Suspension covers a wide range of parts, and the used-versus-new answer is not the same for all of them. The useful split is between wear items, where a used part carries unknown remaining life, and structural or hard parts, where a used item can be excellent value.

Dampers are wear items

A shock absorber or strut damper wears continuously and progressively. There is no reliable way to judge the remaining life of a used damper from a photograph, and a tired one degrades handling and braking stability without ever obviously failing. On top of that, dampers should be replaced in axle pairs - fitting one new-to-you damper alongside an older one leaves the axle unbalanced, which affects how the car behaves under braking and in a swerve.

If you are buying used dampers anyway, ask for evidence of the donor vehicle's mileage, and check for oil weeping down the body, a dented or scored shaft, corrosion at the seal, and damaged mounting eyes or threads. Weeping is a clear reason to decline. Be realistic that you are buying a partly used consumable.

Where used suspension parts are good value

  • Steering knuckles and hub carriers - solid castings, easy to inspect, expensive new.
  • Control arms, provided the bushings and any integral ball joint are sound.
  • Complete strut assemblies where the spring, mount and bearing come together and the alternative is buying each separately.
  • Subframes, brackets and mounting hardware - see our subframe and crossmember guide.
  • Air suspension components, where new prices are very high - but ask carefully about the air spring, which is a perishable rubber component.

What to inspect

  • Bushings: cracked, perished or separated rubber. These are often the reason the part was replaced.
  • Ball joints: free play, torn boots. A torn boot means the joint has been ingesting water and grit.
  • Corrosion: particularly on vehicles from areas that salt the roads. Surface rust is normal; flaking or perforation is not.
  • Straightness: any suspension part from an impact-damaged vehicle should be treated with suspicion. Bent components will not align.
  • Threads and mounting faces: undamaged, no previous repairs.
  • Sensors: ride-height or ABS sensors mounted to the part, if applicable.

Plan an alignment

Any suspension work that disturbs a mounting point needs a wheel alignment afterwards. Budget for it. On vehicles with driver-assistance systems, an alignment or a ride-height change may also require ADAS calibration - see our ADAS calibration guide.

Suspension is a safety system. If the vehicle is handling oddly, pulling, or making noise over bumps, have it inspected rather than continuing to drive on it.

Before you commit

Confirm the part number, the side, the donor mileage and the bushing condition. Our 30-day limited warranty (up to 90 days on select parts, where your quotation says so) covers the part itself, not labour, installation, diagnostics or any other repair cost. Returns must be requested within 7 calendar days of delivery and need a written RMA from us before anything is sent back.

Use the shock absorber quote page, the suspension assembly quote page, or the part request form with your VIN.