| Parameter Item | Nominal Value | Tolerance | Unit |
| Wire Diameter | 15.5 | ±0.15 | mm |
| Outer Diameter | 182.0 | ±1.5 | mm |
| Inner Diameter | 151.0 | ±1.5 | mm |
| Free Length | 420.0 | ±3.0 | mm |
| Total Coils | 6.7 | ±0.25 | Coils |
| Active Coils | 5.4 | ±0.25 | Coils |
| Direction | Right-hand | — | / |
| End Type | Closed & Ground Flat | — | / |
| Spring Rate | 480 | ±4.0% | N/mm |
| Hardness | 48–50 | ±2 | HRC |
OEM Part Number:54630-2T010
Replaced by: 54630-2T010 (Latest Revision)
Alternate OE: 546302T010, KILEN 14062, LESJÖFORS 4056855
Product Name: Front Suspension Coil Compression Spring
Application: Hyundai Sonata / Kia Optima (2010–2015)
Position: Front Axle, Left & Right Universal
Weight: 4.05 kg (8.93 lbs)
Material: 60Si2Mn / SUP10 High Strength Spring Steel
Quality Standard: ISO/TS16949, JIS G 4801
Recommended Replacement: Replace in pairs (LH+RH)
Warranty: 1 Year / 100,000 km
