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SF Racing

SF Racing Air Struts for 1991-1998 Mercedes-Benz S-Class (W140)

SF Racing Air Struts for 1991-1998 Mercedes-Benz S-Class (W140)

Regular price $1,895.00 USD
Regular price $2,000.00 USD Sale price $1,895.00 USD
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Listed for: 1991-1998 Mercedes-Benz S-Class (W140)Fitment notes & questions

SF Racing Air Struts for the 1991-1998 Mercedes-Benz S-Class (W140) are engineered for enthusiasts who demand premium ride quality, aggressive stance, and full adjustability. Designed to work seamlessly with most major air management systems, these air struts provide the perfect balance between daily drivability and show-quality fitment. Whether you're looking to slam your car for a clean stance at a car meet or raise it back up for a smooth ride home, SF Air Suspension delivers the flexibility and performance you need.

Each SF Racing Air Strut kit is built using high-strength materials and features precision damping and height adjustability. With SF Racing, you're not just upgrading your suspension—you're unlocking the freedom to dial in your look and performance with confidence. Ideal for those chasing the ultimate stance setup without sacrificing comfort, SF Air Suspension is the trusted choice for form and function.

Features

  • Monotube Damper Design
  • 32-Level Adjustable Damping – Fine-tune rebound and compression for ideal ride quality.
  • Adjustable Ride Height – Lowers 1-3 inches below factory height on average.
  • T6-6061 Aluminum Construction – Lightweight, corrosion-resistant anodized top mounts, perches, and collars.
  • Electroplated Shock Body – Zinc-coated for rust protection.
  • Low-Friction, Pressure-Resistant Housing – Ensures smooth damping and longevity.
  • Pillowball or Reinforced Rubber Top Mounts – Reduces noise while improving handling.
  • SAE9254 Japanese Cold-Wound Springs – Durable and consistent performance.
  • Japanese NOK Seals & Italian IP Damping Oil – Prevents leaks and ensures high-performance damping.
  • Double bellows - Provides increased suspension travel and load capacity.
  • 100% Bolt-On Replacement – No modifications required (unless otherwise stated in the Specifications section).

Specifications

Part Number SF-MB13-05-AS
Vehicle 1991-1998 Mercedes-Benz S-Class
Drivetrain
Chassis W140
Damper Model Air Strut Series
Damping Adjustability 1-Way: Rebound and Compression
Damper Size - Front 50mm diameter
Damper Size - Rear 46mm diameter
Top Mounts - Front Not Applicable
Top Mounts - Rear Not Applicable
Suspension Design - Front Divorced (Separate shock and spring)
Suspension Design - Rear Divorced (Separate shock and spring)
Notes -
View full details

About this air suspension kit for the Mercedes-Benz S-Class

This SF Racing setup swaps the steel springs for air springs, so ride height is set with air pressure rather than a fixed spring.

Fitment notes

  • Listed for: 1991-1998 Mercedes-Benz S-Class (W140).
  • Model years: 1991-1998. Check your car's year falls inside this range.
  • Chassis code W140: the same model name is often used across several chassis codes, so match the code, not just the name.
  • Factory adaptive dampers: if your car has electronic or adaptive suspension, check whether the listing covers it or needs a cancellation kit.
  • Specs, lead time and warranty come from SF Racing and can change. The details above this guide are the latest we have.

Not sure it fits? Tell us exactly what you drive and we'll confirm fitment with the supplier first. It's free and saves a return.

Ask about fitment

What else to plan for

  • An alignment. Any change in ride height changes camber and toe. Set your final height first, then align.
  • Camber and toe adjustment. Bigger drops often need adjustable arms or camber plates to align properly. See alignment and camber kits.
  • Management. Air struts need a compressor, tank and controller unless the listing says they're included.
  • Wheel and tire clearance. Check clearance at full lock and full compression, especially with wider wheels.

More for your car: Mercedes-Benz Coilovers & Suspension · All Air Suspension

Questions about Mercedes-Benz S-Class air suspension

Will this fit my Mercedes-Benz S-Class?
It is listed for the 1991-1998 Mercedes-Benz S-Class (W140). Check your year, model, drivetrain and chassis code against the product title. If anything is different, contact us and we will confirm fitment with the supplier before you order.
Do I need an alignment after installing air suspension?
Yes. Changing ride height changes camber and toe. Set your final height, let the suspension settle, then get the car aligned.
How low can I go?
It depends on the adjustment range the brand lists, your wheels and tires, and how you use the car. Most cars that are driven hard work best with a modest drop that leaves enough suspension travel.
Where do specs and warranty details come from?
From SF Racing. We sell parts from several brands and suppliers, and each one sets its own specs, lead times and warranty terms. The product details above are the latest we have.