Application Compatible for Buick Regal GS 2012-2017 Compatible for Vauxhall / Opel Insignia A (G09) 2008-2017 Interchange Part Number: Rear Left: 436853, 22834093, A436853, A22834093 4 36 853, 22 834 093, A 4 36 853, A 22 834 093 22744712, 84226150, 22961775, 22834093 Rear Right: 436854, 22834094, A436854, A22834094 4 36 854, 22 834 094, A 4 36 854, A 22 834 094 22744713, 84226151, 22961776, 22834094 Specification: Condition: Brand New Fitment Type: Direct Replacement Quantity: 2 pieces Placement on Vehicle: Rear Left Right Greasable or Sealed: Sealed Feature: 1.100% Air tightiness testing 2.24 hours air tightness test ≤0.02 M Pa 3. Stress test over 5, 000, 000 times: durable & safe 4. 4-Layer reinforcement construction: Enhances air spring load support 5. CNC machined components 6. Anti-corrosion & provide a more consistent wear surface 7. Sturdy & durable material 8. Built to strict quality control standards 9. Easy to install 10. Direct replacement...