Carbon Offroad 3.0 inch ID, 12 inch, progressive rate coilover coil spring 70-130kg load PAIR - 4X4OC™
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Carbon Offroad 3.0 inch ID, 12 inch, progressive rate coilover coil spring 70-130kg load PAIR

In stock
Coil Spring
$289.00 AUD
$289.00 AUD

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Carbon Offroad 3.0 inch ID, 12 inch, progressive rate coilover coil spring 70-130kg load PAIR

Carbon Offroad Progressive Rate Coilover Coil Springs

Carbon's professionally engineered progressive rate coil springs were specifically designed here in Australia and offer an improved ride quality over the factory spring on your 4x4. The natural progression of this design is to be tough enough with increased rates designed for additional accessory loads and still maintain a driver friendly feel.  The Carbon Coil Springs are designed to work with the range of Carbon MT2.0 Struts.

What makes the Carbon Coil Spring better than other springs on the market?

Our  focus on the Carbon Coil Spring was to deliver to the market a suspension system that is comfortable on road and can handle additional accessory loads and improve the vehicle on road handling, then while offroad with increases with travel and improved articulation, this has been done by utilising our own custom progresive rate coil design specifically to suit 4wd's alike.

Driving comfort never felt so good.

Designed to offer you a smooth riding experience, the Carbon 4x4 Coil Springs takes an already great product and makes it even better. The special formulated spring steel used resists fatigue and sagging and is powder coated for protection against the elements for longevity.

The progressive rate elements with these coils, ensures large bumps in the road will be soaked up without transmitting that force to your chassis thanks to its unequaled ability to flex evenly and uniformly under load. These are not your typical progressive rate coil springs!

If you want the ride you deserve, upgrade to a set of Carbon Progressive Rate Coil Springs for your 4wd.


Manufacturing processes -

- Manufactured from high grade carbon spring steel. 

- CNC mandrel bent for a precise manufacturing process. 

- Each spring is scragged (compressed to coil bind to set the spring height)

- The outer surface of the coil is blasted with steel bearings to relieve the surface tension for a uniformed finish.

- Powder coated for protection from rust and corrosion.

- Each coil is checked ensuring a high level of quality control.

- For universal coil over applications, both ends are ground flat for an even mating surface.


  • 12 inch free height 

  • progressive rate design

  • 70-130kg constant load on front end of most dual cabs

  • flat ground ends

  • 3.0 inch inside diameter, will work on Carbon MT2.0 coilovers, Fox 2.0 IFP coilovers. Fox 2.5 series coilovers, King 2.5 coilovers, Radflo 2.5 coilovers, Icon 2.5 coilovers and any other brand that takes a 3 inch ID coilover spring.  

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All orders placed on 4X4OC will receive an email confirmation with a tracking number.

Please note that, once a tracking number has been issued, it is the customer's responsibility to keep up to date with tracking updates. Any courier issues are to be followed up with the courier/freight company directly by you (customer). We can assist where possible, however, once the item has been dispatched it is out of our control.

If you haven't received your order by the ETA, please feel free to email so that we can do our best to follow up on your order with the courier company.

We ship with various shipping providers to best suit the product ordered. We mostly use:

- AusPost Regular
- AusPost Express
- StarTrack
- DHL International
- Toll Ipec
- & More

Some larger orders may be dispatched from the supplier directly where alternative shipping companies are used. This saves on double handling, reduces shipping time and overall reduces our carbon footprint. The courier being used will be stated on the checkout page and when you receive your tracking details.

Please note: timeframe estimates are from when the parcel is sent and only account for business days.

All orders are processed and sent as soon as we can. The time frame may include delays out of our control. International orders may even arrive faster than the 10 days minimum depending on the current climate and demand.

Should you have any shipping related enquiries, please do not hesitate to get in contact with us. Our aim is to provide a smooth and professional service at all times.

Please take the time to read through our returns policy.  Upon purchase, you agree to this policy and understand that our policy does not go against your rights detailed under the Australian Consumer Law. 


By purchasing a product from 4X4OC, your purchase of goods come with automatic guarantees that they will work and do what you asked for. If you buy something that isn't right, you have consumer rights which you can find here.


In line with your consumer guarantee rights, repairs, replacements or refunds do not apply if you received what you asked for but simply:

  • changed your mind;
  • found it cheaper somewhere else;
  • decided you did not like the purchase; or
  • had no use for it.

Should you change your mind within a 14 day timeframe, we will provide you with a refund or store credit.

Please note that, shipping costs are not refundable for change of mind returns.  You are also responsible for covering the costs to send the product/s back to us.


Minor problems may be repairable, where we may offer a free repair instead of a replacement or refund.  For any major problems, you have the right to request either a refund or new replacement.

Should we not be able to provide a free repair within 28 days, we will provide you with a full refund or replacement.


We understand that some products may fail over time due to their purpose/intended use or treatment. 4X4OC will take the following into account prior to offering a replacement or refund:

  • type of product;
  • how you were likely to use the product;
  • the length of time for which it is reasonable for the product to be used; and
  • the amount of use it could reasonably be expected to tolerate before the failure becomes noticeable.

Should we discover signs of misuse and significant neglect, we reserve the right to decline a refund, exchange, credit or repair.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.


To complete your return, we require a receipt or proof of purchase.

All returns to be posted/freighted back at the buyer's expense.

Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.

If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.


If you haven’t received a refund yet, first check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially posted.

Next contact your bank. There is often some processing time before a refund is posted.
If you’ve done all of this and you still have not received your refund yet, please contact us at


We only replace items if they are defective or damaged.  If you need to exchange it for the same item, send us an email at so that we can commence the exchange process.

Please note if the incorrect part/s were sent out to you, we can only exchange for the correct parts if the incorrect items are unused and in original condition.


To return your product, you should mail your product to:

Suite 6, 828 High Street
Kew East VIC 3102, Australia. 

You will be responsible for paying for your own shipping costs for returning your item/s. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.

Depending on where you live, the time it may take for your exchanged product to reach you may vary.

If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.  We are not responsible for lost, stolen or undelivered returned parcels.

Please note, for all items where the "Add to cart" button is replaced with "Pre-Order", this is a pre-order item. A warning box will appear with terms and conditions of the pre-order which states the estimated delivery time.

Please be patient once a pre-order has been made. As the stock is not on hand, we have zero control of the delivery times until we receive the stock.

Pre-ordering is a great way to lock in the hot selling products which generally sell out/are totally sold out once the stock arrives.

Please allow a buffer of 2-3 weeks on all pre-order ETA's to allow for any unforeseen delays out of our control, especially during this pandemic (COVID-19).


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