-9%
Click to zoom in
Long Front Upper Control Arms Built for JL and JLU Adventure Suspension Setups
The Rock Krawler RK08385 Adventure Series long front upper control arms give 2018 and newer Jeep Wrangler JL two door and JLU four door owners a durable, maintenance free way to dial in caster after a lift. Machined from solid alloy steel and paired with Rock Krawler's Adventure Series joint, these arms deliver factory like ride comfort with real trail articulation.
Key Features
- Solid alloy steel construction resists bending and fatigue on the trail
- In vehicle caster adjustability simplifies alignment after a lift install
- Adventure Series joint provides smooth articulation with zero maintenance
- Sold as a pair for complete front upper control arm replacement
- Long arm design formed for improved frame clearance and up travel
- Backed by Rock Krawler's Abuse Proof Lifetime Warranty on hard parts
Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2018-2025 | Jeep | Wrangler JL 2DR | Sport, Sport S, Willys, Rubicon, Sahara |
| 2018-2025 | Jeep | Wrangler JLU 4DR | Sport, Sport S, Willys, Rubicon, Sahara, High Altitude |
Specifications
| Detail | Value |
|---|---|
| Manufacturer Part Number (MPN) | RK08385 |
| Brand | Rock Krawler |
| Material | Solid Alloy Steel |
| Location | Front Upper |
| Color | Black |
| Quantity | Pair |
| Warranty | Abuse Proof Lifetime Warranty |
| Country of Origin | USA |
What's Included
- 2 RK08385 Adventure Series long front upper control arms
- Mounting hardware
About Rock Krawler
Rock Krawler Suspension has engineered off road suspension systems in the USA for over two decades. The brand is known for zero maintenance Adventure Series joints and long arm control arm designs, like the RK08385, that hold up to daily driving and hard trail use alike.
Related Parts
- Rock Krawler 2018+ Jeep Wrangler JL 2DR / JLU 4DR X Series Front Lower Control Arms
- Rock Krawler 2018+ Jeep Wrangler JL 2DR / JLU 4DR Front Adjustable Track Bar
- Rock Krawler 2018+ Jeep Wrangler JL 2DR / JLU 4DR Front Upper Control Arms
- Rock Krawler 2018+ Jeep Wrangler JL 2DR / JLU 4DR Front Upper Adventure Series Control Arms
FAQ
What is the RK08385?RK08385 is the Rock Krawler part number for the Adventure Series long front upper control arms designed for 2018 and newer Jeep Wrangler JL and JLU models.
What vehicles does this control arm fit?It fits 2018 to 2025 Jeep Wrangler JL two door and JLU four door models across Sport, Sport S, Willys, Rubicon, Sahara and High Altitude trims.
What material is it made from?It is machined from solid alloy steel for strength and long term durability.
Does this arm allow caster adjustment?Yes, it provides in vehicle caster adjustability so alignment can be dialed in after installing a lift.
Is it sold as a single arm or a pair?It is sold as a pair of front upper control arms.
What warranty applies to this part?It is covered by Rock Krawler's Abuse Proof Lifetime Warranty on hard parts.
Do I need additional parts to install it?It reuses OEM hardware at the factory mounting points, so no extra hardware purchase is required for a standard install.
Will it work with a lift kit?Yes, it is designed to complement lifted JL and JLU suspension setups and is often paired with Rock Krawler Adventure Series systems.
Install Instructions
- Raise and safely support the front of the vehicle on jack stands.
- Remove the front wheels for access to the upper control arm mounts.
- Loosen and remove the OEM front upper control arm hardware at the frame and axle mounts.
- Remove the factory front upper control arms.
- Position the arms with the bend oriented down and away from the frame for clearance.
- Secure the new arms using the OEM hardware at both mounting points.
- Set caster adjustment as needed once the vehicle is at final ride height.
- Torque all hardware to factory specification and reinstall the wheels.
Alignment Components
Shop alignment components at Black Ops Auto Works for premium camber kits, caster kits, control arms, toe links, shock mounts, camber plates, and suspension alignment parts designed to improve handling, tire wear, steering response, and suspension geometry. Whether you are dialing in a street car, correcting alignment after lowering your vehicle, or building a track-ready or off-road setup, this collection features high-quality components built for fitment, adjustability, and long-term performance. Shop Alignment Components by Category Browse alignment parts and suspension geometry upgrades across popular product categories, including: Alignment kits Camber kits Caster kits Adjustable control arms Upper control arms Rear toe links and toe arms Shock mounts and camber plates Alignment correction components Suspension geometry upgrades Vehicle-specific alignment hardware These parts are designed to help improve wheel alignment settings, reduce uneven tire wear, increase stability,...
View Alignment Components Products
Control Arms
Control arms are the key suspension linkages that connect the wheel hub and knuckle assembly to the vehicle frame, controlling wheel travel through both compression and droop cycles. Worn OEM control arms with loose ball joints or deteriorated bushings cause vague steering, tire wear, and handling inconsistency that only go away with replacement or upgrade.Popular UpgradesTubular steel upper control arms for lifted trucks and SUVs are the most popular upgrade in the control arm category, correcting the geometry compromised by a suspension lift and restoring proper caster angle and ball joint centering. Adjustable upper control arms allow alignment angles like caster and camber to be dialed in precisely after a lift or lowering modification. Replacement lower control arms with polyurethane or solid aluminum bushings improve response and longevity compared to worn OEM rubber mounts.Why do I need new control arms after a lift kit?A suspension lift changes the angle at which the OEM upp...
View Control Arms Products
Rock Krawler
At Rock Krawler Suspension, innovation and refinement are our foundations! As the originator of 3 Link Suspension Systems, we have set a standard that many have tried to duplicate. However, without a proper understanding, some have given it a bad reputation. Rock Krawler offers the most extensive range of long arm variations in the industry, ensuring there’s a perfect solution for every consumer! Product Highlights Adventure X2 Long Arms: These are full high clearance long arm 4 link front setups with ultra high clearance 3 link setups, designed to provide: Service-free adventure series joints for JK/JL/JT applications Exceptional ride quality Outstanding handling for the avid off-roader X Factor X2 Long Arms: Featuring a high clearance independent 3 link design for front and rear, these long arms offer: 95 degrees of total misalignment capabilities for JK/JL/JT applications Perfect balance for daily drivers and weekend warriors while retaining the stock fuel system Rockzi...
View Rock Krawler Products
Suspension
Aftermarket suspension systems improve handling, ride quality, and ride height adjustment beyond what the factory suspension provides. From lowering springs and coilover kits for sport handling to lift kits and leveling kits for truck and SUV off-road capability, quality suspension components transform how a vehicle rides and handles. Popular Suspension Upgrades Popular suspension upgrades include coilover kits for adjustable ride height and damping, sport lowering springs for improved handling and reduced body roll, performance shock absorbers and strut assemblies, sway bar and end link upgrade kits, subframe brace kits, and complete suspension packages for lifted trucks and off-road SUVs. Alignment kits including camber bolts and camber arms are also frequently ordered after ride height changes. What is the difference between coilovers and lowering springs? Coilovers are complete shock and spring assemblies with adjustable ride height set by threading the spring perch on the shock...
View Suspension Products