Mercedes-Benz Air Ride Strut / Shock Front, Left 1663205566

OEM Part #: 166-320-55-66 (1663205566)

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AIR RIDE STRUT / SHOCK - Front Left Part Number: 1663205566 This air suspension strut is designed for optimal ride comfort and stability in models including the 2013-2019 Mercedes-Benz GL350, GL450, GLS450, GLS550, GLS63 AMG, and GLS350d. Positioned on the front left, it plays a crucial role in maintaining proper vehicle handling by adapting to road conditions and load variations. Commonly addresses issues associated with uneven ride height or compromised suspension performance. Also known as Exchange Air Suspension Strut. Interchangeable with 1663204966, 1663202513, 166320496680, and 1663207313. Suitable for gas and diesel engines, including the 3.0L V6 and 4.7L V8 variants.

Specifications

Specifications for Air Ride Strut / Shock 1663205566
Fits Vehicle ModelGL350, GL450, GLS350d, GLS450, GLS550, GLS63 AMG
Fits Vehicle MakeMercedes-Benz
OEM Part No166-320-55-66 (1663205566)
Compatible OEM Part No 166-320-49-66, 166-320-25-13, 166320496680, 166-320-73-13
SideFront, Left
CategorySuspension

Compatible Vehicles

Fits 18 vehicle configurations across 1 make, 2013-2019.

Check your specific vehicle before ordering. This list shows year, make, and model. Some years have multiple trims or engines that use different parts, and individual listings may have additional fitment notes (e.g. “with sunroof only”). Review the full variant list below, or message us with your VIN and we’ll confirm the match.

Mercedes-Benz

  • GL350 2013-2016 · 4 variants 4 with notes
  • GL450 2013-2016 · 4 variants 4 with notes
  • GLS350d 2017 1 with note
  • GLS450 2017-2019 · 3 variants 3 with notes
  • GLS550 2017-2019 · 3 variants 3 with notes
  • GLS63 AMG 2017-2019 · 3 variants
View all 18 vehicle configurations 15 with fitment notes
Full vehicle fitment list for Air Ride Strut / Shock 1663205566
Year Make Model Trim Engine Note
2013 Mercedes-Benz GL350 SUV 3.0L V6 Diesel Turbo Exc.Adaptive Control Damping
2013 Mercedes-Benz GL450 SUV 4.7L V8 Turbo Exc.Adaptive Control Damping
2014 Mercedes-Benz GL350 SUV 3.0L V6 Diesel Turbo Exc.Adaptive Control Damping
2014 Mercedes-Benz GL450 SUV 4.7L V8 Turbo Exc.Adaptive Control Damping
2015 Mercedes-Benz GL350 SUV 3.0L V6 Diesel Turbo Exc.Adaptive Control Damping
2015 Mercedes-Benz GL450 SUV 3.0L V6 Turbo Exc.Adaptive Control Damping
2016 Mercedes-Benz GL350 SUV 3.0L V6 Diesel Turbo Exc.Adaptive Control Damping
2016 Mercedes-Benz GL450 SUV 3.0L V6 Turbo Exc.Adaptive Control Damping
2017 Mercedes-Benz GLS350d SUV 3.0L V6 Diesel Turbo Exc.Adaptive Control Suspension
2017 Mercedes-Benz GLS450 SUV 3.0L V6 Turbo Exc.Adaptive Control Suspension
2017 Mercedes-Benz GLS550 SUV 4.7L V8 Turbo Exc.Adaptive Control Suspension
2017 Mercedes-Benz GLS63 AMG SUV 5.5L V8 Turbo
2018 Mercedes-Benz GLS450 SUV 3.0L V6 Turbo Exc.Adaptive Control Suspension
2018 Mercedes-Benz GLS550 SUV 4.7L V8 Turbo Exc.Adaptive Control Suspension
2018 Mercedes-Benz GLS63 AMG SUV 5.5L V8 Turbo
2019 Mercedes-Benz GLS450 SUV 3.0L V6 Turbo Exc.Adaptive Control Suspension
2019 Mercedes-Benz GLS550 SUV 4.7L V8 Turbo Exc.Adaptive Control Suspension
2019 Mercedes-Benz GLS63 AMG SUV 5.5L V8 Turbo

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