6 Coil Spring Suspension

Specification: 13.8*330*5
Material: 55SiCrA oil-quenched wires
The front coil spring for ix35 has a product diameter of 13.8 mm and 5 coils. Many products on the market have a diameter of 12.8 mm, which can also be used without any impact. The original standard part number is 54530-2S00A, and it is a MacPherson strut coil spring.

The MacPherson strut coil spring fits a “shock absorber” and a “spring” on the same strut, and can both bounce and absorb shocks. It has the simplest structure, the lowest cost, and saves the most space, and is used in 90% of front suspensions of family cars. Why is it called the MacPherson strut coil? In 1950, Chevrolet engineer Earle MacPherson invented it by combining the originally separated spring and shock absorber, eliminating two upper control arms and directly fixing it to the wheel arch. The extremely simple structure leads to low cost, which makes it spread rapidly.

Although the front spring (MacPherson strut coil spring) of ix35 is just a “black iron ring”, it directly determines why this car can be used not only as an urban commuting SUV but also occasionally for driving on rural and dirt roads.

In Hyundai automobiles, the i-series is the latest series. As an urban SUV with both appearance and strength, the ix35 was developed and designed by Hyundai in Frankfurt, Germany and has achieved success in the European market. It has an authentic European style, which has created favorable conditions for the ix35 to smoothly enter the high-end SUV market and be recognized by urban elite groups after its launch.

The structural features and advantages of the ix35 front spring are as follows:
1) SLC (Side-Load Coil)
The axis of the spring forms an angle of 3-4° with the axis of the shock absorber, making the direction of the elastic force coincide with the resultant force direction of the wheel jump. This reduces the lateral force on a piston rod by 15% and extends the service life of the shock absorber by 10%. It also makes a steering wheel return more smoothly.
2) Double-layer corrosion resistance
Black epoxy spraying + PVC transparent sheath, which effectively prevents corrosion and is not prone to rusting
3) Ground end coils + positioning boss
1.5 coils at both the upper and lower ends are ground and engaged with the boss of a spring seat, so it is not easy to make a “circling” noise when going over potholes. When replacing the spring after sales, be sure to align the boss correctly, otherwise, there will be a “clicking” metallic knocking sound.
4) Durability: with SLC lateral unloading and double-layer corrosion resistance, it can withstand 200,000 cycles of testing without cracks, while the average for joint-venture SUVs of the same price is 150,000 cycles
5) Replacement is easy: replacing the spring does not require disassembling a knuckle, and it can be completed in 30 minutes at a roadside repair shop
6) Strong compatibility: the outer diameter is 155-160 mm, and the inner diameter is 129 mm, which is the same as the front springs of Sonata VIII, Sportage, and K5. Second-hand dismantled parts are easy to find, and the maintenance cost is low.