Specifications

A leaking or worn suspension air spring can affect your trailer's ride height and load support. This replacement uses a reinforced rubber bellows with a plastic lower base to maintain suspension movement under changing loads. It is designed for compatible Hendrickson INTRAAX and related trailer suspension configurations. Before completing your repair, compare the original component number, mounting hole arrangement, plate diameters, and required operating height. Wofford Truck Parts supplies replacement suspension components for commercial vehicle maintenance. Confirm compatibility and order online today.

Air Spring Part Number: 566.ER8709-36 EA
Weight: 15.60
Type: Rolling Lobe Air Spring
Bellows Type: Rolling Lobe
Bellows Number: 1DK25A
Material: Rubber Bellows + Steel / Plastic Base
Design Height: 10.00
Minimum Height: 4.90
Maximum Height: 19.30
Maximum Diameter: 13.90
Top Plate Diameter: 10.20
Top Plate C to C: 5.50
Bottom Plate Diameter: 9.13
Top Plate Hole/Stud Qty: 2
Bottom Plate Hole Qty: 1
Bottom Plate Type: Plastic Base
Load Capacity @ 80 PSI: 9,040 lbs
Load Capacity @ 100 PSI: 11,300 lbs
Operating Pressure: Up to 100 PSI
Natural Frequency: 84 CPM

Compatibility

Hendrickson INTRAAX trailer air suspension applications requiring the corresponding 8709 rolling-lobe air spring

Hendrickson AAT and AANT trailer suspension applications using compatible S-21800 air spring configurations


Alternative Part Numbers

  • ContiTech 64645
  • Firestone W01-358-8709
  • FleetPride AS8709
  • Goodyear 1R13-159
  • Hendrickson C-21800
  • Hendrickson S-20900
  • Hendrickson S-21800
  • Primeride PR10C15-8709
  • Triangle 6390
  • Triangle AS-8460
  • TRP AS87090

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