4" CT4 Suspension System Kit
Estimated Delivery in 3-7 business days
4" CT4 Suspension System Kit
Estimated Delivery in 3-7 business days
| Part Number Options | Item | Quantity | Number Doors |
|---|---|---|---|
| 1224000 | 4" CT4 Suspension System | 1 | 2 Door |
| 1324000 | 4" CT4 Suspension System | 1 | 4 Door |
Features & Highlights:
- Lift Height: 4"
- Max Tire Diameter: 37" CT Long Arm Suspension Systems:
- Adjustable Alpine Long Control Arms & Brackets balance front caster angle and pinion angles as well as optimize rear pinion angle and tune anti-squat geometry for proper suspension alignment on 3-6" lift kits
- Alpine Long Control Arms are constructed from durable 42mm x 4mm (upper) or 50mm x 5mm (lower) wall DOM tube for maximum strength
- On higher lifts, Alpine Long Arm Brackets reposition frame-end control arm mounting points to restore near factory orientation to reduce bushing stress during extreme droop as well as shock load transferred through the Alpine Long Control Arms
- Alpine Long Arm Brackets are gusseted and reinforced for superior strength w/ reduce NVH compared to other long arm kitsCross-Trail:
- Delivers true Cross-Trail (CT) performance
- Dependable performance w/ zero worries
- Positive, responsive handling w/ reduced NVH
- High-quality, dependable, maintenance-free, factory-style bushings provide excellent NVH damping and ride quality.
- HD Forged Adjustable Front and Rear (4"+) Track Bars and Rear Track Bar Bracket improve steering response, center axles to optimize vehicle roll center, and reduce body roll for unsurpassed handling
- Front SpeedBump and rear Progressive Bump Stops provide progressive compression during high-speed suspension movement
- Coil spring retainers prevent the springs from unseating during full suspension travel
- Full range of movement for off-road flex and articulation
- TeraFlex Limited Lifetime Warranty against defects
More Information:
TeraFlex Alpine CT (Cross-Trail) Suspension Systems build on our Sport ST (Street & Trail) Suspension Systems. The TeraFlex 4" Alpine CT4 Long Arm Suspension System is developed for the off-roader craving trails and rocks as well as highway control in a no-compromise package. The Alpine CT4 features our adjustable Alpine Long Control Arms & Brackets as well as HD Adjustable Front and Rear Track Bars for full suspension adjustability no matter the terrain! Our adjustable Alpine Long Control Arms balance front caster angle and pinion angles as well as optimize rear pinion angles anti-squat geometry and tire position on vehicles with 3-6" lifts. On higher lifts Alpine Long Arm Brackets reposition frame-end control arm mounting points to restore near factory orientation to reduce bushing stress during extreme droop as well as shock load transferred through the Alpine Long Control Arms. The HD Forged Adjustable Front and Rear (4"+) Track Bars and Rear Track Bar Bracket improve steering response center the axles to optimize vehicle roll center and reduce body roll to for unsurpassed handling. This results in improved suspension geometry and relaxed control arm angles for a superior ride quality and performance regardless of terrain. These systems restore front and rear roll axis angles to minimize brake dive and acceleration squat. TeraFlex suspension systems provide reduced noise vibration and harshness (NVH). Alpine CT Suspension Systems are engineered for hardcore Jeeping without sacrificing weekday ride comfort! We recommend Falcon Performance Shocks. Falcon shock absorbers and TeraFlex lift coil springs have been engineered together to improve both compression and rebound for optimal vehicle stability. Alpine CT Suspension Systems are offered with Falcon Series 3.3 Fast Adjust Piggyback Shocks or without shock absorbers. Other Falcon shocks are available separately.
Fitment Notes from the Manufacturer:
- JK Wrangler (2-Door)
| Year | Make | Model | Drive | Position |
| 2018 | Jeep | Wrangler JK | 4WD | Factory |
| 2017 | Jeep | Wrangler JK | 4WD | Factory |
| 2016 | Jeep | Wrangler JK | 4WD | Factory |
| 2015 | Jeep | Wrangler JK | 4WD | Factory |
| 2014 | Jeep | Wrangler JK | 4WD | Factory |
| 2013 | Jeep | Wrangler JK | 4WD | Factory |
| 2012 | Jeep | Wrangler JK | 4WD | Factory |
| 2011 | Jeep | Wrangler JK | 4WD | Factory |
| 2010 | Jeep | Wrangler JK | 4WD | Factory |
| 2009 | Jeep | Wrangler JK | 4WD | Factory |
| 2008 | Jeep | Wrangler JK | 4WD | Factory |
| 2007 | Jeep | Wrangler JK | 4WD | Factory |
Teraflex Manufacturer's Warranty
Teraflex 3 Year Warranty covers against defects and premature failure.
Shipping Info
Free Shipping on most orders to the lower 48 U.S. states. Truck freight items (over 100 lbs) and custom orders require a separate shipping quote.
- Applies to items like axles, leaf springs, and long-travel kits.
- No international shipping on freight items — only to U.S.-based freight forwarders.
- Worldwide shipping available: Canada, Europe, UAE, Australia, and most of Asia.
Contact us for an international shipping quote.
Returns & Exchanges
30-Day Return Policy — Items must be new, unused, uninstalled, and include all original hardware.
- No restocking fees for exchanges or gift card credit.
- 10% restocking fee on refunds, returns cost us real money, so the 10% helps keep the lights on.
- Installed, damaged, or dirty parts cannot be returned.
- Any returns missing hardware or miscellaneous items, the return will be denied and returned to the buyer at the buyer's expense.
Return Shipping Responsibility
CHECKOUT+ Package and Order Protection plan provides prepaid return labels for any returned packages, this fee varies by product.
- Our mistake (misboxed, wrong item, damaged): We cover the cost of return shipping.
- Buyer mistake (wrong item ordered, fitment error, changed mind): Return shipping is the buyer's responsibility - unless CHECKOUT+ Package Protection has been purchased.
- Under 50 lbs: Discounted carrier rate
- Over 50 lbs: Discounted carrier rate + $25 oversize fee
Refunds
Refunds are issued within 5–7 business days of receiving your return.
- Funds typically post to your account in 1–3 business days depending on your payment method.
- There is a 10% restocking fee on all refunds. We don’t get our original shipping, labor, or transaction fees back — so the 10% restocking fee keeps the lights on.
- You will receive an email once your refund is processed.
International Orders
- All international orders are final sale.
- Returns via freight forwarders only accepted if the product hasn’t left the U.S.
- Import taxes, duties, and other possible import-related fees are the buyer’s responsibility and not included in our shipping charges.
- We are not responsible for goods once exported outside the U.S.
Product Details
Whether you want to upgrade, add a reservoir, or find something more affordable, contact us with any questions!
View full product specifications
View warranty coverage
Free shipping within the lower 48 United States