Dashboard Air Ducts

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Windshield Defrost Louver Charcoal S45-1040-400 - Kenworth
positive OEM
Part# S45-1040-400
Part# S45-1040-400
shipping
$26.38
In Stock
Mode - Cylinder Vane S31-6016 - Peterbilt
positive OEM
Part# S31-6016
Part# S31-6016
shipping
Special Price $239.89 Regular Price $256.43
In Stock
Louver - Cab LH S45-1008 - Kenworth
positive OEM
Part# S45-1008
Part# S45-1008
shipping
Special Price $57.43 Regular Price $68.84
In Stock
Left side
Defrost Louver, LH S45-1010-3 - Kenworth
positive OEM
Part# S45-1010-3
Part# S45-1010-3
shipping
Special Price $4.72 Regular Price $9.29
In Stock
Right side
Defrost Louver, RH S45-1003-3 - Kenworth
positive OEM
Part# S45-1003-3
Part# S45-1003-3
shipping
Special Price $7.20 Regular Price $11.40
In Stock
Control Assy - Heater - HVAC SR2000069 - Bergstrom
Part# SR2000069
Part# SR2000069
shipping
$17.91
In Stock
Louver - Defrost Cab BLK LH S45-1010-1 - Kenworth
positive OEM
Part# S45-1010-1
Part# S45-1010-1
shipping Ships up to 72h
Special Price $6.35 Regular Price $10.00
Available
Louver - Defrost Black RH S45-1003-1 - Kenworth
positive OEM
Part# S45-1003-1
Part# S45-1003-1
shipping Ships up to 72h
Special Price $5.56 Regular Price $8.18
Available
Louver - Grille, Duct F45-1002 - Paccar
positive OEM
Part# F45-1002
Part# F45-1002
shipping Ships up to 72h
$66.67
Available
Heavy Duty Black Defrost Fan HD10150 - Paccar
Part# HD10150
Part# HD10150
shipping Ships up to 72h
$120.00
Available
RH Air Duct, Passenger 18-05015 - Peterbilt
positive OEM
Part# 18-05015
Part# 18-05015
shipping Ships up to 3-6w
$2,235.39
Special Order
LH Air Duct, Passenger 18-05014 - Peterbilt
positive OEM
Part# 18-05014
Part# 18-05014
shipping Ships up to 3-6w
$2,344.81
Special Order
LH Air Duct, Driver 18-05012 - Peterbilt
positive OEM
Part# 18-05012
Part# 18-05012
shipping Ships up to 3-6w
$2,396.09
Special Order
RH Defrost Duct, Side Window 18-05032 - Peterbilt
positive OEM
Part# 18-05032
Part# 18-05032
shipping Ships up to 3-6w
$125.37
Special Order
Defrost Duct, Windshield 18-05027 - Peterbilt
positive OEM
Part# 18-05027
Part# 18-05027
shipping Ships up to 3-6w
$180.71
Special Order
Bezel - Louver - Air Outlet - HVAC F45-1001 - Paccar
Part# F45-1001
Part# F45-1001
shipping Ships up to 3-6w
$13.64
Special Order
Defrost Louver, LH, Gray S45-6026-281 - Peterbilt
positive OEM
Part# S45-6026-281
Part# S45-6026-281
shipping Ships up to 3-6w
$52.69
Special Order

17 Items

Reliable Dashboard Air Ducts & Components for Optimal Cabin Ventilation

A truck’s climate control system depends on properly functioning dashboard air ducts, defrost louvers, and heater control assemblies to distribute airflow efficiently throughout the cab. These components work together to direct warm or cool air from the HVAC system, ensuring consistent ventilation and temperature regulation. Over time, wear and tear can reduce their effectiveness, making replacements necessary for maintaining a comfortable driving environment.

Efficient Airflow Distribution

The primary function of these components is to ensure that air from the heating, ventilation, and air conditioning (HVAC) system reaches the cab evenly. Key components include:

  • Dashboard air ducts to distribute airflow
  • Defrost louvers to direct warm air onto the windshield and prevent fogging or ice buildup
  • Heater control assemblies for precise temperature adjustments

When these parts become worn or clogged, air circulation suffers, leading to inconsistent heating, cooling, or defrosting performance. High-quality replacements restore proper airflow, keeping the cab comfortable in all seasons.

Durability and Compatibility

Truck interiors are exposed to dust, temperature fluctuations, and constant use, which can degrade air duct materials over time. Premium dashboard air ducts and defrost louvers are designed to withstand heat, impact, and wear, ensuring long-term durability. Many options match OEM specifications, offering:

  • A secure, leak-free fit
  • Efficient airflow maintenance
  • Reduced strain on the HVAC system

Straightforward Installation and Maintenance

Replacing dashboard air ducts, defrost louvers, or heater control assemblies is a practical and effective solution for restoring airflow without the need for major HVAC repairs. Benefits include:

  • Direct-fit installation for hassle-free upgrades
  • Routine maintenance to remove dust and debris buildup
  • Improved climate control and ventilation performance

At Big Rig World, you’ll find a selection of dashboard air ducts, defrost louvers, and heater control assemblies built for durability and compatibility with various truck models. Whether replacing worn-out parts or upgrading for better airflow efficiency, these components help keep truck cabs well-ventilated and comfortable on the road.