Alpine IR Adjustable Long-Arm Control Arm Kit – 8 pcs for Jeep Wrangler JK (2007–2018)

The Alpine IR adjustable long-arm control arm kit provides full adjustment of suspension geometry and maximum reliability for Jeep Wrangler JK models with a 3 to 6-inch lift.

The special maintenance-free IR bushings allow free suspension movement without limiting travel, while reducing vibration and improving comfort both on and off the road.

The kit is designed for use with a long-arm mounting bracket kit (not included) and can be added to an existing lifted suspension.

✅ Key Benefits

✔ Full adjustment of suspension geometry

✔ Free suspension movement at full travel

✔ Improved traction and articulation

✔ Reduced vibration and noise

✔ Maintenance-free

✔ Suitable for vehicles with a 3 to 6-inch lift

✔ Excellent on-road and off-road behaviour

✔ Extremely strong construction

📦 What’s in the Box

🔹 Alpine IR adjustable long-arm control arm kit

• Front upper control arms (#1315570)

• Front lower control arms (#1315580)

• Rear upper control arms (#1315590)

• Rear lower control arms (#1315600)

• All required fasteners

⚠️ Important

❗ Requires the long-arm mounting bracket kit (#1957000)

❗ Mounting brackets are not included

🔧 Technical Specifications

📏 Front upper control arms

• Tube diameter: 42 mm

• Wall thickness: 4 mm

• Stock length: 18 3/4”

• Minimum length: 27 3/8”

• Maximum length: 28 7/8”

• Axle bolt: 12 mm

• Frame bolt: 14 mm

📏 Front lower control arms

• Tube diameter: 50 mm

• Wall thickness: 5 mm

• Stock length: 22 5/8”

• Minimum length: 33 3/4”

• Maximum length: 35 1/4”

• Bolts: 14 mm

📏 Rear upper control arms

• Tube diameter: 42 mm

• Wall thickness: 4 mm

• Stock length: 17 7/16”

• Minimum length: 20”

• Maximum length: 21 1/2”

• Bolts: 14 mm

📏 Rear lower control arms

• Tube diameter: 50 mm

• Wall thickness: 5 mm

• Stock length: 19 3/4”

• Minimum length: 35 3/4”

• Maximum length: 37 1/4”

• Bolts: 14 mm

🚗 Compatibility

✔ Jeep Wrangler JK 2-Door (2007–2018)

✔ Jeep Wrangler Unlimited JK 4-Door (2007–2018)

📊 Specifications

🔧 Type: Adjustable long-arm control arm kit

📏 Suitable lift: 3–6 inches

⚙ Number of control arms: 8

🔩 Bushings: IR with increased freedom of movement

🛠 Installation: To a long-arm bracket kit

🏔 Intended use: Off-road, overlanding and daily driving

🇺🇸 Made in the USA