Help keep your Super Duty planted and controlled with the KYB Excel-G Rear Shock Absorber 344413, a nitrogen gas-charged, twin-tube gas shock designed to restore the original ride control, stability, and handling your truck was built with. It installs as a direct-fit rear replacement for the 2003-2004 Ford F-250 Super Duty and F-350 Super Duty, plus the 2008-2010 and 2015-2016 Ford F-450 Super Duty. See the Buyer's Guide tab for engine-level fitment.
- OEA (Original Equipment for the Aftermarket): made on the same KYB OE assembly lines with OE-quality components, calibrated to restore designed performance rather than change it.
- Vehicle-specific damping valves: hand assembled in-house to manage tire contact, steering response, and body movement.
- Triple-lip fluid seal: reduces the chance of oil and gas leaking out.
- Twin-tube gas design: KYB's recommended OEM replacement shock that helps keep Electronic Safety Systems performing as the vehicle manufacturer intended.
Shocks wear together, so replacing both sides of the axle as a matched pair is recommended for balanced, even control. Sold individually — this listing is for one shock.
Interchange: 9C3Z18125C · G63810 · 34687
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What vehicles does the KYB 344413 fit?
It's a rear direct-fit for the 2003-2004 Ford F-250 Super Duty and F-350 Super Duty, plus the 2008-2010 and 2015-2016 Ford F-450 Super Duty. Check the Buyer's Guide tab to confirm your vehicle.
Is this a front or rear shock?
It is cataloged as a rear shock absorber for the listed Ford Super Duty applications.
What type of shock is the Excel-G 344413?
It's a nitrogen gas-charged, twin-tube design that uses OE-quality components on KYB's OE assembly lines, earning its OEA (Original Equipment for the Aftermarket) classification.
Should I replace shocks in pairs?
Shocks wear together, so replacing both sides of the axle as a matched pair is recommended for even, balanced control. This listing is for one shock, sold individually.
What interchange numbers does it cross to?
It replaces 9C3Z18125C, G63810, and 34687. Match your original part number and confirm fitment before ordering.
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