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3417958 | Genuine Bendix® Air Compressor TF-550 For ISM N14 M11
Bendix®

3417958 | Genuine Bendix® Air Compressor TF-550 For ISM N14 M11

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  • Product SKU: 3417958
  • Availability: In Stock
$1,095.00 - $1,095.00
$1,095.00
$1,095.00 - $1,095.00
$1,095.00
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Product details

DescriptionAir Compressor TF-550 For ISM N14 M11
ConditionNew
BrandBendix®
Part Number3417958, 3417958NX

Specificarions

Engine Application Cummins
Model TU-FLO 550
Mount Style Flange Mount
Port Location Inlet-outlet Left/Left & Top
Cooling Water
System TU-FLO 550
Flange Type C
Engine  Drive
Weight 55

Fitment Guide: Engines: K19, ISM, M11, N14, Cummins C Series Engine

An Air Compressor TF-550 is typically used on heavy-duty trucks, buses, and some industrial diesel engines. Its job is to generate compressed air for the vehicle's air brake system and other pneumatic accessories.

 

1. Air Brake Operation

  • Provides the compressed air required to apply and release the brakes.
  • Maintains safe operating pressure in the brake system.
  • Essential for vehicle safety and legal operation.

2. Air Suspension Systems

  • Supplies air to air-ride suspension components.
  • Helps maintain ride height and improves ride comfort.
  • Supports load leveling on commercial vehicles.

3. Pneumatic Accessories

The compressor can provide air for:

  • Air horns
  • Air-operated doors
  • Pneumatic seats
  • Clutch and transmission controls on some vehicles
  • Other air-powered equipment

4. Maintaining System Pressure

  • Continuously replenishes air lost during normal operation.
  • Works with an air governor and air dryer.
  • Automatically loads and unloads as system pressure changes.

Benefits of Using a TF-550

  • Reliable air supply for critical systems.
  • Durable design suitable for heavy-duty service.
  • Helps reduce vehicle downtime.
  • Supports safe braking performance.
  • Commonly available replacement parts and service support.

Signs of Faulty

 

1. Slow Air Pressure Build-Up

What you'll notice

  • Air gauges take much longer than normal to reach operating pressure.
  • The low-air warning stays on for an extended time after startup.

Possible cause

  • Worn piston rings
  • Leaking valves
  • Internal compressor wear

2. Low Air Pressure

What you'll notice

  • Air pressure never reaches the normal operating range.
  • Frequent low-air pressure alarms.

Possible cause

  • Compressor cannot produce enough airflow.
  • Internal leakage or damaged components.

3. Excessive Oil in the Air System

What you'll notice

  • Oil found in air tanks.
  • Oil contamination in the air dryer.
  • Oily discharge when draining air tanks.

Possible cause

  • Worn piston rings or seals allowing engine oil to pass into the compressed-air system.

4. Compressor Runs Continuously

What you'll notice

  • Compressor rarely unloads.
  • Engine may seem to work harder than usual.

Possible cause

  • Compressor is struggling to maintain pressure.
  • Internal wear reducing efficiency.

5. Unusual Noises

What you'll notice

  • Knocking
  • Grinding
  • Squealing
  • Rattling sounds from the compressor area

Possible cause

  • Worn bearings
  • Damaged pistons
  • Internal mechanical failure

6. Air Dryer Purges Excessively

What you'll notice

  • Frequent air dryer cycling.
  • Irregular pressure fluctuations.

Possible cause

  • Compressor output problems or air system issues.

7. Overheating

What you'll notice

  • Compressor becomes excessively hot.
  • Burnt smell near the compressor.

Possible cause

  • Restricted cooling passages
  • Poor lubrication
  • Excessive duty cycle

8. Air Leaks from Compressor Area

What you'll notice

  • Hissing sounds around the compressor.
  • Visible leaks at fittings or gaskets.

Possible cause

  • Failed gaskets
  • Loose fittings
  • Cracked components

9. Excessive Moisture in Air Tanks

What you'll notice

  • More water than usual when draining tanks.
  • Reduced air dryer effectiveness.

Possible cause

  • Compressor overheating or reduced efficiency.
About the manufacturer

A part of the Knorr-Bremse Group, Bendix® provides the automotive and truck parts industry with cutting-edge energy management solutions, active safety technologies, and air brake charging for tractors, buses, commercial vehicles, trailers, as well as medium- and heavy-duty trucks throughout North America. Headquartered in Elyria, Ohio, Bendix Commercial Vehicle Systems employs over 3,200 people who work hand in hand for the accomplishment of the brand's vision: "to become the leading worldwide supplier of active vehicle safety systems within the commercial vehicle industry." This brand takes pride in being the first to introduce many notable parts and technologies to the North American commercial vehicle market. Among these many firsts are the groundbreaking air brake system technologies such as air dryers, air compressors, and ABS. At Bendix, exceeding industry standards is a strict requirement.

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