4WD Suspension Air to Coil Spring Conversion Kit with Gas Shocks Bundle - Navigator & Expedition

Key Features:
  • Saves You Money Compared To OEM/Dealer Prices
  • Installation Instructions Included
  • Brand NEW

Order Includes:
Order Includes: 2 Front Shocks Assembled with Helper Springs, 2 Rear Heavy Duty Coil Springs, 2 Rear Shocks, 2 Insulators

Out Of Stock
Part Number 53F-30-4-KIT
Condition New
Ships Within 1-2 Business Days
This item qualifies for FREE UPS Ground Shipping
Notify Me
Suncore’s Front and Rear Air Spring to Coil Spring Conversion Kit Part 53F-30-4-KIT for your Expedition or Navigator is the perfect upgrade for an aged and failing air suspension system.
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Arnott Industries: C-2608
Cardone New: 4J-1005K
Westar: CK-7809WS
Westar: CK-7815
WARNING CA Proposition 65
WARNING CA Proposition 65


Suncore Industries was established in 2000 and have been a member of the Automotive Parts Rebuilders Association (APRA) ever since. Our mission began with rebuilding air suspension components and moved quickly into offering better solutions with conventional suspension conversion kits to give our customers the longevity they can rely on.

The most common reason for an air strut failure is due to dry rotting of the air bag. This is something that happens over time, the air bag starts to deteriorate and causes leaks, when this happens the air bag can no longer hold air pressure. A leaking air bag can cause the strut it fits over to fail as well. The second factor of an air strut failure is the strut itself. The strut is pressurized with fluid, and if the strut begins to fail it will no longer have the same pressure to hold the vehicle. If this system begins to fail one visible sign will be that your vehicle will be lower than factory height. If Air Struts are not replaced on time, it will cause an Air Suspension Compressor Failure.

We are happy to offer free UPS ground shipping on all orders to the lower 48 States.

Unfortunately since these parts are quite heavy and large we cannot offer free shipping to Puerto Rico, Hawaii nor Alaska. (We do offer shipping to these areas, but it will be based upon UPS quotations. Please feel free to contact us directly.)

We do not ship to P.O. Boxes nor APO's as UPS will not deliver to these locations.

If you would prefer a different or expedited shipping option, please contact us and we will be glad to work around your needs.

Business hours are Monday to Friday 9am to 5pm EST.

We ship UPS Ground by default
Same-day shipping will be provided for orders placed before 2PM EST
Orders after 2PM EST will be shipped the next business day
Orders on the weekend will be shipped the next business day
Orders on a holiday will be shipped the next business day
Tracking will be provided immediately to the email provided in your order
Signature required is mandatory on any order over $400
Signature required may be requested on orders below $400

Complete strut assembly free shipping ups ground
Please refer to this chart for estimated transit times. We are shipping out of the warehouse in Boynton Beach, Florida zip code 33426

4.7 out of 5 stars
10 total ratings
Verified Buyer
A really great kit: affordable and easy to install. I’d recommend spring compressors (that’s what I used) for easier install. It’s been about 8 months of use and the ride is still great. Thanks
Reviewed on 1/25/2021
Verified Buyer
I was looking for a simple solution to do away with the failing air suspension in my Lincoln navigator. I was pleasantly surprised to find that this kit was available when I received it went through the parts to make sure I had everything and it bolted right in just like they said. the quality of the shocks and the ride I’m getting from the vehicle now are so much better than the old system. I should’ve done this long ago. All I needed were some simple tools and some help from my son.
Reviewed on 11/2/2020
Verified Buyer
Works and direct fit.. But I was told the ride height would remain the same. After installing the kit my truck now sits 3 to 4 inches lower and now my tire rubs the fender
Reviewed on 10/9/2020
Verified Buyer
fast delivery, in stock and easy to install.
Reviewed on 10/9/2020
Verified Buyer
Everything arrived as expected. Good quality, fast service. My husband, the mechanic was very happy with this purchase. Will definitely shop here in the future.
Reviewed on 10/1/2020
Verified Buyer
Great!! Ovwr a year now and still going strong!
Reviewed on 9/30/2020
Verified Buyer
The kit fit great, no problems at all. Easy and cheaper fix to my old airride. I do wish the springs were a little more firm for my liking, as it sags easy with small loads.
Reviewed on 9/18/2020
Verified Buyer
Best deal on shocks and the quality is phenomenal. Been running my expedition for over a year and a half without any problems after tearing the air right out. When it comes down to bang for your buck and good quality, these the folks I'm going to be going with
Reviewed on 8/4/2020
Verified Buyer
Did what I wanted. Super easy install. Great produce
Reviewed on 8/30/2019
Verified Buyer
Reviewed on 5/15/2019
Showing comments 1-10 of 10

4WD Suspension Air to Coil Spring Conversion Kit with Gas Shocks Bundle - Navigator & Expedition

Are all your 4WD suspension air to coil spring conversion kits to HD shocks? I have a 2001 Lincoln Navigator 4X4.

Customer Service

Hi Ben, If you are looking to convert your entire suspension I recommend the part you are viewing. This will get you entirely out of air suspension into a quality conventional ride. If you need anything else, please let us know. -Setphanie

Will this fit all wheel drive 2001 navigator

Customer Service

Glen, This is the exact match for your vehicle! These parts replace your electronic suspension and get you into a passive system. Full instructions are included in the box, let us know if you need anything else. -Stephanie