BENDIX BW2979 Dépliant

Cleaner Air = Lower Costs

™

Air is essential…not just to operate brakes, but for many new components such as 
automated manual transmissions and diesel particulate filters. So why trust your vehicle 
to anyone other than the experts? Bendix is the number one choice of air dryers on 
Freightliner

®

 heavy- and medium-duty air braked trucks. A trail-blazer in the commercial 

vehicle air drying technology field, we’ve produced over 10 million air dryers for  
heavy-duty vehicles. And now we’re proud to bring you our newest air dryer, the  
Bendix

®

 AD-9si

™

.

The new Bendix

®

 AD-9si

™

 air dryer is a no up-charge option with up to 25% more air 

drying capacity versus the existing Bendix

®

 AD-IP

®

 model. More air drying capacity 

means more clean air when your vehicle needs it. 

When equipped with a PuraGuard

®

 oil coalescing filter the Bendix

®

 AD-9si

™

 provides 

superior air system oil removal – up to 200 times more than competitive oil coalescing 
cartridges – and delivers proven performance and easy maintenance. In addition, the 
AD-9si weighs 3 lbs. less than the competitive air dryer it replaces.

 

Freightliner also offers two well-known Bendix air dryers:

 

– 

Leading the industry for over 20 years, the AD-9 has a robust 

outer shell protecting the desiccant cartridge. And for easier service, depending 
on your vehicle configuration, you may use a bracket to attach an external D-2

®

 

governor to the AD-9 air dryer.

 – For a nominal upgrade charge, your fleet 

can select the Bendix

®

 

DRM (Dryer Reservoir Module), 

a Bendix AD-IS

®

 

air dryer mounted directly to a multi-

compartment air reservoir mounted in a back-of-cab 
position. It eliminates the need for a separate wet tank while 
generating at least 10 pounds in weight savings. 

Both can be ordered with a Bendix PuraGuard oil coalescing 
cartridge. See the Bendix AD-9si FAQ’s sheet (BW2955) for 
additional details, including order codes

. 

Fleet owners trust the Bendix AD-9si to provide the latest in advanced air drying 
technologies. Fleets and owner/operators can trust in our commitment to provide 
multiple options and a supply of parts and remanufactured air dryers to meet the 
unique requirements of their Freightliner.

With protection for three years or 350,000 miles, the Bendix AD-9si air dryer is – if 
installed as original equipment on the vehicle – eligible for our Total Air Guarantee (T.A.G.) 
program. T.A.G. extends the warranty of other Bendix air and antilock brake system 
components also installed as original equipment for three years or 350,000 miles.

   

For better air dryer performance, non-oil coalescing  
cartridges can be upgraded to the Bendix

®

 PuraGuard

®

  

oil coalescing cartridge. However, if the Bendix

®

  

PuraGuard

®

 oil coalescing cartridge is an OE Standard,  

it 

must be replaced with a like unit.

clean dr

y air

Skin Cooling – Lowers the temperature, 
converting aerosols to liquid

PuraGuard

®

 Treatment 

–

 Coalesces and collects  

oil particles, protecting the desiccant from contamination

Recyclable desiccant removes moisture by adsorption

Bendix PuraGuard

®

 technology offers better oil coalescence over competitive oil coalescing cartridges 

with up to 200 times more oil removal. Less oil in the air system means less risk of failure for 
expensive vehicle systems, such as emissions control systems and automated manual transmissions 
that rely on air.

 When you combine the field-proven performance of any Bendix

®

 air dryers with 

Bendix

®

 PuraGuard

®

 oil coalescing technology, you’ll ensure the reliability, durability and the proper 

performance of your vehicle systems. 

 

Discover the Newest        

Competitive oil coalescing technology places  
the oil separator AFTER the desiccant. Getting  
the oil out first (as PuraGuard

®

 does) means  

more oil is removed before it can contaminate  
the desiccant, delivering superior performance  
and a longer cartridge life. 

 

 

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