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BILSTEIN B3 Coil Spring - 37-171995

BILSTEIN B3 Coil Spring - 37-171995

BILSTEIN B3
Availability:
5+ in stock, ready to be shipped
SKU 37-171995
Save 54% Save 54%
$68.00
$68.00 - $68.00
$68.00
$31.15
$31.15 - $31.15
$31.15
CALIFORNIA WARNING

Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts.

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BILSTEIN B3

Coil Spring

This product also goes by these part numbers: 171 321 04 04, 1713210404, 37-171995, 37171995

This part also goes by the following cross reference.

Cross Reference Part Number: 1713210404

Fits These Vehicles 3 applications
Mercedes-Benz
Make Model Engine Years
Mercedes-Benz SLK350 3.5V6 2005–2011
Mercedes-Benz SLK300 3.0V6 2009–2011
Mercedes-Benz SLK280 3.0V6 2006–2008

Fitment data last updated: 2026-06-30

Fits 3 vehicle applications Check vehicle fitment before ordering View fitment

About these Springs

The BILSTEIN B3 37-171995 springs support the car's weight and set its ride height. Spring rate and height affect ride comfort, handling and how the car sits, and springs should always be replaced in pairs on the same axle.

Frequently asked questions

What are the signs of a worn or broken spring?

The car sitting lower at one corner, a clunk or rattle over bumps, a visibly cracked or broken coil, or uneven tire wear. Springs can also sag with age, reducing ride height and suspension travel.

Will lowering springs work with my original shocks?

They will fit, but lowering reduces the shock's working travel and many factory shocks are not valved for the higher spring rate. Pairing lowering springs with matching performance or shortened shocks gives better ride quality and shock life.

Do I need an alignment after fitting new springs?

Yes. Changing ride height changes camber and toe, so have a four-wheel alignment done after installation to protect your tires and handling.

Can I install springs myself?

Only with the right equipment. Coil springs store a large amount of energy; compressing them requires a proper spring compressor and doing it incorrectly can cause serious injury. If you do not have the tools and experience, have a professional fit them.

How do I make sure this spring fits my car?

Compare the part numbers listed on this page with the number on your old part or in your vehicle's parts catalog, and check the fitment information. If you are unsure, contact us with your VIN before ordering.

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