KYB 3440112 Shock Absorber - Rear

KYB Excel-G Rear Shock for Mazda CX-9

The KYB Excel-G 3440112 is a rear suspension shock absorber for 2016-2018 Mazda CX-9 models. Built on KYB OE assembly lines with OE-quality components, it is calibrated to restore original ride control, stability, lane-change response, and handling.

For Mazda CX-9 rear suspension service, the Excel-G line focuses on returning the vehicle to its designed damping characteristics rather than changing ride feel. This makes the KYB Excel-G 3440112 a direct choice for drivers and technicians looking to restore factory-style control.

Key Features

• Nitrogen gas-charged twin-tube shock absorber design
• OE-style replacement for Asian SUVs and crossovers
• Vehicle-specific, hand-assembled damping valves
• Triple-lip fluid seal helps reduce oil and gas leakage
• Supports proper tire contact, steering response, and body motion control
• Helps maintain the suspension performance expected by electronic safety systems
• Rear position application for 2016-2018 Mazda CX-9

Product Details

KYB Excel-G is KYB’s Original Equipment for the Aftermarket line, built to restore the vehicle’s original suspension behavior using the same type of engineering approach found in OE production. The 3440112 rear shock absorber is specified for the Mazda CX-9 and uses a twin-tube, gas-charged construction with a compressed length of 17.59 in., extended length of 26.77 in., and stroke length of 9.18 in. Mounting details include an E2 lower mount (14.2 x 46) and an S1 upper mount (8 mm). This part cross-references Mazda TK4828910G and TK5028910G for the same application.

What It Helps Address

• Excessive rear bounce after bumps
• Loose or unsettled rear-end handling
• Reduced lane-change responsiveness
• Uneven tire contact caused by worn damping
• Suspension noise or fluid leakage from a worn shock absorber

Installation Notes

Fits 2016-2018 Mazda CX-9, rear. Replace the suspension strut and coil spring assembly according to the manufacturer’s instructions. Verify mount style, compressed length, and extended length before installation. Professional installation is recommended for proper suspension alignment and performance.

Quality Assurance

KYB supplies shocks and struts to new vehicle manufacturers, and the Excel-G line is produced on the same OE assembly lines using OE-quality components. The design is intended to restore original suspension performance for the Mazda CX-9 rather than alter it.