ARB BP-51 coilover complete kit for Lexus LX570 on white background
ARB BP-51 rear bypass shock with reservoir mounted on Lexus LX570
ARB BP-51 front coilover with remote reservoir and adjustment knobs
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ARB Old Man Emu BP-51 Bypass Coilover Kit - Toyota / Lexus

Old Man Emu
ARB1209K
Coilovers
2 Units In Stock - Ships Next Business Day
$ 4,289.60
$ 4,289.60

SKU: 1209K

ARB Old Man Emu BP-51 Bypass Coilover Kit - Toyota LandCruiser 200 Series (2008-2021) & Lexus LX570 (2008-2021)

The ARB Old Man Emu BP-51 bypass coilover kit delivers position-sensitive internal bypass technology that provides on-road comfort with progressive damping and full off-road control with increased oil volume and heat dissipation. Featuring 51mm monotube bores, remote reservoirs on all four corners, independent rebound and compression adjustment, and height-adjustable spring seats, this system maintains ride height under load while allowing precise tuning for street, highway, or severe off-road conditions.

Key Features

  • Internal Bypass Technology: Position-sensitive damping with multiple bypass zones for plush ride and bottom-out resistance.
  • 51mm Monotube Design: Large bore with remote reservoirs for consistent performance and fade-free operation.
  • Rebound & Compression Adjustable: 10-click rebound and 8-click compression via top-mounted knobs (front) and reservoirs (rear).
  • Height Adjustable: 50-75mm lift range with threaded spring seats and preload adjustment.
  • 6061-T6 Aluminum Components: Hard-anodized bodies, reservoirs, and fittings for corrosion resistance.
  • Dash-Mountable Control: Optional bypass valve controller for on-the-fly firmness changes.
  • Rebuildable Design: Fully serviceable with worldwide ARB/OME support.
  • Integrated Stone Guards: Protects shafts and seals in harsh environments.

Product Notes

  • Complete front and rear kit includes coilovers, reservoirs, brackets, hoses, and all hardware.
  • Part number: 1209K (BP-51 full kit for 200 Series).
  • Designed for vehicles with up to 200kg constant load (GVM upgrade compatible).
  • Spring rates tuned for 200 Series weight and geometry.
  • Compatible with factory KDSS (with minor modifications on some models).
  • Kit weight approximately 85-90kg total.

Installation Notes

  • Bolt-on installation using factory mounting points.
  • Professional installation and alignment required.
  • Reservoir mounting brackets included secure routing of hoses recommended.
  • Typical installation time 6-8 hours with lift.

This Part Fits

Year Make Model Notes
2008-2021 Toyota LandCruiser 200 Series All models incl. VX, Sahara, GX
2008-2021 Lexus LX570 All models

Why Choose ARB Old Man Emu?

  • Australian-engineered suspension with over 40 years of 4WD development.
  • BP-51 technology proven in outback, desert racing, and overland expeditions.
  • Comprehensive vehicle-specific tuning and worldwide warranty support.

Frequently Asked Questions

  • Q: Does this kit require new springs?
  • A: No, integrated coilover design with adjustable spring seats; no separate coil springs needed.
  • Q: Is KDSS compatibility affected?
  • A: Generally compatible some models may require minor sway bar drop bracket adjustment.
  • Q: Can I add the dash controller later?
  • A: Yes, optional bypass valve controller kit available separately.

Shipping & Handling

  • Method: Freight truck (multiple heavy boxes).
  • Package Weight: Approximately 100–110kg total (split into 3-4 cartons).
  • Box Dimensions (approx): Front pair 90cm × 40cm × 40cm, Rear pair similar + reservoir box.

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