| Parameter Item | Nominal Value | Tolerance | Unit |
| Wire Diameter | 17.5 | ±0.20 | mm |
| Outer Diameter | 161.0 | ±2.0 | mm |
| Inner Diameter | 126.0 | ±2.0 | mm |
| Free Length | 281.0 | ±3.0 | mm |
| Total Coils | 5.5 | ±0.25 | Coils |
| Active Coils | 4.0 | ±0.25 | Coils |
| Direction | Right-hand | — | / |
| End Type | Closed & Ground Flat | — | / |
| Spring Rate | 385 | ±4% | N/mm |
| Hardness | 48–51 | ±2 | HRC |
OEM Part Number:55350-4D051
Replaced by: 55350-4D051-DS (Latest Revision)
Alternate OE: 55350-4D250, 55350-4D251
Product Name: Rear Suspension Coil Compression Spring
Application: Kia Sedona / Carnival (Short Wheelbase) 2006–2014
Position: Rear Axle, Left & Right Universal
Weight: 4.25 kg (9.37 lbs)
Material: 55CrSi / SUP9 High Strength Chromium Silicon Spring Steel
Quality Standard: ISO/TS16949, JIS G 4801
Recommended Replacement: Replace in pairs (LH+RH)
Warranty: 1 Year / 80,000 km
