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Boss PAIR of Bag Over Struts Complete ST-18-31 COMP


Boss Air Suspension

Most orders are dispatched within 24 hours!
Product Code: ST-18-31 COMP x2

Boss PAIR of Bag Over Struts Complete ST-18-31 COMP


The only truly “easy to use” universal “bag over” strut. BOSS “bag over” struts suit virtually any strut equipped car, Clevis mount, loop /loop or pin/loop fitments. We offer 5 lengths, all providing 10 position dampening. 22mm chromed shaft with a 50mm shock body enables any clevis or loop to be installed at the bottom or top. Steel top plates with lipped seals to prevent any leaks and exclusive BOSS pivot ball tops for fitting to most cars are supplied.

Key Benefits

  • Built strong and safe with pre welded bag plate.
  • Use in any coil-over or McPherson strut application where space prevails.
  • Able to have clevis or Ball mount welded directly to heavy wall shock body and with the bag mount already welded to the shock before assembly enables a wide range of vehicles to be covered.
  • Top 22mm shaft features a female thread to enable any combination of top mounting.
  • 10 position adjustable dampening is standard on all boss struts
  • Steel top seal plate prevents any chance of leakage
  • BOSS struts use U lipped seals for an airtight fit over strut shaft.
  • A flare fitting is tig welded directly onto the bag plate.
  • 2500 BOSS bag compatible
  • 50mm diameter strut body for easy compatibility
  • Unpainted bottom for easy welding on of clevis
  • Complete BOSS struts are supplied with 3/8″ DOT Rubber strut hoses for superior protection and movement.

Fast Dispatch

Once payment has cleared we will post your item as soon as possible. However, If the item is purchased after 2pm, it will be shipped the next day.

Combined Shipping

We combine shipping for orders with multiple items to save our customers money on postage.


Most orders will be sent with a tracking number, to confirm if your item has tracking please contact us.

Please note:

Additional postage charges may apply for regional or remote areas, please contact us if you are unsure about your area.

All efforts will be made to send out orders as soon as possible so you receive your item on time. However please be aware that once an item is sent from our warehouse it is out of our control.

If you would like registered post with signature on delivery and insurance please contact us before purchasing the item.

As per Australia Post policy, all EXPRESS postage automatically have ATL (Authority to leave) which means if you’re not home at the time of delivery it will be left on the premise in a location deemed safe by Australia Post. More information about ATL can be found here

Local Pickup: Please allow up to 2 business days for local pickups

Please ensure your contact number is included and correct. Failure to do so could result in delayed shipping and/or extra delivery charges in the event of a missed delivery.

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