Coil Springs

550201CF1A - : Coil Spring for Infiniti Image

Coil Spring

Infiniti 550201CF1A
FX35, FX50. QX70. FX37.
Discontinued
5401031U23 - : Coil Spring for Infiniti Image

Coil Spring

Infiniti 5401031U23
I30. Manual trans.
Discontinued
55020EG010 - : Coil Spring for Infiniti Image

Coil Spring

Infiniti 55020EG010
4-Wheel Steering. M35. 2wd. With sport pkg. Without awd, with sport. M45. 2wd.
Discontinued
5502062U20 - : Coil Spring for Infiniti Image

Coil Spring

Infiniti 5502062U20
Q45. 2 wheel steering, with active suspension.
Discontinued
54010CM30A - : Coil Spring for Infiniti Image

Coil Spring

Infiniti 54010CM30A
Sport Suspension. G35. Manual trans. Sedan. 2wd. To 1/06.
Discontinued
55020CG206 - : Coil Spring for Infiniti Image

Coil Spring

Infiniti 55020CG206
Fx. Awd. 4wd.
Discontinued
550206P007 - : Coil Spring for Infiniti Image

Coil Spring

Infiniti 550206P007
Q45. Standard suspension. From 01/1998. Exc.Touring Suspension. To 01/1998. Exc.Hard Ride Suspension. Without Touring.
Discontinued
54010EG01A - : Coil Spring for Infiniti Image

Coil Spring

Infiniti 54010EG01A
2wd, with sport package. M35. 2wd. With sport pkg. M45. 2wd. From 06/2008. 4-Wheel Steering.
Discontinued
54010EJ30B - : Coil Spring for Infiniti Image

Coil Spring

Infiniti 54010EJ30B
Awd. M45.
Discontinued
55020AM82A - : Coil Spring for Infiniti Image

Coil Spring

Infiniti 55020AM82A
G35. Coupe, with sport. Sport Suspension.
Discontinued
550202W100 - : Coil Spring for Infiniti Image

Coil Spring

Infiniti 550202W100
To 12/1998.
Discontinued

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Coil Springs and Balanced Ride Control

Coil springs are an important part of how a vehicle supports weight and responds to changing road conditions. They carry the load of the vehicle while allowing the suspension to move smoothly over uneven surfaces. At Douglas INFINITI, these components are often discussed during routine suspension evaluations. Normal driving habits and environmental exposure influence how coil springs age.

What Coil Springs Do Every Day

Coil springs are part of the suspension system and are designed to compress and rebound as the vehicle travels over bumps or dips. This action helps maintain ride height and keeps the tires planted on the road. INFINITI models such as the INFINITI Q50 and INFINITI QX60 use springs engineered for their specific weight and chassis layout.

Why Coil Springs Wear Out

Over time, repeated compression cycles can lead to metal fatigue. Moisture and road debris may also contribute to corrosion, especially in regions with seasonal weather changes. These factors can result in sagging or uneven stance.

Choosing Proper Replacement Parts

Genuine INFINITI coil springs are designed to align with original specifications for height and load rate. Variations in generic replacements may affect how related parts like shocks and struts operate. Installation requirements may vary. Professional installation or consultation with a qualified technician is recommended. Douglas INFINITI provides access to OEM components matched to manufacturer intent.