2003 Cadillac CTS Air Suspension and Kits

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Keep Your 2003 Cadillac CTS in Top Shape with Quality Air Suspension and Kits

Whether you’re repairing or upgrading your Air Suspension and Kit, using high-quality parts is key to keeping your 2003 Cadillac CTS looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Shock Absorber Kits, Active Suspension Relays, and Shock Conversion Kits. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Competitive Prices and Extensive Inventory

The average price for a 2003 Cadillac CTS Air Suspension and Kit at Advance Auto Parts is around $180.49, with a range that starts at $32.99 and goes up to $324.99. With 6 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Multi-Purpose Relay, Shock Kit, and PassiveSuspConvKt start at just $32.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Air Suspension and Kit, don’t forget to check out other key components like Shocks and Struts and Suspension Hardware. At Advance Auto Parts, we’re here to help you keep your 2003 Cadillac CTS in peak condition, inside and out.

Essential 2003 Cadillac CTS Air Suspension and Kits

Carquest Premium – Multi-Purpose Relay (Part No.RAA1236)

Multi-Purpose Relay

from

$26.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
  • Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
  • Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
  • Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
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GM Genuine Parts – Multi-Purpose Relay (Part No.15-81106)

Multi-Purpose Relay

from

$32.99
GM Genuine Parts Wiring Relays are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These relays help connect or disconnect power to a vehicle accessory when it receives a low voltage signal from a switch. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Product Features:
  • Helps connect or disconnect power to vehicle accessories
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies
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Suncore – Shock Kit (Part No.2-12S251160-001)

Shock Kit

from

$139.99
Shock Kit

Suncore – PassiveSuspConvKt (Part No.152G-12-F)

PassiveSuspConvKt

from

$79.99
PassiveSuspConvKt

Suncore – PassiveSuspConvKt (Part No.152G-12-4)

PassiveSuspConvKt

from

$239.99
PassiveSuspConvKt

Suncore – PassiveSuspConvKt (Part No.155G-32-R)

PassiveSuspConvKt

from

$264.99
PassiveSuspConvKt

Suncore – AirSp/ClSpCnvKt (Part No.152G-32-4)

AirSp/ClSpCnvKt

from

$324.99
AirSp/ClSpCnvKt

Most Popular Shock Absorber Kit for 2003 Cadillac CTSs

Enhance your 2003 Cadillac CTS with this popular Shock Absorber Kit we have in stock, for $139.99.

Suncore – Shock Kit (Part No.2-12S251160-001)

Shock Kit

from

$139.99
Shock Kit

Best-Selling 2003 Cadillac CTS Active Suspension Relay

Upgrade your CTS with our best-selling Active Suspension Relay.

GM Genuine Parts – Multi-Purpose Relay (Part No.15-81106)

Multi-Purpose Relay

from

$32.99
GM Genuine Parts Wiring Relays are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These relays help connect or disconnect power to a vehicle accessory when it receives a low voltage signal from a switch. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Product Features:
  • Helps connect or disconnect power to vehicle accessories
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies
See More

Top-Quality Shock Conversion Kits for 2003 Cadillac CTSs

Choose a high-quality OEM or aftermarket Shock Conversion Kit for Cadillac CTSs and enjoy top-notch performance from $79.99.

Suncore – AirSp/ClSpCnvKt (Part No.152G-32-4)

AirSp/ClSpCnvKt

from

$324.99
AirSp/ClSpCnvKt

Suncore – PassiveSuspConvKt (Part No.155G-32-R)

PassiveSuspConvKt

from

$264.99
PassiveSuspConvKt

Suncore – PassiveSuspConvKt (Part No.152G-12-4)

PassiveSuspConvKt

from

$239.99
PassiveSuspConvKt

Suncore – PassiveSuspConvKt (Part No.152G-12-F)

PassiveSuspConvKt

from

$79.99
PassiveSuspConvKt

FAQs for 2003 Cadillac CTS Air Suspension and Kits

What are the best-selling Air Suspension and Kits for 2003 Cadillac CTSs?

Out of 6 Air Suspension and Kits that fit 2003 Cadillac CTSs, the following parts are the top sellers:

What’s the price range for 2003 Cadillac CTS Air Suspension and Kits?

The prices of Air Suspension and Kits for the 2003 Cadillac CTS range from $32.99 up to $324.99 for the most premium parts.

What is the average price of an Air Suspension and Kit for a 2003 Cadillac CTS?

The average price for Air Suspension and Kits for the 2003 Cadillac CTS is $180.49. Keep in mind the variety of part types within our Air Suspension and Kit category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Air Suspension and Kits for other Cadillac CTS model years?

Yes, we carry Air Suspension and Kits for 15 model years of Cadillac CTSs between 2004 and 2019. The following model years are the most popular for Air Suspension and Kit purchases: 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, and 2011.

What are the cheapest Air Suspension and Kits for my 2003 Cadillac CTS?

The cheapest 2003 Cadillac CTS Air Suspension and Kits we carry are:

Does Advance Auto Parts sell Air Suspension and Kits for any other 2003 Cadillac models?

What types of Air Suspension and Kits do you sell for my 2003 Cadillac CTS?

As of 3/1/26, these are some of the most in-demand types of Air Suspension and Kits for a 2003 Cadillac CTS:

Can I get help with 2003 Cadillac CTS Air Suspension and Kit orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Cadillac Air Suspension and Kits and more.

What is your return policy for Cadillac CTS Air Suspension and Kits?

Advance Auto Parts keeps returns simple. For new Cadillac CTS Air Suspension and Kits and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.