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KYB 3440021 Shock Absorber - Rear
| Brand | KYB 3346 |
|---|---|
| Center Electrode Tip Material | Platinum |
| Classification | Champion Platinum Power |
| Electrical Terminal Type | Non-Removable Nut |
| Ground Electrode Core Material | Nickel |
| Ground Electrode Quantity | 1 |
| Hex Size | 0.625 |
| Hex Size | 15.880 |
| Hex Type | Hex |
| Insulator Height | 0.06 |
| Manufacturer Heat Range | 10 |
| Plug Type | RC10PYC |
| Pre-Gap Size | 0.046 |
| Pre-Gap Size | 1.16 |
| Reach | 0.75 |
| Resistor Type | Yes |
| Seat Type | Flat |
| Thread Diameter | 0.551 |
| Thread Diameter | 14.000 |
| Product line | Excel-G |
| Fits | —17 vehicles |
OEA replacement. Restores original ride control, stability, and handling.
Nitrogen gas-charged. Twin-tube design helps deliver consistent damping performance.
Triple lip fluid seal. Helps reduce the chance of oil and gas leaks.
Cross-references Kia 553111D010, Kia 553112G100 and Kia 553112G300 for the same application. See all 5.
KYB Excel-G Rear Shock for Kia Optima and Rondo
KYB Excel-G 3440021 is a rear suspension shock absorber built to restore original ride control, stability, and steering response. It is a nitrogen gas-charged, twin-tube design made on KYB OE assembly lines with OE-quality components for a direct replacement approach on select Kia Optima, Kia Magentis, and Kia Rondo applications.
Key Features
- Recommended OEM replacement shock for SUVs and crossovers
- Restores designed control and handling on Kia rear suspension applications
- Triple-lip fluid seal helps reduce oil and gas leakage
- Vehicle-specific, hand-assembled damping valves manage tire contact, steering response, and body movement
- Supports proper operation of electronic safety systems by maintaining suspension performance as engineered
- Heavy-duty strut body and bracket construction helps minimize flex and maintain alignment
- Rear shock absorber with compressed length 13.77 in., extended length 21.41 in., and stroke length 7.64 in.
Product Details
The KYB Excel-G line is engineered to return the vehicle to its original damping characteristics rather than change ride feel. For drivers searching for a rear shock absorber for 2006-2012 Kia Optima, 2006-2010 Kia Magentis, or 2007-2012 Kia Rondo, KYB 3440021 provides an OE-style solution focused on control, stability, and consistent suspension response. This part cross-references Monroe Shocks & Struts 5615 for the same application.
What This Shock Absorber Helps Address
- Excessive rear bounce after bumps
- Loose or unstable handling during lane changes
- Reduced tire contact and uneven road control
- Noise or vibration from worn rear suspension damping
- Loss of original ride control on aging Kia rear suspension systems
Installation Notes and Tips
Compatible With select rear applications on 2006-2012 Kia Optima, 2006-2010 Kia Magentis, and 2007-2012 Kia Rondo. For 2007-2010 Kia Optima and 2007-2010 Kia Rondo, replace the suspension strut and coil spring assembly according to the manufacturer’s instructions. KYB recommends new strut mounts, part number SM5091, to reduce noise and vibration, and a KYB strut boot, part number SB114, to help protect the unit from dirt, debris, and salt.
Quality Assurance
KYB is a major OE supplier, and Excel-G is built on the same KYB OE assembly lines using OE-quality components. The Excel-G line is classified as OEA, reflecting its focus on restoring original equipment performance for Kia Optima, Kia Magentis, and Kia Rondo rear suspension service.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2012 | Kia | Rondo | — | — | Rear | Recommended OEM Replacement; Excel-G |
| 2011 | Kia | Rondo | — | — | Rear | Recommended OEM Replacement; Excel-G |
| 2010 | Kia | Magentis | — | — | Rear | Recommended OEM Replacement; Excel-G |
| 2010 | Kia | Optima | — | — | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G |
| 2010 | Kia | Rondo | — | — | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G |
| 2009 | Kia | Magentis | — | — | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G |
| 2009 | Kia | Optima | — | — | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G |
| 2009 | Kia | Rondo | — | — | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G |
| 2008 | Kia | Magentis | — | — | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G |
| 2008 | Kia | Optima | — | — | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G |
| 2008 | Kia | Rondo | — | — | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G |
| 2007 | Kia | Magentis | — | — | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G |
| 2007 | Kia | Optima | — | — | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G |
| 2007 | Kia | Rondo | — | — | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G |
| 2006 | Kia | Magentis | — | — | Rear | Recommended OEM Replacement; (New Style); Excel-G |
| 2006 | Kia | Optima | 2.4L | L4 | Rear | Recommended OEM Replacement; (New Style); Excel-G |
| 2006 | Kia | Optima | 2.7L | V6 | Rear | Recommended OEM Replacement; (New Style); Excel-G |
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