KYB 344419 Shock Absorber - Rear

KYB Excel-G Rear Shock for Ford Super Duty

The KYB Excel-G 344419 is a rear suspension shock absorber built to restore original ride control on Ford Super Duty trucks. It is a direct OE-style replacement for applications where stable handling, braking response, and consistent body control matter.

Built on KYB OE assembly lines, the Excel-G line is calibrated to return the vehicle to its designed performance rather than change the ride character. For Ford F-250 Super Duty and Ford F-350 Super Duty rear suspension service, part number 344419 provides a vehicle-specific replacement solution.

Key Features

• KYB recommended OEM replacement shock for rear suspension service
• Nitrogen gas-charged twin-tube design for controlled damping
• Triple-lip fluid seal helps reduce oil and gas leakage
• Vehicle-specific, hand-assembled damping valves manage tire contact, steering response, and body movement
• Strong strut body and bracket construction helps minimize flex and maintain alignment
• Dust cover included
• R-stop and OE-style mounting configuration: upper E1, lower E2 (12x38)

Product Details

KYB Excel-G is the brand’s OE replacement line for restoring factory-style ride control. This rear shock absorber uses OE-quality components and is calibrated to match the original suspension behavior of the truck. The design supports stable lane changes, braking consistency, and predictable handling on heavy-duty Ford applications. This part cross-references Monroe Shocks & Struts (e.g., 34687) for the same application.

Compatible With 2008-2016 Ford F-350 Super Duty, rear, recommended OEM replacement; w/ Off Road Suspension; Excel-G. Compatible With 1999-2007 Ford F-350 Super Duty, rear, replace suspension strut and coil spring assembly according to manufacturer's instructions; Excel-G. Compatible With 1999-2004 Ford F-250 Super Duty, rear, replace suspension strut and coil spring assembly according to manufacturer's instructions; Excel-G. The KYB 344419 is also referenced in Ford service applications for these Super Duty rear shock positions.

What It Helps Address

• Excessive rear bounce or oscillation
• Loose or unsettled handling during lane changes
• Reduced braking stability from worn rear damping
• Uneven tire contact caused by weak shock control
• Body movement that feels uncontrolled over rough roads

Installation Notes

Install in the rear position only. Verify mounting style, compressed length, extended length, and stroke before installation: 17.52 in. compressed length, 30.07 in. extended length, and 12.55 in. stroke. On 1999-2007 Ford F-350 Super Duty and 1999-2004 Ford F-250 Super Duty applications, follow the manufacturer’s instructions for replacing the suspension strut and coil spring assembly. Confirm the vehicle’s suspension configuration, including off-road suspension on 2008-2016 Ford F-350 Super Duty models, before ordering.

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 344419 is an Original Equipment for the Aftermarket (OEA) replacement designed to restore factory-calibrated suspension performance on Ford Super Duty trucks.