Old Man Emu BP-51 3-Inch Medium Kit with Upper Control Arms for 2005-2023 Toyota 4Runner (4RBP51MP)

Fits 2005-2023 Toyota 4Runner models including SR5, Limited, TRD Off-Road, TRD Pro, and Trail editions.

The Old Man Emu BP-51 (Bypass 51mm) suspension system brings race-proven internal bypass technology to the Toyota 4Runner. These position-sensitive shocks feature a 51mm diameter bore and are designed to provide superior damping control across the entire stroke. By utilizing internal bypass passages, the BP-51 maintains a plush ride during normal travel while increasing damping force at the end-zones to prevent bottoming out during aggressive off-road maneuvers. Each shock is equipped with a remote reservoir to increase oil capacity and enhance heat dissipation during high-speed desert runs or technical trails.

This medium-duty 3-inch lift kit is engineered for vehicles with moderate accessory weight. The shock bodies and reservoirs are CNC-machined from 6061 T6 aluminum with a Type 3, 40-micron hard-anodized finish for maximum corrosion resistance and thermal efficiency. The system allows for independent adjustment of both rebound and compression, enabling drivers to fine-tune the suspension to their specific cargo load and terrain requirements.

• Bypass 51mm diameter bore for position-sensitive damping
• Independent compression and rebound adjustment
• High-grade 6061 T6 aluminum body and remote reservoir
• Type 3, 40-micron hard-anodized finish
• Includes application-specific Upper Control Arms (UCAs)
• 6061 grade aluminum top hats
• Bolt-on installation requires no vehicle modifications
• Manufacturer Part Number: 4RBP51MP