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Ironman 4x4

Ironman Nitro Gas Suspension Kit Stage 4 Toyota 4Runner 2003+

Ironman Nitro Gas Suspension Kit Stage 4 Toyota 4Runner 2003+

Regular price $3,119.00 USD
Regular price Sale price $3,119.00 USD
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Front Springs
Rear Springs
Prebuilt Struts

Ironman 4x4 Nitro Gas Suspension Kit Stage 4

Toyota 4Runner 2003+

Ironman 4x4 Nitro Gas Suspension Kits make a big improvement in ride quality, stability, strength, and handling over the stock suspension. 

Perfect for outdoor adventures into the backcountry and back home again without breaking the bank.

Nitro Gas Kits give your 4x4 increased payload capabilities so you can bring all of your bikes, kayaks, and surfboards out to your favorite spots with no compromise of comfort or performance.  Pressurized shock absorber boosts performance and adapts to a wide range of driving styles.

Have a safe and awesome adventure without the worry of your suspension, backed by our solid 3-year warranty, get out and explore!

Nitro Gas Features:

  • NITROGEN GAS PRESSURIZED - Low pressure nitrogen gas dramatically reduces the likelihood of oil aeration and shock fade.
  • 35mm TEFLON BANDED PISTON - Precision shim-stack piston specifically valved by Ironman suspension engineers, banded with teflon for smooth long life operation.
  • 54mm TWIN TUBE BODY - Increased oil volume for improved cooling and endurance, Twin tube construction protects internal components from rock damage.
  • 16mm – 18mm HARD CHROME PISTON ROD - Hardened and polished, volumetrically balanced to piston size.
  • FLEXIBLE RUBBER BUSHES - Offers quieter operation and reduces damaging side loads from shock absorber.
  • TRIPLE-LIP HIGH PRESSURE NOK SEAL - Maximum gas and oil retention ability to withstand high displacement offroad use.
  • SUPPLEMENTARY WELDED MOUNTS -  Fusion welded and supplementary welded for maximum strength and reliability.
  • SINGLE PIECE BILLET EYE RINGS AND STEMS - Ultra robust design prevents breakage or bending of mounts.
  • VEHICLE SPECIFIC VALVING -  Every part number is specially valved for each vehicle application, this ensures the best possible ride and handling as intended by Ironman suspension engineers.
  • LONG TRAVEL - Suitable for standard and raised height vehicles, additional length increases wheel articulation.
  • IMPACT RESISTANT STONE SHIELD - Steel or Polyethylene dust shield protects piston rod from impacts and road debris.


  • Estimated Lift: 2-3"

This Kit Includes:

  • Front Coil Springs (one set)
  • Rear Coil Springs (one set)
  • 12710GR - Front Strut - Nitro Gas (2)
  • 12682GRC - Rear Shock Absorber - Nitro Gas (2)
  • UCA001FA - Front Pro Forge Upper Control Arms (one set)
  • SBEXT006 - Rear Extended Sway Bar Links (2)
  • PANHARD015 - Rear Adjustable Panhard Bar (1)
  • LTA003-4R - Rear Adjustable Lower Trailing Arm (2)
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