Heavy-Duty Engine Intake Air Filter Elements – Models 56040822 & 55187529

Two primary air filter elements engineered for engine intake systems on construction equipment, agricultural machinery, and industrial power units. 56040822 is specified as an outer primary air filter for agricultural tractors, telehandlers, and wheeled loaders, while 55187529 serves as a primary air filter on mid-to-large construction and agricultural platforms. Both use high-efficiency cellulose or synthetic-blend media with a pleated, resin-impregnated pack to achieve 99.9 % dust arrestance per ISO 5011, protecting turbochargers, cylinders, and valve trains from abrasive wear.

Key Features

• 56040822: Outer primary element, cylindrical pleated media, radial seal or open-ended trim per housing, 99.9 % efficiency @ 5 µm (ISO 5011)

  
  

• 55187529: Primary air filter, deep-pleat cellulose/synthetic blend, polyurethane end caps, steel mesh reinforced

  
  

• Flame-retardant media treatment on both

  
  

• High dust-holding capacity for extended service intervals in dusty environments

  
  

• Compatible with common safety-element (inner) pairing — always replace the safety element when servicing the primary

  
  

Technical Specifications

* 56040822 dimensional envelope varies by host machine — confirm OD, ID, length, and seal type (radial vs. facial) against your existing element.

Application Guidance

56040822 – Primary intake filtration on agricultural tractors, telehandlers, compact wheel loaders, and municipal equipment where the outer element bears the brunt of dust loading. Paired with a safety inner element to guarantee zero ingress during primary change.

55187529 – Primary air filter on construction equipment and agricultural machinery. Typical dimensional envelope for this class is ~163 mm OD × ~95 mm ID × ~355 mm length, though the exact 55187529 dimensions must be confirmed against your existing element. The deep-pleat geometry maximizes media area for high air-flow engines (150–400 kW class) under continuous load.

📎 Both elements are primary (outer) stage filters. They work in tandem with a safety element on the inner position. Never operate without the safety element in place — a torn primary during service would otherwise allow unfiltered air straight into the engine.

Fluid / Environmental Compatibility

• Ambient intake air up to 120 °C

  
  

• Relative humidity up to 100 % (non-condensing)

  
  

• Oil-mist environments (common in engine bays) — media treated for oil-mist resistance

  
  

• Dust loads typical of construction, agriculture, mining, and quarry sites

  
  

• Not for corrosive gas streams (SO₂, HCl, etc.)

  
  

Installation & Service

1. Shut down the engine and relieve intake depression.

   
   

2. Open the air cleaner housing (typically band clamp or bolted lid); carefully withdraw the old primary element.

   
   

3. Inspect the safety element — if it shows dust accumulation, replace it (typically every second primary change).

   
   

4. Clean the housing interior with a damp lint-free cloth; check the sealing surfaces and the air-feed duct for leaks.

   
   

5. Seat the new primary element — align end-cap markings with housing keys; ensure the radial seal or facial gasket seats correctly.

   
   

6. Close the housing, torque clamps/bolts evenly. Do not over-torque band clamps — they crush the PU end cap.

   
   

7. Restart and check for air leaks (soap-test intake joints if pressure differential gauge reads abnormal).

   
   

8. Replace per OEM interval (typically 500–1000 h in moderate dust; 250 h in severe dust) or when the restriction indicator reaches redline.

   
   

⚠️ Do not blow out the element with compressed air to "extend" its life — this drives dust deeper into the media and past the fibers, accelerating engine wear. Once the restriction indicator trips, replace.

Quality Assurance

• ISO 5011 – gravimetric efficiency & dust capacity

  
  

• ASHRAE 52.2 – Minimum Efficiency Reporting Value (MERV 14–15 class)

  
  

• ISO 2942 – fabrication integrity (bubble point)

  
  

• Flame retardancy tested per UL 900 Class 2

  
  

• End-cap bond shear-tested to >50 N per pleat

  
  

Ordering

Specify 56040822 (outer primary, agri/telehandler/class compact loader) or 55187529 (primary, construction/agri mid-to-large platform) with quantity. Provide the following to confirm dimensional fit:

• Host machine make and model

  
  

• Existing element OD / ID / length

  
  

• Seal type (radial or facial, polyurethane or nitrile)

  
  

• Whether a safety element is also required

  
  

Cross-reference to common OEM patterns in the same application class is available on request. Custom dimensions or media grades (100 % synthetic for extended life, or with pre-cleaner vortex sleeves) available on request.

All values nominal; 56040822 dimensional envelope and 55187529 exact dimensions vary by host machine — confirm against your current element or housing drawing before installation. Always pair primary replacement with a fresh safety element to guarantee engine protection.