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AllTitanParts

(713) 931-0006

PowrLiner 4900XLT Hydraulic System Assembly (P/N 779-027)

PowrLiner 4900XLT Hydraulic System Assembly (P/N 779-027)
Titan 941-555 Ball Valve
Titan 941-555 Ball Valve

Item No: -

Part #: 941-555

Part 941-555 is a replacement ball valve for a wide range of compatible spray equipment. This va...

Retail Price: $157.90
You save: $19.74 (12.50%)
Our Price: $138.16
QTY:
Titan 313-755 Pressure Control Knob Deca or Decal
Titan 313-755 Pressure Control Knob Deca or Decal

Item No: 1

Part #: 313-755

Part 313-755 is a replacement pressure control knob decal for a wide range of compatible spray e...

$4.50
QTY:
Titan 862-414 Set Screw
Titan 862-414 Set Screw

Item No: 2

Part #: 862-414

  PowrLiner / PowrTex / PowrTwin part 862-414 is a set screw designed to secure componen...

$2.00
QTY:
Titan 448-243 Pressure Control Knob
Titan 448-243 Pressure Control Knob

Item No: 3

Part #: 448-243

Part 448-243 is a replacement pressure control knob used on compatible PowrTwin, PowrTex, PowrLi...

Retail Price: $96.40
You save: $8 (8.30%)
Our Price: $88.40
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Titan 449-286 Low Compensator
Titan 449-286 Low Compensator

Item No: 4

Part #: 449-286

  Titan part 449-286 is a low compensator used to regulate hydraulic pressure in the spr...

Retail Price: $999.20
You save: $159.87 (16.00%)
Our Price: $839.33
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Titan 860-520 Set Screw
Titan 860-520 Set Screw

Item No: 5

Part #: 860-520

  Genuine replacement part 860-520 is a set screw used to secure components such as pull...

$2.00
QTY:
Titan 448-250 Pulley/Fan Assembly
Titan 448-250 Pulley/Fan Assembly

Item No: 6

Part #: 448-250

Titan 448-250 Pulley/Fan Assembly or Fan/Pulley *Replaced Part # 448-228* This assembly ensures eff...

Retail Price: $288.60
You save: $40.12 (13.90%)
Our Price: $248.48
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Titan 449-751 Hydraulic Pump
Titan 449-751 Hydraulic Pump

Item No: 8

Part #: 449-751

Titan 449-751 Hydraulic pump or Pump hydraulic Low Pressure is a genuine OEM replacement component d...

Retail Price: $1657.50
You save: $265.2 (16.00%)
Our Price: $1392.30
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Titan 431-042 Tube connector
Titan 431-042 Tube connector

Item No: 9

Part #: 431-042

Titan 431-042 Tube connector

Retail Price: $37.50
You save: $2.06 (5.49%)
Our Price: $35.44
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Titan 858-636 Bracket Screw
Titan 858-636 Bracket Screw

Item No: 10

Part #: 858-636

  Part 858-636 is a genuine Bracket Screw used to secure critical components—such as m...

$2.10
QTY:
Titan 325-031 O-Ring
Titan 325-031 O-Ring

Item No: 12

Part #: 325-031

Part number 325-031 is a precision O-Ring used to create leak-proof seals in fluid and air systems a...

$3.50
QTY:
Titan 860-002 Lock washer
Titan 860-002 Lock washer

Item No: 14

Part #: 860-002

Titan 860-002 Lock Washer – Genuine OEM Quality by Titan The Titan 860-002 Lock Washer is a genui...

$2.50
QTY:
Titan 0537919 Chain, cut to length, 19
Titan 0537919 Chain, cut to length, 19"(replaces Titan 424-283)

Item No: 15

Part #: 0537919

Titan 0537919 Chain, cut to length, 19" - Durable and Versatile replaces Titan 424-283 Titan 053791...

Retail Price: $74.80
You save: $6.21 (8.30%)
Our Price: $68.59
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Titan 424-236 Black Return Hose Assembly, 31
Titan 424-236 Black Return Hose Assembly, 31"

Item No: 16

Part #: 424-236

  Part number 424-236 is a Black Return Hose Assembly, 31" used in PowrLiner 4900 and 49...

Retail Price: $135.50
You save: $14.09 (10.40%)
Our Price: $121.41
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Titan 451-029 Fitting,1/2nptx3/4-16 Straight
Titan 451-029 Fitting,1/2nptx3/4-16 Straight

Item No: 17

Part #: 451-029

  Part number 451-029 is a straight fitting with 1/2" NPT threads on one end and 3/4-16 ...

$10.30
QTY:
Titan 858-621 Socket Screw
Titan 858-621 Socket Screw

Item No: 20

Part #: 858-621

  Part 858-621 is a socket screw used to secure critical components in pump and drive as...

$2.40
QTY:
Titan 859-001 Seal Washer
Titan 859-001 Seal Washer

Item No: 21

Part #: 859-001

Part 859-001 is a replacement seal washer used in fluid and hydraulic systems across a wide rang...

$2.10
QTY:
Titan 858-624 Screw
Titan 858-624 Screw

Item No: 22

Part #: 858-624

Titan 858-624 Screw is a hex head screw with dimensions of 1/4"-20 x 5/8". This OEM screw for use ...

$2.40
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Titan 449-605 Tank Gasket
Titan 449-605 Tank Gasket

Item No: 23

Part #: 449-605

  Titan part 449-605 is a tank gasket used to create a leak‑proof seal between the pai...

$19.30
QTY:
Titan 472-500 Elbow, Street
Titan 472-500 Elbow, Street

Item No: 25

Part #: 472-500

  Part 472-500 is a street elbow used to change fluid direction in tight spaces on PowrL...

$24.60
QTY:
Titan 448-208 Inlet Screen 1/2
Titan 448-208 Inlet Screen 1/2" 100 Mesh

Item No: 26

Part #: 448-208

    Part number 448-208 is a 1/2" 100 Mesh Inlet Screen designed for compatible PowrLine...

Retail Price: $79.30
You save: $6.58 (8.30%)
Our Price: $72.72
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Titan 862-410 Locknut
Titan 862-410 Locknut

Item No: 28

Part #: 862-410

  Genuine replacement part 862-410 is a locknut designed to securely fasten components w...

$3.10
QTY:
Titan 0509292 Lock washer
Titan 0509292 Lock washer

Item No: 30

Part #: 509292

Part 0509292 is a replacement lock washer used in various assembly points across a wide range of...

$3.80
QTY:
Titan 449-212 Plug, Tank with O-Ring
Titan 449-212 Plug, Tank with O-Ring

Item No: 31

Part #: 449-212

  This Titan 449-212 plug with O-ring is a direct replacement component designed for use...

$14.60
QTY:
Titan 192-228 Elbow
Titan 192-228 Elbow

Item No: 34

Part #: 192-228

  PowrBeast / PowrLiner / PowrTex / PowrTwin part 192-228 is an elbow fitting designed t...

Retail Price: $55.00
You save: $4.56 (8.29%)
Our Price: $50.44
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Titan 449-126 Hose Clamp
Titan 449-126 Hose Clamp

Item No: 35

Part #: 449-126

Titan 449-126 Hose clamp   This Titan 449-126 hose clamp is a direct replacement comp...

$11.10
QTY:
Titan 424-284 Pressure Hose Assembly
Titan 424-284 Pressure Hose Assembly

Item No: 37

Part #: 424-284

  Part number 424-284 is a Pressure Hose Assembly used in PowrLiner 4000, 4900XLT, 4900,...

Retail Price: $180.70
You save: $22.59 (12.50%)
Our Price: $158.11
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Titan 192-051 Elbow
Titan 192-051 Elbow

Item No: 38

Part #: 192-051

  PowrBeast / PowrDrive / PowrLiner / PowrTex / PowrTwin / Hydra X part 192-051 is an el...

$23.70
QTY:
Titan 101-205A Ground lug or Lug
Titan 101-205A Ground lug or Lug

Item No: 39

Part #: 101-205A

Titan 101-205A Ground lug or Lug, ground, modified

Retail Price: $40.20
You save: $0.8 (1.99%)
Our Price: $39.40
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Titan 451-220 Hydraulic Filter
Titan 451-220 Hydraulic Filter

Item No: 40

Part #: 451-220

  Part number 451-220 is a genuine hydraulic filter designed for use in PowrBeast, PowrL...

Retail Price: $83.00
You save: $6.89 (8.30%)
Our Price: $76.11
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Titan 449-609A Hydraulic By-Pass
Titan 449-609A Hydraulic By-Pass

Item No: 41

Part #: 449-609A

  Titan part 449-609A is a hydraulic by‑pass valve kit used to regulate hydraulic flow...

Retail Price: $37.70
You save: $2.07 (5.49%)
Our Price: $35.63
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Titan 449-626 Hydraulic Fluid Dipstick
Titan 449-626 Hydraulic Fluid Dipstick

Item No: 42

Part #: 449-626

  Titan part 449-626 is a Hydraulic Fluid Dipstick used to check the hydraulic fluid lev...

Retail Price: $71.60
You save: $5.94 (8.30%)
Our Price: $65.66
QTY:
Titan 449-614 Tube Assembly
Titan 449-614 Tube Assembly

Item No: 43

Part #: 449-614

  Titan part 449-614 is a Tube Assembly used to convey hydraulic fluid or paint between ...

Retail Price: $93.70
You save: $7.78 (8.30%)
Our Price: $85.92
QTY:
Titan 9811122 Nut
Titan 9811122 Nut

Item No: 44

Part #: 9811122

  Part 9811122 Nut is a genuine replacement fastener used across multiple Elite, Helix, ...

$2.13
QTY:
Titan 862-438 Thumb Screw
Titan 862-438 Thumb Screw

Item No: 45

Part #: 862-438

  Part number 862-438 is a thumb screw designed for tool‑free hand tightening and loos...

$8.60
QTY:
Titan 862-402 Acorn Nut
Titan 862-402 Acorn Nut

Item No: 46

Part #: 862-402

  Part number 862-402 is an acorn nut (also known as a cap nut) designed to provide a fi...

$8.70
QTY:
Titan 449-107 Mounting Plate Retainer
Titan 449-107 Mounting Plate Retainer

Item No: 47

Part #: 449-107

  Part number 449-107 is a Mounting Plate Retainer used in various PowrLiner, PowrTwin, ...

Retail Price: $38.40
You save: $2.11 (5.49%)
Our Price: $36.29
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Titan 449-135 Spacer
Titan 449-135 Spacer

Item No: 48

Part #: 449-135

  This Titan 449-135 spacer is a direct replacement component designed for use on compat...

Retail Price: $48.20
You save: $3.66 (7.59%)
Our Price: $44.54
QTY:
Titan 862-403 Bolt,Tap
Titan 862-403 Bolt,Tap

Item No: 49

Part #: 862-403

  Part number 862-403 is a bolt, tap designed to securely fasten components and create o...

$2.90
QTY:
Titan 862-493 Hexagonal Bolt
Titan 862-493 Hexagonal Bolt

Item No: 50

Part #: 862-493

Part number 862-493 is a Hexagonal Bolt used in critical mounting applications across an extensive r...

$7.20
QTY:
Titan 451-121 Elbow
Titan 451-121 Elbow

Part #: 451-121

Titan 451-121 Elbowfits: Titan 8950 (2-Gun) SPEEFLO PowrLiner,Titan 12000XLT DI (459-350) PowrTwin G...

$24.10
QTY:

Titan PowrLiner 4900XLT Hydraulic System Assembly – P/N 779-027

The Hydraulic System Assembly (P/N 779-027) for the Titan PowrLiner 4900XLT gas model manages hydraulic pressure and transfers power from the engine to the pump system. This assembly is essential for maintaining smooth pump cycling, stable spray pressure, and consistent striping performance in professional pavement marking applications.

Fits Titan PowrLiner 4900XLT (Gas Model)
Part Number 779-027
System Hydraulic Drive Assembly
Used On Pavement striping, parking lots, airports, athletic fields
Hydraulic Assembly Components May Include:
  • Hydraulic Pump
  • Hydraulic Motor
  • Reservoir Tank
  • Hydraulic Hoses
  • Pressure Relief Components
  • Mounting Brackets
  • Drive Coupling
  • Filter Components
  • Fittings & Adapters
  • Seals & O-Rings

Product Overview

The Titan PowrLiner 4900XLT Hydraulic System Assembly (P/N 779-027) converts engine power into hydraulic energy to drive the pump system. This configuration allows for consistent pressure output and controlled pump operation under demanding striping conditions.

Proper hydraulic system function is critical for maintaining smooth spray performance, reducing mechanical stress, and preventing downtime during large-scale marking projects.

Why the Hydraulic System Is Important

  • Maintains consistent spray pressure
  • Supports smooth pump cycling
  • Reduces vibration and mechanical wear
  • Protects against pressure spikes
  • Extends equipment lifespan

Signs Hydraulic Components Need Service

  • Loss of spray pressure
  • Hydraulic fluid leaks
  • Overheating during operation
  • Unusual noise from pump or motor
  • Erratic pump cycling

Compatibility

Machine Model Power Configuration
Titan PowrLiner 4900XLT Gas Engine / Hydraulic Drive

Frequently Asked Questions

It transfers engine power into hydraulic pressure to drive the pump system.

Yes. Part number 779-027 corresponds to the hydraulic system assembly for the Titan PowrLiner 4900XLT gas configuration.

Yes. Leaks can reduce pressure and lead to inconsistent spray output.

Yes. Regular inspection and replacement help maintain clean hydraulic fluid and stable operation.

No. The fluid section is listed separately from the hydraulic drive assembly.

Related Products

PowrLiner 4900XLT Fluid Section Parts

Pump pistons, packings, and valve assemblies.

PowrLiner 4900XLT Main Assembly

Structural frame and engine mounting components.

PowrLiner 4900XLT Accessories

Spray guns, hoses, and performance add-ons.

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