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HOT Sales Air Suspension Parts For Watson & Chalin AS-0159 Trailer Firestone W01-358-8774 Air Bag

Minimum Order Quantity : 10 Pieces Price : $1.00 - $50.00/Pieces
Packaging Details : CARTON/PALLET Supply Ability : 2000000pcs/Year
Place of Origin: Guangdong, China Brand Name: VKNTECH
Certification: IATF16949/ISO9000 Model Number: 1k8774

Detail Information

OE NO.: W01-358-8774 Material: Imported Natrul Rubber And Plastic
Price Condition: FOB China Car Model: For Bus/truck&trailer
Warranty: 12 Months Type: By Sea / By Air / By Truck
Sample: Available Operation: Gas-filled
Brand: VKNTECH Or Customized Service Offered: OEM
Type Of Goods: Air Spring/Air Bags/Air Ballons Package: Standard Packing Or Customized
Payment Term: T/T&L/C Suspension System: Air Spring Suspension
Port: Guangzhou

Product Description

HOT Sales Air Suspension Parts For Watson & Chalin AS-0159 Trailer Firestone W01-358-8774 Air Bag


OEM Numbers



Contitech 10 10-21 P 964 NEWAY 90557243

Dayton 452-8744
Automann AB1DK25C-8744    
Triangle AS-8964    



Product Drawing


HOT Sales Air Suspension Parts For Watson & Chalin AS-0159 Trailer Firestone W01-358-8774 Air Bag 1





Air Spring Air Fitting Size Combination Stud/Air Inlet Stud Outside Thread is 3/4-16 ; Studs Inside Thread (Air Inlet) is 1/4 N.P.T.
Air Spring Compressed Height 9.2 in.
Air Spring # of Lobes 1 Solid Sleeve
Air Spring Type 1T - Reversible Sleeve
Bead Plate (Top) & Deflated Bellows O.D. 10.38 and 10.25 in.
Bead Plate (Top) Mounting Bolts Dimension Center to Center 4.9 in.
Diameter 10.12 in.
Extended Height Deflated 27.6 in.
Finished Weight 16.5 lbs
Piston Height 7.4 in.
Bead Plate Top Diameter 10.38 in.
Bead Plate Bottom Diameter 10.25 in.
Application Holland (Neway) 90557243
Assembled Product Weight (lb) 16.5
Bottom Bead Plate Hardware Key Bold or Stud 1/2-13
Compressed Height (in.) 9.2
Extended Height (in.) 27.6
Firestone Bellows Number 1T17B-11
Holland (Neway) Number 905-57-243
Piston Number 9540
Piston Width (in.) 10.25
Replaces Brand & Part # Holland (Neway) 90557243
Top Bead Plate Hardware Key 2 x Threaded Hole 3/8-16 Blind Nut on Bead Plates 1/2-13 in Pistons
Top Plate Width (in.) 10.38
Top Plate Number 3335



Warning and Tips


Maintenance of the air springs, Vehicle Check-List

  •  Check the air lines and devices of leakage and that they turns freely.
  •  Check the bellows bearing for damage, correct fastening, deformation, sharp edges.
  •  Check the shock absorbers for operation and impermeability as well as tightness and bearing.
  •  Periodically, check nuts and bolts for proper torque. For specific recommendations see manufacturer's manual.
  •  Check axle suspension, trailing arms and rods for wear. 
  •  Check height control valve to see that it is functioning properly. A properly maintained valve will save unneeded maintenance expense.
  •  Routine inspection of all of the above according to manufacturer's instructions, will extend the life of your vehicle and reduce your overall maintenance expense. 

Air Spring Installation

  1. Before you start installing air springs, make sure you have all the necessary tools and equipment to perform the repair safely.
  2. Familiarize yourself with the suspension on which you are performing the repair by reviewing the manufacturers service guide.
  3. If you are in doubt about something, ask for assistance from a qualified suspension specialist, the suspension manufacturer or the air spring manufacturer; This can save you a lot of time and aggravation later in the job.

Important tips to remember when installing a new unit

  • Check levelling valve, linkage and transmission parts for wear and damage and if necessary replace the damaged parts.
  • Check that the shock absorber for leakages and take a shock absorber test. A defective shock absorber must be replaced.
  • Once the air lines are disconnected, check their entire length for cracks or other damage. Replace worn parts.
  • With the air spring removed, other parts of the air suspension become more accessible. Check for wear or damage of the frame hangers, trailing arm bushings, torque rods, the trailing arms and the air spring mounts. When it is necessary, also replace parts.
  • Check bearing for air spring bellow for external damage, deformation, sharp edges and correct fastening.
  • Before installing the new unit, clean the air spring mounting plates to ensure proper attachment to the suspension.
  • Always use new attaching bolts for the installation and observe the tightening torques. Never use old bolts, because these can fall out.
  • Check the linkage of the levelling valve to see that it is functioning properly. Under load, the linkage should move from the neutral position up to the intake position. This lets air into the springs, which brings the arm back to the neutral position. This lets air into the springs, which brings the arm back to the neutral position. That opens the exhaust valve, allowing air to escape until the arm returns to the neutral position. Then check the driving level.



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