its relationship to the inlet seat during pump cycling.

View Titan 174-102
Inlet Check Ball

Titan 0509707 Foot Valve Ball

The documented position-15 inlet ball controls material entry and prevents reverse flow during the pressure stroke.

View Titan 0509707
Pump Inlet Assembly

Titan 155-991 Foot Valve Assembly

The complete position-16 foot-valve housing supports the inlet ball, cage, stop, seal, and siphon-hose connection.

View Titan 155-991
Buying Guide

How to Select the Correct 155-559 Pump Component

STEP 1

Confirm pump 155-559

Verify PowrCoat 745 or 960 and the exact exploded diagram.

STEP 2

Identify the failed stroke

Use upstroke, downstroke, priming, leakage, and pressure behavior.

STEP 3

Inspect seals and hard parts

Check rod, cylinder, seats, block bores, and threaded interfaces together.

STEP 4

Match material and position

Confirm upper or lower packing, exact material option, quantity, and callout.

Maintenance

Maintenance Practices That Protect the 155-559 Fluid Section

  • Inspect the pump after roughly 1,000 hours or earlier when symptoms appear.
  • Use Titan 314-480 Piston Lube on the upper packing area.
  • Do not substitute oil, water, or solvent for packing lubricant.
  • Keep coating filtered and the siphon path sealed against air entry.
  • Clean and inspect both check balls and their seats during service.
  • Replace rods or cylinders when hard-chrome surfaces are grooved or damaged.
Repair Planning

Plan a Complete PowrCoat 745 Fluid-Pump Repair

For sealing problems, inspect the pump block, packing sets, spring and washer stacks, displacement rod, cylinder, O-rings, and lubricant condition as a complete dynamic sealing system.

For stroke or priming problems, inspect the 155-225 piston ball and 155-921 seat, then the 0509707 inlet ball, 174-102 cage, 174-112 stop, 155-991 foot valve, siphon hose, and coating condition. Diagnose both check-valve stages before replacing parts.

Fast Navigation

Shop Major PowrCoat 745 Fluid-Pump Components

FAQ Section

PowrCoat 745 Fluid Pump 155-559 FAQs

Verified answers for pump identification, specifications, service timing, packing selection, stroke diagnosis, lubrication, and safe repair.

What type of page is the PowrCoat 745 fluid-pump page?+
It is an exploded replacement-parts category for Titan fluid pump assembly 155-559 used on PowrCoat 745 and 960 models.
Which PowrCoat 745 models use pump 155-559?+
Titan identifies cart model 0533745C and wall model 0533745W in the 155-559 service and parts documentation.
What are the verified technical specifications of pump 155-559?+
Titan specifies a 0.976-square-inch displacement-rod area, 4-inch stroke, 3.9-cubic-inch displacement per stroke, and a 45:1 motor-pump ratio on the PowrCoat 745.
How often should the 155-series pump be serviced?+
Titan recommends routine service after approximately 1,000 operating hours or earlier when top-packing leakage develops or one stroke becomes noticeably faster.
Which packing options are documented?+
Titan lists 155-052A leather and 155-053A leather/polyethylene packing assemblies for both upper and lower positions.
Why was the spring shown on the supplied page not included?+
The supplied page lists 182-906, but Titan’s current 155-559 table specifies 155-906 at position 3. The conflicting listing was omitted because it could not be confirmed.
What causes a fast downstroke?+
Titan associates downstroke dive with a lower foot-valve ball that is not seating, material that is too viscous, a suction leak, or worn upper packings.
What causes a fast upstroke?+
An upper piston ball that does not seat or a worn lower packing set can make the pump rise quickly and descend slowly.
Why can the pump cycle without delivering coating?+
An empty container, coating too thick for the siphon, a stuck foot-valve ball, or a kinked or loose siphon hose can prevent material delivery.
When should the displacement rod and cylinder be replaced?+
Titan directs technicians to inspect their hard-chrome surfaces for grooves, dents, and worn areas and replace them when the chrome is damaged.
Which lubricant does Titan specify for the upper packing?+
Titan recommends Piston Lube part 314-480 and states not to substitute oil, water, or solvent.
What safety procedure is required before fluid-pump service?+
Lock the gun trigger, shut off and vent the air supply, open the pressure-relief path, trigger the grounded gun into a metal container, and verify zero pressure before disassembly.
Find the Correct Replacement Part

Restore Reliable Priming, Stroke Balance and High-Pressure Sealing

Browse verified 155-559 pump blocks, packings, rod, cylinder, piston-valve parts, inlet-valve parts, O-rings, and foot-valve components.

Search using:
  • Titan part number
  • 155-559 diagram callout
  • Upper or lower packing position
  • Piston or foot-valve component
  • Priming, leakage, stroke, or pressure symptom

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