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SKU: 45001FE-PB
Foam Cell Technology
Twin-Tube Design
Ride Height Adjustable
4 Years/Unlimited Miles
On orders over $500 (certain exclusions apply)
Overall rating: 4.0 / 5 from 1 reviews.
Review topics: [].
"I am not sure if 4 out of 5 is fair. I had the foam cell with the medium coil and my front end was really low. Not sure if maybe they wore out or I had too much weight. Went to these with the heavy coil and got the front end exactly how I want. No nose dive at all! BUT rides a lot stiffer. So hope they break in. For daily driving fine just feel the road a little more. For off road I went on a rocky trail and it was not that good."
Take your Toyota Tundra to the next level with the IRONMAN 4X4 USA Foam Cell Pro Pre-Built Coilover Kit featuring 3.5" lift. This complete suspension system is trusted by the US Military and provides superior performance for both on-road comfort and off-road capability. The pre-built design ensures optimal performance right out of the box, perfect for serious off-road adventures and overlanding expeditions. They require less maintenance than other performance shock absorbers and are rebuildable by design.
Foam Cell Technology: Increases shock performance & eliminates shock fade by increasing thermal capacity and eliminating high internal pressures.
2.4” Twin Tube Body: Increased oil volume for improved cooling and endurance. Twin tube construction protects internal components from rock damage.
Hard Chrome Piston Rod: Hardened and polished, volumetrically balanced to piston size.
Flexible Rubber Bushings: Offers quieter operation and reduces damaging side loads from shock absorber.
Supplementary Welded Mounts: Fusion welded and supplementary welded for maximum strength and reliability.
Single Piece Billet Eye Rings & 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 4X4 suspension engineers.
Extended Travel: Extended travel over OEM suspension. Suitable for standard and raised height vehicles, additional length increases wheel articulation.
Impact Stone Resistant Shield: Steel or Polyethylene dust shield protects piston rod from impacts and road debris.
Overall rating: 4.0 / 5 from 1 reviews.
Review topics: [].
"I am not sure if 4 out of 5 is fair. I had the foam cell with the medium coil and my front end was really low. Not sure if maybe they wore out or I had too much weight. Went to these with the heavy coil and got the front end exactly how I want. No nose dive at all! BUT rides a lot stiffer. So hope they break in. For daily driving fine just feel the road a little more. For off road I went on a rocky trail and it was not that good."
Absolutely. Send your vehicle details, intended use (daily, towing, overlanding), and current mods, and we’ll recommend the correct configuration the first time. You can contact us here.
Yes—many products include instructions in the box and/or downloadable PDFs. Check the product page for “Vehicle Fitment & Installation/User Guide” tab. If you don’t see it, contact support here and we’ll send the correct install guide for your SKU.
Small items typically ship parcel; oversized items (bumpers, tents, long packages) ship freight, which is noted on the product page under the add to cart button. Transit time varies by location and carrier. We typically ship orders within 2 business days of purchase.
Warranty varies by product category. The product page lists the applicable warranty under the add to cart button. If you want confirmation before ordering, contact us or see our warranty policy here.
Returns are accepted under our returns policy within 30 days of purchase. See our return policy here for full details. Because many items are vehicle-specific, verify fitment before installing. For the quickest help, contact us with your order number and the item condition.