Firestone "Coil-Rite" air bag helper springs are designed to fit inside the existing coil spring suspension creating a variable rate spring. These air bags are made of durable, elastic polyurethane providing years of comfort and stability to your vehicle. "Coil-Rite" air bags enable adjustment for varying loads and road conditions by inflating or deflating the springs. Performance can be altered as easily as inflating a tire. Installed between the frame of the vehicle and the suspension providing load support through the use of air pressure.

Features and Benefits

  • Firestone Air Bags are custom fit for the Nissan Altima
  • Easy installation (1 to 2 hours)
  • Includes (2) air bag helper springs and any required hardware
  • Will handle loads capacities up to 500-1000 lbs*
  • Reduce suspension fatigue
  • Improve steering and balance
  • Increase vehicle stability
  • Prevent "bottom" out
  • Firestone Limited Lifetime Warranty

Installation Notes

1. Do NOT exceed the vehicles Recommended Gross Vehicle Weight Rating (GVWR)

Tech Specs

Download Instructions 4105 Instructions
Level Load Capacity: 500 lbs to 1000 lbs
Average Install Time: 1 to 2 hours
Front or Rear Axle: Rear
Drilling Required (Yes or No): No
Weight: 10 lbs.
Part 4105 fits:
  • 2013 Nissan Altima
  • 2012 Nissan Altima
  • 2011 Nissan Altima
  • 2010 Nissan Altima
  • 2009 Nissan Altima
  • 2008 Nissan Altima
  • 2007 Nissan Altima
  • 2006 Nissan Altima
  • 2005 Nissan Altima

Customer Questions & Answers

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We will respond with an answer ASAP.

I wanted to ask if these coil spring air bags raise the rear of the vehicle? And if so by how much? I carry about 200 pound daily in the trunk and the rear if my car drags or bottom outs I would like to hear some suggestions about what I can do to raise the rear of the vehicle. Thanks in advance!!
No these air bags do not lift your vehicle. That is a general misconception regarding air bags. These will handle loads from 500 to 1000 lbs. So these will eliminate sagging when you are hauling 200 lbs they just will not raise the height of your Altima.


  • 5.0 out of 1 Overall
  • 100% reviews recommend this product
Review Product
It was a great idea, enjoyed the outcome.
I replaced the coils at the same time and I can't say more, wife and I really like the extra weight that I can put in vehicle now.
Recommend this Product: YES
Niss 07 Altima
– Value
– Quality
– Installation