Keep body movement in check and restore the control your crossover left the factory with using the KYB Excel-G Suspension Shock Absorber (MPN 3440142), a rear gas shock that drops in as a direct-fit replacement for the 2019-2023 Mazda CX-9 (see the Buyer's Guide tab for engine-level fitment). KYB is a world-leading supplier of shocks and struts to new-vehicle manufacturers, and the Excel-G is built on the same OE assembly lines with the same OE-quality components, calibrated to restore original designed performance rather than change it — the classification KYB calls OEA (Original Equipment for the Aftermarket).
- Nitrogen gas-charged, twin-tube design: includes every quality component found in KYB's global OEM products.
- Triple-lip fluid seal: reduces the chance of oil and gas leaking out.
- Vehicle-specific damping valves: hand-assembled in-house to correctly manage tire contact, steering response and body movement.
- Helps keep Electronic Safety Systems performing as designed by supporting the suspension, brakes and tires the vehicle relies on.
KYB positions the Excel-G as the #1 recommended Original Equipment replacement choice for Asian SUVs and crossovers. Sold individually; for even, balanced ride control, replacing both rear shocks together as a matched pair is recommended.
Interchange: TN3928700A · TN3928910B
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What is the KYB Excel-G 3440142?
It is a rear nitrogen gas-charged, twin-tube suspension shock absorber. KYB builds the Excel-G on its OE assembly lines to restore a vehicle's original designed ride control and handling.
Does this shock fit my vehicle?
It is a direct-fit replacement for the 2019-2023 Mazda CX-9. Check the Buyer's Guide tab to confirm the correct application and engine for your vehicle before ordering.
Is this a front or rear shock?
This is a rear shock absorber. Confirm the position needed for your specific vehicle in the Buyer's Guide tab before ordering.
How many should I buy?
Shocks are sold individually, so this listing is for one. Replacing both rear shocks together as a matched pair is recommended for even, balanced ride control.
What does the triple-lip seal do?
The triple-lip fluid seal is designed to reduce the chance of oil and gas leaking out, helping the shock maintain its damping performance.
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