Restore controlled, confident damping at the rear of your Mazda with the KYB Excel-G Rear Shock Absorber 3440014. This nitrogen gas-charged, twin-tube shock is a direct-fit rear replacement for the 2014-2017 Mazda 6 and 2019-2023 Mazda CX-5 (see the Buyer's Guide tab for engine-level applications). KYB builds the Excel-G to restore a vehicle's original ride control, stability, and handling rather than change it — earning it the OEA (Original Equipment for the Aftermarket) classification.
- Nitrogen gas-charged, twin-tube design: KYB's recommended OEM-replacement damping to help bring back designed control and handling.
- Triple-lip fluid seal: reduces the chance of oil and gas leaking out of the shock.
- Vehicle-specific damping valves: hand-assembled in-house to manage tire contact, steering response, and body movement.
- Supports electronic safety systems: helps keep those systems performing as designed by maintaining intended suspension behavior.
Signs a rear shock may need replacing include excessive body movement over bumps, reduced stability during lane changes, longer stopping distances, and visible fluid leakage. Shocks work as a pair — replacing both rear units together helps keep damping balanced side to side. Sold individually; order 2 for a complete rear replacement.
Interchange: GJR928910H · KSC828700 · 5515
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What vehicles does the KYB 3440014 fit?
It's a rear shock absorber for the 2014-2017 Mazda 6 and 2019-2023 Mazda CX-5. Check the Buyer's Guide tab to confirm the engine-level application for your vehicle.
Is this a front or rear shock?
This KYB Excel-G 3440014 is a rear shock absorber for the listed applications.
What type of shock is the Excel-G?
It's a nitrogen gas-charged, twin-tube shock with a triple-lip fluid seal, built by KYB and classified as OEA (Original Equipment for the Aftermarket).
Do I need to replace both rear shocks?
Shocks work as a pair, so replacing both rear units together is recommended for balanced damping. This listing is sold individually; order 2 for a complete rear set.
What are signs my rear shock needs replacing?
Excessive body movement over bumps, reduced stability during lane changes, longer stopping distances, or fluid leaking from the shock. Diagnose the cause before replacing.
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