DEF Hoses,Tubing & Piping

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Epa/Hose Assy-Htd Def Ret/Sup (4 X 38 M50-6039-4413850 - Paccar
positive OEM
Part# M50-6039-4413850
Part# M50-6039-4413850
In Stock
shipping-move
$547.76
Fitting - Elbow, Diesel Exhaust Fluid Line, 90 Degree, Hose Barb 03-38068-000 - Freightliner
positive OEM
Part# 03-38068-000
Part# 03-38068-000
In Stock
shipping-move
Special Price $12.57 Regular Price $17.24
Hose Assembly - HTD DEF PRES (6 x 2400MM) M50-6031-71132400 - Paccar
positive OEM
Part# M50-6031-71132400
Part# M50-6031-71132400
In Stock
shipping-move
Special Price $381.94 Regular Price $398.37
DEF Epa/Hose Assy M50-6039-4412900 - Paccar
Part# M50-6039-4412900
Part# M50-6039-4412900
In Stock
shipping-move
$449.89
DEF Epa/Hose Assy M50-6039-3232900 - Paccar
positive OEM
Part# M50-6039-3232900
Part# M50-6039-3232900
In Stock
shipping-move
Special Price $411.91 Regular Price $449.89
Diesel Exhaust Fluid Line Clip 0.25in 5841034800 - VOSS Automotive
positive OEM
Part# 5841034800
Part# 5841034800
In Stock
shipping-move
Special Price $1.23 Regular Price $2.80
Quick Connect Silicone Hose Assembly w/ Tubing (3/8 In. x 500mm), Green M50-6012-861210500 - Dynacraft
positive OEM
Part# M50-6012-861210500
Part# M50-6012-861210500
In Stock
shipping-move
$82.51
DEF Hose Assembly with Convoluted Tubing (6mm x 2200mm) M50-6031-71132200 - Paccar
positive OEM
Part# M50-6031-71132200
Part# M50-6031-71132200
In Stock
shipping-move
Special Price $331.40 Regular Price $377.77
DEF Hose Assembly w/ Convoluted Tubing (6mm x 450mm) M50-6032-74320450 - Paccar
positive OEM
Part# M50-6032-74320450
Part# M50-6032-74320450
In Stock
shipping-move
Special Price $189.62 Regular Price $197.47
Hose Assembly - HTD DEF PRES 4 x 950mm M50-6038-5520950 - Paccar
positive OEM
Part# M50-6038-5520950
Part# M50-6038-5520950
In Stock
shipping-move
Special Price $240.02 Regular Price $248.99
Diesel Exhaust Fluid Line 04-31883-000 - Freightliner
Part# 04-31883-000
Part# 04-31883-000
shipping-move Ships in 1-3 days
$244.43
Diesel Exhaust Fluid Line - Suction 04-32084-000 - Freightliner
positive OEM
Part# 04-32084-000
Part# 04-32084-000
shipping-move Ships in 1-3 days
$112.74
Diesel Exhaust Fluid Line - Return 04-32033-320 - Freightliner
positive OEM
Part# 04-32033-320
Part# 04-32033-320
shipping-move Ships in 1-3 days
$171.41
Diesel Exhaust Fluid Line - Pressure 2600 Mm 04-32032-260 - Freightliner
positive OEM
Part# 04-32032-260
Part# 04-32032-260
shipping-move Ships in 1-3 days
$146.01
Support-Def Hose M85-6450 - Paccar
positive OEM
Part# M85-6450
Part# M85-6450
shipping-move Ships in 1-3 days
$18.83
Hose-Def Coolant,Formed F50-6604 - Paccar
positive OEM
Part# F50-6604
Part# F50-6604
shipping-move Ships in 1-3 days
$249.30
Epa/Hose Assy-Htd Def Ret/Sup (4 X 45 M50-6039-4414550 - Paccar
positive OEM
Part# M50-6039-4414550
Part# M50-6039-4414550
shipping-move Ships in 1-3 days
$619.89
Epa/Hose Assy-Htd Def Ret/Sup (4 X 53 M50-6039-4415300 - Paccar
positive OEM
Part# M50-6039-4415300
Part# M50-6039-4415300
shipping-move Ships in 1-3 days
$697.16
Epa/Tube, Pressure Sensing 2429041PE - Paccar Engine
positive OEM
Part# 2429041PE
Part# 2429041PE
shipping-move Ships in 1-3 days
$60.70
Voss Sv270 - 1/2 Nptf 7000660100 - Paccar
positive OEM
Part# 7000660100
Part# 7000660100
shipping-move Ships in 1-3 days
$41.30
Hose-Vent 90Deg 650Mm F50-1456-0650 - Paccar
positive OEM
Part# F50-1456-0650
Part# F50-1456-0650
shipping-move Ships in 1-3 days
$127.31
Epa/Hose Assy-Htd Def Pres (6 X 1000M M50-6031-71131000 - Paccar
positive OEM
Part# M50-6031-71131000
Part# M50-6031-71131000
shipping-move Ships in 1-3 days
$254.13
Epa/Hose Assy-Htd Def Pres (6 X 900Mm M50-6031-72130900 - Paccar
positive OEM
Part# M50-6031-72130900
Part# M50-6031-72130900
shipping-move Ships in 1-3 days
$243.83
Epa/Hose Assy-Htd Def Pres (6 X 1200M M50-6031-71131200 - Paccar
positive OEM
Part# M50-6031-71131200
Part# M50-6031-71131200
shipping-move Ships in 1-3 days
$274.74
Epa/Hose Assy-Htd Def Pres (6 X 1300M M50-6031-72131300 - Paccar
positive OEM
Part# M50-6031-72131300
Part# M50-6031-72131300
shipping-move Ships in 1-3 days
$285.04
Epa/Hose Assy-Htd Def Pres (6 X 1600M M50-6031-72131600 - Paccar
positive OEM
Part# M50-6031-72131600
Part# M50-6031-72131600
shipping-move Ships in 1-3 days
$315.96
Epa/Hose Assy-Htd Def Pres (6 X 1700M M50-6031-72131700 - Paccar
positive OEM
Part# M50-6031-72131700
Part# M50-6031-72131700
shipping-move Ships in 1-3 days
$326.26
Epa/Hose Assy-Htd Def Pres (6 X 2700M M50-6031-72132700 - Paccar
positive OEM
Part# M50-6031-72132700
Part# M50-6031-72132700
shipping-move Ships in 1-3 days
$429.29
Epa/Hose Assy-Htd Def Ret/Sup (6 X 35 M50-6032-74420350 - Paccar
positive OEM
Part# M50-6032-74420350
Part# M50-6032-74420350
shipping-move Ships in 1-3 days
$187.17
Epa/Hose Assy-Htd Def Ret/Sup (4 X 16 M50-6039-3231600 - Paccar
positive OEM
Part# M50-6039-3231600
Part# M50-6039-3231600
shipping-move Ships in 1-3 days
$315.96
Epa/Hose Assy-Htd Def Ret/Sup (4 X 17 M50-6039-3231700 - Paccar
positive OEM
Part# M50-6039-3231700
Part# M50-6039-3231700
shipping-move Ships in 1-3 days
$326.26
Epa/Hose Assy-Htd Def Ret/Sup (4 X 24 M50-6039-3232450 - Paccar
positive OEM
Part# M50-6039-3232450
Part# M50-6039-3232450
shipping-move Ships in 1-3 days
$403.53
Epa/Hose Assy-Htd Def Ret/Sup (4 X 28 M50-6039-3232800 - Paccar
positive OEM
Part# M50-6039-3232800
Part# M50-6039-3232800
shipping-move Ships in 1-3 days
$439.59
Epa/Hose Assy-Htd Def Ret/Sup (4 X 41 M50-6039-3234100 - Paccar
positive OEM
Part# M50-6039-3234100
Part# M50-6039-3234100
shipping-move Ships in 1-3 days
$573.51
Epa/Hose Assy-Htd Def Ret/Sup (4 X 42 M50-6039-3234200 - Paccar
positive OEM
Part# M50-6039-3234200
Part# M50-6039-3234200
shipping-move Ships in 1-3 days
$583.83
Epa/Hose Assy-Htd Def Ret/Sup (4 X 43 M50-6039-3234300 - Paccar
positive OEM
Part# M50-6039-3234300
Part# M50-6039-3234300
shipping-move Ships in 1-3 days
$594.13

DEF Hose and Tubing Essentials That Keep Systems Flowing

Effective diesel exhaust fluid systems rely on secure and well-maintained connections between their core components. Hose, tubing, and piping elements within these systems serve a crucial role in transporting DEF fluid from storage to injection points, helping trucks meet emissions standards and operate cleanly. When these lines are worn, blocked, or damaged, performance issues and regulatory non-compliance can follow.

Withstanding Tough Trucking Environments with Resilient Lines

DEF lines operate in settings where movement, temperature shifts, and corrosive exposure are everyday challenges. That’s why the materials used must combine flexibility with resilience, allowing consistent fluid delivery without failure. Insulated construction and anti-crystallization properties help preserve functionality across all driving conditions.

Simplifying Repairs Through Well-Matched System Components

Because DEF systems vary between truck models, hoses and tubing must fit seamlessly within the vehicle’s layout. Quality piping solutions are designed to integrate smoothly with tanks, pumps, and injector assemblies while minimizing the need for custom modifications. Easy-to-route lines and compatible fittings reduce downtime during installation or replacement, supporting routine service and emergency repairs alike.

Helping Engines Run Clean While Meeting Regulations

A stable DEF system ensures proper emissions control and steady engine operation. When hoses and tubing maintain clean, consistent flow, the risk of system faults—like clogged injectors or sensor misreads—drops significantly. That reliability supports clean exhaust output and efficient fuel use mile after mile.

Big Rig World offers a selection of DEF hose, tubing, and piping solutions designed to support emissions systems in modern diesel trucks. Built for reliability and long-term use, these components help ensure smooth operation and keep your vehicle in line with emissions standards mile after mile.