ARB BP51 Rear Left Shock Absorber Bypass 51mm

2018–2023 Jeep Wrangler JL 2.5-3.5" Lift

Part #: BP5160034L

Overview

The ARB BP51 Rear Left Shock Absorber is a premium suspension upgrade engineered specifically for Jeep Wrangler JL models from 2018 through 2023. Designed by ARB’s Old Man Emu division, this high-performance shock absorber blends advanced racing technology with everyday drivability, delivering superior chassis control and enhanced ride comfort. Ideal for Jeep enthusiasts who demand exceptional off-road capability without compromising on-road refinement, the BP51 offers precise handling and improved suspension response across a wide variety of terrains.

Developed and rigorously tested in Australia’s harshest off-road environments, the BP51 is built to endure extreme conditions while providing a customizable suspension experience. Its adjustable damping system allows drivers to fine-tune rebound and compression settings to perfectly match their vehicle setup and driving style, making it a versatile choice for both trail adventures and daily driving.

Key Features

The ARB BP51 Shock Absorber incorporates cutting-edge design and premium materials to deliver outstanding performance and durability:

• Bypass 51mm diameter bore technology for superior damping control and smooth suspension articulation
• Position sensitive bypass system with remote reservoir for enhanced heat dissipation and consistent performance under demanding conditions
• Wide range of adjustable rebound and compression settings for personalized ride tuning
• Constructed from aerospace-grade 6061 T6 aluminum with Type 3 40-micron hard anodizing for excellent corrosion resistance and protection against stone damage
• Direct bolt-on fitment for 2018–2023 Jeep Wrangler JL models with 2.5-3.5" lift, requiring no vehicle modifications
• Extensively tested in Australia’s toughest off-road environments to ensure reliability and longevity
• Manufactured in-house by ARB using state-of-the-art machinery for superior quality control
• Combines exceptional on-road ride comfort with firm end-zone damping for enhanced off-road chassis control

Construction & Design

The BP51 shock absorber features a robust construction using aerospace-grade 6061 T6 aluminum, offering an excellent strength-to-weight ratio essential for off-road durability. The entire shock body, remote reservoir, and internal components are hard anodized with a Type 3 40-micron coating, providing outstanding resistance to corrosion and physical damage from rocks, debris, and harsh environmental conditions.

Its remote reservoir design significantly improves heat dissipation, reducing the risk of shock fade during prolonged or aggressive off-road use. The position sensitive bypass technology allows the shock to deliver a smooth, compliant ride over small bumps while providing firm damping during larger suspension movements, ensuring optimal vehicle control and comfort in all driving scenarios.

Installation & Fitment

The ARB BP51 Rear Left Shock Absorber is engineered for direct bolt-on installation on the rear left-hand side of Jeep Wrangler JL models from 2018 through 2023, including Sport, Rubicon, Sahara, Willys, and special editions such as the 80th Anniversary and Freedom trims. This shock absorber fits vehicles equipped with 2.5 to 3.5-inch lift kits without requiring any modifications or additional components, making installation straightforward for professional mechanics and experienced DIY enthusiasts alike.

Compatible with both standard gasoline and 4xe hybrid variants, the BP51 offers broad applicability across the Jeep Wrangler JL lineup, ensuring a seamless upgrade for enhanced suspension performance.

What's Included

• One ARB BP51 Rear Left-Hand Shock Absorber (Part # BP5160034L)
• Remote reservoir assembly
• Mounting hardware for direct fitment
• Adjustment tools for rebound and compression tuning
• User guide with detailed instructions for setup and customization

Ideal For

The ARB BP51 Shock Absorber is perfect for Jeep Wrangler JL owners who seek a high-quality suspension upgrade that balances daily driving comfort with serious off-road performance. It is especially suited for enthusiasts who frequently tackle challenging trails, rock crawling, desert runs, or any demanding off-road terrain and want the ability to customize their ride characteristics. This shock absorber also benefits drivers looking to enhance vehicle stability, handling precision, and overall ride quality without sacrificing on-road refinement.

ARB is a globally recognized off-road and overlanding brand that builds hard-use equipment for trucks, SUVs, and adventure rigs. From bumpers, roof racks, and protection gear to its well-known Old Man Emu suspension systems, ARB focuses on durability, fitment, and real-world trail performance for drivers who push beyond pavement.