The Bilstein B4 is a twintube OE replacement rear shock absorber for 2005-2009 Subaru Legacy models, engineered to maintain the vehicle's original ride quality and bring back its original handling.
Part number: 19-158686
Bilstein shock absorber.
These dampers are the ideal choice for the driver looking to restore the original performance and handling of their vehicle, with the added benefit of world-famous Bilstein quality.
Shocks are matched to a ride height range — confirm the lift height on the vehicle before ordering.
Use the vehicle selector to confirm your exact year and configuration.
Manufacturer data for this part — all visible, no tabs to dig through.
| Brand | Bilstein |
| Part number | 19-158686 |
| Finish | Black Paint |
| Shipping carton | 26.8 × 4.15 × 4.15 in (68 × 11 × 11 cm) |
| Shipping weight | 2.1 kg (4.56 lb) |
| Internal design | Twintube |
| Boot included | No |
| Series | B4 OE Replacement |
| Spring seat included | No |
| Category | Suspension & Lift |
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