Application Compatible for BMW 5-Series F07 F10 F11 2009-20175-Series Gran Turismo (F07) Models Include:520d, 530d X, 530d, 535d X, 535d, 535i, 535i X, 550i X, 550i 5-Series Touring Wagon (F11) Models Include:520d, 520i, 523i, 525d, 528i, 530d, 530i, 535d, 535i, 550i. Specifications Reference OE/OEM Number:37106781827, 37 10 6 781 827,37 10 6781827,678182737106781828, 37 10 6 781 828,37 10 6781828,678182837106781843, 37 10 6 781 843,37 10 6781843,678184337106781844, 37 10 6 781 844,37 10 6781844,678184437106784378, 37 10 6 784 378,37 10 6784378,678437837106784379, 37 10 6 784 379,37 10 6784379,678437937106784380, 37 10 6 784 380,37 10 6784380,678438037106784381, 37 10 6 784 381,37 10 6784381,6784381 Condition: New Fitment Type: Direct Replacement Quantity: 2x Air spring Placement on Vehicle: Rear left & right Warranty: one year warranty for any manufacture defect Greasable or Sealed: Sealed Length, width & height (in/cm): 14.6*10.4*7.3/37*26.5*18.5 Weight: 5.09 lbs Stroke: 10cm±2.5cm Operating Pressure: ≤ 2 Mpa Temperature range:≤+70° ,≥-40° Feature 1. 100% Air Tightiness testing 2. 24 hours air tightness test ≤0.02 M Pa 3. Anti-corrosion & provide a more consistent wear surface 4. Built to strict quality control standards 5. CNC Machined Components 6. Designed for Comfort Suspension 7. Direct replacement for OEM strut without modification 8. Easy to install 9. Eliminating abnormal sound 10. Gives the driver more control of ride 11. Good heat dissipation 12. It has a high compressive strength & good sound insulation to ensure our driving comfort & safety 13. Restore the original ride height & improve ride quality 14. Test more than 3 million times 15. Sturdy Durable Material Notice 1. It is an aftermarket air spring, it serves as a replacement for the original air spring.2. We recommend professional installation.3. If you have any questions, please do not hesitate to contact us.